石油化工2025，Vol.54Issue(4)：531-535,5.DOI:10.3969/j.issn.1000-8144.2025.04.012
固定床渣油加氢装置反应器压力降分析
Analysis of pressure drop in reactor of fixed bed residue hydrogenation unit
李旭贺 1张成 1严寒雪 1刘铁斌 1耿新国 1袁胜华1
作者信息
- 1. 中石化(大连)石油化工研究院有限公司,辽宁 大连 116045
- 折叠
摘要
Abstract
Typical fixed bed residue hydrogenation unit was selected.The changes of pressure drop in the reactor were analyzed one by one.The direct reason for the increased pressure drop in the reactor was determined to put forward the solution.The experimental results show that the heavy components in the feedstock can not be converted due to catalyst deactivation and be induced to undergo condensation reactions by the heavy metals deposited on the catalyst surface.Moreover,the precursors of coke formation themselves are rich in heavy metals,and the hydrogen can not enter the coke core to remove the heat,thus forming a vicious cycle.During the operation of the unit,the outlet temperature of the reaction heater should be actively increased to ensure the ability of the catalyst in the front reactor to convert large molecules.Therefore,large molecules such as polycyclic aromatic hydrocarbons can be decomposed in time.In addition,the combination of the internal component technology and catalyst technology in the fixed bed residue hydrogenation unit can also effectively delay the increase in the pressure drop in the first reactor.关键词
固定床/渣油加氢/压力降/结焦Key words
fixed bed/residue hydrogenation/pressure drop/coking分类
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李旭贺,张成,严寒雪,刘铁斌,耿新国,袁胜华..固定床渣油加氢装置反应器压力降分析[J].石油化工,2025,54(4):531-535,5.
