US4174954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for converting a reaction mixture consisting of hydrocarbon-containing fuel and an oxygen-containing gas into a fuel gas
Assignee: Siemens AG
•
Filing: 1978-02-17
•
Granted: 1979-11-20
•
Expires: 1998-02-17
Abstract
Abstract In a gas generation method in which liquid fuel is catalytically reacted with air at elevated temperatures to form a fuel gas, several plates each having a multiplicity of passage openings are arranged in tandem in spaced fashion within the reaction chamber of the gas generator and are embedded in a bed of packing material with the thermal conductivity of the plates higher than that of the packing material in order to obtain more uniform heating of the reaction chamber and better mixing and distribution of the reacting media permitting the gas generator to be loaded more heavily.
Inventors
- 👤 Walter Kusebauch
- 👤 Hana Kostka
- 👤 Hans-Joachim Henkel
- 👤 Christian Koch
- 👤 Eugen S. de Bucs
- 👤 Theo Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:34
CPC Classifications
F; F02; F02M; F02M27/00; F02M27/02; B; B01; B01J; B01J8/00; B01J8/02; B01J8/0292; B01J8/04; B01J8/0446; B01J8/0449; B01J8/0453; C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/38; C01B3/386; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00513; B01J2208/00796; B01J2208/00884; B01J2208/00938; C01B2203/00; C01B2203/02; C01B2203/025; C01B2203/0261; C01B2203/08; C01B2203/0805; C01B2203/0838; C01B2203/0844; C01B2203/0872; C01B2203/0883; C01B2203/10; C01B2203/1005; C01B2203/1011; C01B2203/1041; C01B2203/1047; C01B2203/1052; C01B2203/1082; C01B2203/12; C01B2203/1205; C01B2203/1211; C01B2203/1235; C01B2203/1247; C01B2203/1276; C01B2203/1288; C01B2203/1294; C01B2203/16; C01B2203/1614; C01B2203/1619
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
135 words
A method of converting a reaction mixture consisting of atomized, vaporized or evaporated liquid, hydrocarbon fuel and a gas containing oxygen into a fuel gas at an elevated temperature in a gas generator including a reaction chamber comprising (a) imbedding a plurality of plates comprising porous ceramic sintered slabs containing a multiplicity of passage openings and having a surface which is catalytically active with respect to hydrocarbon fuels in a bed of packing material made up of a plurality of packing material grains such that said plates are diposed spaced one behind the other perpendicular to the flow direction of the reactants through the reaction chamber, said plates having a higher thermal conductivity than the packing material bed; and (b) passing the reaction mixture through said reaction chamber to convert it into a fuel gas.
Claim 2
Independent Claim
135 words
A method of converting a reaction mixture consisting of atomized, vaporized or evaporated liquid, hydrocarbon fuel and a gas containing oxygen into a fuel gas at an elevated temperature in a gas generator including a reaction chamber comprising (a) imbedding a plurality of plates comprising porous ceramic sintered slabs containing a multiplicity of passage openings and having a surface which is catalytically active with respect to hydrocarbon fuels in a bed of packing material made up of a plurality of packing material grains such that said plates are diposed spaced one behind the other perpendicular to the flow direction of the reactants through the reaction chamber, said plates having a higher thermal conductivity than the packing material bed; and (b) passing the reaction mixture through said reaction chamber to convert it into a fuel gas.
Claim 3
Dependent Claim
21 words
The method according to claim 1 wherein the largest dimension of the packing material grains is about 1 to 6 mm.
Claim 4
Dependent Claim
21 words
The improvement according to claim 2 wherein the smallest dimension of said packing material grains is at least about 0.8 mm.
Claim 5
Dependent Claim
18 words
The method according to claim 1 wherein the spacing of said plates is about 5 to 20 mm.
Claim 6
Dependent Claim
22 words
The method according to claim 1 wherein said packing material has a surface which is catalytically active with respect to hydrocarbon fuels.
Claim 7
Dependent Claim
18 words
The method according to claim 1 wherein said sintered slabs have a thickness of 5 to 20 mm.
Claim 8
Dependent Claim
23 words
The method according to claim 6 wherein said sintered slabs have about 10 to 100 passage openings per cm 2 of plate area.
Claim 9
Dependent Claim
19 words
The method according to claim 7 wherein the diameter of said passage openings is between 0.6 and 3 mm.
