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Dr. Jorge Aburto
Management of Biomass Conversion, Instituto Mexicano del Petróleo, Mexico City 07730, Mexico

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0 Bioenergy
0 Biofuels
0 Techno-economic Analysis
0 life cycle analysis
0 Bio-based chemicals and materials

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Techno-economic Analysis
life cycle analysis

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Article
Published: 10 August 2021 in BioEnergy Research
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The present work investigated the techno-economic feasibility of using gasification as an alternative to direct combustion to generate steam and electric power generation in a sugarcane mill using different types of solid biofuels. Two cogeneration scenarios were analyzed: scenario 1 (S1), using a boiler and steam turbines only, while scenario 2 (S2) uses gas and steam turbines. It was found that for a solid biofuel cost of 8 US $/ton, the economic results between types of biomass are similar, but at a higher solid biofuel cost, the cost of energy production is lower in S2 when compared to S1. The cost of generated power in S1 using sugarcane bagasse (0.091 US $/kWh) is higher than the cost considered for grid electricity (0.077 US$/kWh), while in S2 is lower (0.063 US$/kWh); therefore, electricity might be exported to the grid at a competitive price in S2. In both scenarios, the greatest contribution to the total annual costs comes from the investment required by about 83%. In the case of the other biofuels, such as cladodes, oil brunches, and coffee pulp, the cost obtained is less than 0.077 US$/kWh for all cases in both scenarios, except for the tender cladodes in S1, mainly due to its higher moisture content. The systems studied in S2 using oil palm empty brunches as complementary solid biofuel in the sugar mill are recommended for year-round bioenergy production.

ACS Style

Jorge Aburto; Elias Martinez-Hernández; Myriam A. Amezcua-Allieri. Techno-Economic Feasibility of Steam and Electric Power Generation from the Gasification of Several Biomass in a Sugarcane Mill. BioEnergy Research 2021, 1 -10.

AMA Style

Jorge Aburto, Elias Martinez-Hernández, Myriam A. Amezcua-Allieri. Techno-Economic Feasibility of Steam and Electric Power Generation from the Gasification of Several Biomass in a Sugarcane Mill. BioEnergy Research. 2021; ():1-10.

Chicago/Turabian Style

Jorge Aburto; Elias Martinez-Hernández; Myriam A. Amezcua-Allieri. 2021. "Techno-Economic Feasibility of Steam and Electric Power Generation from the Gasification of Several Biomass in a Sugarcane Mill." BioEnergy Research , no. : 1-10.

Journal article
Published: 11 July 2021 in Energies
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This paper presents bioenergy value chain modelling to estimate the biomass and bioenergy cost of production and biomass netback in combined heat and power (CHP) systems. Modelling compares biomass cost and netback to analyse the feasibility of CHP systems, as well as the internal rate of return (IRR) and payback period (PBP). Models are implemented into the IMP Bio2Energy® software (Instituto Mexicano del Petróleo, Mexico City, Mexico) for practical application and demonstrated for bioenergy generation in the agroindustrial processes of tequila production, coffee and orange processing using as biomass the agave bagasse, coffee pulp and orange peels coproducts, respectively. Results show that the CHP systems are economically feasible, i.e., biomass cost of production is lower than netback, PBP between 3 and 4 years and IRR > 20%. The cost of bioenergy is lower than the cost of fuel oil and grid electricity being replaced. The sensitivity analysis for boiler steam pressure showed that there is an optimal pressure for coffee pulp (40 bar), a threshold pressure for orange (60 bar) and agave bagasse (70 bar). Sensitivity to biomass input indicated a maximum capacity where economy of scale does not produce any improvement in the indicators. Results demonstrate the usefulness of the modelling approach and IMP Bio2Energy® in analysing biomass CHP systems.

ACS Style

Elias Martinez-Hernandez; Myriam Amezcua-Allieri; Jorge Aburto. Assessing the Cost of Biomass and Bioenergy Production in Agroindustrial Processes. Energies 2021, 14, 4181 .

AMA Style

Elias Martinez-Hernandez, Myriam Amezcua-Allieri, Jorge Aburto. Assessing the Cost of Biomass and Bioenergy Production in Agroindustrial Processes. Energies. 2021; 14 (14):4181.

Chicago/Turabian Style

Elias Martinez-Hernandez; Myriam Amezcua-Allieri; Jorge Aburto. 2021. "Assessing the Cost of Biomass and Bioenergy Production in Agroindustrial Processes." Energies 14, no. 14: 4181.

Research article
Published: 12 May 2021 in ACS Sustainable Chemistry & Engineering
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The diversity of biomass and its conversion processes produce a diverse pool of functional molecules. For many of these molecules, property data have not been measured yet and need to be estimated to determine suitability to a particular application. For example, viscosity is a key property in the development of green solvents, fuel additives, and biofuels. This paper proposes the use of modularity as a molecular descriptor combined with functional group counts to estimate molecular properties using neural network models. The modularity of molecules was determined from graph representations using community detection algorithms. The potential for this approach was demonstrated for the modeling of viscosity at 25 °C and applied to biomass-derived molecules. The model performances showed that including modularity contributed to more accurate estimations than viscosity models existing in the literature. Furthermore, modularity on its own can be useful to estimate viscosity for n-alkanes, esters, isoalkanes, aldehydes, aromatics, and cycloalkanes. This was due to the capacity of modularity to capture the structural features of the molecules employed in the data set. As such, modularity exhibited its tremendous potential to be exploited for property estimation, supporting the screening, rational design, and engineering of green chemicals derived from biomass.

