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May-Britt Hägg
TCCS-9, Norway

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Editorial
Published: 28 April 2019 in International Journal of Greenhouse Gas Control
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ACS Style

Nils A. Røkke; May Britt Hägg. The 9th Trondheim CCS conference on CO2 capture, transport and storage—Special Issue International Journal on Greenhouse Gas Control. International Journal of Greenhouse Gas Control 2019, 86, 10 .

AMA Style

Nils A. Røkke, May Britt Hägg. The 9th Trondheim CCS conference on CO2 capture, transport and storage—Special Issue International Journal on Greenhouse Gas Control. International Journal of Greenhouse Gas Control. 2019; 86 ():10.

Chicago/Turabian Style

Nils A. Røkke; May Britt Hägg. 2019. "The 9th Trondheim CCS conference on CO2 capture, transport and storage—Special Issue International Journal on Greenhouse Gas Control." International Journal of Greenhouse Gas Control 86, no. : 10.

Journal article
Published: 13 November 2018 in Membranes
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Industrial scale production of carbon membrane is very challenging due to expensive precursor materials and a multi-step process with several variables to deal with. The optimization of these variables is essential to gain a competent carbon membrane (CM) with high performance and good mechanical properties. In this paper, a pilot scale system is reported that was developed to produce CM from regenerated cellulose precursor with the annual production capacity 700 m2 of CM. The process was optimized to achieve maximum yield (>95%) of high quality precursor fibers and carbonized fibers. A dope solution of cellulose acetate (CA)/Polyvinylpyrrolidone (PVP)/N-methyl-2-pyrrolidone (NMP) and bore fluid of NMP/H2O were used in 460 spinning-sessions of the fibers using a well-known dry/wet spinning process. Optimized deacetylation of spun-CA hollow fibers (CAHF) was achieved by using 90 vol% 0.075 M NaOH aqueous solution diluted with 10 vol% isopropanol for 2.5 h at ambient temperature. Cellulose hollow fibers (CHF) dried at room temperature and under RH (80% → ambient) overnight gave maximum yield for both dried CHF, as well as carbon fibers. The gas permeation properties of carbon fibers were also high (CO2 permeability: 50–450 Barrer (1 Barrer = 2.736 × 10−9 m3 (STP) m/m2 bar h), and CO2/CH4 selectivity acceptable (50–500).

ACS Style

Shamim Haider; Jon Lie; Arne Lindbråthen; May-Britt Hägg. Pilot–Scale Production of Carbon Hollow Fiber Membranes from Regenerated Cellulose Precursor-Part I: Optimal Conditions for Precursor Preparation. Membranes 2018, 8, 105 .

AMA Style

Shamim Haider, Jon Lie, Arne Lindbråthen, May-Britt Hägg. Pilot–Scale Production of Carbon Hollow Fiber Membranes from Regenerated Cellulose Precursor-Part I: Optimal Conditions for Precursor Preparation. Membranes. 2018; 8 (4):105.

Chicago/Turabian Style

Shamim Haider; Jon Lie; Arne Lindbråthen; May-Britt Hägg. 2018. "Pilot–Scale Production of Carbon Hollow Fiber Membranes from Regenerated Cellulose Precursor-Part I: Optimal Conditions for Precursor Preparation." Membranes 8, no. 4: 105.

Journal article
Published: 10 November 2018 in Journal of Industrial and Engineering Chemistry
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Predictive models regarding the aging effect on membrane separation properties are required to estimate the membrane life time with acceptable permeability and selectivity for the respective application. The current article is reporting an insight into this topic regarding the aging of regenerated cellulose-based carbon hollow fibres (CHF) mounted in a membrane module when they were exposed to real biogas in three different fields. CHF were exposed to biogas for almost one year with H2S content extending from 0–2400 ppm, and gas permeation tests for single gases, N2, CO2, CH4, and O2 were analysed periodically at the membrane production facility. CHF storage methods under miscellaneous dry environments like air, vacuum, CO2, etc. were studied. The air flow through bore side of the CHF under controlled conditions had a regenerative effect on the membrane permeability, and the membrane performance was quite steady until after 150 days under laboratory environment.

ACS Style

Shamim Haider; Arne Lindbråthen; Jon A. Lie; May-Britt Hägg. Regenerated cellulose based carbon membranes for CO2 separation: Durability and aging under miscellaneous environments. Journal of Industrial and Engineering Chemistry 2018, 70, 363 -371.

AMA Style

Shamim Haider, Arne Lindbråthen, Jon A. Lie, May-Britt Hägg. Regenerated cellulose based carbon membranes for CO2 separation: Durability and aging under miscellaneous environments. Journal of Industrial and Engineering Chemistry. 2018; 70 ():363-371.

Chicago/Turabian Style

Shamim Haider; Arne Lindbråthen; Jon A. Lie; May-Britt Hägg. 2018. "Regenerated cellulose based carbon membranes for CO2 separation: Durability and aging under miscellaneous environments." Journal of Industrial and Engineering Chemistry 70, no. : 363-371.

Journal article
Published: 15 October 2018 in Membranes
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The simultaneous carbonization of thousands of fibers in a horizontal furnace may result in fused fibers if carbonization residuals (tars) are not removed fast enough. The optimized purge gas flow rate and a small degree angle in the furnace position may enhance the yield of high quality carbon fibers up to 97% by removing by-products. The production process for several thousand carbon fibers in a single batch is reported. The aim was developing a pilot-scale system to produce carbon membranes. Cellulose-acetate fibers were transformed into regenerated cellulose through a de-acetylation process and the fibers were carbonized in a horizontally oriented three-zone furnace. Quartz tubes and perforated stainless steel grids were used to carbonize up to 4000 (160 cm long) fibers in a single batch. The number of fused fibers could be significantly reduced by replacing the quartz tubes with perforated grids. It was further found that improved purge gas flow distribution in the furnace positioned at a 4-degree to 6-degree angle permitted residuals to flow downward into the tar collection chamber. In total, 390 spun-batches of fibers were carbonized. Each grid contained 2000–4000 individual fibers and these fibers comprised four to six spun-batches of vertically dried fibers. Gas permeation properties were investigated for the carbon fibers.

ACS Style

Shamim Haider; Jon Lie; Arne Lindbråthen; May-Britt Hägg. Pilot–Scale Production of Carbon Hollow Fiber Membranes from Regenerated Cellulose Precursor-Part II: Carbonization Procedure. Membranes 2018, 8, 97 .

AMA Style

Shamim Haider, Jon Lie, Arne Lindbråthen, May-Britt Hägg. Pilot–Scale Production of Carbon Hollow Fiber Membranes from Regenerated Cellulose Precursor-Part II: Carbonization Procedure. Membranes. 2018; 8 (4):97.

Chicago/Turabian Style

Shamim Haider; Jon Lie; Arne Lindbråthen; May-Britt Hägg. 2018. "Pilot–Scale Production of Carbon Hollow Fiber Membranes from Regenerated Cellulose Precursor-Part II: Carbonization Procedure." Membranes 8, no. 4: 97.

Journal article
Published: 08 June 2018 in Membranes
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In this article, we studied two different types of polyhedral oligomeric silsesquioxanes (POSS®) functionalized nanoparticles as additives for nanocomposite membranes for CO2 separation. One with amidine functionalization (Amidino POSS®) and the second with amine and lactamide groups functionalization (Lactamide POSS®). Composite membranes were produced by casting a polyvinyl alcohol (PVA) layer, containing either amidine or lactamide functionalized POSS® nanoparticles, on a polysulfone (PSf) porous support. FTIR characterization shows a good compatibility between the nanoparticles and the polymer. Differential scanning calorimetry (DSC) and the dynamic mechanical analysis (DMA) show an increment of the crystalline regions. Both the degree of crystallinity (Xc) and the alpha star transition, associated with the slippage between crystallites, increase with the content of nanoparticles in the PVA selective layer. These crystalline regions were affected by the conformation of the polymer chains, decreasing the gas separation performance. Moreover, lactamide POSS® shows a higher interaction with PVA, inducing lower values in the CO2 flux. We have concluded that the interaction of the POSS® nanoparticles increased the crystallinity of the composite membranes, thereby playing an important role in the gas separation performance. Moreover, these nanocomposite membranes did not show separation according to a facilitated transport mechanism as expected, based on their functionalized amino-groups, thus, solution-diffusion was the main mechanism responsible for the transport phenomena.

ACS Style

Gabriel Guerrero; May-Britt Hägg; Christian Simon; Thijs Peters; Nicolas Rival; Christelle Denonville. CO2 Separation in Nanocomposite Membranes by the Addition of Amidine and Lactamide Functionalized POSS® Nanoparticles into a PVA Layer. Membranes 2018, 8, 28 .

AMA Style

Gabriel Guerrero, May-Britt Hägg, Christian Simon, Thijs Peters, Nicolas Rival, Christelle Denonville. CO2 Separation in Nanocomposite Membranes by the Addition of Amidine and Lactamide Functionalized POSS® Nanoparticles into a PVA Layer. Membranes. 2018; 8 (2):28.

Chicago/Turabian Style

Gabriel Guerrero; May-Britt Hägg; Christian Simon; Thijs Peters; Nicolas Rival; Christelle Denonville. 2018. "CO2 Separation in Nanocomposite Membranes by the Addition of Amidine and Lactamide Functionalized POSS® Nanoparticles into a PVA Layer." Membranes 8, no. 2: 28.

Journal article
Published: 26 May 2018 in Separation and Purification Technology
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Carbon membrane (CM) separation process for producing oxygen-enriched air (OEA) at a concentration of 50–78 mol% O2 in a single stage process with no recycle stream has been investigated. This paper (Part II of a two-part study) considers techno-economic analysis for O2-selective carbon membranes to yield the lowest production cost of “equivalent” pure oxygen (EPO2) in a single stage separation process based on experimental and predictive membrane performance. Aspen Hysys® interfaced with ChemBrane (in-house developed model) was used to perform the simulations for air separation with CM. Three different approaches with respect to pressure were investigated; (1) feed compression, (2) vacuum on permeate side and (3) combination of (1) and (2). The simulation results and sensitivity analysis showed that with current performance (O2 permeability: 10 Barrer (1 Barrer = 2.736E − 09 m3(STP)m/(m2 bar h)) and O2/N2 selectivity: 18), mechanical properties, and cost per m2 of CM, it is economically most efficient to use the third approach “combination of feed compression and permeate vacuum” to produce EPO2. A stage cut of 10% was found to be as an average economical optimum when using vacuum pump (approach (2)) to produce OEA. However, the techno-economic analysis for the reported CM showed that a stage cut of 0.15–0.2 was the most cost-effective while using compression approach (1) or (3) to produce EPO2.

ACS Style

Shamim Haider; Arne Lindbråthen; Jon Arvid Lie; May-Britt Hägg. Carbon membranes for oxygen enriched air – Part II: Techno-economic analysis. Separation and Purification Technology 2018, 205, 251 -262.

AMA Style

Shamim Haider, Arne Lindbråthen, Jon Arvid Lie, May-Britt Hägg. Carbon membranes for oxygen enriched air – Part II: Techno-economic analysis. Separation and Purification Technology. 2018; 205 ():251-262.

Chicago/Turabian Style

Shamim Haider; Arne Lindbråthen; Jon Arvid Lie; May-Britt Hägg. 2018. "Carbon membranes for oxygen enriched air – Part II: Techno-economic analysis." Separation and Purification Technology 205, no. : 251-262.

Journal article
Published: 30 March 2018 in Green Energy & Environment
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The energy contents of biogas could be significantly enhanced by upgrading it to vehicle fuel quality. A pilot-scale separation plant based on carbon hollow fiber membranes for upgrading biogas to vehicle fuel quality was constructed and operated at the biogas plant, Glør IKS, Lillehammer Norway. Vehicle fuel quality according to Swedish legislation was successfully achieved in a single stage separation process. The raw biogas from anaerobic digestion of food waste contained 64 ± 3 mol% CH4, 30–35 mol% CO2 and less than one percent of N2 and a minor amount of other impurities. The raw biogas was available at 1.03 bar with a maximum flow rate of 60 Nm3 h−1. Pre-treatment of biogas was performed to remove bulk H2O and H2S contents up to the required limits in the vehicle fuel before entering to membrane system. The membrane separation plant was designed to process 60 Nm3 h−1 of raw biogas at pressure up to 21 bar. The initial tests were, however, performed for the feed flow rate of 10 Nm3 h−1 at 21 bar. The successful operation of the pilot plant separation was continuously run for 192 h (8 days). The CH4 purity of 96% and maximum CH4 recovery of 98% was reached in a short-term test of 5 h. The permeate stream contained over 20 mol% CH4 which could be used for the heating application. Aspen Hysys® was integrated with ChemBrane (in-house developed membrane model) to run the simulations for estimation of membrane area and energy requirement of the pilot plant. Cost estimation was performed based on simulation data and later compared with actual field results.

ACS Style

Shamim Haider; Arne Lindbråthen; Jon Arvid Lie; Petter Vattekar Carstensen; Thorbjørn Johannessen; May-Britt Hägg. Vehicle fuel from biogas with carbon membranes; a comparison between simulation predictions and actual field demonstration. Green Energy & Environment 2018, 3, 266 -276.

AMA Style

Shamim Haider, Arne Lindbråthen, Jon Arvid Lie, Petter Vattekar Carstensen, Thorbjørn Johannessen, May-Britt Hägg. Vehicle fuel from biogas with carbon membranes; a comparison between simulation predictions and actual field demonstration. Green Energy & Environment. 2018; 3 (3):266-276.

Chicago/Turabian Style

Shamim Haider; Arne Lindbråthen; Jon Arvid Lie; Petter Vattekar Carstensen; Thorbjørn Johannessen; May-Britt Hägg. 2018. "Vehicle fuel from biogas with carbon membranes; a comparison between simulation predictions and actual field demonstration." Green Energy & Environment 3, no. 3: 266-276.

Journal article
Published: 19 March 2018 in International Journal of Petrochemical Science & Engineering
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ACS Style

Qiang Yu; Maria Teresa Guzman Gutierrez; May-Britt Hägg. Using an osmotic membrane pressure actuator (OMPA) for enhanced oil and gas recovery – the concept. International Journal of Petrochemical Science & Engineering 2018, 3, 1 .

AMA Style

Qiang Yu, Maria Teresa Guzman Gutierrez, May-Britt Hägg. Using an osmotic membrane pressure actuator (OMPA) for enhanced oil and gas recovery – the concept. International Journal of Petrochemical Science & Engineering. 2018; 3 (2):1.

Chicago/Turabian Style

Qiang Yu; Maria Teresa Guzman Gutierrez; May-Britt Hägg. 2018. "Using an osmotic membrane pressure actuator (OMPA) for enhanced oil and gas recovery – the concept." International Journal of Petrochemical Science & Engineering 3, no. 2: 1.

Journal article
Published: 01 December 2017 in Journal of Membrane Science
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Gabriel Guerrero; May-Britt Hägg; Gertrude Kignelman; Christian Simon; Thijs Peters; Nicolas Rival; Christelle Denonville. Investigation of amino and amidino functionalized Polyhedral Oligomeric SilSesquioxanes (POSS®) nanoparticles in PVA-based hybrid membranes for CO2/N2 separation. Journal of Membrane Science 2017, 544, 161 -173.

