关键词: 硫化态, THFS-2, 预加氢催化剂, 湿法活化, 活化油, 反应器压力降,

Abstract:

The industrial application of sulfurized catalyst THFS-2 in the reforming pre-hydrogenation unit was introduced, including the loading, activation, and performance calibration of catalysts. Optimization suggestions were proposed for the problem of high reactor pressure difference during the operation of the pre-hydrogenation unit. Compared with non-sulfurized catalysts, THFS-2 catalyst has the characteristics of simple start-up, short start-up time, and low start-up risk. The calibration results show that under the conditions of reactor inlet temperature of 289 ℃ and pressure of 2.94 MPa, the mass fractions of sulfur, nitrogen, and chlorine in the refined oil are all less than 0.5 μg/g and the mass fractions of arsenic, copper, and lead are all less than 1.0 ng/g, meeting the requirements of reforming feed, indicating that the THFS-2 catalyst has good activity at lower temperatures and pressures.

Key words: sulfuration, THFS-2, pre-hydrogenation catalyst, wet activation, activated oil, reactor pressure difference,