The mechanism and kinetics of oil shale pyrolysis in the presence of water  

作　　者：Yue Ma Shuyuan Li 

机构地区：[1]State Key Laboratory of Heavy oil Processing,College of Science,China University of Petroleum,Beijing 102249,China

出　　处：《Carbon Resources Conversion》2018年第2期160-164,共5页碳资源转化（英文）

基　　金：We thank the following foundation for the financial support:the National Basic Research Program of China(973 programs,No.2014CB744302);Taishan Scholar Constructive Engineering Foun-dation of Shandong province,China(No.ts20120518).

摘　　要：The hydrous thermo-simulation experiments on oil shale sample from Liushuhe basin have been performed using autoclave.The mechanism and kinetics of oil shale pyrolysis were investigated.The formation mechanism of pyrolysates including retorting gas,oil and bitumen,were evaluated in the presence of saturated and unsaturated water,respectively.The results show that the physicochemical properties of water have greatly changed in high temperature and pressure.At the same time,water has three kinds of effect on the oil shale pyrolysis,including the protection of free radical,catalytic action and swelling.The pyrolysis temperature was carried out about 70
C earlier,and the generated processing of hydrocarbon would be easier under the aqueous.The consecutive first order reaction model involving bitumen as an intermediate product was used in the data analysis in order to determine the pyrolysis kinetic parameters.It was found that the apparent activation energy of kerogen pyrolysis was lower than bitumen pyrolysis.

关 键 词：Oil shale MECHANISM Free radicalreaction Carbocation reaction KINETICS Aqueous medium 

分 类 号：P61[天文地球—矿床学]