ACS Style

Elias Martinez-Hernandez; Diego Valencia; Cristopher Arvizu; Diego Francisco Romero Alatorre; Jorge Aburto. Molecular Graph Modularity as a Descriptor for Property Estimation—Application to the Viscosity of Biomass-Derived Molecules. ACS Sustainable Chemistry & Engineering 2021, 9, 7044 -7052.

AMA Style

Elias Martinez-Hernandez, Diego Valencia, Cristopher Arvizu, Diego Francisco Romero Alatorre, Jorge Aburto. Molecular Graph Modularity as a Descriptor for Property Estimation—Application to the Viscosity of Biomass-Derived Molecules. ACS Sustainable Chemistry & Engineering. 2021; 9 (20):7044-7052.

Chicago/Turabian Style

Elias Martinez-Hernandez; Diego Valencia; Cristopher Arvizu; Diego Francisco Romero Alatorre; Jorge Aburto. 2021. "Molecular Graph Modularity as a Descriptor for Property Estimation—Application to the Viscosity of Biomass-Derived Molecules." ACS Sustainable Chemistry & Engineering 9, no. 20: 7044-7052.

Original research article
Published: 20 January 2021 in Frontiers in Energy Research
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Sugarcane is a major crop produced in many tropical countries including Mexico and has been the basis of a well-established agroindustry. However, the variation in market prices and health concerns over the consumption of sugar are challenging the economics and sustainability of sugarcane growers and mills. This paper presents a techno-economic assessment of using existing production capacity of sugarcane in Mexico and the correspondent Mexican sugarcane mills for producing ethanol as gasoline oxygenate, in comparison to the export of excess sugar production. Using the most recent statistics, we found out that the bioethanol potential is of 849,260,499 L/year which can cover for 100% of the premium and magna gasoline demand in metropolitan area (MA) and 48% of premium gasoline in rest of the country areas (RoCAs) at 5.8% w/v blending (2.7% O2 w/v). This can be done by diverting the 20% sugar production excess to ethanol with the benefit of a higher gross netback of 308.3 USD/ton of sugarcane in comparison to 222.5 USD/ton of sugarcane when it is exported. Furthermore, a minimum ethanol-selling price (MESP) of 0.5211 USD/L was estimated, showing that ethanol might be competitive against methyl tert-butyl ether (0.50 USD/L FOB Gulf price) as gasoline oxygenate agent. Decarbonizing gasoline in Mexico through the use of ethanol might allow the abatement of 5,766.8 kg CO2/day when 20% sugar is used. Concerning the underconstruction Dos Bocas refinery in Tabasco State, southern Mexico, ethanol blend at 5.8% in gasolines might but also contribute to the abatement of 6.1% of CO2 emissions and the required sugarcane was estimated at 1 million tons per year. All these indicate that sugarcane has a great potential as a feedstock to produce first-generation ethanol as a gasoline oxygenate agent in Mexico.

ACS Style

Jorge Aburto; Elías Martínez-Hernández. Is Sugarcane a Convenient Feedstock to Provide Ethanol to Oxygenate Gasolines in Mexico? A Process Simulation and Techno-Economic-Based Analysis. Frontiers in Energy Research 2021, 8, 1 .

AMA Style

Jorge Aburto, Elías Martínez-Hernández. Is Sugarcane a Convenient Feedstock to Provide Ethanol to Oxygenate Gasolines in Mexico? A Process Simulation and Techno-Economic-Based Analysis. Frontiers in Energy Research. 2021; 8 ():1.

Chicago/Turabian Style

Jorge Aburto; Elías Martínez-Hernández. 2021. "Is Sugarcane a Convenient Feedstock to Provide Ethanol to Oxygenate Gasolines in Mexico? A Process Simulation and Techno-Economic-Based Analysis." Frontiers in Energy Research 8, no. : 1.

Paper
Published: 23 April 2020 in Green Chemistry
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Chelation of nickel species was used for the synthesis of highly active, stable and selective heterogeneous catalysts for biomass conversion.

ACS Style

Diego Valencia; Citlalli Zenteno; Diana Gómora-Herrera; María Teresa Gómez-Pérez; Jorge Aburto. Ni-Based heterogeneous catalysts for the transformation of fatty acids into higher yields of O-free hydrocarbons. Green Chemistry 2020, 22, 3470 -3480.

AMA Style

Diego Valencia, Citlalli Zenteno, Diana Gómora-Herrera, María Teresa Gómez-Pérez, Jorge Aburto. Ni-Based heterogeneous catalysts for the transformation of fatty acids into higher yields of O-free hydrocarbons. Green Chemistry. 2020; 22 (11):3470-3480.

