US2537756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Desulfurization of hydrocarbons
Assignee: Porocel Industries LLC
•
Filing: 1947-11-03
•
Granted: 1951-01-09
•
Expires: 1967-11-03
Abstract
No abstract record available.
Inventors
- 👤 Heinemann Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:53
CPC Classifications
C; C10; C10G; C10G25/00; C10G17/00; C10G17/095; C10G29/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
A METHOD OF DESULFURIZING HYDROCARBON DISTILLATE, WHICH COMPRISES CONTACTING SAID DISTILLATE WITH ACTIVATED BAUXITE AT A TEMPERATURE BETWEEN 50* F. AND 200* F. TO ADSORB THIOPHENE AND MERCAPTAN TYPE SULFUR COMPOUNDS, THEREAFTER CONTACTING THE PARTIALLY DESULFURIZED DISTILLATE WITH ACTIVATED BAUXITE AT A TEMPERATURE BETWEEN 600* F. AND 850* F. TO DECOMPOSE THE REMAINING SULFUR COMPOUNDS TO HYDROGEN SULFIDE, AND REMOVING THE HYDROGEN SULFIDE FROM THE HYDROCARBON DISTILLATE.
Claim 2
Independent Claim
67 words
A METHOD OF DESULFURIZING HYDROCARBON DISTILLATE, WHICH COMPRISES CONTACTING SAID DISTILLATE WITH ACTIVATED BAUXITE AT A TEMPERATURE BETWEEN 50* F. AND 200* F. TO ADSORB THIOPHENE AND MERCAPTAN TYPE SULFUR COMPOUNDS, THEREAFTER CONTACTING THE PARTIALLY DESULFURIZED DISTILLATE WITH ACTIVATED BAUXITE AT A TEMPERATURE BETWEEN 600* F. AND 850* F. TO DECOMPOSE THE REMAINING SULFUR COMPOUNDS TO HYDROGEN SULFIDE, AND REMOVING THE HYDROGEN SULFIDE FROM THE HYDROCARBON DISTILLATE.
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) | 1954-01-08 | 1954-07-10 | 1955-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-08 | 1958-07-10 | 1959-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-08 | 1962-07-10 | 1963-01-09 | $7700.00 | Window Closed / Lapsed |