FIELD: chemistry.
SUBSTANCE: invention relates to an apparatus and a method of producing a stream of a hydrocarbon product from a stream of gaseous hydrocarbon material. Method includes the following steps: adding feed stream (14) to synthesis gas production unit (16) to obtain synthesis gas stream (32) by reforming and/or partial oxidation of feed stream (14); introducing synthesis gas stream (32) into Fischer-Tropsch synthesis unit (18) to obtain hydrocarbon product stream (12); formation of Fischer-Tropsch synthesis gas flow (34) from Fischer-Tropsch synthesis unit (18); separation of Fischer-Tropsch synthesis effluent gas flow (34) into Fischer-Tropsch synthesis waste gas recirculating stream (42) and tail gas stream (38) of Fischer-Tropsch synthesis; recycling the Fischer-Tropsch synthesis effluent gas stream (42) into a synthesis gas stream (32) supplied to the Fischer-Tropsch synthesis unit (18); at least partial removal of carbon dioxide from first stream (44) formed from stream (38) of tail gas of Fischer-Tropsch synthesis, in unit (22) for removal of carbon dioxide to form stream (50), depleted of carbon dioxide; formation of tail gas recirculating stream (36) from stream (50) depleted of carbon dioxide; formation of bypass flow (46) from tail gas stream (38) to bypass carbon dioxide removal unit (22); mixing stream (50) depleted of carbon dioxide with bypass flow (46) with formation of tail gas recirculating flow (36); introduction of tail gas recirculating stream (36) into synthesis gas production unit (16) and/or synthesis gas stream (32).
EFFECT: technical result consists in increasing conversion of carbon into a liquid hydrocarbon product in a Fischer-Tropsch synthesis unit, with different process conditions, and/or total consumption of fuel gas, and/or composition of source gas, without significant change in equipment for implementing the method.
14 cl, 2 dwg, 2 ex
