Patent ID: 9567537
Date: 2017-02-14
CPC Classifications: B01J,C10G

Claim:
1. An apparatus for catalytically cracking hydrocarbons comprising: an FCC reactor for contacting a hydrocarbon feed stream with catalyst to provide a cracked stream; a main fractionation column in downstream communication with said FCC reactor for fractionating said cracked stream into products including a slurry oil stream; a slurry heater in downstream communication with a main outlet in a bottom of said main fractionation column for heating said slurry oil stream; a vacuum separator in downstream communication with said slurry heater for separating said heated slurry oil stream into a cycle oil stream and a heavy stream under vacuum pressure; a receiver in communication with a separator overhead line of said vacuum separator; a vacuum generation device in communication with a receiver overhead line of said receiver; and a receiver bottoms line of said receiver for providing a recycle stream.