Competitive adsorption characteristics of CH4/C2H6 gas mixtures on model substances, coal and shale
文献类型：期刊论文
| 作者 | Liu, Peng1; Wang, Xiaofeng1; Li, Xiaofu1; Zhang, Ting3; Du, Guichao2; Liu, Wenhui1 |
| 刊名 | FUEL
 |
| 出版日期 | 2020-11-01 |
| 卷号 | 279页码:9 |
| ISSN号 | 0016-2361 |
| 关键词 | Competitive adsorption Gas mixtures Mathematical model Adsorption rate constant Induction force Dispersion force |
| DOI | 10.1016/j.fuel.2020.118038 |
| 英文摘要 | Dynamic adsorption experiments were conducted on different samples to investigate the process and mechanism of competitive adsorption between CH4 and C2H6 molecules. Based on adsorption breakthrough curves obtained from adsorption experiments, mathematical models of the adsorption process were established and related adsorption parameters were calculated. The results show that competitive adsorption between CH4 and C2H6 molecules on adsorption materials can occur when adsorption materials have a significantly greater adsorption capacity of C2H6 than that of CH4. Meanwhile, fitted Yoon and Nelson model indicates different adsorption rate constants in CH4 and C2H6. Generally, samples with competitive adsorption characteristics, including 5 A molecular sieve, 13X molecular sieve, activated carbon and shale, are characterized by obvious higher adsorption rate constant of CH4 than that of C2H6. Whereas, samples with no competitive adsorption characteristics, including 3 angstrom molecular sieve and coal, are characterized by almost same adsorption rate constants. The significantly greater adsorption capacity of C2H6 than that of CH4 and obvious higher adsorption rate constant of CH4 than that of C2H6 for samples in this study may result from a stronger induced force and dispersion force of C2H6 with adsorbent compared with CH4 in existing of metal ion. During the increasing maturity stage of kerogen, competitive adsorption of methane and ethane can obviously influence the gas composition in free gas at relatively low maturity stage and such influence becomes weaker at higher maturity stage. |
| WOS关键词 | HIGH THERMAL MATURITY ; METHANE/ETHANE MIXTURES ; SOUTHERN SICHUAN ; LONGMAXI SHALE ; CARBON-DIOXIDE ; CO2 ; CH4 ; TRANSPORT ; N-2 ; SIMULATION |
| 资助项目 | National Natural Science Foundation of China[41972134] ; National Natural Science Foundation of China[41930426] |
| WOS研究方向 | Energy & Fuels ; Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000559063200006 |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/97634]  |
| 专题 | 地质与地球物理研究所_兰州油气中心 |
| 通讯作者 | Wang, Xiaofeng |
| 作者单位 | 1.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, 229 Taibai North Rd, Xian 710069, Peoples R China 2.Xian Shiyou Univ, Coll Earth Sci & Engn, Xian 710065, Peoples R China 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Peng,Wang, Xiaofeng,Li, Xiaofu,et al. Competitive adsorption characteristics of CH4/C2H6 gas mixtures on model substances, coal and shale[J]. FUEL,2020,279:9. |
| APA | Liu, Peng,Wang, Xiaofeng,Li, Xiaofu,Zhang, Ting,Du, Guichao,&Liu, Wenhui.(2020).Competitive adsorption characteristics of CH4/C2H6 gas mixtures on model substances, coal and shale.FUEL,279,9. |
| MLA | Liu, Peng,et al."Competitive adsorption characteristics of CH4/C2H6 gas mixtures on model substances, coal and shale".FUEL 279(2020):9. |
入库方式： OAI收割
来源：地质与地球物理研究所
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