摘要
为满足国IV清洁汽油标准对车用汽油中硫质量分数的要求,采用中国石油天然气股份有限公司石油化工研究院开发的催化裂化汽油选择性加氢脱硫技术将一套10万t/a柴油加氢降凝装置改造成32万t/a催化裂化汽油选择性加氢脱硫装置。为了提高催化裂化汽油加氢脱硫的选择性,在本次改造中增设了催化裂化汽油分馏塔、预加氢反应器、冷氢箱等设施。改造后加氢脱硫装置的工业标定结果显示,催化裂化汽油的硫质量分数平均从339μg/g降到了64μg/g,烯烃质量分数从52.1%降到了46.3%,研究法辛烷值从92.0降到了91.2,仅仅损失0.8个单位。分析了催化裂化汽油加氢脱硫装置技术改造的特点、效果和存在的问题,可为国内其他类似装置的改造和建设提供经验和参考。
In order to decrease the sulfur mass fraction of gasoline product to satisfy the national emission standardⅣ,an existing 0. 1 Mt /a diesel hydrodewaxing unit was revamped to a 0. 32 Mt /a FCC gasoline selective hydrodesulfurization unit adopting FCC gasoline selective hydrodesulfurization technology developed by Petrochemical Research Institute of Petro China Company Limited. A gasoline fractionator,a pre-hydrotreating reactor and a hydrogen cold box were increased to improve FCC gasoline hydrodesulfurization selective. The performance test data show that the sulfur mass fraction in FCC gasoline is reduced from 339 μg / g to 64 μg / g,the olefin mass fraction is lowered from 52. 1% to 46. 3%,and the RON loss of the gasoline product is 0. 8. The analysis on the process revamping,performance test results and existing problems can be a reference for the revamping and construction of other similar units.
出处
《化学工程》
CAS
CSCD
北大核心
2014年第11期75-78,共4页
Chemical Engineering(China)
关键词
催化裂化汽油
加氢脱硫
改造
工艺特点
FCC gasoline
hydrodesulfurization
revamping
process characteristics
