Patent ID: 6800664
Filing Date: 2004-10-05
Classification: B01J,C10G

Abstract:
A method for producing hydrocarbonaceous products from synthesis gas in a multiphase catalytic system, comprising:(a) providing a reactor system comprising separate first and second reaction zones, each reaction zone comprising a liquid phase and a solid phase containing a catalyst, the first and second reaction zones being in fluid communication with each other via a lower fluid flow passage and an upper fluid flow passage, said each flow passage having an inlet and an outlet; (b) feeding a first gas comprising H2 and CO into the bottom of said first reaction zone and a second gas comprising H2 and CO into the bottom of second reaction zone such that the superficial gas velocity in the first reaction zone is greater than the superficial gas velocity in the second reaction zone and a pressure differential exists across at least said lower fluid flow passage; and (c) creating a liquid circulation from the first reaction zone through the upper fluid flow passage to the second reaction zone and from the second reaction zone through the lower fluid flow passage to the first reaction zone by said pressure differential; and (d) controlling the liquid circulation to achieve a desired liquid circulation velocity.