Even-carbon predominance of Monomethyl branched alkanes in Humic coal from Junggar Basin,NW China |
| |
Authors: | Cheng Qingsong Zhang Min Huang Guanghui |
| |
Institution: | 1.College of Resources and Environment, Yangtze University, Wuhan, 430100, China ;2.Key Laboratory of Exploration Technology for Oil & Gas Research (Yangtze University), Ministry of Education, Wuhan, 430100, China ; |
| |
Abstract: | A series of Monomethyl branched alkanes compounds were detected between nC14–nC36, in immature and low maturity Jurassic humic coal, Junggar basin. 2-methyl alkanes and 3-methyl alkanes accounted for the vast majority of the compounds. It is worth noting that the 2-methyl alkanes in the humic coal samples show an obvious distribution of even carbon predominances rarely reported in the literature. The results show that with the increase of Pr/Ph (pristane/phytane), the even carbon dominance of 2-methyl alkanes is more obvious, while the odd carbon number distribution of 3-methyl alkanes is weakened. As Pr/Ph increases in the humic coal, the relative content of the hopanes increased, while the relative content of 2-methyl alkanes and 3-methyl alkanes increases first and then decreases. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|