| 渣油加氢转化催化剂初期结焦规律的研究 |
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| 引用本文： | 陈士锋,杨朝合.渣油加氢转化催化剂初期结焦规律的研究[J].燃料化学学报,2001,29(5):395-399. |
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| 作者姓名： | 陈士锋 杨朝合 |
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| 作者单位： | 石油大学重质油加工国家重点实验室 山东东营257061
(陈士锋)，石油大学重质油加工国家重点实验室 山东东营257061(杨朝合) |
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| 基金项目： | 中国石油天然气集团公司石油科技中青年创新基金 ( 990 412 )~~ |
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| 摘 要： | 以孤岛减压渣油及其超临界流体萃取分馏所得的窄馏分为原料，采用齐鲁石化公司胜利炼油厂VRDS装置的主催化剂，在高压釜反应器内考察了渣油加氢转化催化剂的初期结焦规律。结果表明，焦炭的生成是一个动态过程，其产率和性质与反应体系的温度、时间、氢气初始压力及原料的性质密切相关；结焦催化剂的孔壁焦炭沉积和堵孔现象严重，导致其比表面积大大减小，孔分布向小孔范围迁移。
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| 关 键 词： | 渣油 加氢转化 焦炭沉积 催化剂 失活 超临界流体萃取分馏 结焦规律 |
| 文章编号： | 0253-2409(2001)05-0395-05 |
| 修稿时间： | 2001年1月29日 |
STUDIES OF INITIAL COKE FORMATION ON RESIDUAL HYDROCONVERSION CATALYST |
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| CHEN Shi feng,YANG Chao he.STUDIES OF INITIAL COKE FORMATION ON RESIDUAL HYDROCONVERSION CATALYST[J].Journal of Fuel Chemistry and Technology,2001,29(5):395-399. |
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| Authors: | CHEN Shi feng YANG Chao he |
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| Abstract: | The initial coke formation of GDVR and its narrow fractions derived through Supercritical Fluid Extraction Fractionation technique was studied in an autoclave reactor with a commercial hydroconversion catalyst used in VRDS unit It was shown that the coke formation is a dynamic process and its yield and properties are closely related to the reaction temperature, reaction time, initial pressure of hydrogen and the characteristics of the feed The structure and property of catalyst was obviously changed due to coke deposition The specific area decreased and the pore size distribution shifted to small pore for the coke deposited catalyst |
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| Keywords: | residue hydroconversion coke deposition catalyst deactivation supercritical fluid extraction fractionation |
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