石油化工2025，Vol.54Issue(8)：1093-1098,6.DOI:10.3969/j.issn.1000-8144.2025.08.005
硫化物在原油蒸汽裂解过程中的分布及影响
Distribution and influence of sulfides in crude oil steam cracking process
郑雄高 1赫荣杰 1石莹 2蒋冰 2周丛 2王国清2
作者信息
- 1. 中国石化海南炼油化工有限公司,海南 儋州 578001
- 2. 中石化(北京)化工研究院有限公司,北京 100013
- 折叠
摘要
Abstract
Using CS2 as a model sulfide,the effect of sulfide on naphtha steam cracking process was investigated.The sulfur distribution in cracking gas and cracking tar was analyzed and compared with crude oil steam cracking.The experimental results showed that the addition of trace sulfides(with a content less than 2 000 mg/kg)to naphtha had little effect on ethylene yield,but gradually reduced the yields of propylene and butadiene.With the increase of sulfur content in naphtha,the sulfur content in cracking gas and cracking tar increases,and 40%-60%(w)of the sulfur in the raw materials enters the cracking gas.After crude oil steam cracking,41.3%(w)of the sulfur element in crude oil enters the cracking gas,and 54.8%(w)of the sulfur element enters the cracking tar oil.Compared with the steam cracking of naphtha,the amount of sulfur entering the gas phase decreases,while the amount of sulfur entering the liquid phase increases.The main component of sulfides in crude oil cracking gas is H2S,accounting for more than 95%(w),the content of other sulfides is below 20 mg/kg,and CS2 accounts for about 0.1%(w)of all sulfides in cracking gas.关键词
硫化物/原油/石脑油/蒸汽裂解/烯烃Key words
sulfide/crude oil/naphtha/steam cracking/olefin分类
化学化工引用本文复制引用
郑雄高,赫荣杰,石莹,蒋冰,周丛,王国清..硫化物在原油蒸汽裂解过程中的分布及影响[J].石油化工,2025,54(8):1093-1098,6.