Chicago/Turabian Style

Diego Valencia; Citlalli Zenteno; Diana Gómora-Herrera; María Teresa Gómez-Pérez; Jorge Aburto. 2020. "Ni-Based heterogeneous catalysts for the transformation of fatty acids into higher yields of O-free hydrocarbons." Green Chemistry 22, no. 11: 3470-3480.

Journal article
Published: 05 March 2020 in Sustainability
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Planet Earth is under severe stress from several inter-linked factors mainly associated with rising global population, linear resource consumption, security of resources, unsurmountable waste generation, and social inequality, which unabated will lead to an unsustainable 21st Century. The traditional way products are designed promotes a linear economy that discards recoverable resources and creates negative environmental and social impacts. Here, we suggest multi-disciplinary approaches encompassing chemistry, process engineering and sustainability science, and sustainable solutions in “game changer” challenges in three intersecting arenas of food: Sustainable diet, valorisation of unavoidable food supply chain wastes, and circularity of food value chain systems aligning with the United Nations’ seventeen Sustainable Development Goals. In the arena of sustainable diet, comprehensive life cycle assessment using the global life cycle inventory datasets and recommended daily servings is conducted to rank food choices, covering all food groups from fresh fruits/vegetables, lentils/pulses and grains to livestock, with regard to health and the environment, to emphasise the essence of plant-based diet, especially plant-based sources of protein, for holistic systemic sustainability and stability of the earth system. In the arena of unavoidable food supply chain wastes, economically feasible and synergistically (energy and material) integrated innovative biorefinery systems are suggested to transform unavoidable food waste into functional and platform chemical productions alongside energy vectors: Fuel or combined heat and power generation. In the arena of circularity of food value chain systems, novel materials and methods for plant-based protein functionalisation for food/nutraceutical applications are investigated using regenerative bio-surfactants from unavoidable food waste. This circular economy or industrial symbiosis example thus combines the other two arenas, i.e., plant-based protein sourcing and unavoidable food waste valorisation. The multi-disciplinary analysis here will eventually impact on policies for dietary change, but also contribute knowledge needed by industry and policy makers and raise awareness amongst the population at large for making a better approach to the circular economy of food.

ACS Style

Jhuma Sadhukhan; Tom I. J. Dugmore; Avtar Matharu; Elias Martinez-Hernandez; Jorge Aburto; Pattanathu K. S. M. Rahman; Jim Lynch. Perspectives on “Game Changer” Global Challenges for Sustainable 21st Century: Plant-Based Diet, Unavoidable Food Waste Biorefining, and Circular Economy. Sustainability 2020, 12, 1976 .

AMA Style

Jhuma Sadhukhan, Tom I. J. Dugmore, Avtar Matharu, Elias Martinez-Hernandez, Jorge Aburto, Pattanathu K. S. M. Rahman, Jim Lynch. Perspectives on “Game Changer” Global Challenges for Sustainable 21st Century: Plant-Based Diet, Unavoidable Food Waste Biorefining, and Circular Economy. Sustainability. 2020; 12 (5):1976.

Chicago/Turabian Style

Jhuma Sadhukhan; Tom I. J. Dugmore; Avtar Matharu; Elias Martinez-Hernandez; Jorge Aburto; Pattanathu K. S. M. Rahman; Jim Lynch. 2020. "Perspectives on “Game Changer” Global Challenges for Sustainable 21st Century: Plant-Based Diet, Unavoidable Food Waste Biorefining, and Circular Economy." Sustainability 12, no. 5: 1976.

Paper
Published: 20 January 2020 in New Journal of Chemistry
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Ni catalysts supported on KIT-5 are attractive heterogeneous catalysts for hydrodeoxygenation of biomass feedstocks.

ACS Style

Diego Valencia; Citlalli Zenteno; Perla Morales-Gil; Leonardo Díaz-García; Diana Gómora-Herrera; Eduardo Palacios; Jorge Aburto. Ultra-low loading of Ni in catalysts supported on mesoporous SiO2 and their performance in hydrodeoxygenation of palmitic acid. New Journal of Chemistry 2020, 44, 2435 -2441.

AMA Style

Diego Valencia, Citlalli Zenteno, Perla Morales-Gil, Leonardo Díaz-García, Diana Gómora-Herrera, Eduardo Palacios, Jorge Aburto. Ultra-low loading of Ni in catalysts supported on mesoporous SiO2 and their performance in hydrodeoxygenation of palmitic acid. New Journal of Chemistry. 2020; 44 (6):2435-2441.

Chicago/Turabian Style

Diego Valencia; Citlalli Zenteno; Perla Morales-Gil; Leonardo Díaz-García; Diana Gómora-Herrera; Eduardo Palacios; Jorge Aburto. 2020. "Ultra-low loading of Ni in catalysts supported on mesoporous SiO2 and their performance in hydrodeoxygenation of palmitic acid." New Journal of Chemistry 44, no. 6: 2435-2441.

