Catalytic cracking reactions of C4-olefin over zeolites H-ZSM-5,H-mordenite and H-SAPO-34

摘要：

Zeolites ZSM-5, mordenite and SAPO-34 were synthesized hydrothermally, using hexamethylenediamine(HMDA), tetraethylammonium bromide (TEABr) and morpholine as directing agents, respectively. Their catalytic performances in C4-olefin cracking reactions were investigated under a weight hourly space velocity as high 15 h-1. It was found that the acid strength of these samples followed the order of H-SAPO-34<H-ZSM-5<H-mordenite; and their stability in the catalytic test followed the order of H-SAPO-34 H-ZSM-5>H-mordenite. Among these samples, the H-ZSM-5 zeolite was the optimal catalyst for C4-olefin cracking to produce propylene. The H-ZSM-5 zeolite with small crystal size exhibited higher stability than the H-ZSM-5 with large crystal size for a long time-on-stream.

作者: G.-L. Zhao J.-W Teng Z.-K Xie W.-M Yang Q.-L Chen Y. Tang

作者单位: Shanghai Research Institute of Petrochemical Technology, SINOPEC, 1658 Pudong Beilu,Shanghai 201208; Shanghai Research Institute of Petrochemical Technology, SINOPEC, 1658 Pudong Beilu,Shanghai 201208 Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials,

会议类型: 国际会议

会议名称: 第15届国际分子筛大会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-12（万方平台首次上网日期，不代表论文的发表时间）