REGENERATION OF DEHYDROGENATION CATALYST OF ALKANE WITH OXYCHLORINATION WITH LOW CONTENT OF CHLORINE Russian patent published in 2020 - IPC B01J38/44 B01J38/34 B01J23/62 B01J23/08 B01J38/18 B01J38/30 C07C5/32 

FIELD: chemical or physical processes.

SUBSTANCE: invention relates to a method of reducing time for exposure treatment in air during regeneration, including (i) removing surface carbon compounds from a gallium dehydrogenation catalyst of the alkane during burning in the presence of fuel gas, (ii) conditioning the gallium dehydrogenation catalyst of the alkane after step (i) by treatment in air at temperature of 660 degrees Celsius (°C) to 850 °C with (iii) oxygen-containing gas stream, containing (iv) from 0.1 to 100 parts per million by volume (ppm) of a chlorine source selected from chlorine, a chlorine compound or a combination thereof, and achieving a predetermined percentage of alkane conversion for the gallium dehydrogenation catalyst subjected to the regeneration process, including exposure on air using steps from (i) to (iv), by 10 to 50 % faster when treated with exposure on air, than required to achieve the same pre-specified percentage conversion of the alkane for the gallium dehydrogenation catalyst subjected to the regeneration process, including exposure on air using steps from (i) to (iii), but without (iv).

EFFECT: technical result consists in increase in efficiency and efficiency of alkane dehydrogenation.

10 cl, 2 tbl, 1 dwg