METHOD FOR REGENERATION OF COBALT-CONTAINING FISCHER-TROPSCH CATALYST Russian patent published in 2016 - IPC B01J23/75 B01J23/94 B01J38/10 B01J38/12 B01J38/66 C10G2/00 

FIELD: chemistry.

SUBSTANCE: invention relates to versions of method for regeneration of one or more particles of cobalt-containing Fischer-Tropsch catalyst in situ in reactor tube or ex-situ outside reactor tube, which includes the following stages: (i) oxidation of catalyst particle (particles) at temperature from 20 to 400°C, (ii) processing catalyst particles for more than 5 min, (iii) drying and, optionally heating catalyst particle (particles); and (iv) optionally, reduction of catalyst particle (particles) with hydrogen or hydrogen-containing gas, with processing stage (ii) including (a) filling catalyst particle (particles) pores with liquid with pH level 10-14, containing ammonia and water, at temperature 0-50°C, (b) passing carbon dioxide, (c) leaving liquid, processed with carbon dioxide, in pores for time period more than 5 min at temperature 5-90°C. Also disclosed is method for realisation of Fischer-Tropsch reaction, which includes the following stages: regeneration of one or more particles of cobalt-containing Fischer-Tropsch catalyst in situ or ex situ, introduction of syngas into reactor under process conditions: temperature 125-350°C, pressure 5-150 bar, volume rate 500-10000 Nl/l/h and discharge Fischer-Tropsch synthesis product from reactor.

EFFECT: reduction of cobalt loss in catalyst regeneration.

10 cl, 1 tbl, 2 ex