Patent ID: 6689273
Filing Date: 2004-02-10
Classification: C10G

Abstract:
A hydrocarbon conversion process which comprises:a.) dividing a feed stream into a number of portions having the same composition and passing each portion into an upper portion of a separate on-stream reaction zone of a multi-reaction zone reaction section of the process, with the reaction section comprising at least two reaction zones of substantially equal configuration and operated at substantially the same conversion conditions, and with each reaction zone containing a catalyst bed comprising hydrocracking catalyst; b.) passing a hydrogen-rich gas stream into a lower portion of each reaction zone and upward through the reaction zone; c.) passing liquid phase hydrocarbons collected at the bottom of each on-stream reaction zone into a single liquid retention zone, and recycling a portion of these hydrocarbons to a catalyst bed of each on-stream reaction zone; and, d.) combining vapor rising out of each onstream reaction zone and passing the resultant combined gas stream to a product recovery section of the process.