煤直接液化生产高压屏蔽泵密封油的探索与工业实践  

EXPLORATION AND INDUSTRIAL PRACTICE OF PRODUCING HIGH-PRESSURE CANNED-MOTOR PUMP SEALING OIL BY DIRECT COAL LIQUEFACTION

作　　者：逯波 杜强 Lu Bo;Du Qiang(CHN Energy Investment Group Xinjiang Hami Energy Chemical Co.,Ltd.,Hami,Xinjiang 839000;CHN Energy Investment Group Chemical Industry Department)

机构地区：[1]国家能源集团新疆哈密能源化工有限公司,新疆哈密839000 [2]国家能源集团化工事业部

出　　处：《石油炼制与化工》2024年第12期66-71,共6页Petroleum Processing and Petrochemicals

摘　　要：介绍了煤直接液化工艺中以重减压瓦斯油和加氢稳定高温溶剂作为基础油,生产高压屏蔽泵密封油的相关研究及工业实践。分别比对煤直接液化轻油、液化重油及加氢稳定装置高温溶剂油、中温溶剂油作为密封油基础油的可行性,采用煤液化减压塔侧二线油和高温溶剂油作为基础油进行配比。通过优化煤液化工艺流程,将减压重瓦斯油与高温溶剂油分别按照质量比1∶1.93和1∶1.50进行调合,可以生产出满足质量指标要求的高压屏蔽泵密封油产品。煤直接液化装置每个生产周期按使用密封油2600 t计,用自产密封油产品替代外购密封油可节约成本约2444万元/a,说明煤液化装置高压屏蔽泵使用自产密封油的经济效益显著。The research and industrial practice of producing high-pressure canned-motor pump sealing oil with heavy vacuum gas oil and hydrogenation stable high temperature solvent as base oil in direct coal liquefaction process were introduced.The feasibility of using light and heavy oil products from coal liquefaction,and high and medium temperature solvents from hydrogenation stabilization devices as sealing oil base oil was compared respectively.The second line oil and high-temperature solvent at the side of coal liquefaction vacuum column were used as base oil.By optimizing the coal liquefaction process,high-pressure canned-motor pump sealing oil products that meet quality requirements could be produced by blending depressurized heavy gas oil and high-temperature solvent oil in a mass ratio of 1∶1.93 and 1∶1.50,respectively.Based on the use of 2600 tons of sealing oil per production cycle in the coal direct liquefaction unit,using self-produced sealing oil instead of purchased sealing oil can save about 24.44 million yuan per year,indicating significant economic benefits of using self-produced sealing oil for the high-pressure canned-motor pump in the coal liquefaction unit.

关 键 词：煤直接液化 高压屏蔽泵 密封油 

分 类 号：TQ529.1[化学工程—煤化学工程]