FCC待生催化剂多级组合式汽提器的开发  

DEVELOPMENT OF MULTI-STAGE COMBINATION STRIPPER FOR FCC SPENT CATALYST

作　　者：张振千[1] 田耕[1] 

机构地区：[1]中国石化集团洛阳石油化工工程公司工程研究院,河南省洛阳市471003

出　　处：《炼油技术与工程》2006年第9期12-16,共5页Petroleum Refinery Engineering

摘　　要：从冷模试验入手,以提高汽提器汽提效率为目标,开发了催化裂化沉降器待生催化剂多级组合式结构汽提器。该技术在着眼于加大汽固接触面积、提高汽固接触效率的同时,在汽提器内用间隔距离较大的挡板实现多级串联式汽提,以减小各区内汽固的返混程度,提高传质效率,从而提高汽提效率。冷模试验研究对比结果表明,新开发的汽提器汽提效率较普通环形挡板式汽提器汽提效率提高10百分点以上。在济南分公司重油催化裂化装置的工业应用结果表明,投用新汽提器后,焦炭中氢质量分数为6％～7％,降低了18．3％,焦炭产率下降0．5百分点。Through the cold modle experiment, the multi-stage combination stripper for FCC spent catalyst has been successfully developed to improve the stripping efficiency. The technology aims at increasing contacting area of steam and solids, extending steam-solid contact time and reducing the back mixing of steam and solid, and improving stripping efficiency by application of large spacing baffles in the stripper to create multistage no-back-mixing serial stripping. The cold modle experiment revealed that the stripping efficiency was over 10% higher than that of the conventional ring baffle stripper. After the application on the commercial heavy oil FCC unit in SINOPEC Jinan Company, the hydrogen in coke has been decreased from 8.2% to 6. 7%. The coke make is reduced by 0. 5%.

关 键 词：流化催化裂化装置 待生催化剂 汽提器 多级组合 试验室规模 工业应用 

分 类 号：TE966[石油与天然气工程—石油机械设备]