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Enhancement of anaerobic digestion of grass by pretreatment with imidazolium-based ionic liquids
Li, W.1,2; Xu, G.2
2017
发表期刊ENVIRONMENTAL TECHNOLOGY
ISSN0959-3330
卷号38期号:15页码:1843-1851
摘要In this work, the toxicity of imidazolium-based ionic liquids (ILs) and the enhancement of high-solid anaerobic digestion by pretreatment were studied. Compared with [Bmim] Cl, [Bmim] OAc and [Bmim] BF4, [Bmim] PF6 had the highest toxicity. When the mass ratio of [Bmim] PF6 to grass was higher than 1: 10, biogas was not produced within 30 days. The ability to remove lignin and hemicellulose followed the sequence of [Bmim] OAc, [Bmim] Cl, [Bmim] BF4 and [Bmim] PF6. The crystallinity index of grass pretreated with [Bmim] OAc, [Bmim] Cl, [Bmim] BF4 and [Bmim] PF6 reduced by 73.83%, 54.44%, 17.52% and 7.47%, respectively. The pretreatment with ILs enhanced the methane yield of grass by reducing crystallinity and particle size. The grass pretreated with [Bmim] OAc had the highest methane yield, about 221 mL/g volatile solids, due to its good lignin removal ability and relative low toxicity. After 10 times recycling, the cumulative methane yield of grass pretreated by recycled [Bmim] OAc decreased by 11.95%.
关键词Ionic Liquids Biogas Hydrolysis Anaerobic Digestion Pretreatment
文章类型Article
WOS标题词Science & Technology ; Life Sciences & Biomedicine
DOI10.1080/09593330.2016.1238963
收录类别SCI
语种英语
关键词[WOS]LIGNOCELLULOSIC BIOMASS ; ENZYMATIC-HYDROLYSIS ; SACCHARIFICATION ; TOXICITY ; SYSTEMS ; LIGNIN ; WASTE ; STRAW ; ACID
WOS研究方向Environmental Sciences & Ecology
WOS类目Environmental Sciences
项目资助者National Research Foundation Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) program
WOS记录号WOS:000403391600002
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22631
专题多相复杂系统国家重点实验室
作者单位1.Natl Univ Singapore, NUS Environm Res Inst, 5A Engn Dr 1, Singapore 117411, Singapore
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China
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GB/T 7714
Li, W.,Xu, G.. Enhancement of anaerobic digestion of grass by pretreatment with imidazolium-based ionic liquids[J]. ENVIRONMENTAL TECHNOLOGY,2017,38(15):1843-1851.
APA Li, W.,&Xu, G..(2017).Enhancement of anaerobic digestion of grass by pretreatment with imidazolium-based ionic liquids.ENVIRONMENTAL TECHNOLOGY,38(15),1843-1851.
MLA Li, W.,et al."Enhancement of anaerobic digestion of grass by pretreatment with imidazolium-based ionic liquids".ENVIRONMENTAL TECHNOLOGY 38.15(2017):1843-1851.
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