AMA Style

Gabriel Guerrero, May-Britt Hägg, Gertrude Kignelman, Christian Simon, Thijs Peters, Nicolas Rival, Christelle Denonville. Investigation of amino and amidino functionalized Polyhedral Oligomeric SilSesquioxanes (POSS®) nanoparticles in PVA-based hybrid membranes for CO2/N2 separation. Journal of Membrane Science. 2017; 544 ():161-173.

Chicago/Turabian Style

Gabriel Guerrero; May-Britt Hägg; Gertrude Kignelman; Christian Simon; Thijs Peters; Nicolas Rival; Christelle Denonville. 2017. "Investigation of amino and amidino functionalized Polyhedral Oligomeric SilSesquioxanes (POSS®) nanoparticles in PVA-based hybrid membranes for CO2/N2 separation." Journal of Membrane Science 544, no. : 161-173.

Journal article
Published: 16 August 2017 in Separation and Purification Technology
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Carbon hollow fibers (CHF) were fabricated by carbonization of deacetylated cellulose acetate precursor. To enhance membrane permeation properties, pore structure was tailored by means of an oxidation and reduction process followed by chemical vapor deposition with propene. Permeation properties using shell-side feed configuration of 70 modules (0.2–2 m2) for both CHF and modified carbon hollow fibers (MCHF) were investigated for single gases, N2 and CO2 at high pressure (2–70 bar feed vs 0.05–1 bar permeate pressure) and temperature from 25–120 °C. Maximum CO2 permeance value for a MCHF module was recorded 50,000 times higher as compared to prior modification, and CO2/N2 selectivity was improved 41 times in comparison with CHF for the same module. Results indicated that carbon membranes are hardly effected by high pressure, but significant drop in CO2 permeability was observed at elevated temperature. Simulations of CO2/CH4 separation by MCHF and polymeric membranes were conducted based on Aspen Hysys® integrated with ChemBrane, and the process was optimized for cost calculation based on membrane area and compression energy. Simulation results indicated that the required separation can be achieved by a single stage process for MCHF, while a two-stage process is needed for the polymeric membranes.

ACS Style

Shamim Haider; Arne Lindbråthen; Jon Arvid Lie; Ingerid Caroline Tvenning Andersen; May-Britt Hägg. CO 2 separation with carbon membranes in high pressure and elevated temperature applications. Separation and Purification Technology 2017, 190, 177 -189.

AMA Style

Shamim Haider, Arne Lindbråthen, Jon Arvid Lie, Ingerid Caroline Tvenning Andersen, May-Britt Hägg. CO 2 separation with carbon membranes in high pressure and elevated temperature applications. Separation and Purification Technology. 2017; 190 ():177-189.

Chicago/Turabian Style

Shamim Haider; Arne Lindbråthen; Jon Arvid Lie; Ingerid Caroline Tvenning Andersen; May-Britt Hägg. 2017. "CO 2 separation with carbon membranes in high pressure and elevated temperature applications." Separation and Purification Technology 190, no. : 177-189.

Journal article
Published: 01 July 2017 in Energy Procedia
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ACS Style

Gabriel Guerrero; Davide Venturi; Thijs Peters; Nicolas Rival; Christelle Denonville; Christian Simon; Partow P. Henriksen; May-Britt Hägg. Influence of Functionalized Nanoparticles on the CO2/N2 Separation Properties of PVA-based Gas Separation Membranes. Energy Procedia 2017, 114, 627 -635.

AMA Style

Gabriel Guerrero, Davide Venturi, Thijs Peters, Nicolas Rival, Christelle Denonville, Christian Simon, Partow P. Henriksen, May-Britt Hägg. Influence of Functionalized Nanoparticles on the CO2/N2 Separation Properties of PVA-based Gas Separation Membranes. Energy Procedia. 2017; 114 ():627-635.

