MCM-22/REHY催化剂上的FCC汽油改质  

Upgrading of FCC gasoline over MCM-22/REHY catalyst

作　　者：刘盛林[1] 陈福存[1] 安杰[1] 李宏冰 徐龙伢[1] 

机构地区：[1]中国科学院大连化学物理研究所,辽宁大连116023 [2]中国石油抚顺分公司,辽宁抚顺113008

出　　处：《工业催化》2005年第7期16-20,共5页Industrial Catalysis

基　　金：国家973计划项目(2003CB615802);中国科学院知识创新工程领域前沿项目(DICPK2003D3)

摘　　要：采用USY、REY和REHY分子筛为催化剂,在固定流化床上进行了催化裂化(FCC)汽油改性试验。结果表明,REHY催化剂表现出较好的芳构化和异构化性能。在反应温度400℃、液态汽油空速2h-1和反应时间15min条件下,质量分数为5%的MCM-22对REHY催化剂起到很好的助催作用,液体收率达94.4%,而添加相同量的ZSM-5时,液体收率仅为90.46%;两者的异构化产物选择性和芳烃收率差别不大。考察了反应条件对5%MCM-22/REHY上反应的影响。Upgrading of FCC gasoline was investigated in a fixed fluidized bed microreactor over USY, REY and REHY. REHY showed better aromatization and isomerization behavior than USY and REY. MCM-22 zeolite, as the co-catalyst with REHY, exhibited superior properties at loading of (5 wt%) to the same loading of ZSM-5, with liquid yield of 94.40 wt%( vs. 90.46 wt% for ZSM-5) and i-paraffins selectivity and aromatics yield in liquid products similar to that of ZSM-5, under the following condition: space velocity 2 h^(-1), temperature 400 , reaction time 15 min. Influences of reaction condition on the upgrading reaction over 5 wt%MCM-22/REHY were investigated, too.

关 键 词：MCM-22/REHY催化剂 催化裂化 汽油改质 降烯烃 芳构化 异构化 

分 类 号：TE624.48[石油与天然气工程—油气加工工程]