原油与硫酸盐热化学还原反应中有机硫化物的形成和分布  

Formation and distribution for organic sulfide on the system of crude oil and magnesium sulfate

作　　者：刘阳 岳长涛[2] 李术元[2] 宋鹤[2] 仇登可 

机构地区：[1]辽宁大唐国际阜新煤制天然气有限责任公司,辽宁阜新123000 [2]中国石油大学理学院,北京102249

出　　处：《化学工程师》2014年第6期31-35,共5页Chemical Engineer

基　　金：油气资源与探测国家重点实验室开放课题(201107)资助项目

摘　　要：本文利用高压釜反应装置,在高温高压含水条件下对吐哈原油与硫酸盐热化学反应体系(ThermochemicalSulfateReduction,简称TSR)进行了模拟实验研究。利用微库仑仪和气相色谱仪对反应后的气体进行分析,用库仑仪对油相的总含硫量进行测定,傅里叶离子回旋共振质谱仪(FT-ICR MS)对反应后的油相产物的总硫变化和油相硫化物的组成分布进行了分析。研究发现,随着反应温度的升高,气体H2S的含量逐渐增加。随着TSR反应程度的加深,油相产物中,具有较强热稳定性的噻吩类化合物的含量逐渐增加。FT-ICR MS鉴定出油相化合物中含硫化合物类型主要有S1、N1S1、O1S1、O2S1,其中S1类化合物占绝对优势,分析发现TSR反应使原油的油相产物存在噻吩类物质向苯并噻吩类转化的趋势。In this paper,thermal sulfate reduction was conducted in autoclave on the system of crude oil and magnesium sulfate under high temperature and pressure conditions.Properties of the gas-oil 2-phase products were analyzed by some advanced analytical methods including gas chromatography,microcoulometry and fourier transform ion cyclotron resonance mass spectrometry （FT-ICR MS）.It is showed that types of sulfur compounds in the oil phase identified by FT-ICR MS are mainly S1,N1S1,O1S1 and O2S1,in which S1 compounds is dominated.As the reaction temperature growing,the evolution process of organic sulfur compounds is original from thiophene series to the benzothiophene series gradually and then to dibenzothiophene series.

关 键 词：硫酸盐热化学反应 吐哈原油 傅里叶离子回旋共振质谱仪 有机硫化物 

分 类 号：TE133[石油与天然气工程—油气勘探]