US2913405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization of olefinic gasoline
Assignee: Houdry Process Corp
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Filing: 1957-08-27
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Granted: 1959-11-17
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Expires: 1977-08-27
Abstract
No abstract record available.
Inventors
- 👤 Shalit Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:13
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G2400/00; C10G2400/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
THE METHOD OF DESULFURIZING AN OLEFIN-CONTAINING CRACKED GASOLINE FRACTION HAVING A LOW CONTENT OF ORGANIC NITROGEN BASES CORRESPONDING TO LESS THAN 140 PARTS N PER MILLION PARTS OF HYDROCARBONS BY WEIGHT, WHICH COMPRISES SUBJECTING SUCH A FRACTION AS CHARGED TO CATALYST HYDRODESULFURIZATION WHILE ADDING TO SUCH CHARGE AN ORGANIC NIRTOGEN BASE TO INCREASE THE NITROGEN CONTENT OF THE CHARGE TO AT LEAST 100 PARTS PER MILLION BUT NOT IN EXCESS OF 2500 PARTS PER MILLION, THE QUANATITY OF NITROGEN COMPOUND THUS ADDED BEING CORRELATED WITH THE SULFUR CONTENT OF THE CHARGE SO AS TO PROVIDE A TOTAL OF AT LEAST 1 ATOM OF NITROGEN FOR EVERY 25 ATOMS OF SULFUR IN THE CHARGE AND NOT IN EXCESS OF 1 ATOM OF NITROGEN FOAR EACH 2 ATOMS OF SULFUR.
Claim 2
Independent Claim
128 words
THE METHOD OF DESULFURIZING AN OLEFIN-CONTAINING CRACKED GASOLINE FRACTION HAVING A LOW CONTENT OF ORGANIC NITROGEN BASES CORRESPONDING TO LESS THAN 140 PARTS N PER MILLION PARTS OF HYDROCARBONS BY WEIGHT, WHICH COMPRISES SUBJECTING SUCH A FRACTION AS CHARGED TO CATALYST HYDRODESULFURIZATION WHILE ADDING TO SUCH CHARGE AN ORGANIC NIRTOGEN BASE TO INCREASE THE NITROGEN CONTENT OF THE CHARGE TO AT LEAST 100 PARTS PER MILLION BUT NOT IN EXCESS OF 2500 PARTS PER MILLION, THE QUANATITY OF NITROGEN COMPOUND THUS ADDED BEING CORRELATED WITH THE SULFUR CONTENT OF THE CHARGE SO AS TO PROVIDE A TOTAL OF AT LEAST 1 ATOM OF NITROGEN FOR EVERY 25 ATOMS OF SULFUR IN THE CHARGE AND NOT IN EXCESS OF 1 ATOM OF NITROGEN FOAR EACH 2 ATOMS OF SULFUR.
References Cited (Backward Citations)
US2790751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |