US2904575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of methanol
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1957-11-21
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Granted: 1959-09-15
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Expires: 1977-11-21
Abstract
No abstract record available.
Inventors
- 👤 Nick P Peet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:57
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/15; C07C29/151; C07C29/1516; C07C29/1518; C07C29/153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A METHOD FOR PRODUCING METHANOL WHICH COMPRISES PASSING A FIRST PORTION OF AN ADMIXTURE OF SYNTHESIS GAS COMPRISING CARBON MONOXIDE AND HYDROGEN WITH RECYCLE GAS IN PARALLEL THROUGH A PLURALITY OF SERIALLY INTERCONNECTED REACTION ZONES EACH CONTAINING A BED OF CONVERSION CATALYST AT SUITABLE REACTION CONDITIONS TO PROVIDE A CONVERSION FROM ABOUT 5 TO ABOUT 6 PERCENT IN EACH ZONE AND TO PRODUCE IN EACH ZONE A PRODUCT CONTAINING METHANOL AND RECYCLE GAS, THE TOTAL PRODUCE FROM EACH REACTION ZONE PASSING IN SERIES TO THE NEXT PRECEDING REACTION ZONE, REMOVING HEAT OF REACTION EXTERNALLY AND BETWEEN EACH OF SAID REACTION ZONES FROM EACH OF SAID PRODUCTS, INTRODUCING A SECOND PORTION OF SAID ADMIXTURE INTO THE LAST OF SAID REACTION ZONES, AND RECOVERING FROM THE FIRST OF SAID REACTION ZONES THE TOTAL PRODUCTS FROM SAID PLURALITY OF REACTION ZONES WHEREBY THE AMOUNT OF RECYCLE GAS IS SUBSTANTIALLY DIMINISHED OVER THAT HERETOFORE REQUIRED AND INCREASED CONVERSIONS ARE OBTAINED.
Claim 2
Independent Claim
156 words
A METHOD FOR PRODUCING METHANOL WHICH COMPRISES PASSING A FIRST PORTION OF AN ADMIXTURE OF SYNTHESIS GAS COMPRISING CARBON MONOXIDE AND HYDROGEN WITH RECYCLE GAS IN PARALLEL THROUGH A PLURALITY OF SERIALLY INTERCONNECTED REACTION ZONES EACH CONTAINING A BED OF CONVERSION CATALYST AT SUITABLE REACTION CONDITIONS TO PROVIDE A CONVERSION FROM ABOUT 5 TO ABOUT 6 PERCENT IN EACH ZONE AND TO PRODUCE IN EACH ZONE A PRODUCT CONTAINING METHANOL AND RECYCLE GAS, THE TOTAL PRODUCE FROM EACH REACTION ZONE PASSING IN SERIES TO THE NEXT PRECEDING REACTION ZONE, REMOVING HEAT OF REACTION EXTERNALLY AND BETWEEN EACH OF SAID REACTION ZONES FROM EACH OF SAID PRODUCTS, INTRODUCING A SECOND PORTION OF SAID ADMIXTURE INTO THE LAST OF SAID REACTION ZONES, AND RECOVERING FROM THE FIRST OF SAID REACTION ZONES THE TOTAL PRODUCTS FROM SAID PLURALITY OF REACTION ZONES WHEREBY THE AMOUNT OF RECYCLE GAS IS SUBSTANTIALLY DIMINISHED OVER THAT HERETOFORE REQUIRED AND INCREASED CONVERSIONS ARE OBTAINED.
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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |