气候变化领域集成服务门户(CCPortal): Low energy intensity production of fuel-grade bio-butanol enabled by membrane-based extraction

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DOI	10.1039/d0ee02927k
	Low energy intensity production of fuel-grade bio-butanol enabled by membrane-based extraction
	Kim J.H.; Cook M.; Peeva L.; Yeo J.; Bolton L.W.; Lee Y.M.; Livingston A.G.
发表日期	2020
ISSN	17545692
起始页码	4862
结束页码	4871
卷号	13 期号:12
英文摘要	Widespread use of biofuels is inhibited by the significant energy burden of recovering fuel products from aqueous fermentation systems. Here, we describe a membrane-based extraction (perstraction) system for the recovery of fuel-grade biobutanol from fermentation broths which can extract n-butanol with high purity (>99.5%) while using less than 25% of the energy of current technology options. This is achieved by combining a spray-coated thin-film composite membrane with 2-ethyl-1-hexanol as an extractant. The membrane successfully protects the micro-organisms from the extractant, which, although ideal in other respects, is a metabolic inhibitor. In contrast to water, the extractant does not form a heterogeneous azeotrope with n-butanol, and the overall energy consumption of for n-butanol production is 3.9 MJ kg-1, substantially less than other recovery processes (17.0-29.4 MJ kg-1). By (a) extracting n-butanol from the fermentation broth without a phase change, (b) breaking the heterogeneous azeotrope relationship (less energy consumption for distillation), and (c) utilizing a small volume ratio of extractant : fermentation broth (1 : 100, v/v), the need for high energy intensity processes such as pervaporation, gas stripping or liquid-liquid extraction is avoided. The application of this perstraction system to continuous production of a range of higher alcohols is explored and shown to be highly favourable. This journal is © The Royal Society of Chemistry.
英文关键词	Azeotropes; Composite membranes; Distillation; Energy utilization; Extraction; Fermentation; Recovery; Continuous production; Current technology; Fermentation broths; Fermentation systems; Liquid-liquid extraction; Membrane-based extraction; Metabolic inhibitors; Thin film composite membranes; Biofuels; aqueous solution; energy efficiency; energy planning; extraction method; fermentation; film; fuel cell; membrane
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/189421
作者单位	Barrer Centre, Department of Chemical Engineering, Imperial College London, London, SW7 2AZ, United Kingdom; Bp Plc, Chertsey Road, Sunbury-on-Thames, Middlesex TW16 7LN, United Kingdom; Department of Energy Engineering, Hanyang University, Seoul, 04763, South Korea; School of Engineering and Materials Science, Queen Mary University of London, London, E1 4NS, United Kingdom
推荐引用方式 GB/T 7714	Kim J.H.,Cook M.,Peeva L.,et al. Low energy intensity production of fuel-grade bio-butanol enabled by membrane-based extraction[J],2020,13(12).
APA	Kim J.H..,Cook M..,Peeva L..,Yeo J..,Bolton L.W..,...&Livingston A.G..(2020).Low energy intensity production of fuel-grade bio-butanol enabled by membrane-based extraction.Energy & Environmental Science,13(12).
MLA	Kim J.H.,et al."Low energy intensity production of fuel-grade bio-butanol enabled by membrane-based extraction".Energy & Environmental Science 13.12(2020).