SYNTHETIC GAS PRODUCTION METHOD Russian patent published in 2020 - IPC C10G2/00 C01B3/24 C01B3/36 C10G45/02 C01B3/48 

FIELD: chemical or physical processes.

SUBSTANCE: invention relates to a method of producing hydrocarbons. Method is realized by producing first (3) and second (4) partial feed streams from hydrocarbon-containing feed stream (1). At that, first partial feed stream (3) is converted by partial oxidation or autothermal reforming (R) into first stream of synthesis gas (8), and second partial feed stream (4) is converted by steam reforming (D) to second stream of synthesis gas (10). Then combined with first stream of synthesis gas (8) to form third stream of synthesis gas (5), at least first part (11) of which by Fischer—Tropsch synthesis (F) is converted into crude product stream (16) containing hydrocarbons with different chain lengths, from which light hydrocarbons are separated into residual gas (17) to return them to the process and used in partial oxidation or autothermal reforming (R). At least one part (19) of residual gas (17) is used to extract unsaturated hydrocarbons (21) using cryogenic separation methods, to obtain stream (20) which does not contain unsaturated hydrocarbons for use as feedstock for partial oxidation or autothermal reforming (R).

EFFECT: technical result of the invention is higher efficiency of the process.

10 cl, 1 dwg