Continuous catalyst /wax separation method

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(11)

EP 1 754 769 A8

(12)	CORRECTED EUROPEAN PATENT APPLICATION
	Note: Bibliography reflects the latest situation

(15)	Correction information:
	Corrected version no 1 (W1 A1)

(48)	Corrigendum issued on:
	11.04.2007 Bulletin 2007/15

(43)	Date of publication:
	21.02.2007 Bulletin 2007/08

(21)	Application number: 05107539.8

(22)	Date of filing: 16.08.2005

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International Patent Classification (IPC):

C10G 31/09^(2006.01)
C10G 2/00^(2006.01)
B01J 8/00^(2006.01)

C10G 31/10^(2006.01)
C10G 53/02^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA HR MK YU

(71)	Applicant: Research Institute of Petroleum Industry (RIPI)
	18799 Tehran (IR)

(72)	Inventors:
	Khakdaman, Hamid Reza Shariati Street Tajrish, Tehran (IR) Horri, Bahman Amini Karaj, Tehran (IR) Varklani, Hossein Manafi Ferdows Blvd. Sadoghieh Sqr. Tehran (IR) Noori, Sasan Sadraei Zafar St. Shariaty St. Tehran (IR) Jafari, Khairollah Azimieh Karaj Tehran (IR)

(74)	Representative: KEIL & SCHAAFHAUSEN Patentanwälte
	Cronstettenstrasse 66 60322 Frankfurt am Main 60322 Frankfurt am Main (DE)

(54)	Continuous catalyst /wax separation method

(57) An improved Method for the separation of catalyst particles and the wax product from the output slurry of a Fischer-Tropsch bubble column reactor comprising the contact of a hydrocarbon solvent from a cyclic solvent stream with the slurry, wherein the solvent is a hydrocarbon fraction which is pressurized and heated to its supercritical state and the temperature and the pressure of the solvent at the supercritical state are similar to those of the F-T reactor. After the separating of the catalyst from the hydrocarbon mixture of the solvent and the slurry in a catalyst separation section the hydrocarbon solvent and the wax product are separated, whereby the recovered solvent phase is lead to the cyclic solvent stream; which is used after re-pressurizing and re-heating in a supercritical solvent supply module to recycling the hydrocarbon solvent for the contact step. A system for carrying out the method is also disclosed.