| 泥岩有水热解产生低分子量有机酸实验研究 |
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| 引用本文： | 薛莲,李东,刘建平,陈传平.泥岩有水热解产生低分子量有机酸实验研究[J].地球化学,2011(4):381-386. |
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| 作者姓名： | 薛莲 李东 刘建平 陈传平 |
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| 作者单位： | [1]淮阴工学院 生命科学与化学工程学院, 江苏 淮安 223000 [2]华中师范大学 化学学院, 湖北 武汉 430079 |
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| 摘 要： | 直接采用泥岩岩屑进行有水热解,测定实验后水溶液中几种常见低分子量有机酸.结果表明,在实验的水溶液中检测到了丰富的低分子量有机酸,组成上主要为一元羧酸,其中又以乙酸占优势.讨论了不同热解条件对有机酸产率以及组成的影响.实验结果表明,有机酸总量随加热温度和时间增加而增加,并且溶液中不同有机酸相对组成也发生变化.当温度高于1...
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| 关 键 词： | 泥岩 低分子量有机酸 有水热解 影响因素 |
Experimental study on the generation of low molecular organic acids from mudstone by hydrous pyrolysis |
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| XUE Lian,LI Dong,LIU Jian-ping CHEN Chuan-ping.Experimental study on the generation of low molecular organic acids from mudstone by hydrous pyrolysis[J].Geochimica,2011(4):381-386. |
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| Authors: | XUE Lian LI Dong LIU Jian-ping CHEN Chuan-ping |
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| Institution: | 1. School of Life Science and Chemical Engineering, Huaiyin Institute of Technology, Huaian 223000, China;2. School of Chemistry, Huazhong Normal University, Wuhan 430079, China |
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| Abstract: | Hydrous pyrolysis of the mudstone cutting was carried out and several common low molecular organic acids were measured in the experimental aqueous solution. The results showed that abundant low molecular organic acids were detected in the aqueous solutions, which were dominated by monocarboxylic acids, especially acetic acid. The influences of different experimental conditions on yield and composition of organic acids were discussed. The results showed that yield of total organic acids increased with the heating temperature and time, and relative compositions of different organic acids in solution also changed. When the heating temperature was higher than 100 ℃, parts of the organic acids, mainly including oxalic acid and acetic acid, began to decarboxylate. After the heating time was over 240 hours （10 days）, the yield of organic acids had no obvious increase. pH≥9 of aqueous solution could reduce the loss of low molecular organic acids and promote the formation of organic acids during pyrolysis. |
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| Keywords: | mudstone low molecular organic acids hydro-pyrolysis influence |
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