METHOD OF PURIFYING REACTION WATER WHEN PRODUCING HYDROCARBONS Russian patent published in 2015 - IPC C02F1/04 C07C1/04 C10G2/00 

FIELD: chemistry.

SUBSTANCE: method includes feeding reaction water from a typical hydrocarbon synthesis process into a countercurrent stripping column from the top and feeding a hydrocarbon-containing gas from the bottom into the countercurrent stripping column in a direction opposite to that of the reaction water, removing purified water from the bottom of the countercurrent stripping column; wherein the obtained steam-gas mixture from the output at the top of the countercurrent stripping column is fed to a standard process of producing synthesis gas; wherein the countercurrent stripping column has a nozzle whose fractionation capacity is equivalent to at least two to three equilibrium thermodynamic stages, and the hydrocarbon-containing gas is formed from a mixture of convertible gas and at least part of a hydrogen-containing waste gas generated from hydrocarbon synthesis waste gases. Furthermore, the countercurrent stripping column is fitted with a reboiler which heats the countercurrent stripping column from the bottom. The reaction water and the hydrocarbon-containing gas are fed at pressure of 1-5 MPa, wherein the obtained steam-gas mixture from the output at the top of the countercurrent stripping column is further superheated to eliminate droplets of a liquid carried from the column.

EFFECT: use of the present method improves efficiency of purifying reaction water while simultaneously broadening recycling capabilities for products used in water purification, and recycling reaction water hydrocarbons when producing synthesis gas.

4 cl, 1 ex, 2 dwg