Inventors:
- San Ramon CA, US
Steven Alden Souers - Ocean Springs MS, US
Douglas Gayle McDaniel - Moss Point MS, US
David Lawrence Cooke - San Rafael CA, US
David Michael Bosi - Napa CA, US
International Classification:
B08B 9/08
B08B 5/04
B01J 38/10
Abstract:
Processes for shutting down a hydroprocessing reactor and for removing catalyst from the reactor may comprise shutting off hydrocarbon feed to the reactor, stripping hydrocarbons from the catalyst, cooling the reactor to a first threshold reactor temperature, purging the reactor with Ngas, introducing water into the reactor, and dumping the catalyst from the reactor, wherein the first threshold reactor temperature may be substantially greater than 200 F. In an embodiment, the water may be introduced into the reactor via a quench gas distribution system when the reactor is at a second threshold reactor temperature not greater than 200 F. to cool the reactor to a third threshold reactor temperature not greater than 120 F.