Thermal simulation of the formation and evolution of coalbed gas
文献类型：期刊论文
| 作者 | Duan, Y; Wu, BX; Zheng, CY; Wang, CY |
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2005-12-01 |
| 卷号 | 50页码:40-44 |
| 关键词 | Coalbed Gas Generation And Evolution Pyrolysis Peat Coal Heating Rate |
| ISSN号 | 1001-6538 |
| DOI | 10.1360/98zk0002 |
| 文献子类 | Article |
| 英文摘要 | Thermal simulation experiment of gas generation from the peat and the coals were performed using the high temperature and pressure apparatus, at temperature ranging from 336.8-600 degrees C, a pressure of 50MPa and two heating rates of 20 degrees C/h and 2 degrees C/h, and the evolution and formation of coalbed gas components were studied. Results show that for the coals, the gaseous products are mainly composed of hydrocarbon gases. However, for the peat the content of hydrocarbon gases in gaseous products is lower than that of non-hydrocarbon components. In the generated hydrocarbon gases methane is predominant and heavy hydrocarbon gases (C2-5) are present in small amount. Meanwhile, carbon dioxide (CO2) predominates the generated non-hydrocarbon gases, and hydrogen (H-2) and sulfurated hydrogen (H2S) are existent in trace amount. It is also observed that temperature is the main factor controlling the evolution of coalbed gas generation. With increasing vitrinite reflectance, methane rapidly increases, CO2 sightly increases, and C2-5 hydrocarbons first increase and then decrease. The peat and Shanxi formation coal have a higher generative potential of coalbed gases than coals and Taiyuan formation coal, respectively, reflecting the effect of the property of organic matter on the characteristics of coalbed gas component generation. In this study, it is found that low heating rate is favorable for the generation of methane, H-2 and CO2, and the decomposition Of C2-5 hydrocarbons. This shows that heating time plays an important controlling role in the generation and evolution of coalbed gases. The results obtained from the simulation experiment in the study of coalbed gases in natural system are also discussed. |
| WOS关键词 | GENERATION ; GEOCHEMISTRY |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| WOS记录号 | WOS:000235738200006 |
| 出版者 | SCIENCE PRESS |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/65534]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Duan, Y |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Gas Geochem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Duan, Y,Wu, BX,Zheng, CY,et al. Thermal simulation of the formation and evolution of coalbed gas[J]. CHINESE SCIENCE BULLETIN,2005,50:40-44. |
| APA | Duan, Y,Wu, BX,Zheng, CY,&Wang, CY.(2005).Thermal simulation of the formation and evolution of coalbed gas.CHINESE SCIENCE BULLETIN,50,40-44. |
| MLA | Duan, Y,et al."Thermal simulation of the formation and evolution of coalbed gas".CHINESE SCIENCE BULLETIN 50(2005):40-44. |
入库方式： OAI收割
来源：地质与地球物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。