US3897303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated process of ammonia production and biosynthesis
Assignee: Phillips Petroleum Co
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Filing: 1974-01-23
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Granted: 1975-07-29
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Expires: 1994-01-23
Abstract
Abstract An integrated process for the production of cellular protein material and ammonia. Methane is subjected to partial oxidation to produce methanol and formaldehyde which products are sent to a fermentor providing a source of carbon for fermentation which produces cellular protein. The residual gases from the partial oxidation constitute the feed to an ammonia synthesis operation and a part of the ammonia produced is used in the fermentation.
Inventors
- 👤 Fred T Sherk
- 👤 Donald O Hitzman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:27
CPC Classifications
C; C12; C12N; C12N1/00; C12N1/32; C01; C01C; C01C1/00; C01C1/02; C01C1/08; Y; Y02; Y02P; Y02P20/00; Y02P20/10; Y10; Y10S; Y10S435/00; Y10S435/8215; Y10S435/822; Y10S435/911
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
69 words
A PROCESS WHICH COMPRISES SUBJECTING METHANE TO PARTIAL OXIDATION IN THE PRESENCE OF AIR, REMOVING WATER-SOLUBLE PRODUCTS OF SAID OXIDATION INCLUDING METHANOL AND FORMALDEHYDE, SUBJECTING SAID WATER-SOLUBLE OXIDATION PRODUCTS TO MICROBIAL FERMENTATION, RECOVERING A PROTEINACEOUS CELLULAR PRODUCT FROM SAID FERMENTATION, PASSING NON-WATER SOLUBLE GASEOUS PRODUCTS OF SAID OXIDATION TO AN AMMONIA SYNTHESIS OPERATION, AND RECYCLING AT LEAST A PORTION OF AMMONIA FROM SAID SYNTHESIS OPERATION TO SAID MICROBIAL FERMETATION.
Claim 2
Dependent Claim
69 words
A PROCESS WHICH COMPRISES SUBJECTING METHANE TO PARTIAL OXIDATION IN THE PRESENCE OF AIR, REMOVING WATER-SOLUBLE PRODUCTS OF SAID OXIDATION INCLUDING METHANOL AND FORMALDEHYDE, SUBJECTING SAID WATER-SOLUBLE OXIDATION PRODUCTS TO MICROBIAL FERMENTATION, RECOVERING A PROTEINACEOUS CELLULAR PRODUCT FROM SAID FERMENTATION, PASSING NON-WATER SOLUBLE GASEOUS PRODUCTS OF SAID OXIDATION TO AN AMMONIA SYNTHESIS OPERATION, AND RECYCLING AT LEAST A PORTION OF AMMONIA FROM SAID SYNTHESIS OPERATION TO SAID MICROBIAL FERMETATION.
Claim 3
Dependent Claim
24 words
A process in accordance with claim 1 wherein at least a portion of the non-water soluble oxidation products are recycled to the oxidation step.
References Cited (Backward Citations)
US3546071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |