Capillary supported ultrathin homogeneous silicalite-poly(dimethylsiloxane) nanocomposite membrane for bio-butanol recovery

Liu, Xinlei; Li, Yanshuo; Liu, Yi; Gong, Zhu; Liu, Jie; Yang, Weishen

doi:10.1016/j.memsci.2010.11.074

Cited by 84 publications

(38 citation statements)

References 32 publications

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“…Below we summarize the main results from a separate paper that focused on the removal of isobutanol (6% (v/v)) from aqueous solution using pervaporation . Membrane materials have a large effect on the efficiency of alcohol removal by the pervaporation (PV) process . By evaluating the properties of the materials, one can determine how diffusivity and sorption properties change.…”

Section: Resultsmentioning

confidence: 99%

“…By evaluating the properties of the materials, one can determine how diffusivity and sorption properties change. Traditional PV membranes often employ an ultrathin layer of a homogeneous silicone rubber, e.g., polydimethylsiloxane (PDMS) . These membranes are limited to a single surface chemistry and need to rely on membrane doping to achieve selectivity and separation.…”

Section: Resultsmentioning

confidence: 99%

“…30 Membrane materials have a large effect on the efficiency of alcohol removal by the pervaporation (PV) process. 31 By evaluating the properties of the materials, one can determine how diffusivity and sorption properties change. Traditional PV membranes often employ an ultrathin layer of a homogeneous silicone rubber, e.g., polydimethylsiloxane (PDMS).…”

Section: In Situ Isobutanol Removal-pervaporationmentioning

confidence: 99%

“…Traditional PV membranes often employ an ultrathin layer of a homogeneous silicone rubber, e.g., polydimethylsiloxane (PDMS). 31 These membranes are limited to a single surface chemistry and need to rely on membrane doping 32 to achieve selectivity and separation. Our novel hydrophobic brush membrane exhibited a total flux, J, of 0.8 6 0.15 LMH (L/m 2 h); this is comparable to the fluxes for commercial PDMS membranes Sil5 and Sil20 of J 5 0.7 6 0.06 LMH and 1 6 0.11 LMH, respectively.…”

Section: In Situ Isobutanol Removal-pervaporationmentioning

confidence: 99%

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Towards cell-free isobutanol production: Development of a novel immobilized enzyme system

Grimaldi

Collins

Belfort

2015

Biotechnol Progress

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Producing fuels and chemical intermediates with cell cultures is severely limited by low product concentrations (≤0.2%(v/v)) due to feedback inhibition, cell instability, and lack of economical product recovery processes. We have developed an alternate simplified production scheme based on a cell-free immobilized enzyme system. Two immobilized enzymes (keto-acid decarboxylase (KdcA) and alcohol dehydrogenase (ADH)) and one enzyme in solution (formate dehydrogenase (FDH) for NADH recycle) produced isobutanol titers 8 to 20 times higher than the highest reported titers with S. cerevisiae on a mol/mol basis. These high conversion rates and low protein leaching were achieved by covalent immobilization of enzymes (ADH) and enzyme fusions (fKdcA) on methacrylate resin. The new enzyme system without in situ removal of isobutanol achieved a 55% conversion of ketoisovaleric acid to isobutanol at a concentration of 0.135 (mole isobutanol produced for each mole ketoisovaleric acid consumed). Further increasing titer will require continuous removal of the isobutanol using an in situ recovery system.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: In Situ Isobutanol Removal-pervaporationmentioning

confidence: 99%

Section: In Situ Isobutanol Removal-pervaporationmentioning

confidence: 99%

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Towards cell-free isobutanol production: Development of a novel immobilized enzyme system

Grimaldi

Collins

Belfort

2015

Biotechnol Progress

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“…Because flux through a membrane is inversely proportional to the membrane thickness, thinner membranes will ensure higher fluxes. Membrane stability and pervaporative ability have been increased by incorporating silicalite [172,175,188], zeolite [175,189,190], and ceramics [191]. Membrane stability and pervaporative ability have been increased by incorporating silicalite [172,175,188], zeolite [175,189,190], and ceramics [191].…”

Section: Pervaporationmentioning

confidence: 99%

Quest for sustainable bio-production and recovery of butanol as a promising solution to fossil fuel

Maiti

Gallastegui

Brar

et al. 2015

Int. J. Energy Res.

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Summary Biobutanol has conventionally been generated by fermentation of carbohydrates derived from biomass (starch or sugar‐based feedstock, such as corn) using Clostridia strains (mainly C. beijerinckii and C. acetobutylicum) under anaerobic conditions in batch mode. Under these premises, it has been tough for the acetone–butanol–ethanol fermentation to compete with petro‐butanol production from an energy efficiency and material consumption standpoint. Challenges for butanol production from biomass comprised high cost of feedstock, scarcity of hyper‐butanol producing bacteria and low butanol yield, volumetric productivity and titre, leading to high water usage and separation‐purification costs. This article is an up‐to‐date review on several under explored sections, such as optimization of fermenter feed, microbial culture responsible for solvent production (co‐culture techniques and electro‐biochemical process), latest recovery techniques and the studies integrating in situ continuous fermentation processes. Biobutanol refinery way forward should build upon the use of low‐cost lignocellulosic matter and zero cost organic wastes and by‐products from food, agriculture, forestry, fermentation and paper industries as feedstock; optimized fermentation of such diversified feed with appropriate hyper‐butanol producing strains in biofilm reactors and integration of fermentation step with hybrid high butanol‐selective recovery techniques. Copyright © 2015 John Wiley & Sons, Ltd.

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Advanced Membrane Technology for Products Separation in Biorefinery

Zhang

2012

The Role of Green Chemistry in Biomass Processing and Conversion

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Capillary supported ultrathin homogeneous silicalite-poly(dimethylsiloxane) nanocomposite membrane for bio-butanol recovery

Cited by 84 publications

References 32 publications

Towards cell-free isobutanol production: Development of a novel immobilized enzyme system

Towards cell-free isobutanol production: Development of a novel immobilized enzyme system

Quest for sustainable bio-production and recovery of butanol as a promising solution to fossil fuel

Advanced Membrane Technology for Products Separation in Biorefinery

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