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Dr. Ranjeet Kumar Mishra
Department of Plant Agriculture, University Of Guelph, Guelph, ON N1G 2W1, Canada

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0 Pyrolysis
0 catalysts
0 Biofuel
0 Hydrothermal Liquefaction

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Journal article
Published: 07 April 2021 in Materials Science for Energy Technologies
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A substantial amount of renewable feedstocks study has been dedicated to bio-fuel and biochemical generation, preferably thermochemical conversion processes such as pyrolysis. In this work, the physicochemical study, pyrolysis behaviouer and kinetic factors of Cascabela thevetia (SK) Delonix regia (SG) and Manilkara zapota (CK) seeds were tested in the thermogravimetric analysis (TGA) at three rates of heating (10 - 50 oC min-1) to estimate its bioenergy potential. Further, the kinetic constraints were investigated by using model-free approaches, namely Kissinger-Akahira Sunose (KAS), Friedman model (FM), Cots-Redfern model (CR), Distributed Activation Energy Model (DAEM), Ozawa-Flynn-Wall (OFW), and Vyazovkin method (VZ). Characterization study of applied biomass showed attendance of extensive amount of volatile matter (73.15-75.24 %), carbon content (50.12-55.02 %), heating value (20.52-25.12 MJ kg-1), and lower ash content (2.20-3.15 %) and nitrogen content (3.01-5.10 %). Further, DSC inspection of applied biomass recognized that biomass decayed under the endothermic process during the heating process. The average activation energy for CK, SG, and SK was originated to be 157.81, 150.90, 166.28 kJ mol-1 for KAS, 164.55, 166.59, 177.05 kJ mol-1 for OFW, 168.47, 166.05, 185.22 kJ mol-1 for FM, 194.87, 157.87, 199.74 kJ mol-1 for DEAM and 168.75, 158.86, 102.28 kJ mol-1 for VZ respectively. Additionally, CR model yields 49.99, 35, 38.71 kJ mol-1 at n=1 and 34.79, 29.18, 27.7 kJ mol-1 at n ≠1 for CK, SG, and SK, respectively. Finally, the variance between activation energy and enthalpy of reaction showed promising product formation. In contrast, Gibbs free energy and higher heating value (HHV) of biomass exhibited its potential for energy and fuel production.

ACS Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. Kinetic analysis and pyrolysis behavior of low-value waste lignocellulosic biomass for its bioenergy potential using thermogravimetric analyzer. Materials Science for Energy Technologies 2021, 4, 136 -147.

AMA Style

Ranjeet Kumar Mishra, Kaustubha Mohanty. Kinetic analysis and pyrolysis behavior of low-value waste lignocellulosic biomass for its bioenergy potential using thermogravimetric analyzer. Materials Science for Energy Technologies. 2021; 4 ():136-147.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. 2021. "Kinetic analysis and pyrolysis behavior of low-value waste lignocellulosic biomass for its bioenergy potential using thermogravimetric analyzer." Materials Science for Energy Technologies 4, no. : 136-147.

Original paper
Published: 02 February 2021 in Journal of Cluster Science
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Green synthesis of iron oxide nanoparticles (Fe NPs) was prepared using Delonix regia flower extract, and their Photo Fenton like oxidation was performed. The synthesized Fe–NPs were characterized using XRD, FESEM, FETEM, FT-IR, and VSM confirmed the formation both of Magnetite (Fe3O4) and Hematite (α-Fe2O3) nanoparticles. The prepared catalyst was used for the photo Fenton like degradation of Methylene blue (MB) and Congo red (CR) dyes. The optimization of various operational parameters, such as the influence of concentration of catalyst, H2O2, initial dye and initial pH was executed. The results showed that under optimum conditions, about 99% decolorization of both MB and CR dye was accomplished within 10 min. The catalyst was removed by an external magnet, and reuse study showed that there is no notable decrease in the efficacy of the catalyst was observed up to five cycles. The results are exemplifying that the biogenic prepared Fe NPs having high potential for the photo-assisted degradation of both MB and CR in the existence of H2O2.

ACS Style

Arpan Chakraborty; Saran Sarangapany; Umesh Mishra; Kaustubha Mohanty. Green Synthesized Magnetically Separable Iron Oxide Nanoparticles for Efficient Heterogeneous Photo-Fenton Degradation of Dye Pollutants. Journal of Cluster Science 2021, 1 -11.

AMA Style

Arpan Chakraborty, Saran Sarangapany, Umesh Mishra, Kaustubha Mohanty. Green Synthesized Magnetically Separable Iron Oxide Nanoparticles for Efficient Heterogeneous Photo-Fenton Degradation of Dye Pollutants. Journal of Cluster Science. 2021; ():1-11.

