摘要
以异丙醇铝为铝源、P123为模板剂,采用溶剂蒸发诱导自组装方法制备了有序介孔氧化铝,并将其作为基质组分用于制备新型抗重金属污染FCC催化剂。表征结果表明,所制备有序介孔氧化铝具有高度有序的介孔孔道结构,比表面积和孔体积分别可达233m^2/g和0.55cm^3/g。作为基质材料,在改善催化剂基质孔结构的同时,显著提高了催化剂的比表面积和孔体积。反应性能评价结果表明,所制备有序介孔氧化铝明显改善了所制备催化剂的抗重金属污染性能,在相同重金属污染条件下,催化剂上干气、焦炭和重油产率分别下降了0.36,0.92,0.25百分点,而汽油、总液体收率和轻质油收率则分别增加了1.23,1.53,1.02百分点。
Ordered mesoporous alumina was synthesized through solvent evaporation induced self assembly method with aluminium isopropoxide as aluminum source and P123 as template,and used as matrix component for preparation of new heavy metal tolerance FCC catalyst.Characterization results indicate that the alumina synthesized possesses ordered mesopores with surface area of 233 m^2/g and pore volume of 0.55cm^3/g,which remarkably promote pore structure properties of FCC catalyst.The catalytic performance evaluation results illustrate the distinct improvement of heavy metal tolerance for FCC catalyst using this ordered mesoporous alumina.Compared with traditional catalyst,the dry gas,coke and heavy oil yields of the obtained catalyst decrease by 0.36,0.92 and 0.25 percentage points,while the yields of gasoline,total liquid and light oil increase by 1.23,1.53 and 1.02 percentage points,respectively.
作者
袁程远
潘志爽
谭争国
张海涛
Yuan Chengyuan Pan Zhishuang Tan Zhengguo Zhang Haitao(Lanzhou Petrochemical Research Center, Petro China, Lanzhou 73006)
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2017年第5期52-55,共4页
Petroleum Processing and Petrochemicals
基金
中国石油天然气股份有限公司科技管理部资助项目(2016B-2005)
关键词
有序介孔
氧化铝
催化裂化
抗重金属
催化剂
ordered mesoporous
alumina
catalytic cracking
heavy metal tolerance
catalyst
