加氢后回炼油作为焦化供氢剂的效果考察  

INVESTIGATION OF HYDRO-TREATED FCC RECYCLE OIL AS HYDROGEN DONOR FOR COKING REACTION

作　　者：牛毓 王伟 王兴 舒畅[2] 王红 

机构地区：[1]中国海油炼油化工科学研究院,山东青岛266500 [2]中国海油天津化工研究设计院有限公司

出　　处：《石油炼制与化工》2018年第3期75-79,共5页Petroleum Processing and Petrochemicals

摘　　要：对催化裂化回炼油三段窄馏分的供氢能力进行测定,选取供氢能力最强的一段进行加氢处理,以加氢后的催化裂化回炼油窄馏分为焦化供氢剂,通过中型试验考察其供氢效果。结果表明:三段窄馏分中,小于400℃馏分供氢能力最强;加氢处理能够进一步提高其供氢能力,以加氢后回炼油小于400℃馏分作为供氢剂能够使液体收率提高1.32百分点,焦炭产率降低2.45百分点。The hydrogen-donating indexes of the three narrow fractions of FCC recycle oil were measured. Among these fractions, the one which has the highest hydrogen-donating index was chosen to be used as hydrogen donor after being hydro-treated. The hydrogen-donating effect of the hydro-treated fraction was investigated in pilot tests. The results showed that the fraction （IBP-400℃） has the best hydrogen-donating capacity among the three narrow fractions of FCC recycle oil, and the hydrogen-donating capacity can be further improved by hydrotreatment. When the fraction （IBP-400 ℃） hydrotreated was used as hydrogen donor, the liquid yield can increase by 1.32% and coke yield can decrease by 2.45%.

关 键 词：焦化 供氢剂 催化裂化 回炼油 窄馏分 加氢处理 供氢能力 

分 类 号：TE624[石油与天然气工程—油气加工工程]