摘要
以某石化厂催化裂化装置为例,探究加氢尾油掺炼量对催化裂化产品分布及产品品质的影响,并对影响原因进行了分析。结果表明:掺炼加氢尾油可显著降低干气与油浆产量,加氢尾油掺炼量每增加1 t,油浆产量减少0.14 t,干气产量减少56 m^(3),汽油产量增加0.26 t;掺炼加氢尾油会使汽油组分芳烃含量减少,密度下降,馏出温度降低;随着加氢尾油掺炼量增加,产品液化石油气中C_(3)含量减少,C_(4)含量增加。这归因于加氢尾油的掺炼抑制了催化裂化深度反应的进行,减少了C_(3)及C_(3)以下成分和油浆等深度裂化产品的生成,增加了C_(4)及以上液体的收率,随着加氢尾油掺炼量增加,C_(3)和C_(4)组分含量的变化成为判断加氢尾油掺炼对催化裂化反应深度影响的依据。
This paper takes the catalytic cracking unit of a petrochemical industry as an example to explore the effects of blending hydrogenated tail oil on the distribution and quality of catalytic cracking products,and analyzes the reasons.The results showed that blending hydrogenated tail oil can significantly reduce the output of dry gas and oil slurry.Every increase of 1 ton of hydrogenated tail oil refining,the output of oil slurry decreases by 0.14 tons,dry gas decreases by 56 m^(3),and gasoline output increases by 0.26 tons.The blending of hydrogenated tail oil will reduce the aromatic hydrocarbon content in gasoline components,decrease the density of gasoline components,and lower the distillation temperature.As the blending amount of hydrogenated tail oil increases,the C_(3)content in the liquefied petroleum gas decreases and the C_(4)content increases.This is attributed to the fact that the blending of hydrogenated tail oil inhibits the deep reaction of catalytic cracking,reduces the generation of C_(3)and below components and deep cracking products such as slurry,and increases the yield of liquids above C_(4).As the blending amount of hydrogenated tail oil increases,C_(3)and C_(4)components become the boundary line for the impact of hydrogenated tail oil blending on the depth of catalytic cracking reaction.
作者
刘博文
王庆波
赵冲敏
李烨
Liu Bowen;Wang Qingbo;Zhao Chongmin;Li Ye(CNOOC Huizhou Petrochemical Co.,Ltd.,Huizhou,Guangdong 516082)
出处
《炼油技术与工程》
CAS
2024年第10期26-30,共5页
Petroleum Refinery Engineering
关键词
催化裂化装置
掺炼加氢尾油
原料油加工量
反应深度
产品分布
干气
油浆
汽油
catalytic cracking unit
blending hydrogenated tail oil
feedstock processing volume
reaction depth
product distribution
dry gas
oil slurry
gasoline
