中国石油大学学报（自然科学版）2018，Vol.42Issue(1)：165-170,6.DOI:10.3969/j.issn.1673-5005.2018.01.021
催化重柴油加氢后的催化裂解性能
Study on catalytic cracking performance of FCC heavy diesel after hydrogenation
摘要
Abstract
The catalytic diesel cannot be used as diesel blending fraction even after hydrogenation due to its high aromatic content. In this work,thecatalytic cracking performance of FCC heavy diesel (density of 934.0 kg/m3,aromatic content of 72.06% and 2-ring aromatics content of 35.86%) before and after hydrogenation were investigated.The main aromatics in FCC heavy diesel are the 2-ring aromatics,which can be selectively transformed to naphthenoaromaticsvia hydrogenation and further cracked into aromatics in gasoline fraction and olefins in LPG through catalytic cracking. The results indicate that the cracking performance of hydro-treated diesel is substantially improved. The polycyclic aromatics are transformed to naphthen-ic hydrocarbons that can be easily cracking, and the conversion is 19.09% higher than the untreated diesel fraction. The gasoline yield is increased by 16.60% with high aromatic content (about 47.29%) and low olefin concentration (about 12.50%), which is a good high-octane gasoline blending component. Meanwhile, the LPG yield is increased up to 16.58%,in which the content of propylene and iso-butylene is 42.70% and 10.80%,respectively.关键词
催化重柴油/加氢/催化裂解/产物分布Key words
FCC heavy diesel/hydrogenation/catalytic cracking/product distribution分类
能源科技引用本文复制引用
张海娜,陈晓成,祝晓琳,王斌,许乃文,李春义..催化重柴油加氢后的催化裂解性能[J].中国石油大学学报（自然科学版）,2018,42(1):165-170,6.基金项目
石油化工联合基金项目(A类)(U1462205) （A类）
中央高校基本科研业务费专项(16CX06013A) （16CX06013A）
