SYSTEMS AND METHODS FOR USAGE OF RESIDUE GAS FROM FISCHER-TROPSCH SYNTHESIS IN PROCESS FOR SYNTHETIC LIQUID FUEL PRODUCTION FROM NATURAL GAS Russian patent published in 2015 - IPC C07C27/00 C07C1/04 C10G2/00 C10G35/00 

FIELD: oil and gas industry.

SUBSTANCE: one of alternatives includes: reactor of Fischer-Tropsch synthesis that ensures availability of residue gas source; the first heater for preheating of residue gas; hydrogenation unit for hydrogenising of preheated residue gas; expansion device to reduce pressure of preheated and hydrogenated residue gas; the second heater for preheating of preheated, hydrated and expanded residue gas with receipt of initial gas consisting of residue gas and steam; and reactor of catalytic reforming for performance of initial gas reforming in presence of catalyst. At that the first preheater preheats residue gas up to temperature within the approximate range of 200 - 300°C, expansion device reduces pressure of preheated and hydrogenated residue gas up to the value from approximately 250,000 up to 500,000Pa (from 2.5 up to 5 bar), while the second heater heats preheated, hydrated and expanded residue gas up to temperature within the range of 500-600°C. The invention is also referred to recycling of residue gas from Fischer-Tropsch synthesis.

EFFECT: reduced losses of methane and bringing carbon soot content in the reforming reactor to zero value.

25 cl, 1 dwg