钠含量对体相加氢催化剂物化性质及反应性能的影响

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关键词：体相催化剂；钠含量；物化性质；固定床；加氢活性；加氢脱硫中图分类号： 文献标志码：A 文章编号：1671-0460（2026）01-0089-

Influence of Sodium Content on Physical-Chemical Properties and Reaction Performance of Bulk Hydrogenation Catalysts

LI Juan， XU Xuejun，WANG Haitao， WENG Xiaoyi （Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co.，Ltd.，Dalian Liaoning 116045， China）

Abstract： An increase in sodium content （herein referred to as the massfraction of sodium in the catalyst or its process products）willcausechanges inthe physical-chemical properties ofthe bulkcatalyst，which notonlyaffcts thedifficulty ofcatalystformation，butalsoaffectsthehydrogenationactivityofthecatalyst.Materials withdiferentsodiumcontents were usedto preparebulkcatalysts，andbulk catalysts with diferentsodium contents were prepared，andtheinfluence ofsodium on thecatalyst physicochemical properties andcatalytic activity wassystematicaly investigated.Theresults showed that high sodium content in the extruded material would result in the iabilityto prepare and shape the bulk catalyst. When the sodium mass fraction in the extruded material was below 10% ， successful shaping was achievable. When the sodium mass fraction decreased to 1.5% ，thecatalyst strength increased from 98N⋅cm-1 to 167N⋅cm-1 while the attrition rate（mass fraction） decreased from 2.21% to 1.21% .When the sodium mass fraction in the bulk catalyst decreased from 7.27% to 0.08% ， the pore volume increased by 1.45 times and the specific surface area increased by 1.56 times. When sodium mass fraction was 0.40% ， sodium did not cause aggregation of the active metals， but the sodium deposited in the catalyst pores led to a decline in HDS and HDN activities， with the refined oil containing 14.4μg⋅g-1 sulfur and 3.1μg⋅g-1 nitrogen. Sodium mass fraction of 6.51% caused aggregation of the active metals and severe decrease in hydrogenation activity.Therefore，the sodium massfraction in the bulk catalyst should be controlled below 0.30% to ensure that the physicochemical properties of the catalyst remain unchanged and good hydrogenation activity is maintained.

Key words： Bulk catalyst; Sodium content; Physical-chemical properties; Fixed-bed; Hydrogenation activity; HDS

由开发的FTX系列加氢精制催化剂，是国内唯一实现工业应用的体相催化剂，具有非常高的加氢活性，属国内首创[1]。（剩余7296字）