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Quantitative determination of organic adsorption capacity in the Palaeozoic shales from South China

机译：南方古生代山区有机吸附能力的定量测定

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摘要

In this study, the methane adsorption capacity of kerogen isolated from the Cambrian, Silurian, and Permian shales and the impact of soluble organic matter (SOM) on the adsorption capacity of these shales were investigated. The results reveal that 1) the adsorption capacity of kerogen varies in a broad range, from 14.48 to 23.22 cm(3)/g for the Cambrian kerogens, from 15.50 to 36.06 cm(3)/g for the Silurian kerogens, and from 10.71 to 11.15 cm(3)/g for the Permian kerogens; 2) the kerogen adsorption accounts for 33.67-70.23% of the total adsorption capacity of these Palaeozoic extracted shales, demonstrating that kerogen is the primary adsorbing substance in shales; 3) the adsorption isotherms of kerogen in highly mature Cambrian and Silurian shales are similar to those of Triassic coal, while the isotherms of kerogen in the relatively immature Permian shales are similar to those of the immature oil shales; and 4) the SOM demonstrates a significant impact on the adsorption capacity of shales as the removal of SOM can cause a maximum increase of 34.29% or a decrease of 23.36% in the total adsorption capacity of shales. However, there is no clear understanding of the impact of SOM on the methane sorption of shales.
机译：在这项研究中，研究了从寒武纪，硅藻土和二叠纪的Kerogen的甲烷吸附能力以及可溶性有机物（SOM）对这些Shales的吸附能力的影响。结果表明，1）基因的吸附能力在较宽的范围内变化，从14.48至23.22厘米（3）/ g为寒武纪角，从15.50〜36.06厘米（3）/ g为Silurian Kerogens，以及10.71对于PEMIAN Kerogens来到11.15厘米（3）/ g; 2）Kerogen吸附占这些古生代提取的Shales总吸附能力的33.67-70.23％，表明Kerogen是Shales中的主要吸附物质; 3）高度成熟的寒武纪和硅藻土中皮原的吸附等温线类似于三叠系煤的吸附等温，而相对未成熟的二叠纪神社中的角化等温度与未成熟油的等温; 4）SOM证明了由于SOM的去除可能导致HALES的总吸附容量的最大增加34.29％或降低23.36％的最大增加，因此对Shales的吸附能力产生重大影响。然而，对SOM对Shales的甲烷吸附的影响并不清楚了解。

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  • 来源
    《Energy Exploration & Exploitation》 |2021年第3期|779-796|共18页
  • 作者

    Wang Sibo; Song Zhiguang; Xia Jia; Gao Yuan; Wang YaoPing; Cao Taotao;

  • 作者单位

    Guangdong Ocean Univ Sch Chem & Environm Sci Zhanjiang 524088 Peoples R China|Chinese Acad Sci Guangzhou Inst Geochem State Key Lab Organ Geochem Beijing Peoples R China|Guangdong Ocean Univ Shenzhen Res Inst Shenzhen Peoples R China;

    Chinese Acad Sci Guangzhou Inst Geochem State Key Lab Organ Geochem Beijing Peoples R China;

    Guangdong Ocean Univ Sch Chem & Environm Sci Zhanjiang 524088 Peoples R China;

    Guangdong Ocean Univ Sch Chem & Environm Sci Zhanjiang 524088 Peoples R China;

    Guangdong Ocean Univ Sch Chem & Environm Sci Zhanjiang 524088 Peoples R China;

    Hunan Univ Sci & Technol Hunan Prov Key Lab Shale Gas Resource Utilizat Xiangtan Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Kerogen; soluble organic matter; methane adsorption capacity; Palaeozoic shales of southern China; shale gas;

    机译：Kerogen;可溶性有机物;甲烷吸附能力;中国南方的古生代Hales;页岩气;

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