US3351564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of catalytic methanation unit
Assignee: Foster Wheeler Inc
•
Filing: 1966-03-14
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Granted: 1967-11-07
•
Expires: 1986-03-14
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert C Faatz
- 👤 Earl B Powell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:21
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
IN A PROCESS INVOLVING A CATLYTIC METHANATION REACTION IN A REACTION VESSEL OF A SYNTHESIS FEED GAS CONTAINING HYDROGEN AND A SMALL AMOUNT OF CARBON MONOXIDE OR CARBON DIOXIDE WHEREIN THE FEED GAS MUST BE AT A HIGH TEMPERATURE TO INITIATE THE REACTION, AND WHEREIN THE TEMPERATURE LEVEL IS ACHIEVED IN PART BY HEAT EXCHANGE OF THE EFFLUENT GAS FROM THE REACTION VESSEL WITH THE FEED GAS, A SMALL AMOUNT OF CARBON MONOXIDE AND CARBON DIOXIDE BEING DEFINED AS AN INSUFFICIENT AMOUNT TO RAISE THE TEMPERATURE OF THE EFFLUENT GAS TO AT LEAST 50*F. ABOVE THE TEMPERATURE OF THE FEED GAS, THE IMPROVEMENT COMPRISING THE STEPS OF EXOTHERMALLY BURNING A PORTION OF THE HYDROGEN IN THE FEED GAS WITH A CONTROLLED AMOUNT OF AN OXYGEN CONTAINING GAS TO RAISE THE TEMPERATURE LEVEL OF THE EFFLUENT GAS FROM THE REACTION VESSEL, AND PASSING
Claim 2
Dependent Claim
142 words
IN A PROCESS INVOLVING A CATLYTIC METHANATION REACTION IN A REACTION VESSEL OF A SYNTHESIS FEED GAS CONTAINING HYDROGEN AND A SMALL AMOUNT OF CARBON MONOXIDE OR CARBON DIOXIDE WHEREIN THE FEED GAS MUST BE AT A HIGH TEMPERATURE TO INITIATE THE REACTION, AND WHEREIN THE TEMPERATURE LEVEL IS ACHIEVED IN PART BY HEAT EXCHANGE OF THE EFFLUENT GAS FROM THE REACTION VESSEL WITH THE FEED GAS, A SMALL AMOUNT OF CARBON MONOXIDE AND CARBON DIOXIDE BEING DEFINED AS AN INSUFFICIENT AMOUNT TO RAISE THE TEMPERATURE OF THE EFFLUENT GAS TO AT LEAST 50*F. ABOVE THE TEMPERATURE OF THE FEED GAS, THE IMPROVEMENT COMPRISING THE STEPS OF EXOTHERMALLY BURNING A PORTION OF THE HYDROGEN IN THE FEED GAS WITH A CONTROLLED AMOUNT OF AN OXYGEN CONTAINING GAS TO RAISE THE TEMPERATURE LEVEL OF THE EFFLUENT GAS FROM THE REACTION VESSEL, AND PASSING
References Cited (Backward Citations)
US2711419A
Cited
US3088919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |