Membranes as a tool to support biorefineries: Applications in enzymatic hydrolysis, fermentation and dehydration for bioethanol production. (July 2017)

• Record Type: Journal Article
• Authors: Saha, Koel; R, Uma Maheswari; Sikder, Jaya; Chakraborty, Sudip; da Silva, Silvio Silverio; dos Santos, Julio Cesar
• Is Part Of: Renewable & sustainable energy reviews. Volume 74(2017)
• Page Start: 873
• Page End: 890
• Publication Date: 2017-07
• Subjects: GHG Green house gas -- IEO International Energy Outlook -- NOx Nitrous oxide -- SCR selective catalytic reduction -- CO Carbon monoxide -- HC Hydrocarbon -- RFA Renewable Fuel Association -- CO2 Carbon dioxide -- NaOH Sodium hydroxide -- [bmim]Cl 1-butyl-3 methylimidazolium chloride -- [bmim][CH3SO3] 1-butyl-3 methylimidazolium methylsulfonate -- [EMIM]oAc 1-ethyl-3-methylimidazolium acetate -- [EMIM]Ace 1-ethyl-3-methylimidazolium acesulfamate -- [BMIM]Ace 1-butyl-3 methylimidazolium acesulfamate -- AEL alkaline ethanol lignin -- H2SO4 Sulphuric acid -- IL Ionic liquid -- EFB empty fruit bunch -- FTIR Fourier Transform Infrared Spectrophotometer -- TGA Thermogravimetric Analysis -- NMR Nuclear magnetic resonance -- GPC Gel permeation chromatography -- DFRC Derivatization followed by reductive cleavage -- DMSO Dimethyl sulfoxide -- MWL Milled wood lignin -- ILL Ionic liquid lignin -- APAWAO Alkaline Peroxide Wet Air Oxidation -- PEG Polyethylene glycol -- DWC Dividing-wall columns -- CA cellulose acetate -- NY Nylon -- PS Polysulfone -- PES Polyethersulfone -- UF Ultrafiltration -- NF Nanofiltration -- RO Reverse osmosis -- MWCO Molecular weight cut off -- MD Membrane distillation -- PTFE Polytetrafluoroethylene -- PP Polypropylene -- PVDF Polyvinydilene fluoride -- DCMD Direct Contact Membrane Distillation -- EtOH Ethanol -- VMD Vacuum membrane distillation -- PDMS Polydimethylsiloxane -- PDMS-PS IPN polydimethylsiloxane-polystyrene interpenetrating polymer network -- PS Polystyrene -- PDMS-PS Polydimethylsiloxane-polystyrene -- PVA Poly(vinyl alcohol) -- MMMMs Multilayer mixed matrix membranes -- PVA Poly(vinyl alcohol) -- SA Sodium alginate -- PTMSP 1-(trimethylsilyl)-1-propyne -- PDMS Poly[dimethylsulfoxane] -- NH42SO4 Ammonium sulfate -- PTMSP Poly(1-trimethylsilyl-1-propyne); Biorefinery -- Bioethanol -- Ionic liquid -- Enzymatic hydrolysis -- Membrane separation; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.rser.2017.03.015
• Languages: English
• ISSNs: 1364-0321

Abstract

Abstract: The consumption of fossil fuels in excess leads to chronic effect of greenhouse gas (GHG) emissions on the environment. These adverse environmental impacts of GHG have invoked reasonable awareness on renewable energy resources. Bioethanol from lignocellulosic agricultural residue (profusely available renewable raw materials in the tropical areas) exhibits promising alternative to the petroleum based fossil fuel which reduces the net emission of GHGs. But due to certain technological barriers the large scale production of lignocellulosic bioethanol has not been successfully commercialized. To achieve the goal, economically viable bioethanol production technology, which includes pretreatment, enzymatic hydrolysis, fermentation, and dehydration, needs to be developed. Ionic liquid aided pretreatment can recover more than 80% cellulose and 42% lignin from lignocelluloses, which generally contains 30–46% cellulose and 18–25% lignin. Processing of the recovered cellulose towards bioethanol production requires enzymatic hydrolysis, which gives almost 76% reducing sugar yield. Use of ultrafiltration and nanofiltration in hydrolysis concentrates 27% reducing sugar as well as recovers more than 73% enzyme with 50% catalytic activity. Ultrafiltration rejects 100% yeast as well as reveals 15 g/l/h ethanol productivity, which can be subjected to membrane based dehydration by way of pervaporation to produce 99.8 wt% ethanol. The scope of this review focuses on eco-friendly and sustainable method for bioethanol production. A holistic and dedicated approach of this review helps to solve the various technological concerns and realize large scale commercialization of lignocellulosic ethanol.