초록 ▼

The hot process gas stream from the partial oxidation of sulfur-containing heavy liquid hydrocarbonaceous fuel and/or sulfur-containing solid carbonaceous fuel comprising gaseous mixtures of H2+CO, sulfur-containing gases, entrained particulate carbon, and molten slag is passed through the unobstruc

The hot process gas stream from the partial oxidation of sulfur-containing heavy liquid hydrocarbonaceous fuel and/or sulfur-containing solid carbonaceous fuel comprising gaseous mixtures of H2+CO, sulfur-containing gases, entrained particulate carbon, and molten slag is passed through the unobstructed central passage of a radiant cooler where the temperature is reduced to a temperature in the range of about 1800°F. to 1200°F. From about 0 to 95 wt. % of the molten slag and/or entrained material may be removed from the hot process gas stream prior to the radiant cooler with substantially no reduction in temperature of the process gas stream. In the radiant cooler, after substantially all of the molten slag has solidified, the sulfur-containing gases are contacted with a calcium-containing material to produce calcium sulfide. A partially cooled stream of synthesis gas, reducing gas, or fuel gas containing entrained calcium sulfide particulate matter, particulate carbon, and solidified slag leaves the radiant cooler containing a greatly reduced amount of sulfur-containing gases.

대표청구항 ▼

A continuous process for the production of desulfurized synthesis gas, fuel gas, or reducing gas comprising: (1) reacting sulfur-containing heavy liquid hydrocarbonaceous fuel and/or sulfur-containing solid carbonaceous fuel by partial oxidation with a free-oxygen containing gas and in the presence

A continuous process for the production of desulfurized synthesis gas, fuel gas, or reducing gas comprising: (1) reacting sulfur-containing heavy liquid hydrocarbonaceous fuel and/or sulfur-containing solid carbonaceous fuel by partial oxidation with a free-oxygen containing gas and in the presence of a temperature moderator in the free-flow refractory lined reaction zone of a gas generator at an autogenous temperature in the range of about 1900°F and above the ash-fusion temperature of the slag formed in the reaction zone, and a pressure in the range of about 2 to 250 atmospheres to produce a hot stream of synthesis gas, reducing gas, or fuel gas comprising H2, CO, CO2, H2S, COS and at least one gaseous material selected from the group consisting of H2O, N2, CH4, NH3, Ar, and containing entrained material comprising particulate carbon, and molten slag; (2) passing the hot gas stream from (1) through an unobstructed central passage of a radiant cooler, thereby cooling the process gas stream to a temperature in the range of about 1800°F. to 1200°F. while solidifying the molten slag; (3) contacting the sulfur-containing gases in the process gas stream in said radiant cooler with a calcium-containing material after substantially all of the said molten slag has solidified, wherein said calcium-containing material is introduced into the cooled process gas stream at one or more locations within said radiant cooler, the weight ratio of calcium-containing material to sulfur is in the range of about 0.8 to 5.0 to 1.0; and the partial pressure of oxygen in the radiant cooler is in the range of less than about 1.7×1031 15 atmospheres at a temperature of about 1800°F. and less than about 5.3×1031 23 atmospheres at a temperature of about 1200°F.; (4) reacting in said radiant cooler said calcium-containing material with sulfur-containing constituents in said gas stream to produce particulate matter comprising calcium sulfide; and (5) discharging from said radiant cooler a partially cooled process stream of synthesis gas, reducing gas, or fuel gas containing entrained calcium sulfide particulate matter, particulate carbon, and slag; and in comparison with a gas stream produced without the introduction of said calcium-containing additive in (3), said cooled process gas stream contains a reduced amount of sulfur-containing gases.