Journal article
Published: 30 September 2019 in Food and Bioproducts Processing
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The use of alternative energy that is economically favorable for power generation is not a new issue, but the need to transit to a new energy low carbon pool is growing and replacing the use of fossil fuels stepwise by other cleaner energies, like bioenergy. The production of sugarcane and derivatives is a high energy intensive industry that has partially replaced the use of fossil fuels in the sugar mills, in order to diminish operational costs and improving the performance due to cogeneration capabilities. Nevertheless, there are few techno-economic analysis derived from the substitution of fossil fuels by biomass in energy cogeneration together with environmental impacts. In this work, we compare the techno-economical implementation and attributional life cycle analysis of a sugar production process using fuel oil or sugarcane bagasse for energy cogeneration of a sugar mill located in southern Mexico. The results favor the use of sugar cane bagasse with a bagasse processing capacity of 2,852 tons per day when compared to the use of fuel oil. The first shows a cost per unit of energy produced of 5.5 vs. 14 USD/GJ for fuel oil; and a potential environmental impact index of 2,528 vs. 20,200 PEI/GJ for the latter. The use of solid biofuels derived from wastes in food-related industries, such as sugar production, can support positive synergies at the environmental-water-food-energy nexus.

ACS Style

Myriam A. Amezcua-Allieri; Elías Martínez-Hernández; Omar Anaya-Reza; Moisés Magdaleno-Molina; Luis A. Melgarejo-Flores; M. Esther Palmerín-Ruiz; Juan A. Zermeño Eguía-Lis; Andrés Rosas-Molina; Manuel Enríquez-Poy; Jorge Aburto. Techno-economic analysis and life cycle assessment for energy generation from sugarcane bagasse: Case study for a sugar mill in Mexico. Food and Bioproducts Processing 2019, 118, 281 -292.

AMA Style

Myriam A. Amezcua-Allieri, Elías Martínez-Hernández, Omar Anaya-Reza, Moisés Magdaleno-Molina, Luis A. Melgarejo-Flores, M. Esther Palmerín-Ruiz, Juan A. Zermeño Eguía-Lis, Andrés Rosas-Molina, Manuel Enríquez-Poy, Jorge Aburto. Techno-economic analysis and life cycle assessment for energy generation from sugarcane bagasse: Case study for a sugar mill in Mexico. Food and Bioproducts Processing. 2019; 118 ():281-292.

Chicago/Turabian Style

Myriam A. Amezcua-Allieri; Elías Martínez-Hernández; Omar Anaya-Reza; Moisés Magdaleno-Molina; Luis A. Melgarejo-Flores; M. Esther Palmerín-Ruiz; Juan A. Zermeño Eguía-Lis; Andrés Rosas-Molina; Manuel Enríquez-Poy; Jorge Aburto. 2019. "Techno-economic analysis and life cycle assessment for energy generation from sugarcane bagasse: Case study for a sugar mill in Mexico." Food and Bioproducts Processing 118, no. : 281-292.

Journal article
Published: 01 September 2019 in Materials Letters
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ACS Style

Diego Valencia; Leonardo Díaz; Luis Felipe Ramírez-Verduzco; Myriam A. Amezcua-Allieri; Jorge Aburto. MoO3-based catalysts supported on SiO2 and their performance in hydrodeoxygenation. Materials Letters 2019, 251, 226 -229.

AMA Style

Diego Valencia, Leonardo Díaz, Luis Felipe Ramírez-Verduzco, Myriam A. Amezcua-Allieri, Jorge Aburto. MoO3-based catalysts supported on SiO2 and their performance in hydrodeoxygenation. Materials Letters. 2019; 251 ():226-229.

Chicago/Turabian Style

Diego Valencia; Leonardo Díaz; Luis Felipe Ramírez-Verduzco; Myriam A. Amezcua-Allieri; Jorge Aburto. 2019. "MoO3-based catalysts supported on SiO2 and their performance in hydrodeoxygenation." Materials Letters 251, no. : 226-229.

Journal article
Published: 18 May 2019 in Bioresource Technology Reports
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This paper investigates the economic and environmental feasibility of bioethanol production from Mexican lignocellulosic biomasses including wood and grass species, bagasse and crop residues. The minimum ethanol selling price (MESP) ranged between 2.05 $/gal (wheat straw) and 2.87 $/gal (coffee pulp). Based on MESP, wheat straw, rubber wood and woody biomass were at the top of the economic ranking. The environmental ranking showed that husks, woody residues and coffee pulp are the best feedstocks. Correlations to estimate ethanol yield, net electricity production, MESP and global warming potential (GWP) based on biomass composition were developed. Correlations showed that a ratio of lignin (wet basis) to the sum of cellulose and hemicellulose (dry basis), xL, >0.22 is required, for both an energy balanced process and net GWP impact savings. The correlations facilitate the fast screening of lignocellulosic biomass options for bioethanol production in an integrated biorefinery.

ACS Style

Jhuma Sadhukhan; Elias Martinez-Hernandez; Myriam A. Amezcua-Allieri; Jorge Aburto; J. Amador Honorato S. Economic and environmental impact evaluation of various biomass feedstock for bioethanol production and correlations to lignocellulosic composition. Bioresource Technology Reports 2019, 7, 100230 .