Chicago/Turabian Style

Arpan Chakraborty; Saran Sarangapany; Umesh Mishra; Kaustubha Mohanty. 2021. "Green Synthesized Magnetically Separable Iron Oxide Nanoparticles for Efficient Heterogeneous Photo-Fenton Degradation of Dye Pollutants." Journal of Cluster Science , no. : 1-11.

Journal article
Published: 07 January 2021 in LWT
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The viability of the FO process for concentration of sugarcane juice by using a commercially available aquaporin embedded hollow fibre membrane module (HFFO) (active area, 2.3 m2) is presented. NaCl is used as a draw solution (DS), and the selection of suitable DS concentration, flow conditions and flow configuration are observed to be vital aspects to minimize the reverse solute flux (RSF) and energy consumption. Further, the one dimensional mathematical model for the batch and continuous FO process using HF module is developed and validated with experimental data within the error limit of 5% for water flux and RSF. Based on the flowsheet modelling, the method for establishing the optimized FO process is presented. The optimized FO flowsheet presented in this study can concentrate the sugarcane juice from 150 g L−1 to 531 g L−1 with energy consumption of 92.14 WL-1 of permeate and specific RSF = 1.57 g L−1. Further, to commercialize FO process for sugarcane juice concentration application, the selection of suitable food-grade draw solute that can provide high osmotic pressure and low RSF is a very important aspect.

ACS Style

Aanisha Akhtar; Mandeep Singh; Senthilmurugan Subbiah; Kaustubha Mohanty. Modelling, experimental validation and process design of forward osmosis process for sugarcane juice concentration. LWT 2021, 141, 110852 .

AMA Style

Aanisha Akhtar, Mandeep Singh, Senthilmurugan Subbiah, Kaustubha Mohanty. Modelling, experimental validation and process design of forward osmosis process for sugarcane juice concentration. LWT. 2021; 141 ():110852.

Chicago/Turabian Style

Aanisha Akhtar; Mandeep Singh; Senthilmurugan Subbiah; Kaustubha Mohanty. 2021. "Modelling, experimental validation and process design of forward osmosis process for sugarcane juice concentration." LWT 141, no. : 110852.

Journal article
Published: 19 November 2020 in Carbon Resources Conversion
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The present study addresses the influence of blending of waste plastics (i.e., polystyrene, PS and waste nitrile gloves, WNG) with mahua seeds (MH) for co-pyrolytic liquid yield and its fuel properties. Various blends of waste plastics were mixed with biomass (10, 20 and 30 wt.%) and pyrolyzed in a semi-batch reactor at an optimized environment (550 oC temperature, 80 oC min-1 heating rate, and 100 mL min-1 N2 flow rate). Physicochemical results displayed its ability to yield renewable fuel and valuable chemicals. Co-pyrolysis outcomes showed that blending of waste plastics at 20 wt.%, yielded maximum liquid (44.18±1.2 wt.% and 45.89±1.4 wt. % for MH+WNG and MH+PS respectively) which was higher than thermal pyrolysis of individual MH (39.26±1.2 wt.%). Further, characterization results revealed a substantial reduction in viscosity, oxygen content, moisture, and a positive increment in gross heating value, carbon content and acidity. FTIR examination exposed the attendance of mainly aromatics, acids, phenols, water, esters and ethers. Further, NMR analysis of pyrolytic oil confirmed an increase in aromaticity by blending of waste plastics (20 wt.%) while there was a reduction in paraffinic compounds. GC-MS investigation revealed substantial improvement in hydrocarbons and minimization in the oxygen-rich products by blending of waste plastics at 20 wt.%.

ACS Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. Co-pyrolysis of waste biomass and waste plastics (polystyrene and waste nitrile gloves) into renewable fuel and value-added chemicals. Carbon Resources Conversion 2020, 3, 145 -155.

AMA Style

Ranjeet Kumar Mishra, Kaustubha Mohanty. Co-pyrolysis of waste biomass and waste plastics (polystyrene and waste nitrile gloves) into renewable fuel and value-added chemicals. Carbon Resources Conversion. 2020; 3 ():145-155.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. 2020. "Co-pyrolysis of waste biomass and waste plastics (polystyrene and waste nitrile gloves) into renewable fuel and value-added chemicals." Carbon Resources Conversion 3, no. : 145-155.

Journal article
Published: 12 November 2020 in Environmental Technology & Innovation
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Microplastics (MPs) present in edible salts may create a potential health hazard for humans. The occurrence of MPs in edible salts and their extraction procedure is limited. In this work, we have developed a facile and cost-effective protocol for the extraction and separation of MPs from the edible salt sample. The visual assessment was performed to identify the shape, size, number, and color of microplastic particles using light and fluorescence microscopy. The composition of the sample was analyzed by micro-Raman spectroscopy. A wide range of MPs were found: 1400 ∼1900 particles/kg in refined sea salt, 1900 ∼2300/kg in unrefined sea salts, and 200 ∼400/kg in rock salts. A relatively high number of MPs were found in sea salts rather than rock salts. Sheet type MPs with size 1 ∼ 4μm were observed in rock salts. The most common MPs were polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), nylon, and polystyrene (PS). Further, MPs were effectively removed from synthetic seawater with the help of a microfiltration membrane, which has the capability of arresting the transfer of microplastic particles into edible salts. Therefore the use of MF/UF pretreated brine from seawater desalination plant can be explored for MPs sea salt production at low cost.

