PROCESS FOR PRODUCING CLEAN SYNTHESIS OR FUEL GAS

摘要

1519090 Synthesis gas generator TEXACO DEVELOPMENT CORP 2 Nov 1976 [22 Dec 1975 (3)] 45428/76 Heading C5E A process for the production of clean synthesis gas or fuel gas comprises (a) partial oxidation of a feed comprising a dispersion of particulate carbon in a liquid hydrocarbonaceous fuel with a freeoxygen-containing gas in a free flow, unpacked gas generator, at a temperature of from 1300 to 3000‹F., and a pressure of from 1 to 250 atmospheres, to produce an effluent gas stream comprising H 2 , CO, CO 2 , H 2 O and entrained particulate carbon; (b) cooling the effluent gas stream in a quench zone to a temperature of from 300 to 900‹F., but above the dew point of water in the effluent gas stream, and simultaneously removing the entrained particulate carbon, by discharging the effluent gas stream directly into a body of immersion fluid comprising a dispersion of particulate carbon in liquid hydrocarbonaceous fuel, and recovering a clean gaseous stream comprising H 2 , CO, CO 2 , and H 2 O; (c) cooling at least a portion of the thus heated immersion fluid to a temperature of from 300 to 850‹F. by indirect heat exchange, and recycling at least a portion of the resulting cooled immersion fluid to the quench zone; and (d) introducing a portion of the hot immersion fluid produced in step (b) or a portion of the cooled immersion fluid into the gas generator as a portion of the feed. The partial oxidation may be carried out in the presence of a temperature moderator such as H 2 O, CO 2 , flue gas or recycle gas. The clean gaseous stream may be further purified by scrubbing with liquid hydrocarbonaceous fuel or water, and the scrubbing liquid may be recycled into the gasifier.