尾油循环对渣油悬浮床加氢裂化的影响  

EFFECT OF VACUUM BOTTOM RESIDUE RECYCLING ON SLURRY BED HYDROCRACKING OF RESIDUE

作　　者：周家顺[1] 邓文安[1] 刘东[1] 梁士昌[1] 阙国和[1] 

机构地区：[1]石油大学重质油加工国家重点实验室,山东东营257061

出　　处：《石油学报（石油加工）》2001年第4期82-85,共4页Acta Petrolei Sinica(Petroleum Processing Section)

摘　　要：利用中型悬浮床加氢试验装置 ,在氢压 1 0 MPa,温度 4 30～ 4 50℃ ,添加 80 0 μg/g多金属分散型催化剂的条件下 ,考察了克拉玛依炼厂常压渣油的加氢裂化性能。在总空速不变的条件下 ,将加氢后的尾油与新鲜原料混合 ,进行循环加氢裂化。采用了常压渣油循环、减压渣油循环和减压蜡油加部分减压渣油循环 3种方式。结果表明 ,尾油循环加氢裂化 ,可以提高轻油的收率。尾油中包含的催化剂仍具有催化活性 。Atmospheric residue of Karamay Petrochemical Complex was hydrocracked in the presence of 800 μg/g multi metal dispersed catalyst in slurry bed under the pressure of 10 MPa,reaction temperature of 430 to 450 ℃ Keeping the total volume space hourly velocity constant, the hydrocracked tail oil was pumped back and mixed with the fresh feed for recycling Three optional models of recycling were used: atmospheric bottom residue recycling, vacuum bottom residue recycling and partial vacuum bottom residue mixed with vacuum gas oil recycling The results showed that the recycling of bottom oil raised the total conversion The catalyst fines dispersed in the bottom oil still kept active It can inhibit the formation of toluene insolubles

关 键 词：渣油 加氢裂化 悬浮床 尾油 循环 

分 类 号：TE624.432[石油与天然气工程—油气加工工程] TE626.25