ACS Style

Naveenkumar Ashok Yaranal; Senthilmurugan Subbiah; Kaustubha Mohanty. Identification, extraction of microplastics from edible salts and its removal from contaminated seawater. Environmental Technology & Innovation 2020, 21, 101253 .

AMA Style

Naveenkumar Ashok Yaranal, Senthilmurugan Subbiah, Kaustubha Mohanty. Identification, extraction of microplastics from edible salts and its removal from contaminated seawater. Environmental Technology & Innovation. 2020; 21 ():101253.

Chicago/Turabian Style

Naveenkumar Ashok Yaranal; Senthilmurugan Subbiah; Kaustubha Mohanty. 2020. "Identification, extraction of microplastics from edible salts and its removal from contaminated seawater." Environmental Technology & Innovation 21, no. : 101253.

Chapter
Published: 03 November 2020 in Algae
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Algal extracts contain biologically active components that are used in cosmetic industry. These compounds are often employed in cosmetic industry as antioxidants, thickeners, water binders, emollients, etc. These extracts are found in skin and face care formulations as anti-aging cream, masks, lotions, etc., ultraviolet (UV) protection formulations as sunscreens, and hair care products. Several studies have been reported where bioactive algal compounds have exhibited their potential to be skin shielding agent, which includes safeguard from harmful UV rays and wrinkles.

ACS Style

Barasa Malakar; Kaustubha Mohanty. The Budding Potential of Algae in Cosmetics. Algae 2020, 181 -199.

AMA Style

Barasa Malakar, Kaustubha Mohanty. The Budding Potential of Algae in Cosmetics. Algae. 2020; ():181-199.

Chicago/Turabian Style

Barasa Malakar; Kaustubha Mohanty. 2020. "The Budding Potential of Algae in Cosmetics." Algae , no. : 181-199.

Journal article
Published: 19 September 2020 in Journal of the Energy Institute
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This work addresses the effect of operating parameters and catalysts on pyrolytic products yield and nature of pyrolytic liquid generated from Areca catechu (AN) sawdust. Physicochemical characteristics of AN showcased its bio-energy potential as a substitute for fossil fuels. Further, catalytic pyrolysis yielded 36.75 wt % and 35.70 wt% pyrolytic liquid for ZSM-5 and MgO respectively at 8:1 B/C, which is greater than thermal pyrolytic yield 33.75 wt%. The characterization of pyrolytic oil demonstrated that the adoption of catalysts upgrades the properties of pyrolytic oil. FTIR examination of pyrolytic oil summarized the attendance of aromatics, acid, moisture, protein impurities etc., while GC-MS results recognized that the utilization of catalysts brings down the yield of oxygen-rich products and acids while showing an escalation in the aromatic yield. Further, ash content study of pyrolytic oil confirmed the greater reduction in ash content in catalytic pyrolytic oil than thermal pyrolytic oil due to utilization of catalysts. Results of biochar characterization marked out a higher carbon content (73.14%), heating value (29.11 MJ kg−1), zeta potential (−31.04 mV), fixed carbon (62.12%) and lower BET surface area (5.49 m2 g−1). Furthermore, the XRF study of ash content established the attendance of various inorganic content in ash which worked as catalysts at the time of pyrolysis.

ACS Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. Fuel properties and compositional analysis of Areca catechu sawdust over MgO and ZSM-5 catalysts. Journal of the Energy Institute 2020, 94, 252 -262.

AMA Style

Ranjeet Kumar Mishra, Kaustubha Mohanty. Fuel properties and compositional analysis of Areca catechu sawdust over MgO and ZSM-5 catalysts. Journal of the Energy Institute. 2020; 94 ():252-262.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. 2020. "Fuel properties and compositional analysis of Areca catechu sawdust over MgO and ZSM-5 catalysts." Journal of the Energy Institute 94, no. : 252-262.