AMA Style

Jhuma Sadhukhan, Elias Martinez-Hernandez, Myriam A. Amezcua-Allieri, Jorge Aburto, J. Amador Honorato S. Economic and environmental impact evaluation of various biomass feedstock for bioethanol production and correlations to lignocellulosic composition. Bioresource Technology Reports. 2019; 7 ():100230.

Chicago/Turabian Style

Jhuma Sadhukhan; Elias Martinez-Hernandez; Myriam A. Amezcua-Allieri; Jorge Aburto; J. Amador Honorato S. 2019. "Economic and environmental impact evaluation of various biomass feedstock for bioethanol production and correlations to lignocellulosic composition." Bioresource Technology Reports 7, no. : 100230.

Journal article
Published: 05 April 2019 in Chemical Engineering Research and Design
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The simulation and techno-economic analysis for the production of bio-jet fuel and green diesel from hydrotreatment of vegetable oil is presented in this paper. Monte Carlo simulations are carried out to find the minimum selling price that allow the processes coping with uncertainty in capital investment, feedstock and product prices. The green diesel production involved hydrodeoxygenation (HDO) of vegetable oil, producing propane as a co-product. The bio-jet fuel process involved HDO and isomerisation/hydrocracking to yield bio-jet, green diesel, naphtha, and propane. Based on a proposed reaction scheme and model, the reaction conversions for the isomerisation/hydrocracking reactor are estimated considering constraints in observed bio-jet fuel composition and freezing point. The simulation and analyses were carried out in SuperPro Designer®, linked to Excel Visual Basic for Applications to perform Montecarlo simulations and obtain robust estimations of minimum selling price (MSP). The results showed that a 75 thousand barrels/y bio-jet fuel plant can be profitable, but a MSP of 1.35 US$/L is required to lower the risk of failure due to uncertainty. In the case of the green diesel, for a 63 thousand barrels/y production plant, the required MSP is 1 US$/L. Bio-jet fuel would need incentives or subsidies while the green diesel can be competitive with current fossil diesel prices. Therefore, under current price trends, green diesel production would be a more viable investment. However, bio-jet fuel production benefits from multi-fuel production and if large plant sizes and lower feedstock prices can be obtained, the risks can be mitigated.

ACS Style

Elias Martinez-Hernandez; Luis Felipe Ramírez-Verduzco; Myriam A. Amezcua-Allieri; Jorge Aburto. Process simulation and techno-economic analysis of bio-jet fuel and green diesel production — Minimum selling prices. Chemical Engineering Research and Design 2019, 146, 60 -70.

AMA Style

Elias Martinez-Hernandez, Luis Felipe Ramírez-Verduzco, Myriam A. Amezcua-Allieri, Jorge Aburto. Process simulation and techno-economic analysis of bio-jet fuel and green diesel production — Minimum selling prices. Chemical Engineering Research and Design. 2019; 146 ():60-70.

Chicago/Turabian Style

Elias Martinez-Hernandez; Luis Felipe Ramírez-Verduzco; Myriam A. Amezcua-Allieri; Jorge Aburto. 2019. "Process simulation and techno-economic analysis of bio-jet fuel and green diesel production — Minimum selling prices." Chemical Engineering Research and Design 146, no. : 60-70.

Modeling and analysis
Published: 28 March 2019 in Biofuels, Bioproducts and Biorefining
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This work presents techno‐economic and greenhouse gas (GHG) analyses of an ethanol biorefinery integrating lignin conversion into eugenol and other phenolics. Catalytic hydrogenolysis assisted by isopropanol (IPA) is used to convert the lignin recovered after ionic liquid (IL) pretreatment, saccharification, and fermentation. This process was compared to a biorefinery using lignin for energy generation and simulated in SuperPro Designer. Spatial analysis was performed to determine biorefinery locations and capacities in a Mexican state with potential for lignocellulosic biomass, including corn stover, sorghum stubble, and Jatropha fruit shells. Relative to the base case, diverting 50% of lignin to phenolics decreased the ethanol cost of production significantly due to the high market value of the co‐products. The minimum ethanol selling price (MESP) for this case was $2.02 gal−1. The resulting cradle‐to‐gate GHG footprint of bioethanol was 21 g CO2‐eq MJ−1, a 78% reduction with respect to gasoline when system expansion is used for allocation. Using market value‐based allocation resulted in 82% GHG reduction. Analysis of scenarios showed that a biorefinery processing 3000 t day−1 biomass and diverting 80% of lignin to phenolics can potentially yield an MESP lower than $1.5 gal−1. To achieve this, research should target a reduction in IL input by 30% and IPA input by 40%, together with more energy‐efficient separation processes. The reduction in IL and IPA can be achieved by decreasing their loading rates and increasing recycling. Sensitivity analysis showed that, for biomass prices higher than $45 t−1, biorefinery capacities must exceed 5000 t d−1 biomass input. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd

ACS Style

Elias Martinez‐Hernandez; Xinguang Cui; Corinne D. Scown; Myriam A. Amezcua‐Allieri; Jorge Aburto; Blake Simmons. Techno‐economic and greenhouse gas analyses of lignin valorization to eugenol and phenolic products in integrated ethanol biorefineries. Biofuels, Bioproducts and Biorefining 2019, 13, 978 -993.

