SINGLE-LOOP MULTI-STAGE FUEL PRODUCTION Russian patent published in 2016 - IPC C10G2/00 C10L1/02 C07C2/00 

FIELD: chemistry.

SUBSTANCE: method of producing fuel from synthesis gas, which includes the following steps: a) passing the synthesis gas through a first reactor to convert synthesis gas to methanol and water, which produces a first exit stream; b) passing the first exit stream through a second reactor to convert methanol to dimethyl ether, which produces a second exit stream; c) passing the second exit stream through a third reactor to convert methanol and dimethyl ether to fuel and heavy gasoline, which produces a third exit stream; d) passing the third exit stream through a fourth reactor to convert the heavy gasoline to isoparaffins, naphthenes and aromatic compounds with a low degree of substitution, which produces a fourth exit stream; and e) recycling the unreacted synthesis gas in the fourth exit stream to the first reactor. No removal or separation of the first, second or third exit streams is carried out during the process. A version of the method and a system for producing fuel are also disclosed.

EFFECT: obtaining synthetic fuel from synthesis gas in a four-stage reactor apparatus with a single recycling loop, which generates the required heat capacity to reduce the high heat dissipation of reactions and providing reactants and reaction conditions for an efficient process.

54 cl, 4 tbl, 6 dwg, 7 ex