Journal article
Published: 05 August 2020 in Sustainable Energy Technologies and Assessments
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Decentralized energy generation at community level is the need of the hour for meeting the increasing load demands. A pilot-scale 1 kW photovoltaic (PV) system was installed at Auniati Satra near IIT Guwahati for studying the effects of its operating parameters at different loading conditions corresponding to the environmental conditions prevalent in Guwahati, Assam (India). The PV system was subjected to constant electrical load both in standalone mode and grid-connected mode during the daytime at eight different loading conditions viz. 20%, 30%, 40%, 45%, 50%, 60%, 70% and 80% and half-hourly data of different parameters like solar insolation, PV energy, PV charge, temperature, and battery capacity were analysed. Optimum loading condition in standalone mode was found to be at 45% − 50% load under normal solar insolation without much burden on the battery bank and can be extended to a maximum load of 70% during the daytime at high solar insolation. In grid-connected mode, load application upto 45% was economically beneficial as less power was utilized from local grid. Though it can be subjected to almost its full rated capacity with input from the ac supply.

ACS Style

Sachankar Buragohain; Kaustubha Mohanty; Pinakeswar Mahanta. Experimental investigations of a 1 kW solar photovoltaic plant in standalone and grid mode at different loading conditions. Sustainable Energy Technologies and Assessments 2020, 41, 100796 .

AMA Style

Sachankar Buragohain, Kaustubha Mohanty, Pinakeswar Mahanta. Experimental investigations of a 1 kW solar photovoltaic plant in standalone and grid mode at different loading conditions. Sustainable Energy Technologies and Assessments. 2020; 41 ():100796.

Chicago/Turabian Style

Sachankar Buragohain; Kaustubha Mohanty; Pinakeswar Mahanta. 2020. "Experimental investigations of a 1 kW solar photovoltaic plant in standalone and grid mode at different loading conditions." Sustainable Energy Technologies and Assessments 41, no. : 100796.

Journal article
Published: 06 June 2020 in Materials Science for Energy Technologies
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The present study explored the influence of operating constraints and catalysts on the products yield and nature of organic pyrolytic oil. The pyrolysis of Madhuca indica seeds (MH) was executed in a semi-batch reactor at optimised environments (500 oC temperature, 80 oC min-1 heating rate and 100 mL min-1 sweep gas). Thermal pyrolysis of MH yielded 56.60 wt.% pyrolytic liquid; while catalytic pyrolysis yielded 54.10 wt.%, 55.10 wt.%, 54.21 wt.%, and 53.20 wt.% pyrolytic liquid for K2CO3, zeolite, TiO2, and MgO respectively. The characterisation of pyrolytic oil reiterated the introduction of catalysts extensively modified the properties of pyrolytic oil by reducing viscosity, oxygen content, ash content, and increasing the gross heating value. FTIR study of pyrolytic oil reprised the existence of phenols, water, ester, acids, and aromatics impurities. GC-MS results confirmed introduction of catalysts significantly augmented hydrocarbons volumes and curtailed the acid and oxygenated products. Further, the characterization results of Madhuca indica seeds biochar (MHC) confirmed its potential for diverse applications in the domestic and industrial sectors.

ACS Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. Effect of low-cost catalysts on yield and properties of fuel from waste biomass for hydrocarbon-rich oil production. Materials Science for Energy Technologies 2020, 3, 526 -535.

AMA Style

Ranjeet Kumar Mishra, Kaustubha Mohanty. Effect of low-cost catalysts on yield and properties of fuel from waste biomass for hydrocarbon-rich oil production. Materials Science for Energy Technologies. 2020; 3 ():526-535.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. 2020. "Effect of low-cost catalysts on yield and properties of fuel from waste biomass for hydrocarbon-rich oil production." Materials Science for Energy Technologies 3, no. : 526-535.

Original paper
Published: 26 May 2020 in Journal of Cluster Science
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A simple and easy green synthesis of silver nanoparticles (Ag NPs) was prepared using Sapindus emarginatus stem bark extract and anchored over graphitic carbon nitride (g-C3N4) surface. The synthesized materials characterized by UV–Visible, XRD, FESEM, FETEM, FT-IR and Raman spectroscopy ensured the development of Ag NPs anchored over the g-C3N4 surface. The prepared catalyst was utilized for Methylene Blue (MB) dye degradation through visible light photocatalysis. The optimization of operational parameters, like the effect of catalyst dosage, H2O2 concentration and slurry pH, was performed. The results exhibited that compared to pristine g-C3N4, photocatalytic efficacy was enhanced two-fold in [email protected] Also, the prepared [email protected] showed a faster catalytic MB dye reduction (25 s) in the presence of NaBH4. The catalyst was recovered from the reaction solution by centrifugation and reused for five consecutive cycles. The results showed that there was no significant loss in the efficiency of the catalyst. These results confirmed that the green synthesized [email protected] is likely advantageous for organic pollutants degradation.

ACS Style

Saran Sarangapany; Kaustubha Mohanty. Facile Green Synthesis of [email protected] for Enhanced Photocatalytic and Catalytic Degradation of Organic Pollutant. Journal of Cluster Science 2020, 32, 585 -592.