AMA Style

Elias Martinez‐Hernandez, Xinguang Cui, Corinne D. Scown, Myriam A. Amezcua‐Allieri, Jorge Aburto, Blake Simmons. Techno‐economic and greenhouse gas analyses of lignin valorization to eugenol and phenolic products in integrated ethanol biorefineries. Biofuels, Bioproducts and Biorefining. 2019; 13 (4):978-993.

Chicago/Turabian Style

Elias Martinez‐Hernandez; Xinguang Cui; Corinne D. Scown; Myriam A. Amezcua‐Allieri; Jorge Aburto; Blake Simmons. 2019. "Techno‐economic and greenhouse gas analyses of lignin valorization to eugenol and phenolic products in integrated ethanol biorefineries." Biofuels, Bioproducts and Biorefining 13, no. 4: 978-993.

Research article
Published: 25 October 2018 in ACS Omega
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We performed a computational study on the interaction of O-containing compounds coming from biomass with a catalytic surface of MoO3. The addition of H atoms on the metal oxide surface mimics different scenarios of its exposure to the ambient or protons coming from biomass. Representative compounds from fatty acids (from triacylglycerides) and aromatics (from lignin) were adsorbed on the metal oxide surfaces. We covered the complete H surface coverage, and the adsorbed molecules showed structural changes due to the interactions in turn. The driven force interactions in this process is hydrogen bonding, which reveals the complexity in biomass processing. H-bonds were fully characterized by the electron density and its Laplacian where bond critical points are present. These topological properties allow us to understand the correlation between the adsorption energies and the strength on each adsorption site. We also computed the relative Gibbs energies and harmonic oscillator model of aromaticity index of the adsorbed molecules to get more insights into their stability.

ACS Style

Diego Valencia; Isidoro García-Cruz; Luis Felipe Ramírez-Verduzco; Jorge Aburto. Adsorption of Biomass-Derived Products on MoO3: Hydrogen Bonding Interactions under the Spotlight. ACS Omega 2018, 3, 14165 -14172.

AMA Style

Diego Valencia, Isidoro García-Cruz, Luis Felipe Ramírez-Verduzco, Jorge Aburto. Adsorption of Biomass-Derived Products on MoO3: Hydrogen Bonding Interactions under the Spotlight. ACS Omega. 2018; 3 (10):14165-14172.

Chicago/Turabian Style

Diego Valencia; Isidoro García-Cruz; Luis Felipe Ramírez-Verduzco; Jorge Aburto. 2018. "Adsorption of Biomass-Derived Products on MoO3: Hydrogen Bonding Interactions under the Spotlight." ACS Omega 3, no. 10: 14165-14172.

Full paper
Published: 17 August 2018 in ChemistrySelect
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We studied the most commonly S‐containing compounds present in crude oils, the so‐called 4,6‐dialkyldibenzothiophenes. The alkyl derivatives in this study were methyl, ethyl and isopropyl. Computationally rotating the alkyl substituents, we found differences in their stability. The most stable compound (isopropyl) was transformed into the most instable by changes in its structure. Aromaticity revealed the changes taking place upon structural modifications. The most refractory compound (isopropyl derivative) reduced much more its aromatic character than the methyl derivative. The interaction of these molecules with MoS2 confirmed their instable character upon adsorption. The stability of the refractory molecules and their destabilization prior to be transformed shed light into the key step that reign deep HDS.

ACS Style

Diego Valencia; Isidoro García-Cruz; Víctor Hugo Uc; Luis Felipe Ramírez-Verduzco; Jorge Aburto. Refractory Character of 4,6-Dialkyldibenzothiophenes: Structural and Electronic Instabilities Reign Deep Hydrodesulfurization. ChemistrySelect 2018, 3, 8849 -8856.

AMA Style

Diego Valencia, Isidoro García-Cruz, Víctor Hugo Uc, Luis Felipe Ramírez-Verduzco, Jorge Aburto. Refractory Character of 4,6-Dialkyldibenzothiophenes: Structural and Electronic Instabilities Reign Deep Hydrodesulfurization. ChemistrySelect. 2018; 3 (31):8849-8856.

Chicago/Turabian Style

Diego Valencia; Isidoro García-Cruz; Víctor Hugo Uc; Luis Felipe Ramírez-Verduzco; Jorge Aburto. 2018. "Refractory Character of 4,6-Dialkyldibenzothiophenes: Structural and Electronic Instabilities Reign Deep Hydrodesulfurization." ChemistrySelect 3, no. 31: 8849-8856.

Book chapter
Published: 16 May 2018 in Sugarcane - Technology and Research
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ACS Style

Elias Martinez-Hernandez; Myriam Adela Amezcua-Allieri; Jhuma Sadhukhan; Jorge Aburto Anell. Sugarcane Bagasse Valorization Strategies for Bioethanol and Energy Production. Sugarcane - Technology and Research 2018, 1 .

AMA Style

Elias Martinez-Hernandez, Myriam Adela Amezcua-Allieri, Jhuma Sadhukhan, Jorge Aburto Anell. Sugarcane Bagasse Valorization Strategies for Bioethanol and Energy Production. Sugarcane - Technology and Research. 2018; ():1.

