Patent ID: 6299759
Filing Date: 2001-10-09
Classification: B01J,C10G

Abstract:
A temperature profile and pressure drop control method for hydroprocessing, comprising:(a) injecting a stream of a hydrogen containing gas and a first portion of a liquid hydrocarbon feed into at least one hydroprocessing reactor, wherein the hydrocarbon feed comprises a first and second portion, the reactor having(i) an upstream end and a downstream end with the stream being injected into the reactor's upstream end,(ii) a plurality of successive reaction zones distributed along the reactor between the upstream and downstream end zones, each reaction zone having a bed of hydroprocessing catalyst contained therein, and(iii) a plurality of interstage quench zones, the quench zones being distributed along the reactor and each being situated between successive reaction zones;(b) introducing liquid hydrocarbon feed into at least one quench zone; and(c) injecting a quench gas into each quench zone, the second portion of the liquid hydrocarbon feed and the quench gas each being injected in an amount sufficient to control the reactor's temperature profile and pressure drop.