AMA Style

Saran Sarangapany, Kaustubha Mohanty. Facile Green Synthesis of [email protected] for Enhanced Photocatalytic and Catalytic Degradation of Organic Pollutant. Journal of Cluster Science. 2020; 32 (3):585-592.

Chicago/Turabian Style

Saran Sarangapany; Kaustubha Mohanty. 2020. "Facile Green Synthesis of [email protected] for Enhanced Photocatalytic and Catalytic Degradation of Organic Pollutant." Journal of Cluster Science 32, no. 3: 585-592.

Journal article
Published: 11 May 2020 in Journal of the Energy Institute
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The present study deals with the optimization of process parameters and thermocatalytic pyrolysis of Cascabela thevetia (CT) seeds in a semi-batch cylindrical-shaped reactor. Response surface methodology (RSM) was employed for the optimization of process variables, while commercial catalysts CaO and Al2O3 were used for catalytic pyrolysis. From results, it was concluded that 525 °C temperature, 75 °C min−1 heating rate, and 75 mL min−1 flow of nitrogen yielded maximum pyrolytic liquid (45.26 wt%) while with the attendance of catalysts at 20 wt% increased the yield of pyrolytic liquid (49.12 wt% and 46.87 wt% for CaO and Al2O3 respectively). Optimization outcomes displayed that linear and quadratic terms of utilized factors were more noteworthy while interaction effects between the factors were not significant. Further, characterization of pyrolytic oil established that utilization of catalysts expressively enhanced its properties by reducing viscosity and boosted the calorific value. FTIR examination of pyrolytic oil showed that the attendance of phenols, ethers, alcohols, ketones, alkanes, acids, etc., while 1H NMR results supported the FTIR results. GC-MS analysis showed a substantial reduction of phenols and oxygen-rich products and boost the development of alcohol and aldehydes in pyrolytic oil with the introduction of catalysts. These parameters indicate improved properties of pyrolytic oil, which intensified its bioenergy capabilities.

ACS Style

Ranjeet Kumar Mishra; Abhishek Muraraka; Kaustubha Mohanty. Optimization of process parameters and catalytic pyrolysis of Cascabela thevetia seeds over low-cost catalysts towards renewable fuel production. Journal of the Energy Institute 2020, 93, 2033 -2043.

AMA Style

Ranjeet Kumar Mishra, Abhishek Muraraka, Kaustubha Mohanty. Optimization of process parameters and catalytic pyrolysis of Cascabela thevetia seeds over low-cost catalysts towards renewable fuel production. Journal of the Energy Institute. 2020; 93 (5):2033-2043.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Abhishek Muraraka; Kaustubha Mohanty. 2020. "Optimization of process parameters and catalytic pyrolysis of Cascabela thevetia seeds over low-cost catalysts towards renewable fuel production." Journal of the Energy Institute 93, no. 5: 2033-2043.

Journal article
Published: 05 May 2020 in Bioresource Technology
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The present study addressed the kinetics characteristics and pyrolysis behaviour of waste biomass Azadirachta indica (NM) and Phyllanthus emblica kernel (AM) in a thermogravimetric analyzer. Six model-free techniques such as Kissinger-Akahira-Sunose, Distributed Activation Energy Model, Friedman, Coats-Redfern, Ozawa-Flynn-Wall, Vyazovkin and Criado method were employed to evaluate the kinetic parameters at five varying heating rates (10–50 °C min−1). The physicochemical inspection directed that both the biomass had excellent prospects to produce energy and finest chemicals. FTIR study pointed strong evidence of moisture, protein, acid, and aromatics. The average apparent activation energy was found to be 176.66, 193.67, 196.06, 177.32 and 204.23 kJ mol−1 for NM and 184.77, 195.10, 189.95, 186.46, 184.57 kJ mol−1 for AM for KAS, OFW, FM, DAEM and VZ respectively. Further, master plot and thermodynamic study of AM and NM revealed that pyrolysis went through various reaction mechanisms at the time of pyrolysis.

ACS Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. Kinetic analysis and pyrolysis behaviour of waste biomass towards its bioenergy potential. Bioresource Technology 2020, 311, 123480 .

AMA Style

Ranjeet Kumar Mishra, Kaustubha Mohanty. Kinetic analysis and pyrolysis behaviour of waste biomass towards its bioenergy potential. Bioresource Technology. 2020; 311 ():123480.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. 2020. "Kinetic analysis and pyrolysis behaviour of waste biomass towards its bioenergy potential." Bioresource Technology 311, no. : 123480.

