材料科学
焦炭
脱氢
催化作用
集聚经济
化学工程
尖晶石
丙烯
选择性
丙烷
纳米颗粒
无机化学
冶金
纳米技术
有机化学
化学
工程类
作者
Jiyang Xie,Haoqing Jiang,Ying Qian,Hongqin Wang,Nihong An,Shuai Chen,Yunsheng Dai,Shuailong Guo
标识
DOI:10.1002/admi.202101325
摘要
Abstract Recently, the propane dehydrogenation (PDH) to propylene has become one of the most promising and attractive techniques for the production of propylene because the success of the large‐scale exploitation of shale gas can supply an abundance of cheap propane for this process. Al 2 O 3 is usually used as a support for PtSn catalysts to withstand the harsh reaction environment in the PDH process. However, due to the formation of coke and thermal agglomeration of metal particles, the PtSn catalyst suffers severe deactivation. Therefore, spinel supports are rationally designed with different morphologies (sphere, sheet, and rod) to stabilize the PtSn catalyst in the PDH. Specifically, the rod‐like spinel support exhibits a larger pore size and suitable interaction with PtSn nanoparticles shows an excellent C 3 H 8 conversion rate of 43.2% and a C 3 H 6 selectivity of 95.0% with an extremely low deactivation rate of 0.005 h −1 for the cycle test, standing as one of the best PDH catalysts reported to date and outperforming the commercial PtSn/Al 2 O 3 catalysts. Besides, this catalyst is compatible with the industrial process to achieve scalable production.
科研通智能强力驱动
Strongly Powered by AbleSci AI