油页岩临界热解中间体的结构表征  

Structural Characterization of Critical Intermediate During the Oil Shale Pyrolysis

作　　者：黄越[1,2] 洪文鹏[1] 丁皓姝[1] 高朔[1] 董花花 李术元 Huang Yue;Hong Wenpeng;Ding Haoshu;Gao Shuo;Dong Huahua;Li Shuyuan(School of Energy and Power Engineering,Northeast Electric Power University,Jilin 132012,China;School of Civil Engineering and Architecture,Jilin Technology College of Electronic Information,Jilin 132021,China;State Key Laboratory of Heavy Oil Processing,China University of Petroleum(Beijing),Beijing 102249,China)

机构地区：[1]东北电力大学能源与动力工程学院,吉林132012 [2]吉林电子信息职业技术学院建工学院,吉林132021 [3]中国石油大学(北京)重质油国家重点实验室,北京102249

出　　处：《燃烧科学与技术》2024年第5期489-496,共8页Journal of Combustion Science and Technology

基　　金：吉林省科技发展计划资助项目(20220203094SF).

摘　　要：为探究抚顺油页岩有机质热解机理,以其热解产物抽提率最高时获得有机体——临界热解中间体为研究对象,采用核磁共振(NMR)、傅里叶红外光谱(FTIR)、X射线光电子能谱(XPS)、快速裂解气相色谱质谱联用(Py-GC/MS)技术对临界热解中间体进行了原子结构表征,提出了该热解中间体平均分子结构模型的分子式C_(370)H_(570)O_(29)N_(4)S.结果表明:临界热解中间体的碳骨架结构主要由脂肪族碳构成,脂碳率与芳碳率分别为74.7%和25.3%,脂肪烷烃链的支化度Bi为4.31%,亚甲基长链的平均碳数约为18个;芳香碳以单环形式为主,芳香环的平均取代程度为0.4左右;杂原子主要以羰基氧、吡咯氮和噻吩硫的赋存形式存在.A critical intermediate with the greatest organic extraction yield during the pyrolysis of Fushun oil shale was investigated in this work.The structural characteristics of its atoms were analyzed by means of NMR,FTIR,XPS,and Py-GC/MS.According to the results,a new structural formula of the critical pyrolysis intermediate average model(C_(370)H_(570)O_(29)N_(4)S)was introduced.The results show that the skeleton structure of critical pyrolysis intermediate mainly consists of aliphatic carbon atoms.The contents of aliphatic and aromatic carbon are 74.7%and 25.3%,respectively.The branched degree of aliphatic chain Bi is 4.31%,and the average length of a methylene chain is about 18.The aromatic carbon atoms are mainly in the form of monocyclic aromatics,and the substitutive degree of aromatic ring is about 0.4.Carbonyl,pyrrole,and thiophene are the main forms of heteroatomic compounds in the critical pyrolysis intermediate.

关 键 词：油页岩 热解中间体 结构表征 分子式 

分 类 号：TE662[石油与天然气工程—油气加工工程]