Journal article
Published: 30 October 2019 in Journal of the Energy Institute
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The present study addresses pyrolysis behaviour and potential of Samanea saman seeds (SS) towards its bioenergy potential using thermogravimetric analyzer and in a cylindrical pyrolyzer (semi-batch reactor). Pyrolysis kinetic behaviour of biomass was carried out using Kissinger, Distributed Activation Energy Model (DAEM) and Miura-Maki-Integral method (MMI) while thermal pyrolysis was carried out in a cylindrical shaped semi-batch reactor. Kinetic results confirmed that the average activation energy was found 118.24 kJ mol−1, 168.70 kJ mol−1, and 97.87 kJ mol−1 for Kissinger, DAEM, and MMI model respectively. Further, thermal pyrolysis of SS biomass yielded 44.20 wt% yield of pyrolytic liquid (31.20 wt% pyrolytic oil/organic oil and 13 wt% aqueous fraction). Characterization results of pyrolytic oil showed the presence of higher viscosity (86.01 cSt), higher oxygen content (33.11%), and lower ash content (0.46 wt%) and gross heating value. FTIR analysis confirmed mainly the presence of aromatics, acid, alkene, water, and protein impurities. Gas Chromatography (GC) results declared, an increase in hydrocarbon and hydrogen gas with an increase in temperature while reduced the generation of CO and CO2. Further, GC-MS analysis of pyrolytic oil revealed the presence of higher acids (19.46%), phenols (11.01%) ethers (11.12%) and ester (7.33%) which is a potent source of oxygenated compounds. Characterization results of biochar showed the presence of higher gross heating value (23.14 MJ kg), carbon content (62.66%), volatile matter (34.15%) and lower moisture (5.14%) and BET surface area (8.20 m2 g−1). Combining these results, it can be suggested that SS biomass has the potential to produce renewable fuel and chemicals, while biochar can be used for various applications.

ACS Style

Ranjeet Kumar Mishra; Vineet Kumar; Kaustubha Mohanty. Pyrolysis kinetics behaviour and thermal pyrolysis of Samanea saman seeds towards the production of renewable fuel. Journal of the Energy Institute 2019, 93, 1148 -1162.

AMA Style

Ranjeet Kumar Mishra, Vineet Kumar, Kaustubha Mohanty. Pyrolysis kinetics behaviour and thermal pyrolysis of Samanea saman seeds towards the production of renewable fuel. Journal of the Energy Institute. 2019; 93 (3):1148-1162.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Vineet Kumar; Kaustubha Mohanty. 2019. "Pyrolysis kinetics behaviour and thermal pyrolysis of Samanea saman seeds towards the production of renewable fuel." Journal of the Energy Institute 93, no. 3: 1148-1162.

Review
Published: 29 October 2019 in Algal Research
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Microalgae are considered as a potential and sustainable feedstock for the production of biofuels, fine chemicals, nutraceuticals, and cosmetics. This is accredited to their high lipid and carbohydrate content, fast growth and rapid CO2 sequestration ability. However, large volumes of feedstock are required to extract and process biochemicals from microalgal biomass due to the small biomass to liquid ratio. This produces substantial challenges in attaining a sustainable energy balance in microalgae-based products process operations. Additionally, the small size of microalgal cells along with their negatively charged cell surface and cell density similar to the growth medium produces challenges in microalgae harvesting. The high cost associated with microalgae harvesting is a major bottleneck for commercialization of algae-based industrial products. Hence, microalgae harvesting is recognized as an area that needs to be explored and developed. This article aims to collate and present an overview of current harvesting strategies such as physical, chemical, biological, electrical and magnetic methods along with their future prospects. This review also highlights the evolution of microalgal harvesting and elucidates the fundamental phenomena of each technology in relation to key physical parameters such as morphology, size, density and surface charge. Besides throwing widespread light on various harvesting methods, this review article has also presented their advantages and disadvantages. Life cycle assessment (LCA) and technoeconomic analysis (TEA) was reviewed to assess the feasibility of various harvesting system for commercial application based on the environmental and technoeconomic impacts. Hence, the vital proposals provided in this review article would undeniably pave the way for choosing the appropriate harvesting strategy.

ACS Style

Madonna Roy; Kaustubha Mohanty. A comprehensive review on microalgal harvesting strategies: Current status and future prospects. Algal Research 2019, 44, 101683 .

AMA Style

Madonna Roy, Kaustubha Mohanty. A comprehensive review on microalgal harvesting strategies: Current status and future prospects. Algal Research. 2019; 44 ():101683.

Chicago/Turabian Style

Madonna Roy; Kaustubha Mohanty. 2019. "A comprehensive review on microalgal harvesting strategies: Current status and future prospects." Algal Research 44, no. : 101683.

