Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Experimental study on hydrate-based gas separation of mixed CH4/CO2 using unstable ice in a silica gel bed | |
Liu, Jun1,2,3,4,5; Ding, Jia-Xiang1,2,3,4,5; Liang, De-Qing1,2,3,4
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| 2018-08-15 | |
| Source Publication | ENERGY
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| ISSN | 0360-5442 |
| Volume | 157Pages:54-64 |
| Corresponding Author | Liang, De-Qing(liangdq@ms.giec.ac.cn) |
| Abstract | The reduction of energy consumed in the hydrate formation process has attracted a great attention in many fields, such as renewable energy resources and environmental issues. In this work, the water and the ice were investigated by powder X-ray diffraction (PXRD) and cryo-scanning electron microscope (SEM) in the silica gel, and the hydrate-based gas separation of CH4/CO2 mixtures was studied at four different pressures (2.6, 3.7, 4.6 and 5.2 MPa) and three different temperatures (271.1, 268.1 and 263.1 K) in silica gel bed. The results showed that water was transformed into discontinuous unstable hexagonal ice crystals on silica gel surface, which was in favor of hydrate formation. Water conversion to hydrate and normalized gas consumption were up to 100% and 0.151 (mol/mol) at 263.1 K and above 4.2 MPa, respectively. CO2 proportion in hydrate, split fraction of CH4 in equilibrium gas and separation factor were up to 99.60%, 99.8% and 257.34 at 2.6 MPa and in the temperature range of 268.1-271.1 K, respectively. It will be of practical interest in relation to losing methane of multistage hydrate-based biogas purification technology. (C) 2018 Elsevier Ltd. All rights reserved. |
| Keyword | Biogas Silica gel Hydrate-based Separation Unstable ice |
| DOI | 10.1016/j.energy.2018.05.124 |
| WOS Keyword | PRE-COMBUSTION CAPTURE ; SIMULATED LANDFILL GAS ; CARBON-DIOXIDE ; CLATHRATE-HYDRATE ; CO2 CAPTURE ; FLUE-GAS ; PORE STRUCTURE ; NATURAL-GAS ; PHASE-EQUILIBRIA ; CH4 RECOVERY |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China[41374149] ; CNPC[2015A-4813] ; CAS[2015A-4813] |
| WOS Research Area | Thermodynamics ; Energy & Fuels |
| Funding Organization | National Natural Science Foundation of China ; CNPC ; CAS |
| WOS Subject | Thermodynamics ; Energy & Fuels |
| WOS ID | WOS:000440876600006 |
| Publisher | PERGAMON-ELSEVIER SCIENCE LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/23785 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Liang, De-Qing |
| Affiliation | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China 5.Univ Chinese Acad Sci, Guangzhou 510640, Guangdong, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Liu, Jun,Ding, Jia-Xiang,Liang, De-Qing. Experimental study on hydrate-based gas separation of mixed CH4/CO2 using unstable ice in a silica gel bed[J]. ENERGY,2018,157:54-64. |
| APA | Liu, Jun,Ding, Jia-Xiang,&Liang, De-Qing.(2018).Experimental study on hydrate-based gas separation of mixed CH4/CO2 using unstable ice in a silica gel bed.ENERGY,157,54-64. |
| MLA | Liu, Jun,et al."Experimental study on hydrate-based gas separation of mixed CH4/CO2 using unstable ice in a silica gel bed".ENERGY 157(2018):54-64. |
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