US3894141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing nitric oxide
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1972-12-27
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Granted: 1975-07-08
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Expires: 1992-12-27
Abstract
Abstract A process for removing No contaminants from an effluent waste stream deficient in oxygen, the process comprising the step of contacting said effluent with a liquid hydrocarbon at a pressure ranging from 1 to 1000 psia and at a temperature ranging from 0* to 500*C.
Inventors
- 👤 William R Moser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:23
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/46; B01D53/54; B01D53/56
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
18 words
A process according to claim 1 wherein said hydrocarbon is paraffin containing from 3 to 30 carbon atoms.
Claim 2
Dependent Claim
19 words
A process according to claim 1 wherein said hydrocarbon is an alkyl aromatic containing 7 to 25 carbon atoms.
Claim 3
Dependent Claim
19 words
A process according to claim 1 wherein said hydrocarbon is an olefin containing from 2 to 30 carbon atoms.
Claim 4
Dependent Claim
27 words
A process according to claim 1 wherein the pressure in the reaction vessel is maintained between 10 to 80 spi of nitric oxide over the liquid hydrocarbon.
Claim 5
Dependent Claim
24 words
A process according to claim 1 further involving the step of feeding the liquid hydrocarbon after contacting to a combustion process as a fuel.
Claim 6
Dependent Claim
31 words
A process according to claim 1 wherein said liquid hydrocarbon is one selected from the group consisting of cycloheptanes, cyclooctanes, toluene, xylene, ethylbenzene, propylbenzene, tetralin, mesitylene, para-xylene, 2,3-dimethylbutane, 2,3,4-trimethylpentane and cyclohexenes.
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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |