FCC催化剂用铝溶胶的制备及性能评价  

Preparation and performance evaluation of alumina sol prepared for FCC catalyst

作　　者：苏凯民 尹建军[1] 张忠东 王会丽[1] 蒙燕子 高雄厚[2] 

机构地区：[1]兰州理工大学石油化工学院,甘肃兰州730050 [2]中国石油兰州化工研究中心,甘肃兰州730060

出　　处：《化工学报》2016年第8期3515-3520,共6页CIESC Journal

基　　金：国家重点基础研究发展计划项目(2012CB215001)~~

摘　　要：采用添加适量铝粉的酸解-胶化工艺制备铝溶胶,采用p H计、旋转流变仪、纳米粒度与zeta电位仪等对铝溶胶的理化性质进行表征,用制得的铝溶胶样品制备成催化剂进行固定床反应评价。结果表明:采用添加适量铝粉的酸解-胶化工艺制得的铝溶胶氧化铝质量分数可达20%,氯质量分数不高于15%,p H为2.3,溶胶稳定性良好,可以满足FCC催化剂的实际使用要求。The alumina sol with high content of Al2O3 was prepared by acidolysis-peptizing with aluminum as an additive. Its physical and chemical properties were characterized by p H meter, rheometer, digital viscometer and zeta potential analyzer. Catalytic performance of catalyst that was prepared with alumina sol was evaluated through a fixed-bed. The results showed that the alumina content can reach 20%（mass） of the alumina sol sample with aluminum powder p H of 2.3. The alumina sol had good stability and chlorine was not higher than 15%（mass）, which can meet the FCC cracking catalyst requirements.

关 键 词：胶体 氧化铝 催化剂 铝粉 胶溶工艺 

分 类 号：TQ028.8[化学工程]