Journal article
Published: 09 October 2019 in Fuel
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To explore the bioenergy potential, kinetic and pyrolysis behavior of waste dahlia flowers (DF), model-free methods and Py-GC–MS were used. Kinetic characteristics of DF biomass were estimated by adopting four model-free methods, Kissinger-Akahira-Sunose (KAS), Ozawa-Flynn-Wall (OFW), Friedman, and Distributed Activation Energy (DAEM). Further, functional groups, the presence of mineral matter in DF biomass, and mineral compounds present in the inorganic residue were analyzed using FTIR, EDX, and XRF. Physicochemical analysis results confirmed its bioenergy potential for conversion into renewable fuel and valuable chemicals. The kinetic results of DF biomass showed that activation energy varied with conversion value, and the thermodynamic analysis indicated multiple step pyrolysis. FTIR analysis confirmed the presence of hemicellulose, cellulose, and lignin in biomass. EDX and XRF analysis also revealed the presence of various useful mineral matter, which had a positive effect during pyrolysis. Py-GC–MS results confirmed that at a lower temperature (500 °C), the formation of ester, nitrogen containing compounds and acid were higher, while at higher temperatures (550 °C and 600 °C), the formation of oxygenated compounds were reduced and the production of hydrocarbons and alcohols increased.

ACS Style

Ranjeet Kumar Mishra; Kaustubha Mohanty; Xianhua Wang. Pyrolysis kinetic behavior and Py-GC–MS analysis of waste dahlia flowers into renewable fuel and value-added chemicals. Fuel 2019, 260, 116338 .

AMA Style

Ranjeet Kumar Mishra, Kaustubha Mohanty, Xianhua Wang. Pyrolysis kinetic behavior and Py-GC–MS analysis of waste dahlia flowers into renewable fuel and value-added chemicals. Fuel. 2019; 260 ():116338.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Kaustubha Mohanty; Xianhua Wang. 2019. "Pyrolysis kinetic behavior and Py-GC–MS analysis of waste dahlia flowers into renewable fuel and value-added chemicals." Fuel 260, no. : 116338.

Journal article
Published: 01 October 2019 in Renewable Energy
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ACS Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. Pyrolysis of three waste biomass: Effect of biomass bed thickness and distance between successive beds on pyrolytic products yield and properties. Renewable Energy 2019, 141, 549 -558.

AMA Style

Ranjeet Kumar Mishra, Kaustubha Mohanty. Pyrolysis of three waste biomass: Effect of biomass bed thickness and distance between successive beds on pyrolytic products yield and properties. Renewable Energy. 2019; 141 ():549-558.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. 2019. "Pyrolysis of three waste biomass: Effect of biomass bed thickness and distance between successive beds on pyrolytic products yield and properties." Renewable Energy 141, no. : 549-558.

Original article
Published: 16 July 2019 in Biomass Conversion and Biorefinery
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The present study was focused on the bioenergy potential of Madhuca longifolia (mahua, MH) seeds to produce renewable fuel via thermocatalytic conversion. The physicochemical characterization of MH seed confirmed its bioenergy potential. Three model-free models were used to predict the pyrolysis kinetics of MH. The thermodynamic and kinetic analysis showed that MH has complex reaction kinetics which depends on the reaction rate as well as reaction order. Mahua seed was pyrolyzed in a semi-batch cylindrical shaped reactor with (CuO, Al2O3, and NaOH) and without catalysts. The yield of pyrolytic liquid during thermal pyrolysis was 51.2 wt%, whereas the use of catalysts decreased the liquid yield slightly at various biomass to catalyst ratios. Further, characterization results revealed that the use of catalysts improved the properties of pyrolytic oil by reducing viscosity, oxygenated compounds and with increasing heating value and acidity. FTIR spectra of pyrolytic oil confirmed the existence of phenols, aromatics, water, and acids which was also supported by the 1H NMR analysis. Further, GC-MS analysis confirmed reduction in oxygenated compounds and increase in alcohol.

ACS Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. Pyrolysis characteristics, fuel properties, and compositional study of Madhuca longifolia seeds over metal oxide catalysts. Biomass Conversion and Biorefinery 2019, 10, 621 -637.

AMA Style

Ranjeet Kumar Mishra, Kaustubha Mohanty. Pyrolysis characteristics, fuel properties, and compositional study of Madhuca longifolia seeds over metal oxide catalysts. Biomass Conversion and Biorefinery. 2019; 10 (3):621-637.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Kaustubha Mohanty. 2019. "Pyrolysis characteristics, fuel properties, and compositional study of Madhuca longifolia seeds over metal oxide catalysts." Biomass Conversion and Biorefinery 10, no. 3: 621-637.

Journal article
Published: 06 June 2019 in Bioresource Technology
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This work deals with co-pyrolysis of polyethylene terephthalate (PET) with Samanea saman seeds (SS) to understand the kinetics and synergistic effects between two different feedstocks. SS and PET were blended in different ratios (1:1, 3:1 and 5:1) and iso-conversional models such as Kissinger-Akahira-Sunose (KAS), Friedman method (FM), Starink (ST), Ozawa-Flynn-Wall method (OFW), and Coats-Redfern method (CR) were used to calculate the kinetic parameters. Results substantiate assumed hypothesis that blending of SS and PET at 3:1 provided higher synergistic effect and RMS value, which in turn indicated maximum formation of hot volatiles during pyrolysis. Kinetic analysis confirmed that individual SS and PET required higher activation energy while blended SS and PET at 3:1 ratio required lower activation energy to start the reaction. The thermodynamic and kinetic analysis confirmed that biomass had complex reaction kinetics which depends on reaction rate as well as its order.

