Catalytically converting a hydrocarbonaceous feed

摘要

Process for the catalytic conversion of a hydrocarbonaceous feed comprising contacting the hydrocarbonaceous feed in a moving-bed reactor with particulate catalyst, to obtain reactor effluent and spent catalyst, separating spent catalyst from reactor effluent, regenerating spent catalyst in a regenerator by contacting spent catalyst with air under conditions to combust coke deposited on the catalyst to obtain regenerated catalyst which is supplied to the moving-bed reactor, wherein at regular intervals spent catalyst or regenerated catalyst is contacted with a coating fluid comprising precursors of a substantially non-acidic meso- or macroporous oxidic or oxyanionic material.