A301氨合成催化剂活性的单管反应器测试  

ACTIVITY TEST FOR COMMERCIAL AMMONIA SYNTHESIS CATALYST A301 IN SINGLE TUBE REACTOR

作　　者：刘化章[1] 李小年[1] 胡樟能[1] 岑亚青[1] 傅冠平[1] 

机构地区：[1]浙江工业大学催化研究所浙江省多相催化重点实验室,浙江杭州310014

出　　处：《化工学报》2001年第11期1030-1034,共5页CIESC Journal

基　　金：国家九五攻关项目 (No .96 -5 5 0 -0 2 -0 1)~~

摘　　要：The activity, specific rate of reaction and usable ratio of inner surface (URIS) for commercial A301 ammonia catalyst were measured in a tube packed bed reactor. The reaction conditions were: pressure of 7.0 , 10.0 and 15.0?MPa, temperature of 325—450?℃, space velocity of 6000, 8000 and 10000?h -1 and particle size of 0.6—0.9,1.6—2.5,2.5—3.0, 3.0—4.0 and 4.0—6.7 mm. The outlet ammonia concentration, specific rate and URIS decreased with increasing particle size. URIS of commercial catalyst depended not only on particle size, but also on temperature and catalyst efficiency. Particle size was the most important factor for URIS. With increasing particle size from 0.6—0.9?mm to 4.0—6.7?mm, URIS of catalyst decreased from 1 to 0.74—0.80. For the same size range of catalyst,URIS depended on temperature and catalyst efficiency. Above the temperature of 350?℃,catalyst efficiency and URIS increased with rising temperature. But below 350?℃,URIS increased with the decrease of temperature.The activity, specific rate of reaction and usable ratio of inner surface (URIS) for commercial A301 ammonia catalyst were measured in a tube packed bed reactor. The reaction conditions were: pressure of 7.0 , 10.0 and 15.0?MPa, temperature of 325—450?℃, space velocity of 6000, 8000 and 10000?h -1 and particle size of 0.6—0.9,1.6—2.5,2.5—3.0, 3.0—4.0 and 4.0—6.7 mm. The outlet ammonia concentration, specific rate and URIS decreased with increasing particle size. URIS of commercial catalyst depended not only on particle size, but also on temperature and catalyst efficiency. Particle size was the most important factor for URIS. With increasing particle size from 0.6—0.9?mm to 4.0—6.7?mm, URIS of catalyst decreased from 1 to 0.74—0.80. For the same size range of catalyst,URIS depended on temperature and catalyst efficiency. Above the temperature of 350?℃,catalyst efficiency and URIS increased with rising temperature. But below 350?℃,URIS increased with the decrease of temperature.

关 键 词：活性测试 内表面利用率 效率 单管反应器 合成氨工业 A301催化剂 催化活性 

分 类 号：TQ113.247[化学工程—无机化工] O643.361[理学—物理化学]