汽柴油加氢装置催化剂性能考察及长周期运行操作优化  

OPTIMIZATION AND LONG TERM OPERATION OF GASOLINE AND DIESEL HYDROTREATING UNIT

作　　者：李丽蓉 袁小彬[1] Li Lirong;Yuan Xiaobin(SINOPEC Tahe Refinery&Chemical Company,Kuqa,Xinjiang 842000)

机构地区：[1]中国石化塔河炼化有限责任公司,新疆库车842000

出　　处：《石油炼制与化工》2020年第11期35-39,共5页Petroleum Processing and Petrochemicals

摘　　要：为了适应柴油产品质量升级需求,中国石化塔河炼化有限责任公司2号汽柴油加氢装置采用中国石化石油化工科学研究院开发的RS2100 RS2110超深度加氢脱硫催化剂新鲜剂和中国石化大连(抚顺)石油化工研究院开发的FHUDS系列催化剂再生剂,处理焦化汽油、焦化柴油和常二线柴油的混合原料,得到的精制柴油硫质量分数为3.2μg g,氮质量分数为0.67μg g,多环芳烃质量分数为2.9%,十六烷值为52,闪点(闭口)为68℃,满足国Ⅵ柴油质量升级的要求。装置运行不到一年,催化剂失活速率大于24.0℃a,而后通过调整两台反应器的温度分布、原料组成和产品硫含量,使催化剂失活速率小于14.4℃a,反应器床层最高温度不大于390℃,反应器压差维持在0.4 MPa,催化剂稳定性较好,能够满足装置长周期运行的要求。The fresh ultra-deep hydrodesulfurization catalysts RS2100 RS2110(developped by SINOPEC Research Institute of Petroleum Processing)and regenerated FHUDS catalyst series(developed by SINOPEC Dalian(Fushun)Research Institute of Petroleum Processing)were used in a 1.67 Mt a hydrotreating unit processing mixed feedstock of coker gasoline,coker diesel and atmospheric gas oil in SINOPEC Tahe Refinery&Chemical Company.The nationalⅥstandard diesel was obtained with flash point(closed)of 68℃,S content of 3.2μg g,nitrogen content of 0.67μg g,cetane number of 52,and poly-aromatic hydrocarbons content of 2.9%.However,the deactivation rate of catalysts was to 24.0℃a within half a year.After adjusting the temperature distribution of two reactors,raw material composition as well as the sulfur content of products,the catalyst deactivation rate was reduced to less than 14.4℃a,the pressure drop of reactors was 0.4 MPa,and the maximum temperature of reactor bed was less than 390℃,indicating a good stability of the catalysts system.The catalysts can meet the need for long term operation.

关 键 词：加氢催化剂 焦化汽油 焦化柴油 加氢脱硫 操作优化 国Ⅵ柴油 

分 类 号：TE624.93[石油与天然气工程—油气加工工程]