催化裂化柴油选择性加氢裂化生产高辛烷值汽油或轻质芳烃原料的RLG技术开发和应用  

DEVELOPMENT AND APPLICATION OF RLG TECHNOLOGY FOR LCO SELECTIVE HYDROCRACKING TO PRODUCE HIGH-OCTANE GASOLINE OR LIGHT AROMATICS FEEDSTOCK

作　　者：许双辰 任亮[1] 杨平[1] 胡志海[1] 严张艳 王锦业[1] Xu Shuangchen;Ren Liang;Yang Ping;Hu Zhihai;Yan Zhangyan;Wang Jinye(SINOPEC Research Institue of Petroleum Processing,Beijing 100083)

机构地区：[1]中国石化石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2021年第5期1-7,共7页Petroleum Processing and Petrochemicals

基　　金：中国石油化工股份有限公司合同项目(ZD117003和114123)。

摘　　要：基于对典型催化裂化柴油(LCO)的烃类组成以及汽油馏分中高辛烷值组分的分析,结合芳烃加氢反应机理,确定了LCO选择性加氢裂化生产高辛烷值汽油或轻质芳烃原料(苯、甲苯、二甲苯)技术(RLG技术)的最优化学反应路径,研究了工艺条件对RLG产品收率和产品性质的影响。第一代RLG技术工业应用结果表明,以密度(20℃)大于928.1 kg m 3的LCO为原料,可以生产收率大于43.48%、硫质量分数小于1.3μg g、研究法辛烷值大于92.0的高辛烷值汽油,同时还能兼产清洁柴油。在第一代RLG技术的基础上,开发了第二代RLG技术(RLG-Ⅱ技术),中型试验结果表明,RLG-Ⅱ技术具有良好的原料油适应性,可得到高收率、高辛烷值的产品汽油及低硫、低氮清洁柴油调合组分。On the basis of analyzing the typical aromatic compositions of FCC light cycle oil(LCO)and the high-octane components in gasoline fractions,combined with aromatic hydrocarbons hydrocracking reaction mechanism,the optimal chemical reaction path of RLG technology(LCO selective hydrocracking to produce high-octane gasoline or light aromatics)was determined.The effects of RLG process conditions on product yield and property were studied.The application of the first generation RLG technology showed that using the LCO with density greater than 928.1 kg m 3 as raw material,the RLG technology could produce the gasoline with the average yield more than 43.48%,sulfur content less than 1.3μg g and RON more than 92.0.Besides that,this technology could also produce clean diesel.The RLG-Ⅱtechnology was developed on the basis of the first-generation RLG technology.The pilot tests results on raw oil adaptability showed that the RLG-Ⅱtechnology had good adaptability to various types of LCO.The product gasoline with high yield and high-octane number and the clean diesel blending component of low sulfur and low nitrogen could be obtained.

关 键 词：催化裂化柴油 加氢裂化 高辛烷值汽油 轻质芳烃 RLG RLG-Ⅱ 

分 类 号：TE626.24[石油与天然气工程—油气加工工程]