High-Pressure Methane Sorption on Dry and Moisture-Equilibrated Shales
High-Pressure Methane Sorption on Dry and Moisture-Equilibrated Shales
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干燥和水分平衡页岩上的高压甲烷吸附
DOI：
10.1021/acs.energyfuels.6b02999
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发表时间：
2017-01
期刊：
影响因子：
5.3
通讯作者：
Bernhard M. Krooss
中科院分区：
文献类型：
--
作者：
Feng Yang;Congjiao Xie;Zhengfu Ning;Bernhard M. Krooss
采集了四川盆地古生代页岩高压甲烷吸附等温线。在39°C和高达25 MPa的条件下，对不同含水量（干燥、相对湿度为33%、53%、75%和97%）的页岩进行了过量吸附测量。在24°C时收集水分吸收等温线，并采用Guggenheim-Anderson-de Boer （GAB）模型进行参数化。研究了有机质丰度、矿物组成和孔隙结构特征对水吸收和甲烷吸附行为的影响。探讨了湿平衡页岩甲烷吸附能力下降的机理。页岩的吸水主要受粘土矿物控制，并与粘土矿物含量呈正相关。页岩的吸水等温线可以近似表示为各个粘土矿物在质量分数基础上的等温线之和。这些页岩的甲烷吸附能力受TOC含量的控制。
High-pressure methane sorption isotherms were collected on selected Paleozoic shales from the Sichuan Basin. Excess sorption measurements were performed on shales with varied water content (dry, moisture equilibrated at 33%, 53%, 75%, and 97% relative humidities) at 39 °C and up to 25 MPa. Water uptake isotherms were collected at 24 °C and parametrized by the Guggenheim–Anderson–de Boer (GAB) model. The effect of organic richness, mineral compositions, and pore structure characteristics on water uptake and methane sorption behavior has been investigated. The mechanism responsible for the decrease in methane sorption capacity of moisture-equilibrated shales is discussed. Water uptake of shales is primarily controlled by clay minerals, and shows a positive correlation with clay mineral content. Water sorption isotherms of shales can be approximately expressed as the sum of the isotherms of individual clay minerals on a mass-fraction base. Methane sorption capacity of these shales is controlled by TOC conten...
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影响因子：
5.3
作者：
A. Mccutcheon;W. A. Barton
通讯作者：
A. Mccutcheon;W. A. Barton
影响因子：
2.9
作者：
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影响因子：
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作者：
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通讯作者：
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影响因子：
2.2
作者：
R. T. Martin
通讯作者：
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影响因子：
7.4
作者：
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