Process for synthesising hydrocarbons

Details Process for synthesising hydrocarbons Process for synthesising hydrocarbons

2004-08-20

2008-10-07

Parsa, Jafar (Department: 1621)

Chemistry: fischer-tropsch processes; or purification or recover

Plural zones each having a fischer-tropsch reaction

C518S705000, C585S709000, C208S108000

Reexamination Certificate

active

07432310

ABSTRACT:
A process (10) for synthesising hydrocarbons includes feeding a gaseous feedstock (18) comprising hydrogen and carbon monoxide, into a first Fischer-Tropsch reaction stage (12) which is a three-phase low temperature catalytic Fischer-Tropsch reaction stage, and allowing the hydrogen and carbon monoxide partially to react catalytically in the first reaction stage (12) to form hydrocarbons. At least a portion of a tail gas (32) which includes unreacted hydrogen and carbon monoxide obtained from the first reaction stage, is fed into a second Fischer-Tropsch reaction stage (42) which is a two-phase high temperature catalytic Fischer-Tropsch reaction stage. The hydrogen and carbon monoxide are allowed at least partially to react catalytically in the second reaction stage (42) to form gaseous hydrocarbons.

REFERENCES:
patent: 4833170 (1989-05-01), Agee
patent: 6156809 (2000-12-01), Clark et al.

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