Chicago/Turabian Style

Elias Martinez-Hernandez; Myriam Adela Amezcua-Allieri; Jhuma Sadhukhan; Jorge Aburto Anell. 2018. "Sugarcane Bagasse Valorization Strategies for Bioethanol and Energy Production." Sugarcane - Technology and Research , no. : 1.

Journal article
Published: 08 May 2018 in Anti-Corrosion Methods and Materials
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Purpose The purpose of this research is to study different extra-heavy crude oil-in-water emulsions that can be found in practice for corrosion process of X52 steel adding 60 mg.L-1 of non-ionic surfactant and a corrosion inhibitor (CI). Electrochemical impedance spectroscopy and Tafel plots are carried out. Thus, Bode-modulus and Bode-phase angle plots are discussed. Adsorption isotherms obtained from corrosion rate (CR) values are taken into account. Design/methodology/approach Two-electrode arrangement is used to characterize the pseudo-capacitance values for X52 steel exposed to water and crude oil phases, mainly. Electrochemical evaluations for X52 steel exposed to extra-heavy crude oil-in-water emulsions are recorded in a conventional three-electrode cell to study the corrosion process as was documented in detail by Quej-Ake et al. (2015). Therefore, all electrodes are placed as close as possible to eliminate the iR-drop. Findings Pseudo-capacitance analysis shows that X52 steel immersed in oilfield produced water was more susceptible to corrosion than that immersed in ocean water solution and extra-heavy crude oil phase. After being analyzed, the X52 steel surface coverage and adsorption process for surfactant and CI could be concluded that surfactant could protect the metal surface. In a coalescence extra-heavy crude oil-in-water emulsion, the water medium generated a new solution that was more corrosive than the original water phase. Wash crude oil process was provoked in emulsion systems to sweep up the salts, mainly. Thus, corrosive species that can be recovered inside extra-heavy crude oil may appear, and in turn a new more corrosive solution could be obtained. Taking into account the straight line obtained in Bode-modulus plot for X52 exposed to extra-heavy crude oil, it is possible to point out that the negative value of the slope or R2 can be related to a coefficient (Jorcin et al., 2006). It is important to mention that electrochemical responses for X52 steel exposed to extra-heavy crude oil-in-water under coalescence emulsions revealed that corrosion and diffusion processes exist. Therefore, a possible good inhibitor is surfactant in emulsion systems. Originality/value CR and anodic and cathodic slopes suggest that the surfactant acted as mixed CI. Of these, susceptible anodic (MnS and perlite or cementite) and cathodic (ferrite) sites on steel surface could be affected, due to which physicochemical adsorption could happen by using electrochemical parameters analysis. Thus, no stable emulsions should be taken into account for extra-heavy crude oil transportation, because corrosion problems in atmospheric distillation process of the crude oil due to stable emulsion cannot be easily separated. In this manner, coalescent emulsions are more adequate for transporting extra-heavy crude oil because low energy to separate the water media is required.

ACS Style

Luis Manuel Quej-Ake; A. Contreras; Jorge Aburto. The effect of non-ionic surfactant on the internal corrosion for X52 steel in extra-heavy crude oil-in-water emulsions. Anti-Corrosion Methods and Materials 2018, 65, 234 -248.

AMA Style

Luis Manuel Quej-Ake, A. Contreras, Jorge Aburto. The effect of non-ionic surfactant on the internal corrosion for X52 steel in extra-heavy crude oil-in-water emulsions. Anti-Corrosion Methods and Materials. 2018; 65 (3):234-248.

Chicago/Turabian Style

Luis Manuel Quej-Ake; A. Contreras; Jorge Aburto. 2018. "The effect of non-ionic surfactant on the internal corrosion for X52 steel in extra-heavy crude oil-in-water emulsions." Anti-Corrosion Methods and Materials 65, no. 3: 234-248.

Book chapter
Published: 21 March 2018 in Lignin - Trends and Applications
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Conversion of Lignin to Heat and Power, Chemicals or Fuels into the Transition Energy Strategy | IntechOpen, Published on: 2018-03-21. Authors: Myriam Adela Amezcua-Allieri and Jorge Aburto

ACS Style

Myriam Adela Amezcua-Allieri; Jorge Aburto. Conversion of Lignin to Heat and Power, Chemicals or Fuels into the Transition Energy Strategy. Lignin - Trends and Applications 2018, 1 .

AMA Style

Myriam Adela Amezcua-Allieri, Jorge Aburto. Conversion of Lignin to Heat and Power, Chemicals or Fuels into the Transition Energy Strategy. Lignin - Trends and Applications. 2018; ():1.

Chicago/Turabian Style

Myriam Adela Amezcua-Allieri; Jorge Aburto. 2018. "Conversion of Lignin to Heat and Power, Chemicals or Fuels into the Transition Energy Strategy." Lignin - Trends and Applications , no. : 1.

