Methane generation from low-maturity coals and shale source rocks at low temperatures (80-120 degrees C) over 14-38 months
文献类型：期刊论文
| 作者 | Ma, Xiangxian2,3; Liu, Bei2; Brazell, Corey2; Mastalerz, Maria1; Drobniak, Agnieszka1; Schimmelmann, Arndt2 |
| 刊名 | ORGANIC GEOCHEMISTRY
 |
| 出版日期 | 2021-05-01 |
| 卷号 | 155页码:11 |
| 关键词 | Methane Natural gas Carbon dioxide Catalysis Heating experiments Coal Shale |
| ISSN号 | 0146-6380 |
| DOI | 10.1016/j.orggeochem.2021.104224 |
| 英文摘要 | This study contributes long-term (14 to 38 months) experimental evidence for geocatalytically mediated methanogenesis in immature to early mature shale and coal source rocks at temperatures from 80 to 120 degrees C. Borosilicate glass tubes with pre-outgassed coal and shale source rock chips and water were sealed under vacuum, sterilized, heated isothermally, and finally opened in connection with a vacuum line where headspace gases methane (CH4) and carbon dioxide (CO2) were collected. The possibility of admitting pre-existing CH4 from closed pores into product gases during heating experiments was evaluated by comparative ball milling of original and heated rock chips, followed by quantitation of released gases with a novel closed-circuit laser-based SARAD RTM2200 gas detector system with sub-mu mol sensitivity. The yields of produced CH4 from individual source rocks were corrected by subtracting the amounts of pre-existing CH4 from formerly closed pores in original source rocks that had leaked during long-term heating. Different shales and coals express contrasting propensities to geocatalytically generate CH4 and CO2, with CH4 yields ranging from 0.1 to 5.5 mu mol g(-1) total organic carbon (TOC). CH4 yields from two petrographically different samples of Springfield Coal with comparable thermal maturity suggest that liptinite expresses a far higher propensity for methanogenesis, but liberates less CH4 than vitrinite. Shale from the Second White Specks Formation generated approximately 10 times more CH4 than New Albany Shale per g of TOC, further suggesting complex controls on CH4 generation during catalytic methanogenesis. Higher temperature can enhance the activities of catalytic methanogenesis. The extrapolation of laboratory-based reaction rates to natural conditions in organic-rich buried sediments suggests that geocatalytic methanogenesis can be fast enough in some source rocks to generate economically sizeable gas plays from immature to early mature source rocks over geologic time. (C) 2021 Elsevier Ltd. All rights reserved. |
| WOS关键词 | TRANSITION-METAL CATALYSIS ; ORGANIC-MATTER ; HYDROUS-PYROLYSIS ; WOODFORD SHALE ; IMMATURE OILS ; GAS ; PETROLEUM ; HYDROCARBON ; KEROGEN ; MINERALS |
| 资助项目 | U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division[DE-SC0006978] ; National Natural Science Foundation of China[41872141] ; China Scholarship Council |
| WOS研究方向 | Geochemistry & Geophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000647678500003 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division ; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Scholarship Council ; China Scholarship Council |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/101228]  |
| 专题 | 地质与地球物理研究所_兰州油气中心 |
| 通讯作者 | Liu, Bei |
| 作者单位 | 1.Indiana Univ, Indiana Geol & Water Survey, Bloomington, IN 47405 USA 2.Indiana Univ, Dept Earth & Atmospher Sci, Bloomington, IN 47405 USA 3.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Petr Resources, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Xiangxian,Liu, Bei,Brazell, Corey,et al. Methane generation from low-maturity coals and shale source rocks at low temperatures (80-120 degrees C) over 14-38 months[J]. ORGANIC GEOCHEMISTRY,2021,155:11. |
| APA | Ma, Xiangxian,Liu, Bei,Brazell, Corey,Mastalerz, Maria,Drobniak, Agnieszka,&Schimmelmann, Arndt.(2021).Methane generation from low-maturity coals and shale source rocks at low temperatures (80-120 degrees C) over 14-38 months.ORGANIC GEOCHEMISTRY,155,11. |
| MLA | Ma, Xiangxian,et al."Methane generation from low-maturity coals and shale source rocks at low temperatures (80-120 degrees C) over 14-38 months".ORGANIC GEOCHEMISTRY 155(2021):11. |
入库方式： OAI收割
来源：地质与地球物理研究所
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