METHOD FOR REGENERATION OF CATALYST FOR DEHYDRATION OF METHYL-PHENYLCARBINOL Russian patent published in 1994 - IPC

FIELD: catalysts. SUBSTANCE: product - aluminium oxide is regenerated by air supply at first for charge superheater and for the second contacting stage, then in proportion to burning-out of polymeric deposition for the first stage of reactor. Temperature rise in superheater and reactor is limited by supply of low-temperature steam to these position. Process is carried out without deviation and cleaning the charge superheater being worked with high air steam relation and high oxygen concentration in the second stage of reactor. EFFECT: reduced regeneration period and energy consumption, decreased losses of hydrocarbon and secured afterburning of product of incomplete burning in regeneration gases which are blowing-out in atmosphere. 2 cl, 1 dwg