ACS Style

Ranjeet Kumar Mishra; Abhisek Sahoo; Kaustubha Mohanty. Pyrolysis kinetics and synergistic effect in co-pyrolysis of Samanea saman seeds and polyethylene terephthalate using thermogravimetric analyser. Bioresource Technology 2019, 289, 121608 .

AMA Style

Ranjeet Kumar Mishra, Abhisek Sahoo, Kaustubha Mohanty. Pyrolysis kinetics and synergistic effect in co-pyrolysis of Samanea saman seeds and polyethylene terephthalate using thermogravimetric analyser. Bioresource Technology. 2019; 289 ():121608.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Abhisek Sahoo; Kaustubha Mohanty. 2019. "Pyrolysis kinetics and synergistic effect in co-pyrolysis of Samanea saman seeds and polyethylene terephthalate using thermogravimetric analyser." Bioresource Technology 289, no. : 121608.

Journal article
Published: 18 April 2019 in Waste Management
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The present study deals co-pyrolysis of neem seeds (NM) and waste nitrile gloves (WNG) in a semi-batch reactor with and without catalysts. Results confirmed that the yield of pyrolytic liquid was higher (43.52 wt% at NM: WNG ratio of 3:1) during thermal co-pyrolysis compared to that of catalytic co-pyrolysis (40.42 wt% and 37.14 wt% respectively with CaO and Al2O3 as catalysts). The use of catalysts increased the carbon content, acidity, and heating value and reduced the oxygen content, viscosity, and density of the pyrolytic oil. FTIR analysis suggested the presence of useful functional groups while 1H NMR analysis confirmed high amounts of paraffin and aromatic compounds in the pyrolytic oil. GC–MS analysis of pyrolytic oil confirmed that blending of NM + WNG and use of catalysts reduced the oxygenated compounds and increased the alcohol and aldehyde thereby enhancing the fuel properties.

ACS Style

Ranjeet Kumar Mishra; Jayendran Shridharan Iyer; Kaustubha Mohanty. Conversion of waste biomass and waste nitrile gloves into renewable fuel. Waste Management 2019, 89, 397 -407.

AMA Style

Ranjeet Kumar Mishra, Jayendran Shridharan Iyer, Kaustubha Mohanty. Conversion of waste biomass and waste nitrile gloves into renewable fuel. Waste Management. 2019; 89 ():397-407.

Chicago/Turabian Style

Ranjeet Kumar Mishra; Jayendran Shridharan Iyer; Kaustubha Mohanty. 2019. "Conversion of waste biomass and waste nitrile gloves into renewable fuel." Waste Management 89, no. : 397-407.

Chapter
Published: 30 September 2018 in Recent Advancements in Biofuels and Bioenergy Utilization
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Energy derived from biomass provides a promising alternative source that reduces dependence on fossil fuels along with the emission of greenhouse gases (GHG). The production of heat, electricity, power, fuels, and various chemicals from the biomass can be achieved via thermochemical conversion technologies. This chapter summarizes the techno-economic analysis and life-cycle assessment of lignocellulosic biomass via thermochemical conversion routes such as combustion, pyrolysis, gasification, liquefaction, (hydrothermal). and co-firing. Specific indicators such as production costs, techno-economic analysis, functional units, and environmental impacts in a life-cycle analysis for different techniques were compared. Finally, the research lacunae and possible future trends in biomass conversion via thermochemical conversion techniques have been discussed, which may positively impact the future of research related to techno-economic and environmental benefits of bioenergy.

ACS Style

RanjeetKumar Mishra; Kaustubha Mohanty. An Overview of Techno-economic Analysis and Life-Cycle Assessment of Thermochemical Conversion of Lignocellulosic Biomass. Recent Advancements in Biofuels and Bioenergy Utilization 2018, 363 -402.

AMA Style

RanjeetKumar Mishra, Kaustubha Mohanty. An Overview of Techno-economic Analysis and Life-Cycle Assessment of Thermochemical Conversion of Lignocellulosic Biomass. Recent Advancements in Biofuels and Bioenergy Utilization. 2018; ():363-402.

Chicago/Turabian Style

RanjeetKumar Mishra; Kaustubha Mohanty. 2018. "An Overview of Techno-economic Analysis and Life-Cycle Assessment of Thermochemical Conversion of Lignocellulosic Biomass." Recent Advancements in Biofuels and Bioenergy Utilization , no. : 363-402.