FCC油浆窄馏分热转化性能的基础研究  

Thermal cracking performance of narrow fractions of FCC slurry

作　　者：袁迎[1] 赵加民 吴世逵[1] 梁朝林[1] 谢颖[1] Yuan Ying Zhao Jiamin Wu Shikui Liang Chaolin Xie Ying(College of Chemical Engineering, Guangdong University of Petrochemical Technology, Maoming, Guangdong 52500)

机构地区：[1]广东石油化工学院化学工程学院,广东省茂名市525000

出　　处：《炼油技术与工程》2016年第11期19-23,共5页Petroleum Refinery Engineering

基　　金：国家自然科学基金资助项目(21176050);FCC油浆窄馏分热转化性能的基础研究;青年项目;广东石油化工学院自然科学研究项目

摘　　要：为确定延迟焦化工业装置原料掺炼FCC油浆的上限值并解决炉管结焦问题,利用特制重质油热反应评价装置,对FCC油浆切割的窄馏分进行单独热裂解实验,考察FCC油浆窄馏分热加工行为;对FCC油浆与焦化原料进行不同掺炼比实验,考察其结焦倾向及产品分布。结果表明：导致加热炉炉管结焦的主要反应物为FCC油浆360-420℃窄馏分;460-500℃馏程范围的FCC油浆主要发生缩合反应,是增加焦炭产率的主要贡献物;对提供的典型油样,当油浆掺炼比在9%以下时,不会导致炉管大规模结焦。To solve the problem of upper limit of blending ratio and furnace tube coking when FCC slurry was blended into the coker feedstock,the thermal cracking performances of fractions were tested in a special heavy oil thermal evaluation pilot plant,and the thermal cracking behavior of FCC slurry was studied. The blended feedstocks of FCC slurry and coking feedstock at different ratios were tested to investigate their coking tendency and product distribution. The experimental results show that,the main reactant leading to furnace tube coking is 360 - 420 ℃ fraction of FCC slurry,and the 460 - 500 ℃ fraction of FCC slurry mainly undergoes condensation reaction,which is a major contributor to the increased coke yield. For the typical oil samples,no large-scale coking on furnace tubes will occur when the slurry blending ratio is lower than 9%.

关 键 词：FCC油浆 延迟焦化 窄馏分 结焦 掺炼 

分 类 号：TE624.32[石油与天然气工程—油气加工工程]