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Biogas upgrading technologies: Energetic analysis and environmental impact assessment
Alternative TitleChin. J. Chem. Eng.
Xu, Yajing1,2; Huang, Ying1,2; Wu, Bin1,2; Zhang, Xiangping1; Zhang, Suojiang1
2015
Source PublicationCHINESE JOURNAL OF CHEMICAL ENGINEERING
ISSN1004-9541
Volume23Issue:1Pages:247-254
AbstractBiogas upgrading for removing CO2 and other trace components from raw biogas is a necessary step before the biogas to be used as a vehicle fuel or supplied to the natural gas grid. In this work, three technologies for biogas upgrading, i.e., pressured water scrubbing (PWS), monoethanolamine aqueous scrubbing (MAS) and ionic liquid scrubbing (ILS), are studied and assessed in terms of their energy consumption and environmental impacts with the process simulation and green degree method. A non-random-two-liquid and Henry's law property method for a CO2 separation system with ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide ([bmim][Tf2N]) is established and verified with experimental data. The assessment results indicate that the specific energy consumption of ILS and PWS is almost the same and much less than that of MAS. High purity CO2 product can be obtained by MAS and ILS methods, whereas no pure CO2 is recovered with the PWS. For the environmental aspect, ILS has the highest green degree production value, while MAS and PWS produce serious environmental impacts. (C) 2014 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.; Biogas upgrading for removing CO2 and other trace components from raw biogas is a necessary step before the biogas to be used as a vehicle fuel or supplied to the natural gas grid. In this work, three technologies for biogas upgrading, i.e., pressured water scrubbing (PWS), monoethanolamine aqueous scrubbing (MAS) and ionic liquid scrubbing (ILS), are studied and assessed in terms of their energy consumption and environmental impacts with the process simulation and green degree method. A non-random-two-liquid and Henry's law property method for a CO2 separation system with ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide ([bmim][Tf2N]) is established and verified with experimental data. The assessment results indicate that the specific energy consumption of ILS and PWS is almost the same and much less than that of MAS. High purity CO2 product can be obtained by MAS and ILS methods, whereas no pure CO2 is recovered with the PWS. For the environmental aspect, ILS has the highest green degree production value, while MAS and PWS produce serious environmental impacts. (C) 2014 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.
KeywordBiogas Upgrading Monoethanolamine Aqueous Scrubbing Pressured Water Scrubbing Ionic Liquid Green Degree
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.cjche.2014.09.048
URL查看原文
Indexed BySCI
Language英语
WOS KeywordTEMPERATURE IONIC LIQUIDS ; PRESSURE PHASE-BEHAVIOR ; CARBON-DIOXIDE ; CO2 CAPTURE ; BINARY-MIXTURES ; SOLUBILITY ; PROGRESS ; OPTIMIZATION ; ABSORPTION ; DENSITIES
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
WOS IDWOS:000349604400033
Citation statistics
Cited Times:46[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11866
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing Key Lab Ionic Liquids Clean Proc, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem & Chem Engn, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Xu, Yajing,Huang, Ying,Wu, Bin,et al. Biogas upgrading technologies: Energetic analysis and environmental impact assessment[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2015,23(1):247-254.
APA Xu, Yajing,Huang, Ying,Wu, Bin,Zhang, Xiangping,&Zhang, Suojiang.(2015).Biogas upgrading technologies: Energetic analysis and environmental impact assessment.CHINESE JOURNAL OF CHEMICAL ENGINEERING,23(1),247-254.
MLA Xu, Yajing,et al."Biogas upgrading technologies: Energetic analysis and environmental impact assessment".CHINESE JOURNAL OF CHEMICAL ENGINEERING 23.1(2015):247-254.
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