Carbon dioxide and methane sorption in high volatile bituminous coals from Indiana, USA
Carbon dioxide and methane sorption in high volatile bituminous coals from Indiana, USA
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DOI：
10.1016/j.coal.2004.04.001
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发表时间：
2004-10-22
影响因子：
5.6
通讯作者：
Rupp, J
中科院分区：
文献类型：
--
作者：
Mastalerz, M;Gluskoter, H;Rupp, J
采用高压吸附等温线技术对来自印第安纳州几个煤层的煤样进行了CO2和CH 4吸附能力分析。煤的质量和岩相组成的煤进行了测定，以研究它们的关系的CO2和CH 4，可以吸附到煤的体积。在17 ℃和400 psi（类似于2.8 MPa）的温度下，煤可以吸附（在干燥无灰基础上）4 - 6.3 m3/ton（128-202 scf/ton）的CH 4和19.5-24.6 m3/ton（624 - 788 scf/ton）的CO2。在这些条件下的CO2/CH 4的比例范围从3.5到5.3，并随着压力的增加而降低。所研究的煤具有非常相似的煤阶（R.从0.48到0.62%），但不同的岩相组成，和CO2吸附量似乎是正相关的显微组分端部镜质体的含量。(C)2004 Elsevier B. V.保留所有权利。
Samples of coals from several coalbeds in Indiana were analyzed for CO2 and CH4 sorption capacity using a high-pressure adsorption isotherm technique. Coal quality and petrographic composition of the coals were determined to study their relationships to the volume of CO2 and CH4 that could be sorbed into the coal. At the temperature of 17 degreesC and 400 psi ( similar to 2.8 MPa), the coals can sorb (on dry ash-free basis) from 4 to 6.3 m(3)/ton (128-202 scf/ton) of CH4 and 19.5-24.6 m(3)/ton4 (624 to 788 scf/ton) of CO2. The ratio of CO2/CH4 at these conditions ranges from 3.5 to 5.3 and decreases with an increasing pressure for all coals. The coals studied are of a very similar coal rank (R. from 0.48 to 0.62%) but of varying petrographic composition, and CO2 sorption volumes appear to be positively correlated to the content of maceral telocollinite. (C) 2004 Elsevier B.V. All rights reserved.