UTILIZATION OF WASTE WATER BY FISHER-TROPSH METHOD Russian patent published in 2005 - IPC

FIELD: petroleum chemistry.

SUBSTANCE: waste water from Fisher-Tropsh synthesis reactor is mixed with carbon for obtaining carbon-water suspension which is directed to gasifier and is subjected to reaction with water steam and oxygen at high temperature and pressure for obtaining synthesis-gas. Waste water may be returned to suspension preparation stage where carbon is ground and is mixed with process water and waste water for forming the suspension, after which this suspension is delivered to gasifier where it is subjected to reaction with water steam at high temperature and pressure for obtaining synthesis-gas. Method of obtaining the hydrocarbons is described when synthesis-gas is brought in contact with catalyst for synthesis of hydrocarbon for forming reaction products and waste water which is separated from reaction products and is returned to recycle for mixing with carbon and forming the suspension.

EFFECT: possibility of obtaining closed recirculation cycle of waste water from Fisher-Tropsh reactor; reduction of operational expenses.

10 cl, 1 dwg