矿物低温催化脂肪酸酯在重水和水中的反应  

Reaction of fatty acid ester catalyzed by minerals at low temperature in heavy water and water

作　　者：张在龙[1] 刘会平[1] 李波[1] 籍志凯[1] 雷宁[1] 

机构地区：[1]中国石油大学化学化工学院,山东东营257061

出　　处：《中国石油大学学报（自然科学版）》2008年第5期117-120,125,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金(40072052)

摘　　要：分别以重水和水为反应介质进行对比实验,通过氢、氘核磁共振、红外光谱以及气相色谱等检测手段,对矿物低温催化十八烷酸甲酯的反应过程进行研究。结果表明:在模拟地质条件下,十八烷酸甲酯在D2O介质中的水解过程伴有少量氢氘交换,且氘转移主要发生在—OH基团上;十八烷酸脱羧生烃产物分布以正构烷烃为主,没有产生有分支的饱和烃,十八烷酸脱羧生烃反应具有自由基反应机理的典型特征。The heavy water and water are chosen as the reaction medium separately to do contrast experiment. The reaction of fatty acid ester catalyzed by minerals at low temperature was investigated by means of HNMR, DNMR, FT-IR and GC. The resuits show that the hydrolysis of methyl stearate has a little H-D exchange and mainly on the --OH group under the simulated geological conditions. The products of decarboxylation of stearic acid are mainly normal alkanes. The branched saturated hydro- carbons aren＇t produced. It indicates that the hydrocarbon generation of stearic acid has characteristics of free radical reaction.

关 键 词：矿物低温催化 脂肪酸酯 水解及生烃反应 氢氘交换 自由基 

分 类 号：TE122.1[石油与天然气工程—油气勘探]