焦化汽柴油加氢装置应用MHUG技术改造生产国Ⅴ车用清洁柴油运行分析

塔河炼化1号汽柴油加氢精制装置采用中国石化石油化工科学研究院研发的MHUG工艺技术进行升级改造，工艺流程为先加氢精制、后加氢改质。装置新增1台加氢精制反应器作为第一反应器，装填RN-410精制催化剂，将原有反应器改造为加氢改质反应器作为第二反应器，装填RIC-3改质催化剂和RN-410后精制催化剂。改造后装置柴油产品的各项指标均达到国Ⅴ车用柴油质量标准，其中十六烷值由原料的40左右提高至产品的51.2，硫质量分数降低至小于5 μg/g，多环芳烃质量分数仅1.8%。装置在满负荷条件下运转稳定，精制及改质催化剂反应效果良好。

REVAMPING GASOLINE AND DIESEL HYDROTREATING UNIT USING MHUG TECHNOLOGY TO PRODUCE NATIONAL V DIESEL

The No.1 gasoline and diesel hybrid hydrotreating unit in Tahe Refining and Chemical Co. Ltd. was revamped according to MHUG technology developed by RIPP. The process configuration is composed of hydrogenation and then hydro-upgrading sectors. A new hydrofining reactor was added as the first reactor loaded with RN-410 refining catalyst. The original reactor is transformed into a hydrotreating reactor as a second reactor loaded with RIC-3 upgrading catalyst and post-refining catalyst RN-410. The China V diesel is successfully produced, the cetane number increases from 40 of feed to about 51.2 of the product，the sulfur content of less than 5 μg/g，and the PAHs is only 1.8%. The device is stable under full load conditions.