摘要
针对国Ⅵ/京Ⅵ标准汽油,国内主流观点是建设烷基化装置生产无烯无芳的烷基化油,借助调和稀释予以达标.通过对烷基化技术、C4烃利用和国内石化资源市场情况的分析,烷基化油稀释路线生产国Ⅵ/京Ⅵ标准汽油应作为汽油质量升级的最后手段.根据某企业加工流程特点和生产状况,分析了汽油调和组分性质差异,通过合理匹配催化、重整汽油比例,调整催化汽油脱硫装置操作,重整汽油抽出芳烃产品,建设环境友好的异构化装置,改造MTBE装置用于生产异辛烷或ETBE,及汽油调和在线优化控制等方案,能够分阶段达到国ⅥA/ⅥB阶段标准汽油出厂要求.上述方案虽然较繁琐,但从"提质"和"管控"两方面入手,符合国内炼化行业"精细化"和"减油增化"要求,对国内炼化企业制定国Ⅵ汽油质量升级方案具有借鉴意义.
To meet the National Ⅵ gasoline standard, the mainstream view in China is to build an alkylation unit to produce alkylated oil with zero olefin or aromatics and then produce on-spec gasoline by dilution. Based on the analysis of alkylation technology, utilization of C 4 hydrocarbons and domestic petrochemical resource market, producing National Ⅵ/Beijing Ⅵ gasoline via alkylated oil dilution should be the last resort for gasoline quality upgrade. According to the characteristics and operation of the processing units in a refinery, this paper analyzes the differences in the properties of blending components, and introduces some schemes for producing National Ⅵ A/Ⅵ B gasoline stage by stage such as rationally adjusting the proportion of FCC gasoline and reformed gasoline, adjusting the operation of FCC gasoline desulfurization unit, building an environmentally friendly isomerization unit, revamping the MTBE unit to produce ETBE, and carrying out online optimization of gasoline blending. The above-mentioned schemes, though complicated, start from quality upgrade and control and conform to the demand of China's refining industry for refined management, reduction in oil products and increase in chemical products, providing reference for domestic refining enterprises to develop quality upgrade schemes for National Ⅵ gasoline.
作者
南晓钟
赵志飞
Nan Xiaozhong;Zhao Zhifei(PetroChina North China Petrochemical Company, Renqiu, Hebei, 062552)
出处
《石油化工设计》
CAS
2019年第3期1-6,I0001,共7页
Petrochemical Design
关键词
国Ⅵ/京Ⅵ标准汽油
汽油质量升级
非烷基化路线
异构化
乙基叔丁醚
方案
national Ⅵ/Beijing Ⅵ standard
gasoline quality upgrade
non-alkylation route
isomerization
ethyl tertiary butyl ether/ETBE
scheme
