摘要
在高压反应釜中临氢条件下研究了NiMoS/γ-Al2O3催化辛烯-1与H2S的反应,考察了反应温度、H2S含量和烯烃体积分数对反应产物的影响,对反应产物进行GC-MS分析,探讨了辛烯-1与H2S的反应机理。结果表明,辛烯-1与H2S反应主要生成硫醇类和硫醚类化合物,辛烯-1本身还会发生加氢饱和反应和双键迁移异构化反应。随着反应温度升高,反应产物中的硫醇硫和总硫的量均逐渐减少,同时促进了辛烯-1的加氢饱和反应。反应体系中H2S的含量越高,产物中硫醇硫和硫醚硫的含量越大;而且H2S还会促进辛烯-1的双键迁移异构化反应,抑制辛烯-1的加氢饱和反应。随着反应体系中辛烯-1体积分数增大,产物中总硫的含量不断增大,而硫醇硫的含量先增大后减小,此外,辛烯-1的异构化产物和加氢饱和产物也会随之不断增多。
The reaction between octene-1 and H2S was studied over NiMoS/γ-Al2O3 catalyst in the high pressure autoclave. The effects of reaction temperature, H2S content and volume fraction of octene-1 on the reaction between octene-1 and H2S under the presence of H2 were investigated. The composition of the product was analyzed by GC-MS, and the reaction mechanism was discussed. The results showed that the sulfur compounds including mercaptans and thioethers were formed in the reaction between octene-1 and H2S, and that hydrogenation and double bond isomerization reactions of octene-1 occurred. The contents of mercaptan sulfides and total sulfides in the product both increased with the reaction temperature rising, meanwhile the hydrogenation reaction of octene-1 could be promoted. The contents of mereaptan sulfides and thioether sulfides in the reaction system increased with the H2 S content increasing; in addition, the isomerization of reaction of octene-1 could be promoted and the hydrogenation of octene-1 was inhibited. As the octene-1 volume fraction increased, the contents of total sulfides increased while the contents of mercaptan sulfides first increased and then decreased, moreover, the products of isomerization and hydrogenation reaction of octene-1 both increased.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2012年第5期744-749,共6页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
国家自然科学基金项目(21076231)
山东省自然科学基金项目(2009ZRA05107)资助
关键词
辛烯-1
硫化氢
硫醇
硫化物
反应机理
octene-1
hydrogen sulfide
mercaptan
sulfide
reaction mechanism
