PURPOSE: To obtain a clean gas stream by reacting a hydrocarbonaceous fuel with a gas contg. free oxygen by partial oxidation and removing hydrogen halide, hydrogen cyanide, sulfur-contg. gas, fine particulate matter or the like from the produced raw gas stream.
CONSTITUTION: A hydrocarbonaceous fuel feedstock, such as a liquid hydrocarbonaceous fuel (emulsion) and an aqueous slurry of petroleum coke, is reacted with a gas contg. free oxygen in a freely fluidized vertical partial oxidation gasifier with reflactory lining to produce a hot raw gas stream. Next, after cooling to about 540-700°C in a gas cooling zone, splash-accompanying fine particulate matter is separated from the gas stream. Next, an alkali metal compound is fed into the gas stream and is reacted with contained hydrogen halide, hydrogen cyanide or the like and fine particulate matter or the like is filtered after cooling. Subsequently, a sulfur-contg. gas in the gas stream is removed by adsorption with a mixed metal oxide adsorbent contg. sulfur- reactive oxide to obtain a clean synthesis gas, a reducing gas or a fuel gas without impurities.
AREN MOORISU ROBIN
JIEIMUZU KENESU URUFUENBAAGAA
ROBAATO MAREI SAJITSUTO
