Partial oxidation process for producing a stream of hot purified gas
A partial oxidation process is described for the production of a stream of hot clean gas substantially free from particulate matter, ammonia, alkali metal compounds, halides and sulfur-containing gas for use as synthesis gas, reducing gas, or fuel gas. A hydrocarbonaceous fuel comprising a solid carbonaceous fuel with or without liquid hydrocarbonaceous fuel or gaseous hydrocarbon fuel, wherein said hydrocarbonaceous fuel contains halides, alkali metal compounds, sulfur, nitrogen and inorganic ash containing components, is reacted in a gasifier by partial oxidation to produce a hot raw gas stream comprising H{sub 2}, CO, CO{sub 2}, H{sub 2}O, CH{sub 4}, NH{sub 3}, HCl, HF, H{sub 2}S, COS, N{sub 2}, Ar, particulate matter, vapor phase alkali metal compounds, and molten slag. The hot raw gas stream from the gasifier is split into two streams which are separately deslagged, cleaned and recombined. Ammonia in the gas mixture is catalytically disproportionated into N{sub 2} and H{sub 2}. The ammonia-free gas stream is then cooled and halides in the gas stream are reacted with a supplementary alkali metal compound to remove HCl and HF. Alkali metal halides, vaporized alkali metal compounds and residual fine particulate matter are removed from the gas stream by further cooling and filtering. The sulfur-containing gases in the process gas stream are then reacted at high temperature with a regenerable sulfur-reactive mixed metal oxide sulfur sorbent material to produce a sulfided sorbent material which is then separated from the hot clean purified gas stream having a temperature of at least 1000 F. 1 figure.
- Research Organization:
- Texaco Inc
- DOE Contract Number:
- FC21-87MC23277
- Assignee:
- Texaco Inc., White Plains, NY (United States)
- Patent Number(s):
- US 5,401,282/A/
- Application Number:
- PAN: 8-077,270
- OSTI ID:
- 35060
- Resource Relation:
- Other Information: PBD: 28 Mar 1995
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
CARBONACEOUS MATERIALS
PARTIAL OXIDATION PROCESSES
SYNTHESIS GAS
SCRUBBING
FUEL GAS
DEASHING
DESULFURIZATION
DENITRIFICATION
DEMETALLIZATION
HYDROGEN
CARBON MONOXIDE
CARBON DIOXIDE
WATER VAPOR
METHANE
AMMONIA
HYDROCHLORIC ACID
HYDROFLUORIC ACID
HYDROGEN SULFIDES
CARBON OXYSULFIDE
ARGON
ALKALI METAL COMPOUNDS
REMOVAL