石油化工高等学校学报2012，Vol.25Issue(3)：31-34,4.DOI:10.3969/j.issn.1006-396X.2012.03.007
尾油循环条件下悬浮床加氢产物氮分布的研究
Research on Nitrogen Distribution in Products of Slurry-Bed Hydrocracking of Cracked Residues Recycle
摘要
Abstract
Atmosphic residue of Karamay petrochemical complex was hydrocraeked in the presence of 1 000 μg/g multrimetal dispersed cagalyst in slurry-bed under the reaction time of 1 h. reaction temperature of 440 ℃ . the cracked residue was put back and mixed with the fresh feed for recycling. The ratios of cracked residue for recycling were 0, 15. 0% , 20. 0% , 25. 0%. The reaction products was separate into IBP -180 ℃ (Gasoline), 180 - 360 ℃(AGO), 360 ~ 500 ℃VGO) and >500 ℃ (Cracked residue). The basic nitrogen in each fraction was determined by non -aqueous potentiometric thration. The nitrogen was determined by boal - inlel using REN- 1000A device. The basic nitrogen and total nitrogen in the product are mainly concentrated into VGO and cracked residue. Both basic nitrogen content and total nitrogen content increased with the increase of the ratio of cracked residue to feedstock. Only about 10% of the basic nitrogen and total nitrogen were in gasoline and AGO. The ratio of fraction basic nitrogen content to fraction total nitrogen content in VGO and cracked residue was about 30%, which was about 50%~70% in Gasoline and AGO.关键词
渣油/悬浮床加氢/尾油循环/氯分布Key words
Residue/ Slurry-bed hydrocracking/ Cracked residue recycle/ Nitrogen distribution Corresponding author.分类
能源科技引用本文复制引用
文萍,李传,李庶峰,邓文安..尾油循环条件下悬浮床加氢产物氮分布的研究[J].石油化工高等学校学报,2012,25(3):31-34,4.基金项目
国家自然科学基金青年基金项目(21106186) （21106186）
