RS-1000柴油超深度脱硫催化剂和FH-5A的组合应用

介绍了RS-1000超深度脱硫催化剂和FH-5A、FH-5传统催化剂在中国石化镇海炼化分公司3.0Mt/a柴油加氢装置上的应用情况,解决了RS-1000超深度脱硫催化剂干燥、硫化等过程与FH-5A、FH-5传统催化剂的组合问题。标定结果表明,RS-1000超深度脱硫催化剂与FH-5A、FH-5传统催化剂组合应用,在原料平均硫质量分数为1.36%、反应进料满负荷、空速1.97h-1、氢油体积比298、反应入口压力5.79MPa、反应入口温度336℃、平均床层温度约360℃的条件下,精制柴油硫质量分数为0.044%,平均脱硫率达到96.8%,脱氮率为85.2%;此工况氢耗0.77%,反应器压降0.17MPa,床层径向温差仅3℃,表明该催化剂组合具有良好的活性。工业运转数据显示,经过3.5年的长周期运行,该催化剂组合仍具有良好的活性,表明其具有很高的稳定性。

COMBINED APPLICATION OF RS-1000 CATALYST AND FH-5A CATALYST FOR ULTRA LOW SULFUR DIESEL PRODUCTION

RS-1000 catalyst for ultra low sulfur diesel production was applied in the 3.0 Mt/a diesel hydrogenation unit of SINOPEC Zhenhai Company along with the conventional FH-5A/FH-5 catalysts. The packing, drying and presulfiding of the series catalysts were introduced. Performance test results showed that using RS-1000/ FH-5A/FH-5 combined catalysts and a feed with a sulfur content of 1.36%, under the conditions of a LHSV of 1.97 h-1, a hydrogen to oil volume ratio of 298, a reactor inlet pressure of 5.79 MPa, a reactor inlet temperature of 336 ℃ and an average bed temperature of 360℃, the sulfur content of the treated diesel was 0.044%. The average HDS and HDN rates were 96.8% and 85.2%, respectively; the hydrogen consumption was 0.77%, the pressure drop of reactor was 0.17 MPa and radial temperature difference was 3℃, which indicated that the combined catalysts possessed excellent activity. Data of 3.5 years running further supported that the activity as well as the stability of the combined catalysts was excellent.