收稿日期: 2014-02-20
修回日期: 2014-03-25
网络出版日期: 2015-01-15
基金资助
国家自然科学基金(41372213,41030422,40972131)、中国科学院战略性先导科技专项(XDA05030100)和国家科技重大专项(2011ZX05060-005,2011ZX05039-004)资助
Composition and adsorptivity of shales in coal-bearing rock strata of Huainan coalfield
Received date: 2014-02-20
Revised date: 2014-03-25
Online published: 2015-01-15
卜红玲 , 琚宜文 , 王国昌 , 房立志 , 颜志丰 , 李清光 . 淮南煤田煤系泥页岩组成特征及吸附性能[J]. 中国科学院大学学报, 2015 , 32(1) : 82 -90 . DOI: 10.7523/j.issn.2095-6134.2015.01.014
Based on qualitative and quantitative analyses of organic and mineral in shales, the composition geological characteristics and adsorptivity of shales in coal-bearing strata were systematically studied in Huainan mining area. Results are given below, 1) TOC content of shale in study area varies between 0.13% and 8.58% with the average content of 1.98%; the organic matter type is mainly Ⅲ and a little Ⅱb; thermal maturity of organic matter ranges from 0.61% to 1.48% with the average of 0.93%; and mineral composition of shale mainly consists of clay minerals and quartz and kaolinite and mixed layer illite/smectite (I/S) are the staple clay types. 2) Adsorption capacity increases with TOC content, and the maximum adsorption amount per unit TOC increases with Ro value; and the adsorptivity of clay mineral is associated with its type. 3) Brittle deformed shale and brittle-ductile deformed shale have different adsorption isotherm characteristics.
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