US3954422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-stage reformed-gas generator
Assignee: Siemens AG
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Filing: 1974-02-26
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Granted: 1976-05-04
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Expires: 1994-02-26
Abstract
Abstract A multi-stage reformed-gas generator(fuel converter) of the type having at least two reaction chambers, each of which containing a catalyst, with the two being connected in series in a flow direction, and means for supplying a gas acting as an oxygen carrier to the reaction chambers and means for supplying fuel gas through the chambers in the flow direction. The catalyst is arranged in the reaction chambers between gas permeable surfaces which separate the reaction chambers from each other and by means of which the gas serving as an oxygen carrier can be fed to the reaction chambers, in which the oxygen carrier gas and the fuel gas are contacted with each other substantially in perpendicular direction to their respective flows in the chamber.
Inventors
- 👤 Hellmuth Mentschel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:51
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/02; B01J8/04; B01J8/0446; B01J8/0461; B01J8/0465; B01J35/00; B01J35/50; B01J35/51; B01J35/52; C; C10; C10G; C10G11/00; C10G11/02; C10G11/20; C10G11/22; F; F02; F02M; F02M27/00; F02M27/02; Y; Y10; Y10S; Y10S48/00; Y10S48/05
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
179 words
In a multi-stage reformed gas generator having at least two reaction chambers each containing a charge of catalyst material connected in series in the flow direction, the flow through each of said two reaction chambers being in a first direction, said generator also including means supplying a gas serving as an oxygen carrier to each of the reaction chambers and means for supplying fuel gas and causing a flow of said fuel gas through said chambers in said first direction wherein the improvement comprises: a. gas permeable means separating said reaction chambers, said gas permeable means constructed to supply said gas serving as an oxygen carrier to said fuel gas flowing through said chambers said oxygen carrier gas in said gas permeable means flowing in a second direction essentially perpendicular to said first direction whereby the oxygen containing gas and fuel gas are contacted with each other substantially in perpendicular direction to their respective flows in said chamber; and wherein b. said means for supplying a gas serving as an oxygen carrier are connected to said gas permeable means.
Claim 2
Dependent Claim
179 words
In a multi-stage reformed gas generator having at least two reaction chambers each containing a charge of catalyst material connected in series in the flow direction, the flow through each of said two reaction chambers being in a first direction, said generator also including means supplying a gas serving as an oxygen carrier to each of the reaction chambers and means for supplying fuel gas and causing a flow of said fuel gas through said chambers in said first direction wherein the improvement comprises: a. gas permeable means separating said reaction chambers, said gas permeable means constructed to supply said gas serving as an oxygen carrier to said fuel gas flowing through said chambers said oxygen carrier gas in said gas permeable means flowing in a second direction essentially perpendicular to said first direction whereby the oxygen containing gas and fuel gas are contacted with each other substantially in perpendicular direction to their respective flows in said chamber; and wherein b. said means for supplying a gas serving as an oxygen carrier are connected to said gas permeable means.
Claim 3
Dependent Claim
18 words
A multi-stage reformed-gas generator according to claim 1 wherein said gas permeable means comprise a gas permeable fabric.
Claim 4
Dependent Claim
16 words
A multi-stage reformed-gas generator according to claim 1 wherein said gas permeable means comprise perforated sheets.
Claim 5
Dependent Claim
24 words
A multi-stage reformed-gas generator according to claim 1 wherein the catalyst in each reaction chamber comprises a piled charge of ceramic porous hollow spheres.
Claim 6
Dependent Claim
35 words
A multi-stage reformed-gas generator according to claim 4 wherein said spheres consist of spherical corumdum with a wall thickness of between 0.1 and 0.5 mm and having a diameter of between 1 and 4 mm.
Claim 7
Dependent Claim
29 words
A multi-stage reformed-gas generator according to claim 5 wherein the wall thickness of said hollow spheres is approximately 0.3 mm and the diameter is between 1.2 and 2.5. mm.
Claim 8
Dependent Claim
19 words
A multi-stage reformed gas generator according to claim 4 and further including catalyst material impregnated in said hollow spheres.
Claim 9
Dependent Claim
18 words
A multi-stage reformed-gas generator according to claim 6 and further including catalyst material impregnated in said hollow spheres.
Claim 10
Dependent Claim
19 words
A multi-stage reformed-gas generator according to claim 4 wherein said hollow spheres are all of essentially the same diameter.
Claim 11
Dependent Claim
19 words
A multi-stage reformed-gas generator according to claim 6 wherein said hollow spheres are all of essentially the same diameter.
Claim 12
Dependent Claim
44 words
A multi-stage reformed-gas generator according to claim 1 wherein said gas permeable means are arranged to distribute the fed-in gas serving as an oxygen carrier uniformly over the entire flow cross section of the reaction gas within the catalyst, in the individual reaction chambers.
Claim 13
Dependent Claim
23 words
A multi-stage reformed-gas generator according to claim 11 wherein said gas permeable means comprises a gas permeable fabric made of stainless steel wire.
Claim 14
Dependent Claim
27 words
A multi-stage reformed-gas generator according to claim 12 wherein the mesh of the gas permeable fabric is smaller than the diameter of the particles of catalytic material.
Claim 15
Dependent Claim
78 words
A multi-stage reformed-gas generator according to claim 1 wherein the reaction chambers and gas permeable means disposed between the chambers are of a cylindrical shape with the reaction chambers arranged concentrically with each other and wherein said means for supplying gas serving as an oxygen carrier are coupled to said gas permeable means at at least one end of the cylinder so formed through ring lines which are in communication with the surface of the gas permeable means.
Claim 16
Dependent Claim
77 words
A multi-stage reformed-gas generator according to claim 1 wherein the reaction chambers and gas permeable means disposed between chambers are of a cylindrical shape with the reaction chambers arranged concentrically with each other and wherein said means for supplying gas serving as an oxygen carrier are coupled to said gas permeable means at at least one end of the cylinder so formed through ring lines which are in communication with the surface of the gas permeable means.
Claim 17
Dependent Claim
42 words
A multi-stage reformed-gas generator according to claim 15 wherein the cylinder so formed includes a bottom plate to which said gas permeable means are attached, said plate having slots therein in communication with said gas permeable means and with said ring lines.
Claim 18
Dependent Claim
59 words
A multi-stage reformed-gas generator according to claim 1 and further including a heat exchanger surrounding the reaction chambers through which air used as an oxygen carrier is passed in the direction counter to that of the reformed gas before being distributed by said gas permeable means and through which fuel is passed in crosswise direction to the reformed gas.
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) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |