Patent ID: 8062507

Claim:
A process for the stripping of entrained and/or adsorbed hydrocarbons from catalyst particles, said process comprising: contacting catalyst particles with a hydrocarbon stream; disengaging hydrocarbons from the catalyst particles after contact with said hydrocarbon stream to produce a stream of spent catalyst particles containing entrained and/or adsorbed hydrocarbons; passing the spent catalyst particles downwardly over a plurality of baffles; at least some of the spent catalyst particles traveling down a first face and a projecting edge of a first baffle at a first acute angle with respect to vertical and then traveling down a second face of said first baffle at a second acute angle with respect to vertical, said second face having a secured edge secured to said projecting edge of said first face and said second acute angle being different from the first acute angle; recovering stripping fluid and stripped hydrocarbons from the baffles; and recovering stripped catalyst particles from said baffles.