Journal article
Published: 27 February 2018 in Biomass and Bioenergy
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Triacylglycerides (TAGs) and their related fatty acids (FAs) are abundant in biomass (vegetal oils and animal fats). Here, we studied by theoretical calculations the most representative FAs and their chemical reactions under hydrogen atmosphere to produce O-free hydrocarbon molecules. In general, the ΔHr0 and ΔGr0 do not vary due to the size of the molecule. Selected TAGs were also studied by theoretical calculations. Similar as FAs, the overall reaction energies do not depend on the size of the molecules. Possible reaction networks for the hydrogenation and hydrogenolysis processes are proposed for such biomolecules under hydrogen environments. We also studied the profiles of the enthalpy and Gibbs energy of reaction for TAGs at typical operating conditions of temperature or pressure. This self-consistent study is willing to contribute for a better understanding of the reactions of the biomass that take place under hydrogen atmosphere.

ACS Style

Diego Valencia; Isidoro García-Cruz; Víctor Hugo Uc; Luis Felipe Ramírez-Verduzco; Myriam Amezcua Allieri; Jorge Aburto. Unravelling the chemical reactions of fatty acids and triacylglycerides under hydrodeoxygenation conditions based on a comprehensive thermodynamic analysis. Biomass and Bioenergy 2018, 112, 37 -44.

AMA Style

Diego Valencia, Isidoro García-Cruz, Víctor Hugo Uc, Luis Felipe Ramírez-Verduzco, Myriam Amezcua Allieri, Jorge Aburto. Unravelling the chemical reactions of fatty acids and triacylglycerides under hydrodeoxygenation conditions based on a comprehensive thermodynamic analysis. Biomass and Bioenergy. 2018; 112 ():37-44.

Chicago/Turabian Style

Diego Valencia; Isidoro García-Cruz; Víctor Hugo Uc; Luis Felipe Ramírez-Verduzco; Myriam Amezcua Allieri; Jorge Aburto. 2018. "Unravelling the chemical reactions of fatty acids and triacylglycerides under hydrodeoxygenation conditions based on a comprehensive thermodynamic analysis." Biomass and Bioenergy 112, no. : 37-44.

Journal article
Published: 01 November 2017 in Journal of Analytical and Applied Pyrolysis
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ACS Style

A. Galano; J. Aburto; J. Sadhukhan; E. Torres-García. A combined theoretical-experimental investigation on the mechanism of lignin pyrolysis: Role of heating rates and residence times. Journal of Analytical and Applied Pyrolysis 2017, 128, 208 -216.

AMA Style

A. Galano, J. Aburto, J. Sadhukhan, E. Torres-García. A combined theoretical-experimental investigation on the mechanism of lignin pyrolysis: Role of heating rates and residence times. Journal of Analytical and Applied Pyrolysis. 2017; 128 ():208-216.

Chicago/Turabian Style

A. Galano; J. Aburto; J. Sadhukhan; E. Torres-García. 2017. "A combined theoretical-experimental investigation on the mechanism of lignin pyrolysis: Role of heating rates and residence times." Journal of Analytical and Applied Pyrolysis 128, no. : 208-216.

Research article
Published: 07 June 2017 in Journal of Chemistry
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The objective of this study was to evaluate the chemical and enzymatic hydrolysis using a factorial experimental design (23) in order to obtain fermentable sugars from cellulose-based material (CBM) usually used as pet litter. In assessing chemical hydrolysis, we studied the effect of temperature, in addition to H2SO4 concentration and reaction time, on the production of total sugars, reducing sugars, soluble lignin, carbohydrate profile, furfural (F), and hydroxymethyl furfural (HMF). We performed a response surface analysis and found that, at 100°C, 1% acid concentration, and 60 min reaction time, the yields of 0.0033 g reducing sugar/g biomass and 0.0852 g total sugars/g biomass were obtained. Under the above conditions, F is not generated, while HMF is generated in such a concentration that does not inhibit fermentation. We pretreated the CBM with H2SO4, NaOH, CaO, or ozonolysis, in order to evaluate the effectiveness of the enzymatic hydrolysis from the pretreated biomass, using an enzymatic cocktail. Results showed that CBM with acid was susceptible to enzymatic attack, obtaining a concentration of 0.1570 g reducing sugars/g biomass and 0.3798 g total sugars/g biomass. We concluded that acid pretreatment was the best to obtain fermentable sugars from CBM.

ACS Style

Myriam A. Amezcua-Allieri; Teresa Sánchez Durán; Jorge Aburto. Study of Chemical and Enzymatic Hydrolysis of Cellulosic Material to Obtain Fermentable Sugars. Journal of Chemistry 2017, 2017, 1 -9.

AMA Style

Myriam A. Amezcua-Allieri, Teresa Sánchez Durán, Jorge Aburto. Study of Chemical and Enzymatic Hydrolysis of Cellulosic Material to Obtain Fermentable Sugars. Journal of Chemistry. 2017; 2017 ():1-9.

Chicago/Turabian Style

Myriam A. Amezcua-Allieri; Teresa Sánchez Durán; Jorge Aburto. 2017. "Study of Chemical and Enzymatic Hydrolysis of Cellulosic Material to Obtain Fermentable Sugars." Journal of Chemistry 2017, no. : 1-9.