Chicago/Turabian Style

Gabriel Guerrero; Davide Venturi; Thijs Peters; Nicolas Rival; Christelle Denonville; Christian Simon; Partow P. Henriksen; May-Britt Hägg. 2017. "Influence of Functionalized Nanoparticles on the CO2/N2 Separation Properties of PVA-based Gas Separation Membranes." Energy Procedia 114, no. : 627-635.

Review
Published: 06 April 2016 in ChemBioEng Reviews
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ACS Style

Sikander Rafiq; Liyuan Deng; May-Britt Hägg. Role of Facilitated Transport Membranes and Composite Membranes for Efficient CO2Capture - A Review. ChemBioEng Reviews 2016, 3, 68 -85.

AMA Style

Sikander Rafiq, Liyuan Deng, May-Britt Hägg. Role of Facilitated Transport Membranes and Composite Membranes for Efficient CO2Capture - A Review. ChemBioEng Reviews. 2016; 3 (2):68-85.

Chicago/Turabian Style

Sikander Rafiq; Liyuan Deng; May-Britt Hägg. 2016. "Role of Facilitated Transport Membranes and Composite Membranes for Efficient CO2Capture - A Review." ChemBioEng Reviews 3, no. 2: 68-85.

Research article
Published: 27 May 2014 in Industrial & Engineering Chemistry Research
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Tom-Gøran Skog; Stine Johansen; May-Britt Hägg. Method to Prepare Lab-Sized Hollow Fiber Modules for Gas Separation Testing. Industrial & Engineering Chemistry Research 2014, 53, 9841 -9848.

AMA Style

Tom-Gøran Skog, Stine Johansen, May-Britt Hägg. Method to Prepare Lab-Sized Hollow Fiber Modules for Gas Separation Testing. Industrial & Engineering Chemistry Research. 2014; 53 (23):9841-9848.

Chicago/Turabian Style

Tom-Gøran Skog; Stine Johansen; May-Britt Hägg. 2014. "Method to Prepare Lab-Sized Hollow Fiber Modules for Gas Separation Testing." Industrial & Engineering Chemistry Research 53, no. 23: 9841-9848.

Original research article
Published: 01 January 2013 in Frontiers in Chemistry
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We performed classical molecular dynamics (MD) simulations to understand the mechanism of adsorption from a gas mixture of CO2 and H2 (mole fraction of CO2 = 0.30) and diffusion along a graphite surface, with the aim to help enrich industrial off-gases in CO2, separating out H2. The temperature of the system in the simulation covered typical industrial conditions for off-gas treatment (250 ̶ 550K). The interaction energy of single molecules CO2 or H2 on graphite surface was calculated with classical force fields and with Density Functional Theory (DFT). The results were in good agreement. The binding energy of CO2 on graphite surface is three times larger than that of H2. At lower temperatures, the selectivity of CO2 over H2 is five times larger than at higher temperatures. The position of the dividing surface was used to explain how the adsorption varies with pore size. In the temperature range studied, the self-diffusion coefficient of CO2 is always smaller than of H2. The temperature variation of the selectivities and the self diffusion coefficient imply that the carbon molecular sieve membrane can be used for gas enrichment of CO2.

ACS Style

Thuat Trinh; Thijs J. H. Vlugt; May-Britt Hägg; Dick Bedeaux; Signe Kjelstrup. Selectivity and self-diffusion of CO2 and H2 in a mixture on a graphite surface. Frontiers in Chemistry 2013, 1, 1 .

AMA Style

Thuat Trinh, Thijs J. H. Vlugt, May-Britt Hägg, Dick Bedeaux, Signe Kjelstrup. Selectivity and self-diffusion of CO2 and H2 in a mixture on a graphite surface. Frontiers in Chemistry. 2013; 1 ():1.

Chicago/Turabian Style

Thuat Trinh; Thijs J. H. Vlugt; May-Britt Hägg; Dick Bedeaux; Signe Kjelstrup. 2013. "Selectivity and self-diffusion of CO2 and H2 in a mixture on a graphite surface." Frontiers in Chemistry 1, no. : 1.