PST-100丙烷脱氢催化剂的开发与应用  

DEVELOPMENT AND APPLICATION OF PROPANE DEHYDROGENATION CATALYST PST-100

作　　者：刘昌呈 王春明 马爱增 王杰广 方大伟 Liu Changcheng;Wang Chunming;Ma Aizeng;Wang Jieguang;Fang Dawei(SINOPEC Research Institute of Petroleum Processing Co.,Ltd.,Beijing 100083)

机构地区：[1]中石化石油化工科学研究院有限公司,北京100083

出　　处：《石油炼制与化工》2023年第4期1-7,共7页Petroleum Processing and Petrochemicals

摘　　要：以Pt-Sn/Al_(2)O_(3)为基本催化体系,开发了PST-100型移动床丙烷脱氢催化剂,考察了助剂M与Cl含量、金属活性中心和酸性中心的调节优化等对PST-100催化剂性能及积炭速率的影响。结果表明:适量助剂M的添加有助于降低催化剂酸量,特别是中强酸酸量,加强酸中心与金属活性中心的协同作用,降低催化剂积炭速率;适量的助剂Cl有助于催化剂反应再生过程中Pt的再分散,提高催化剂的活性稳定性。200 h模拟老化试验和多次再生试验结果表明,PST-100催化剂具有良好的水热稳定性和再生性能;在某公司450 kt/a装置上工业应用4 a的结果表明,该催化剂具有优异的催化活性和活性稳定性。Based on the Pt-Sn-M/Al_(2)O_(3) system,propane dehydrogenation catalyst PST-100 for moving bed reactor was developed.The effects of promoter M and Cl content on the catalytic performance and coke deposition rate were investigated.The results show that an appropriate amount of promoter M is helpful to reduce the acidity of the catalyst,especially the amount of medium strong acid,which is able to strengthen the synergistic effect of acid function and metal function,and reduce the coke deposition rate of the catalyst.An appropriate amount of Cl on the catalyst is conducive to the redispersion of Pt in the catalyst regeneration process resulting in the improvement of the activity stability.The results of 200 h simulated aging test and multiple regeneration tests show that PST-100 catalyst has good hydrothermal stability and regeneration performance.It has been applied in a 450 kt/a unit for four years and the application results demonstrate excellent catalytic performance and activity stability.

关 键 词：丙烷脱氢 催化剂 移动床 铂 锡 氧化铝 

分 类 号：TQ221.212[化学工程—有机化工] TQ426