摘要
采用中间基蜡油原料在串联一次通过流程下考察后精制反应温度对加氢裂化产物分布和性质的影响,并进行反应热力学计算。结果表明:在320~385℃范围内,后精制反应温度对产物分布影响不大,提高后精制反应温度对改善喷气燃料烟点、柴油十六烷指数和尾油BMCI有利,但产品溴指数和硫含量均相应升高,反应热力学数据表明高温不利于烯烃加氢饱和反应和硫醇生成反应,推测烯烃和硫化氢在试验装置的低温系统中生成硫醇是产品硫含量增加的主要原因。
The effect of post-refining reaction temperature on the distribution and properties of hydrocracking products was investigated by using the intermediate base VGO in single stage once-through hydrocracking process,and the reaction thermodynamic data was calculated.The results showed that in the range of 320-380℃,the post-refining reaction temperature had little effect on product distribution,and the increase of post-refining reaction temperature was beneficial to the improvement of smoke point of jet fuel,cetane index of diesel and BMCI of tail oil,however,the bromine index and sulfur content of the product increased correspondingly.Thermodynamic data of reaction showed that high temperature was unfavorable to the reaction of olefin hydrogenation saturation and mercaptan formation,therefore it was inferred that the formation of mercaptan from olefin and hydrogen sulfide in the low temperature system of the test facility was the main reason for the increase of sulfur content in the product.
作者
莫昌艺
赵广乐
任亮
赵阳
胡志海
Mo Changyi;Zhao Guangle;Ren Liang;Zhao Yang;Hu Zhihai(SINOPEC Research Institute of Petroleum Processing Co.,Ltd.,Beijing 100083)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2023年第11期16-21,共6页
Petroleum Processing and Petrochemicals
基金
中国石油化工股份有限公司合同项目(118022-3)。
关键词
后精制
加氢裂化
柴油
喷气燃料
硫醇
反应热力学
post-refining
hydrocracking
diesel
jet fuel
mercaptan
reaction thermodynamics
