钙钛矿金属氧化物CO助燃剂  

Perofskite Metal Oxide Used as CO Combustion Catalyst

作　　者：崔连起 王开林[1] 魏秀萍[1] 张家庆[2] 李琬[3] 

机构地区：[1]天津石化公司研究所,天津300271 [2]天津石化公司第一石化厂,天津300380 [3]北京工业大学,北京100022

出　　处：《精细石油化工进展》2000年第9期8-13,共6页Advances in Fine Petrochemicals

摘　　要：研究开发了一种非贵金属CO助燃剂及其制备方法。首先,制备超细钙钛矿金属氧化物粉末,粉末粒径为 30～70 nm,比表面积为 20～25 m^2/g,再将制备好的La_(1-x)Sr_xMn_(1-y),CO_yO_3活性组分与 Al_2O_3、高岭土混合,经喷雾获得 CO助燃剂,具有较高的活性和稳定性。固定流化床实验表明,该助燃剂有良好的助燃活性,裂解产品分布与铂助燃剂相当,在30 Mt/a催化裂化装置上经3个多月的工业应用试验表明,本助燃剂有良好的助燃活性和应用前景。A method to prepare perofskite metal oxide used as non-noble metal CO combustion cata-lyst was developed. The titled combustion catalyst with higher activity and stability was prepared by (1) preparing ultrafines of perofskite metal oxide with diameter of 30-70 nrn and specific area of 20-25 m2/g , (2) mixing prepared active components of La1-xSrxMn1-xCoyO3 with A12O3 and kaolin, and (3) spraying the resulting mixture. It is showed by fixed fluid bed test that the combustion catalyst has high activity for combustion, the distribution of cracked products is similar to that when using Pt catalyst. It is showed by commercial application test on 30 Mt/a FCC unit after more than 3 months that the combustion catalyst has high activity and application prospects.

关 键 词：钙钛矿 金属氧化物 助燃剂 催化燃烧 催化剂 

分 类 号：TE624.8[石油与天然气工程—油气加工工程]