Experimental Study on the Generation of Low Molecular Organic Acids from Mudstone by Hydrous Pyrolysis
详细信息
- 责任者：Xue Lian (School of Life Science and Chemical Engineering ; Huaiyin Institute of Technology ; Huaian 223000 ; China) ; Li Dong
- 刊名：Geochimica
- 出版年：2011
- 卷期：40(4)
- 关键词：泥岩 ; mudstone ; 水解作用 ; hydrolysis
- 页码：p.381-386
- 图表：illus., 1 table, 11 refs.
- 分类号：0600
- issnNo：ISSN0379-1726
- isbnNo：CN44-1398/P
摘要
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.