CATALYST REGENERATOR AND RISER HEAD USED THEREIN Russian patent published in 2019 - IPC B01J8/00 

FIELD: chemistry.

SUBSTANCE: disclosed is a catalyst regenerator for burning carbonaceous deposits from a catalyst, comprising a first chamber having an inlet for catalyst inlet, intended to feed the spent catalyst with carbon deposits into a first chamber, an additional fuel gas distributor and an oxygen-containing gas distributor for distributing the oxygen-containing gas in the first chamber with contact with the spent catalyst and burning off carbon deposits and additional fuel gas, which further deactivates spent catalyst and forms flue gas; a riser extending from the first chamber for transfer of waste catalyst and flue gas and having an outer wall, at least one slot opening in the outer wall and a riser header, which comprises a substantially flat cover on the inner side, at least one trunk extending from the lid and extending around the slit opening in the outer wall, wherein the trunk is enclosed in the outer shell and no inner portion of the cover passes over the upper surface of the outer shell of the at least one trunk, riser is designed so that during operation of catalyst regenerator no catalyst particles in riser pass inside riser above level of at least one slot hole. Besides, the head of the riser is proposed.

EFFECT: invention makes it possible to prevent abrasion of catalyst in catalyst regenerator.

14 cl, 6 dwg