Patent ID: 6623537
Filing Date: 2003-09-23
Classification: B01D,C01B,C10K,Y02P

Abstract:
A process for the recovery and reuse of carbon soot accompanying raw syngas produced during the partial oxidation gasification reaction of hydrocarbonaceous feedstocks, comprising:a) removing the carbon soot from the raw syngas by scrubbing with water in the presence of a first surfactant to form a concentrated carbon soot/water mixture and to improve the pumpability of the mixture by reducing overall bulk viscosity; b) contacting the carbon soot/water mixture with a scrubbing oil in the presence of a second surfactant to render the soot particles hydrophobic and oleophilic and to form an intimate mixture of carbon soot/oil/water; c) separating the carbon soot/oil/water mixture into a carbon soot/oil mixture and a vaporized soot-free water by means of a high pressure flash separation operation; d) recycling at least a portion of the vaporized soot-free water to the partial oxidation gasification reaction to serve as a temperature moderator; and e) recycling the carbon soot/oil mixture to the partial oxidation gasification reaction wherein it is used as a fuel.