摘要
开发了一种非贵金属CO助燃剂。首先制备超细钙钛矿金属氧化物粉末 ,粉末粒径 30～ 70nm ,比表面积 2 0～ 2 5m2 /g。再将制备好的La1-xSrxMn1-yCoyO3 活性组分 ,与Al2 O3 高岭土混合 ,经喷雾造粒获得CO助燃剂。具有较高的活性和稳定性。固定流化床实验表明 ,该助燃剂有良好助燃活性 ,裂化产品分布与铂助燃剂相当 ,在 30 0kt/a催化裂化装置上三个多月的工业应用试验表明 。
A CO combustion promotor consisted of non noble metal oxide was prepared. The preparation procedure was mixing the prepared active component, La 1-x Sr xMn 1-y Co yO 3, powder having a particle diameter of 30 70nm and a surface area of 20 25m 2/g with Al 2O 3 and kaolin, succeeded by spraying. A fixed-fluidized bed reactor evaluation showed that the prepared promotor had high activity and stability, which cracking product slate was equivalent to that of the platinum combustion promotor. A three-month commercial test carried on a 300kt/a FCCU also exhibited good combustion promoting activity.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2001年第7期29-32,共4页
Petroleum Processing and Petrochemicals
