文献类型：期刊文献

中文题名：环烷酸锰催化水热裂解脱除渣油中的噻吩硫

英文题名：Removal of thiophene sulfur from residual oil by catalytic hydrothermal cracking

作者：陈威[1];许军[1];许金山[2];许晓斌[2];曹发海[1]

机构：[1]华东理工大学大型工业反应器工程教育部工程研究中心,上海200237;[2]中国石化齐鲁分公司研究院,山东淄博255400

年份：2020

卷号：49

期号：8

起止页码：729

中文期刊名：石油化工

外文期刊名：Petrochemical Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD2019_2020】；

语种：中文

中文关键词：水热裂解;减压渣油;噻吩类含硫化物;石油焦;脱硫

外文关键词：hydrothermal cracking;vacuum residue;thiophenes containing sulfides;petroleum coke;desulfurization

摘要：采用水热裂解脱硫技术脱除减压渣油中的噻吩硫,对比了分散型催化剂与油溶性催化剂的催化脱硫性能,考察了水热裂解脱硫的工艺条件,采用元素分析、飞行时间质谱和GC-MS等分析手段对水热裂解产物进行了分析,并初步探讨了噻吩类硫化物的脱硫机理。实验结果表明,水热裂解脱硫的最佳工艺条件为:环烷酸锰为催化剂、反应温度360℃、油水质量比为7∶3、反应时间48 h,在此条件下渣油脱硫率为54.04%。表征结果显示,水热裂解后渣油的平均相对分子质量降低约50%,水热裂解的油样在经焦化后硫含量低于3%(w)。
In order to remove thiophene sulfides within vacuum residues,hydrothermal cracking desulfurization was employed in this work.The catalytic desulfurization capabilities of the dispersed catalyst and the oil-soluble catalyst were compared,and the process conditions of hydrothermal cracking desulfurization were investigated.The hydrothermal cracking products were analyzed by elemental analysis,time-of-flight mass spectrometry,and GC-MS,and the desulfurization mechanism of thiophene sulfides was also discussed.The result shows that with manganese naphthenate as the catalyst,under the optimum conditions of reaction temperature of 360℃,oil/water mass ratio 7∶3 and reaction time of 48 h,the desulfurization rate of vacuum residual can reach 54.04%,the average molecular weight of the oil sample can be reduced by 50%,and the sulfur content of the pyrolyzed oil sample after coking is less than 3%(w).