FIELD: oil, gas and coke-chemical industries.
SUBSTANCE: invention relates to an enhanced natural gas processing method using Fischer-Tropsch (FT) process for the synthesis of sulphur-free, clean burning, hydrocarbon fuels, examples of which particularly include diesel and aviation fuel. Method for converting natural gas byproducts to synthetic fuel comprises providing a source of natural gas containing byproducts; extracting byproduct fractions from said natural gas, wherein said byproduct fraction contains ethane, propane, butane and/or pentane plus, providing feedstock containing said byproduct fraction, or a mixture of methane, ethane, propane, butane and/or pentane plus with a high concentration of ethane, propane, butane and pentane plus; reacting the feedstock in a fuel synthesis circuit to form a synthetic fuel, wherein the fuel synthesis circuit comprises a gas-to-liquid conversion unit comprising a synthesis gas generator, a Fisher-Tropsch reactor, and an enhancement circuit, and wherein the reaction of the feedstock in the fuel synthesis circuit comprises: forming a synthesis gas stream rich in hydrogen by feeding said feedstock to a synthesis gas generator, and carrying out a catalytic reaction of said synthesis gas stream in said Fischer-Tropsch reactor; wherein the synthetic fuel comprises at least one of synthetic diesel fuel and synthetic jet fuel. Versions of the method are disclosed.
EFFECT: technical result is increasing yield of synthetic fuel by using natural gas byproducts.
18 cl, 8 dwg, 3 tbl