Claim 10
Dependent Claim
34 words
The method according to claim 8 wherein said sintered slabs have a thickness of about 10 mm and about 40 pasage openings of about 1 mm diameter for each cm 2 of plate area.
Claim 11
Dependent Claim
20 words
The method according to claim 6 wherein the porosity of said sintered slabs is about 20 to 60% by volume.
Claim 12
Dependent Claim
21 words
The method according to claim 6 wherein the open porosity of said sintered slabs is about 100 to 250% by volume.
Claim 13
Independent Claim
132 words
A method of converting a reaction mixture consisting of atomized, vaporized or evaporated liquid, hydrocarbon fuel and a gas containing oxygen into a fuel gas at an elevated temperature in a gas generator including a reaction chamber comprising (a) packing a plurality of plates made of a metallic material and containing a multiplicity of passage openings within the reaction chamber in a bed of plurality of packing material grains of a material which is catalytically active with respect to hydrocarbon fluids, such that said plates are disposed spaced one behind the other perpendicular to the flow direction of the reactants through the reaction chamber, said plates having higher thermal conductivity than said packing material bed; and (b) passing the reaction mixture through said reaction chamber to convert it into a fuel gas.
Claim 14
Independent Claim
132 words
A method of converting a reaction mixture consisting of atomized, vaporized or evaporated liquid, hydrocarbon fuel and a gas containing oxygen into a fuel gas at an elevated temperature in a gas generator including a reaction chamber comprising (a) packing a plurality of plates made of a metallic material and containing a multiplicity of passage openings within the reaction chamber in a bed of plurality of packing material grains of a material which is catalytically active with respect to hydrocarbon fluids, such that said plates are disposed spaced one behind the other perpendicular to the flow direction of the reactants through the reaction chamber, said plates having higher thermal conductivity than said packing material bed; and (b) passing the reaction mixture through said reaction chamber to convert it into a fuel gas.
Claim 15
Dependent Claim
33 words
The method according to claim 12 wherein the total of the cross section area per unit area of the metal plates of the passage openings increases toward the edges of the metal plates.
Claim 16
Independent Claim
135 words
A method of converting a reaction mixture consisting of atomized, vaporized or evaporated liquid, hydrocarbon fuel and a gas containing oxygen into a fuel gas at an elevated temperature in a gas generator including a reaction chamber comprising (a) packing a plurality of plates made of molybdenum silicide each of said plates having a multiplicity of passage openings in a packing material bed of a plurality of packing material grains of a material which is catalytically active with respect to hydrocarbon fuels, such that said plates are arranged spaced one behind the other perpendicular to the flow direction of the reactants through the reaction chamber, said molybdenum silicide having a higher thermal conductivity than said packing material bed; and (b) passing the reaction mixture through said reaction chamber to convert it into a fuel gas.
Claim 17
Independent Claim
135 words
A method of converting a reaction mixture consisting of atomized, vaporized or evaporated liquid, hydrocarbon fuel and a gas containing oxygen into a fuel gas at an elevated temperature in a gas generator including a reaction chamber comprising (a) packing a plurality of plates made of molybdenum silicide each of said plates having a multiplicity of passage openings in a packing material bed of a plurality of packing material grains of a material which is catalytically active with respect to hydrocarbon fuels, such that said plates are arranged spaced one behind the other perpendicular to the flow direction of the reactants through the reaction chamber, said molybdenum silicide having a higher thermal conductivity than said packing material bed; and (b) passing the reaction mixture through said reaction chamber to convert it into a fuel gas.
Claim 18
Dependent Claim
15 words
The method according to claim 14 wherein said molybdenum silicide plates carry catalytically active components
Claim 19
Dependent Claim
18 words
The method according to claim 14 and further including a gas-tight silicon dioxide coating on said molybdenum silicide.
Claim 20
Dependent Claim
29 words
The method according to claim 14 and further including disposing bodies of metallic material with wall surfaces extending parallel to the flow direction arranged in the packing material bed.
Claim 21
Dependent Claim
19 words
The method according to claim 17 wherein said bodies consist of molybdenum silicide with a gas-tight silicon dioxide coating.
References Cited (Backward Citations)
US1030508A
Cited
DE482157C
Cited
US2127561A
Cited
US3362787A
Cited
US3595626A
Cited
US3828736A
Cited
US3754870A
Cited
US4026248A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-19 | 1983-05-21 | 1983-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-19 | 1987-05-21 | 1987-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-19 | 1991-05-21 | 1991-11-20 | $7700.00 | Window Closed / Lapsed |