重油催化裂解多产乙烯丙烯催化剂的研究  

Study on the catalysts for catalytic pyrolysis of heavy oil to ethylene and propylene

作　　者：李成霞[1] 高永地[1] 李春义[1] 山红红[1] 杨朝合[1] 

机构地区：[1]中国石油大学(华东)重质油国家重点实验室,山东东营257061

出　　处：《燃料化学学报》2006年第1期47-50,共4页Journal of Fuel Chemistry and Technology

基　　金：中国石油天然气股份有限公司科技攻关项目(040401-02-04)

摘　　要：采用半合成法制备了不同金属改性的ZSM-5分子筛催化剂,以大庆VGO为原料,在固定床微型反应装置上对不同金属改性催化剂进行裂解生产低碳烯烃效果的评价,筛选出生产乙烯、丙烯性能较好的银+镧双金属改性催化剂,采用喷雾干燥的方法成型,并在800℃、100%水蒸气下老化处理4 h。该催化剂在两段提升管实验装置上,以大庆AR为原料的评价结果表明,乙烯和丙烯收率可分别达到9.5%和24.9%;若考虑C4组分回炼,乙烯和丙烯收率可分别达到13.0%和29.9%。The ZSM-5 zeolites impregnated with various metal oxides were prepared, Their performances for pyrolysis of Daqing VGO feedstock to ethylene and propylene were investigated in a fixed-bed micro reactor. The catalyst prepared with spray drying method and being aged with 100% steam at 800 ℃ for 4 h was evaluated in a TSRFCC experimental apparatus with Daqing AR feedstock and showed the best performance. The 9.5 % ethylene yield and 24.9% propylene yield were obtained when the first-stage riser was fed with fresh feedstock and the second one was fed with liquid product of the first one. if the C4 mixture produced was re-cracked in the second-stage riser, the yields of ethylene and propylene could reach 13, 0% and 29.9%, respectively.

关 键 词：催化裂解 ZSM-5 金属改性 乙烯 丙烯 两段提升管 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]