Patent US4318696A successfully refreshed from Google Patents.
Patent US3778240A successfully refreshed from Google Patents.
US3778240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coking prevention system
Assignee: INT MATERIALS CORP
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Filing: 1970-06-09
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Granted: 1973-12-11
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Expires: 1990-06-09
Abstract
Abstract In fuel reformation systems of the type wherein fuel and water are pumped through separate delivery lines to a heated conduit in a reaction chamber to be thermally cracked to generate hydrogen and other gases, the relatively hot fuel delivery tube tends to become clogged with coke deposits. In the present system, a slug of water is injected periodically into the fuel delivery tube and this water vaporizes generating a high pressure which is sufficient to scrub the delivery tube of the gasoline and coke deposits present there from the previous cycle, thus maintaining a clean fuel delivery tube.
Inventors
- 👤 R Naiman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:43
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/36
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
44 words
The apparatus defined in claim 1 and further including means for injecting the fuel intermittently into the fuel delivery tube, and means for controlling the fuel and water injections into the fuel delivery tube so that they are out of phase with each other.
Claim 2
Dependent Claim
42 words
The apparatus defined in claim 1 wherein the water injecting means include a source of water, a conduit leading from the source to the fuel delivery tube, a valve in the conduit and means for opening the valve in a periodic manner.
Claim 3
Independent Claim
76 words
The method of minimizing the buildup of carbon deposits in the fuel delivery tube to the reaction chamber of a steam reformation system comprising the steps of injecting a slug of water intermittently into the fuel delivery tube for conversion of the water to high pressure steam within the fuel delivery tube and at the temperature of the delivery tube so that the steam scrubs deposits from the tube and carries them into the reaction chamber.
References Cited (Backward Citations)
US1644146A
Cited
US3446609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |