US2623007A
Expired / Lapsed
US
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Catalytic desulfurization of hydrocarbons
Assignee: Phillips Petroleum Co
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Filing: 1949-08-30
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Granted: 1952-12-23
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Expires: 1969-08-30
Abstract
No abstract record available.
Inventors
- 👤 John W Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:56
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; B; B01; B01J; B01J21/00; B01J21/16; C10G29/00; C10G29/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN THE PROCESS FOR THE CATALYTIC DESULFURIZATION OF A HYDROCARBON FRACTION IN THE PRESENCE OF A DESULFURIZATION CATALYST CONTAINING ESSENTIALLY OF 30-50% BY WEIGHT CHROMIA, 32-60% BY WEIGHT ALUMINA, AND 4-18% BY WEIGHT BERYLLIA, THE IMPROVEMENT WHICH CONSISTS PRETREATING SAID CATALYST BY CONTACTING SAID CATALYST AT AN ELEVATED TEMPERATURE WITH A VAPORIZED TREATING MATERIAL CONSISTING ESSENTIALLY OF A SULFUR-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF MERCAPTANS, THIOPHENES AND THIOPHANES AND SUBSEQUENTLY CONTACTING SAID CATALYST WITH SAID HYDROCARBON FRACTION TO BE DESULFURIZED.
Claim 2
Dependent Claim
82 words
IN THE PROCESS FOR THE CATALYTIC DESULFURIZATION OF A HYDROCARBON FRACTION IN THE PRESENCE OF A DESULFURIZATION CATALYST CONTAINING ESSENTIALLY OF 30-50% BY WEIGHT CHROMIA, 32-60% BY WEIGHT ALUMINA, AND 4-18% BY WEIGHT BERYLLIA, THE IMPROVEMENT WHICH CONSISTS PRETREATING SAID CATALYST BY CONTACTING SAID CATALYST AT AN ELEVATED TEMPERATURE WITH A VAPORIZED TREATING MATERIAL CONSISTING ESSENTIALLY OF A SULFUR-CONTAINING COMPOUND SELECTED FROM THE GROUP CONSISTING OF MERCAPTANS, THIOPHENES AND THIOPHANES AND SUBSEQUENTLY CONTACTING SAID CATALYST WITH SAID HYDROCARBON FRACTION TO BE DESULFURIZED.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |