加氢装置超长周期稳定运转的影响因素和对策  

AFFECTING FACTORS AND COUNTERMEASURE FOR LONG-TERM STABLE OPERATION OF HYDTROTREATING UNIT

作　　者：穆海涛[1] 梁家林[2] 任亮[2] 姚立松[1] Mu Haitao;Liang Jialin;Ren Liang;Yao Lisong(SINOPEC Qingdao Refining & Chemical Co.,Ltd.,Qingdao,Shandong 266500;SINOPEC Research Institute of Petroleum Processing)

机构地区：[1]中国石化青岛炼油化工有限责任公司,山东青岛266500 [2]中国石化石油化工科学研究院

出　　处：《石油炼制与化工》2021年第11期14-18,共5页Petroleum Processing and Petrochemicals

摘　　要：结合两套蜡油加氢工业装置实际运转情况以及待生催化剂表征数据,分析并讨论了影响蜡油加氢装置长周期稳定运转的关键因素。结果表明:原料中的沥青质是影响重油加氢装置长周期稳定运转的关键因素;针对不同性质原料,设计合理的催化剂级配方案和工艺条件可实现加氢装置催化剂表面积炭的稳态平衡,从而实现工业装置催化剂长周期不失活稳定运转的目标。基于蜡油加氢装置运转经验,进一步对比分析了影响重油加氢和柴油加氢装置长周期稳定运转的关键因素,并提出了加工重油原料和柴油原料时实现长周期稳定运转的对策。Based on both vacuum gas oil hydrotreating unit operating data and the spent catalysts analysis result,the key factors affecting the long-term stable operation of the vacuum gas oil hydrotreating units are analyzed and discussed.The results show that the asphaltene content in the feedstock is the key factor affecting the long-term stable operation of heavy oil hydrotreating unit.By designing the reasonable catalysts grading system and operating condition for the different feedstocks,the coke deposited on the catalysts surface could reach the dynamic equilibrium and the hydrotreating unit catalysts could not deactivate in the whole cycle length.Based on the VGO hydrotreating unit operating experience,the countermeasures to realize long-term stable operation of heavy oil and diesel fraction hydrotreating unit are put forward.

关 键 词：蜡油加氢 催化剂失活 沥青质 长周期 

分 类 号：TE6[石油与天然气工程—油气加工工程]