催化裂化汽油中芳烃含量随反应条件及催化剂的变化规律  

STUDY ON THE VARIATION OF AROMATICS CONTENT IN FCC NAPHTHA WITH THE CHANGE OF REACTIONCONDITIONS AND CATALYSTS

作　　者：邓景辉[1] 任飞[1] 唐立文[1] 朱玉霞[1] 

机构地区：[1]中国石化股份有限公司石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2007年第11期10-14,共5页Petroleum Processing and Petrochemicals

基　　金：国家重点基础研究基金973课题"石油资源的分子鉴别和转化规律认识"(2006CB202501)资助

摘　　要：首先将气相色谱法测定汽油馏分的芳烃含量和行业标准方法SH/T0693分析结果进行关联,验证了气相色谱法的可信度。在实验室小型固定流化床装置上,考察了裂化产物汽油馏分中芳烃含量随反应条件及催化剂的变化规律。结果表明,通过调节剂油比提高转化率时,苯含量增加较小;反应温度提高,汽油馏分中的苯含量显著提高;在催化剂中添加丙烯助剂时,在增产丙烯的同时,汽油中苯含量显著增加。The aromatics content of FCC naphtha was analyzed by gas chromatography method,and the results were correlated with the evaluation was carried out on a small scale industry standard method （SH/T0693） quite well. Catalyst fixed fluidized bed unit, the variations of aromatics contents in the gasoline fraction with the changes of reaction conditions and various catalysts were summarized. Although increase catalyst to oil ratio and increase reaction temperature were the two usual approaches for raising conversion, the results showed that their effects on the benzene content of gasoline fraction were different, the latter had significant influence, but the former had only a little influence. When additive for enhancing propylene yield was added in the catalyst system, the benzene content of FCC naphtha and propylene yield increased simultaneously.

关 键 词：催化裂化 汽油 苯 芳烃 

分 类 号：TE622[石油与天然气工程—油气加工工程]