Advances in Research of the Stability of Molecular Sieve Catalysts for Olefin Cracking

作者：Xue Nianhua^*; Guo Xuefeng; Ding Weiping; Chen Yi

来源：Chinese Journal of Catalysis, 2008, 29(9): 866-872.

• alkene
• catalytic cracking
• propylene
• molecular sieve
• hydrothermal stability
• coke deposition

Due to the greatly increasing demand of propene, the catalytic cracking of mixed C-4 olefins or other less valuable feedstock appears to be very attractive for industry. Much effort has been made on developing new catalysts with excellent hydrothermal stability for the application at high temperatures with steam. Aluminosilicate molecular sieves are potential catalysts for their specific pore structure and acidity. Microporous zeolites (such as HY, HZSM-5, MCM-22, etc), mesoporous molecular sieves, and molecular sieves with microporous and mesoporous structure have been used for the cracking. This paper reviewed the research progress of olefin cracking on zeolite catalysts and the improvement of hydrothermal stability of the zeolites. The advances in zeolite modification and its influence on performance of catalytic cracking of olefins were summarized. It would be valuable for the development of effective and applicable catalysts for the cracking of less valuable hydrocarbon feedstock to propene.

• 出版日期2008-9
• 单位南京大学