FF-66/FC-52组合催化剂在柴油加氢改质装置上的应用

Application of FF-66/FC-52 combined catalyst in diesel oil hydrogenation upgrading unit

分析了FF-66及FC-52型催化剂在某公司1.5 Mt/a柴油加氢改质装置上的应用情况。工业应用表明,在反应压力11.5 MPa、精制床层平均温度360℃、裂化床层平均温度369℃的条件下,产品柴油硫、氮质量含量均小于2.0μg/g,石脑油收率由14.5%增加至32.9%,产品柴油收率由50.9%下降至39.4%,装置柴汽比由3.22下降至1.20。FF-66、FC-52催化剂具有优异的加氢脱硫、脱氮活性和较高的石脑油产品选择性。该催化剂级配体系的成功应用,可以为同类装置制定油品质量升级及降低柴汽比方案提供一定的借鉴意义。

The application situation of FF-66/FC-52 combined catalysts developed by FRIPP in the 1.5 million t/a diesel oil hydrogenation upgrading unit of PetroChina Karamay Petrochemical Co.,Ltd.is analyzed.Practical industrial application of the combined catalysts shows that the mass contents of sulfur and nitrogen in product diesel are both less than 2.0μg·g-1,naphtha yield increases from 14.5%to 32.9%,product diesel yield decreases from 50.9%to 39.4%,and the yield ratio of diesel-gasoline decreases from 3.22 to 1.20 under the conditions that reaction pressure is 11.5 MPa,average temperature of refining reactor is at 360℃,and average temperature of cracking reactor is at 369℃.FF-66/FC-52 catalysts have excellent hydrodesulfurization and denitrification activities,and high naphtha product selectivity.The successful application of catalyst grading system can provide a certain reference for formulating schemes to upgrade oil quality and reduce diesel-gas ratio for similar units.