US3723344A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxo-synthesis gas
Assignee: Texaco Development Corp
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Filing: 1969-11-21
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Granted: 1973-03-27
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Expires: 1989-11-21
Abstract
Abstract Oxo-synthesis gas, i.e. a mixture of carbon monoxide and hydrogen containing substantially equal volumes of hydrogen and carbon monoxide is produced by direct partial oxidation of a hydrocarbon fuel with oxygen followed by noncatalytic reaction with carbon dioxide at a temperature of at least 1,500*F., and preferably in the range of about 1,700* to 2,800*F. in one or more reaction zones.
Inventors
- 👤 B Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:26
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/36; C01B3/06; C01B3/12; C01B3/16; C01B3/22; C01B32/00; C01B32/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
26 words
The process of claim 1 wherein the mole ratio (CO/H2) of the synthesis gas product stream is substantially that required for the synthesis of oxo compounds.
Claim 2
Dependent Claim
32 words
The process of claim 1 wherein the mole ratio (CO/H2) of the synthesis gas product stream leaving the non-catalytic water-gas reverse shift conversion zone is substantially that required for the Fischer-Tropsch process.
Claim 3
Dependent Claim
53 words
The process of claim 1 with the added step of introducing supplemental free-oxygen (95 moles percent O2 or higher) into said noncatalytic adiabatic water-Gas reverse shift conversion zone in an amount sufficient to maintain the reaction temperature in said reverse shift conversion zone at a temperature in the range of 1700* to 2800*F.
Claim 4
Dependent Claim
75 words
The process of claim 1 with the added steps of removing substantially all of the CO2 which may be present in said synthesis gas product stream by processing said product gas stream in a conventional carbon dioxide recovery zone to produce a gas stream comprising at least 95 mole percent CO2, and recycling said CO2 stream to said non-catalytic adiabatic water-gas reverse shift conversion zone as at least a portion of said supplemental CO2 stream.
Claim 5
Dependent Claim
35 words
The process of claim 1 wherein at least a portion of said stream of supplemental carbon dioxide is supplied as a gaseous feedstream from an external source comprising at least 25 mole percent of CO2.
Claim 6
Dependent Claim
104 words
The process of claim 1 with the added steps of introducing a stream of supplemental carbon dioxide and said synthesis gas product stream directly into a second separate unpacked free-flow adiabatic noncatalytic water-gas reverse shift conversion zone wherein said CO2 is reacted with H2 at a temperature of at least 1500*F and at a pressure in the range of about 1 to 350 atmospheres, producing a synthesis gas product stream containing CO, H2, H2O, and CO2 and having a mole ratio (CO/H2) greater than the mole ratio (CO/H2) of the synthesis gas product stream from the first noncatalytic adiabatic water-gas reverse shift conversion zone.
Claim 7
Dependent Claim
58 words
The process of claim 7 with the added step of introducing supplemental free-oxygen (95 mole percent O2 or higher) into said second adiabatic noncatalytic water-gas reverse shift conversion zone in an amount sufficient to maintain the reaction temperature in said second noncatalytic water-gas reverse shift conversion zone at a temperature in the range of about 1700* to 2800*F.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |