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原油中石油酸的场解吸质谱表征
Study on the Characteristics of Carboxylic Acid in Crude Oil by Field Desorption-Mass Spectrometry
【Author】 WANG Shao-jun, QI Bang-feng, LING Feng-xiang,MA Bo (Fushun Research Institute of Petroleum and Petrochemicals, Fushun 113001 ,China)
【摘要】 <正> 石油酸,又名环烷酸,是石油中的天然有机酸,以不同的化学结构存在于石油及其馏分油中,主要由环烷酸和脂肪酸组成,并以环烷酸为主,一般占90%以上。环烷酸腐蚀是炼油工业最关心的问题。通常酸值大于0.5 mgKOH/g的原油在蒸馏等加工过程中就会产生严重的设备腐蚀,而且少量环烷酸盐还影响产品油的稳定性和品质。但环烷酸又是一种有重要应用价值的精细化工原料。降低加工过程中环烷酸的腐蚀,高效回收环烷酸,是很重要的。国外学者对一些原油及馏分油中羧酸的分布进行了较深入的研究。李勇志等分析了辽河原油中羧酸的分布及其结构组成;任晓光等对苏丹FulaNorth3B原油及馏份油中的环烷酸进行了分析和研究。
【Abstract】 The naphthenic acids in petroleum cause corrosion problem and degrade qualities of products during being processed. Detailed analyses of the acids are difficult due to their complicacy. A sample was analyzed by field desorption-mass spectrometry (FDMS) , and the components were characterizated on the basis of group type and carbon number distributions. It was found that the naphthenic acids in the sample are mainly composed of onering and two-ring naphthenic acids.
- 【会议录名称】 中国质谱学会第七届会员代表大会暨学术报告会论文集
- 【会议名称】中国质谱学会第七届会员代表大会暨学术报告会
- 【会议时间】2004-10
- 【会议地点】中国广西北海
- 【分类号】TE622;O657.63
- 【主办单位】中国质谱学会