US3607125A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reformer tube construction
Assignee: General Electric Co
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Filing: 1968-12-30
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Granted: 1971-09-21
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Expires: 1988-12-30
Abstract
Abstract Reformer tube construction is described within which both the desired endothermic catalyzed chemical reaction and heat transfer from the reaction products to the incoming reactants are accomplished. This reformer tube construction eliminates the need for a hot manifold and comprises (in a coaxial tube arrangement) a centrally located product tube and an outer composite wall spaced therefrom with catalyst occupying the annular space therebetween. The composite outer wall combines an inner impermeable metal tube with an outer protective refractory casing.
Inventors
- 👤 Paul H Kydd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:41
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/06; B01J8/062; B01J8/008; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/384; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00106; B01J2208/00309; B01J2208/00477; B01J2208/00495; B01J2208/0053
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
26 words
The manifold-reactor tube construction as recited in claim 1 wherein the upper end of the inner tube extends through the first manifold to the second manifold.
Claim 2
Dependent Claim
22 words
The manifold-reactor tube construction as recited in claim 1 wherein the manifolds comprise sections of manifold joined together with standard bolted fittings.
Claim 3
Dependent Claim
29 words
The manifold-reactor tube construction as recited in claim 1 wherein the metal liner of the composite wall is joined to the first manifold, said composite wall being suspended thereby.
Claim 4
Dependent Claim
23 words
The manifold-reactor tube construction as recited in claim 1 wherein the first manifold is connected to a source of process gas under pressure.
References Cited (Backward Citations)
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US2472254A
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US2503148A
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US2660519A
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US2577729A
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US2852358A
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US3119671A
Cited
US3270780A
Cited
US3446277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |