METHOD FOR CATALYTIC REFORMING WITH CONTINUOUS CATALYST REGENERATION Russian patent published in 2021 - IPC C10G35/10 B01J23/656 B01J38/00 

FIELD: chemistry.

SUBSTANCE: disclosed is a method of catalytic reforming with continuous catalyst regeneration, which includes carrying out the process on a catalyst, moving it to a regeneration column, burning off coke, followed by catalyst reduction with a hydrogen-containing gas, where the process is carried out in a plant containing a reactor unit including two parallel reaction columns and located at the outlet of the columns, purge bins of coked catalyst, gate and transport bins, a bunker for preparation of coked catalyst, a regeneration column located nearby, parallel to the reaction columns of the reactor unit, which has a pipeline in front of the reactor unit for transporting the catalyst to the reactor unit in a nitrogen atmosphere, as well as a unit screening of catalyst fines, connected by a pipeline with the transport hopper of the regenerated catalyst, and after the stage of coke burning, traces of oxygen from the pores of the catalyst are removed by sequential treatment of the catalyst first, with a mass ratio of nitrogen to catalyst of 0.02-0.10:1 in a continuous stream of catalyst in the gate bunker of the regenerated catalyst and then at a ratio of 0.4-0.6:1 in a rarefied pneumatic transport stream of the catalyst at a temperature of 400-550°C, the recovery zone of the regenerated catalyst, in which the catalyst recovery process after leaving the regeneration column is carried out in two stages - first with a gas with a hydrogen content of at least 90% by volume. at a temperature of 350-400°C, then at a temperature of 450-550°C and a pressure of 0.25 MPa, at a flow rate of hydrogen-containing gas: in the first reduction chamber 1500-2500 nm³ / h, in the second reduction chamber - 600-1100 nm³ / h.

EFFECT: technical result consists in realizing the purpose of this method.

1 cl, 1 dwg, 1 ex