REGENERATION OF METAL-CONTAINING CATALYSTS Russian patent published in 2016 - IPC B01J38/04 B01J38/10 B01J27/28 B01J29/90 C07C2/86 

FIELD: chemistry.

SUBSTANCE: invention relates to method for regeneration of coked metal-containing catalyst. Method includes interaction of coked metal-containing catalyst in regeneration zone with atmosphere which contains carbon dioxide and carbon monoxide, where ratio of partial carbon monoxide pressure to partial carbon dioxide pressure in regeneration zone constitutes from 2.3:1 to 100:1, and which contains less than 100 ppm of molecular oxygen, at temperature, equal from 600°C to 900°C, for the time, equal from approximately 0.1 to approximately 60 min, with method additionally including interaction of coked metal-containing catalyst in regeneration zone with atmosphere, which contains hydrogen, at temperature, equal not lower than 400°C, simultaneously with said interaction with said atmosphere, containing carbon dioxide and carbon monoxide, or after it.

EFFECT: elaboration of regeneration method, which is effective for coke removal and produces minimal unfavourable impact on metal-containing catalyst.

12 cl, 8 dwg, 3 tbl, 3 ex