提高石脑油综合利用效率的措施及优化方案  

MEASURES AND OPTIMIZATION SCHEME FOR IMPROVING COMPREHENSIVE UTILIZATION EFFICIENCY OF NAPHTHA

作　　者：张方方 张新宽[2] 于中伟[2] Zhang Fangfang;Zhang Xinkuan;Yu Zhongwei(SINOPEC Engineering Incorporation Co.Ltd.,Beijing 100101;SINOPEC Research Institute of Petroleum Processing)

机构地区：[1]中国石化工程建设有限公司,北京100101 [2]中国石化石油化工科学研究院

出　　处：《石油炼制与化工》2021年第5期16-21,共6页Petroleum Processing and Petrochemicals

基　　金：国家重点研发计划项目(2017YFB0306504)。

摘　　要：作为生产芳烃和烯烃产品的重要原料,石脑油馏分的综合利用是优化炼化一体化加工方案的重中之重。通过分析石脑油的族组成及轻、重石脑油的组成变化对芳烃和烯烃生产的影响,优化石脑油的加工方案,为进一步提高石脑油资源综合利用水平提供思路。用关键组分来控制分离精度,代替传统的馏程控制,将石脑油进行烷烃正构、异构分离,特别是将轻石脑油进行烷烃正构、异构分离,正构轻石脑油送至乙烯装置作原料对乙烯及总烯烃收率的提高更为有利。调整重整装置的进料组成,提高芳烃收率,实现增产芳烃产品的目的。上述措施对优化炼化一体化原油加工方案、提高石脑油资源综合利用更为有效。As an important raw material for the production of aromatics and light olefins,the comprehensive utilization of naphtha is the most important task in the optimization of integrated refining and chemical scheme.By analyzing the influence of naphtha group composition and the change of light and heavy naphtha composition on the production of aromatics and olefin,the processing scheme of naphtha was optimized,and some suggestions were put forward to improve the comprehensive utilization level of naphtha resources.When iso-alkanes was separated from naphtha,especially from light naphtha,it was more favorable to increase the yield of ethylene and total olefin for ethylene plant using the naphtha rich in normal alkanes as raw material.The separation accuracy of naphtha fractions was controlled by key components instead of traditional distillation range control,and the fractions composed of different groups were sent to different production units for further processing.The utilization scheme of light naphtha was further optimized through the application of normal iso-alkanes separation technology of light naphtha.By adjusting the feed composition of the reforming unit,the aromatics yield was increased.The above measures are more effective in optimizing the integrated refining-chemical scheme and improving the comprehensive utilization of naphtha resources.

关 键 词：石脑油 炼化一体化 重整装置 分馏 调整组成 

分 类 号：TE626.9[石油与天然气工程—油气加工工程]