High temperature desulfurization of synthesis gas
This patent describes a continuous process for the production of desulfurized synthesis gas, fuel gas, or reducing gas. It includes: 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 to produce a hot steam of synthesis gas, reducing gas, or fuel gas comprising H{sub 2}, CO, CO{sub 2}, H{sub 2}S, COS and at least one gaseous material selected form the group consisting of H{sub 2}O, N{sub 2}, CH{sub 4}, NH{sub 3}, Ar, and containing entrained material comprising particulate carbon, and molten slag; cooling the process gas stream to a temperature in the range of about 1800{degrees}F. to 1200{degrees} F. while solidifying the molten slag; contacting the sulfur-containing gas in the process gas stream in the radiant cooler with a calcium-containing material after substantially all of the molten slag has solidified; reacting in the radiant cooler the calcium-containing material with sulfur-containing constituents in the gas stream to produce particulate matter comprising calcium sulfide; and discharging from the radiant cooler a partially cooled process stream of synthesis 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 the calcium containing additive.
- Assignee:
- Texaco Inc., White Plains, NY
- Patent Number(s):
- A; US 4880439
- Application Number:
- PPN: US 7-190707A
- OSTI ID:
- 6961843
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
030300* -- Natural Gas-- Drilling
Production
& Processing
030800 -- Natural Gas-- Environmental Aspects
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION ABATEMENT
CHEMICAL REACTIONS
DESULFURIZATION
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
PARTIAL OXIDATION PROCESSES
POLLUTION ABATEMENT
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES