Cracking catalytic for the production of light ole

专利名称：Cracking catalytic for the production of light

olefins and its preparation

发明人：Shi, Zhicheng, Research Inst. of Petrole.

Process.,Zhang, Fengmei, Research Inst. ofPetrol. Process.,Liu, Shunhua, Research Inst.of Petroleu. Process.

申请号：EP98308445.0申请日：19981015公开号：EP0909582A1公开日：19990421

摘要：A catalyst for catalytic cracking process for the production of light olefinscomprises 10∼70wt% (based on the weight of catalyst) of clay, 5∼85wt% of inorganicoxides and 1∼50wt% zeolite, wherein said zeolite is a mixture of 0∼25wt% of Y typezeolite and 75∼100wt% of phosphorus and aluminum or phosphorus and magnesium orphosphorus and calcium containing high silica zeolite having a structure of pentasil; saidpentasil high silica zeolite being one selected from the group consisting of ZSM-5, ZSM-8and ZSM-11 of zeolites containing 2∼8wt% of phosphorus and 0.3∼3wt% of aluminum ormagnesium or calcium (calculated as the oxides), having a silica/alumina mole ratio of 15-60. The catalyst exhibits excellent activity stability and high yields of light olefin,especially for ethylene, also method for preparation of the catalyst. It can attain thesame level of yields of light olefins as that of steam thermal cracking at a lower reactiontemperature than that of steam thermal cracking.

申请人：CHINA PETROCHEMICAL CORPORATION,RESEARCH INSTITUTE OF

PETROLEUM PROCESSING, SINOPEC

地址：6A Huixingdong Street, Chaoyang District Beijing CN,18, Xue Yuan Road BeijngCN

国籍：CN,CN

代理机构：Colmer, Stephen Gary

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