Process for the preparation of a catalyst using a rapid drying stage and use thereof for Fischer-Tropsch synthesis

摘要

The present invention concerns a process for the preparation of a catalyst comprising an active phase comprising at least one metal from group VIII selected from cobalt, nickel, ruthenium and iron, alone or as a mixture, and an oxide support which can be used in a Fischer-Tropsch synthesis process comprises at least once the linked sequence of a stage for impregnation of said oxide support, a drying stage in which said impregnated oxide support is entrained by means of a gas, said impregnated oxide support being subjected in said stage to a temperature rise ramp of between 250 and 600° C./min, the residence time of said impregnated oxide support in said drying stage being between 1 second and 1 minute, and a stage for calcination of said dried impregnated oxide support. The invention also concerns a Fischer-Tropsch synthesis process using the catalyst prepared according to the preparation process.

主权项

1. A process for the preparation of a catalyst comprising an active phase comprising at least one metal from group VIII selected from cobalt, nickel, ruthenium, iron, and mixtures thereof, and an oxide support, said process comprising the following in sequence:
impregnating an oxide support with at least one solution containing at least one precursor of cobalt, nickel, ruthenium, or iron, rapidly drying the impregnated oxide support in a rapid drying stage by entraining said impregnated oxide support in a gas and subjecting said impregnated oxide support to a temperature rise ramp of between 250 and 600° C./min, wherein the residence time of said impregnated oxide support in said rapid drying stage is between 1 second and 1 minute, and calcining the impregnated and dried oxide support.