Patent AT311295B successfully refreshed from Google Patents.
Patent EP0438902A2 successfully refreshed from Google Patents.
EP0438902A2
Expired / Lapsed
EP
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Electrochemical reactors and multicomponent membranes useful for oxidation reactions
Assignee: Standard Oil Co
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Filing: 1990-12-20
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Granted: —
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Expires: 2010-12-20
Abstract
Abstract A solid multi-component membrane for use in an electrochemical reactor characterized by a mixed metal oxide material having a perovskite structure comprising (1) a lanthanide, Y, or a combination of a lanthanide and Y, (2) at least one alkaline earth metal, (3) Fe, and (4) Cr, Ti or a combination of Cr and Ti. Also claimed is an element for use in an electrochemical reactor or reactor cell having a first surface capable of reducing oxygen to oxygen ions, a second surface capable of reacting oxygen ions with an oxygen-consuming gas, an electron-conductive path between the first and second surfaces and an oxygen ion-conductive path between the first and second surfaces characterized in that the element comprises (A) a mixed metal oxide material having a perovskite structure and (B) a conductive coating, a catalyst, or a conductive coating comprising a catalyst. The invention permits the carrying out of a number of electrochemical reactions.
Inventors
- 👤 Thomas L. Cable
- 👤 John G. Frye, Jr.
- 👤 Wayne R. Kliewer
- 👤 Terry J. Mazanec
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 12:27
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/10; H01M8/12; H01M8/124; H01M8/1246; B; B01; B01D; B01D53/00; B01D53/32; B01D53/326; B01D67/00; B01D67/0039; B01D67/0041; B01D67/00413; B01D67/0044; B01D67/0046; B01D69/00; B01D69/14; B01D69/141; B01D69/1411; B01D71/00; B01D71/02; B01D71/0215; B01D71/022; B01D71/0223; B01D71/02231; B01D71/024; B01D71/0271; B01J; B01J12/00; B01J12/007; B01J19/00; B01J19/24; B01J19/2475; B01J8/00; B01J8/008; B01J8/009; C; C01; C01B; C01B13/00; C01B13/02; C01B13/0229; C01B13/0248; C01B13/0251; C01B13/0255; C01B13/0288; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/36; C01B3/38; C01B3/386; C01C; C01C3/00; C01C3/02; C01C3/0208; C01C3/0212; C01C3/0216; C01C3/022; C01C3/0225; C01C3/0229; C01C3/0233; C01G; C01G45/00; C01G45/12; C01G45/1221; C01G45/20; C01G45/22; C01G49/00; C01G49/0018; C01G49/0036; C01G49/0063; C01G51/00; C01G51/40; C01G51/66; C01G51/68; C01G51/80; C01G51/82; C25; C25B; C25B3/00; C25B3/01; C25B3/03; C25B3/07; C25B3/20; C25B3/23; C25B5/00; H01M8/1231; B01D2323/00; B01D2323/10; B01D2325/00; B01D2325/04; B01D2325/26; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00044; B01J2208/00106; B01J2208/00309; B01J2208/00327; B01J2208/00336; B01J2208/00345; B01J2208/00548; B01J2208/00628; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00054; B01J2219/00056; B01J2219/00058; B01J2219/00074; B01J2219/00117; B01J2219/00121; B01J2219/00123; B01J2219/00126; B01J2219/00164; B01J2219/00186; C01B2203/00; C01B2203/02; C01B2203/025; C01B2203/0261; C01B2203/10; C01B2203/1005; C01B2203/1035; C01B2203/12; C01B2203/1205; C01B2203/1211; C01B2203/1235; C01B2203/1241; C01B2203/1258; C01B2210/00; C01B2210/0001; C01B2210/0003; C01B2210/0009; C01B2210/001; C01B2210/0012; C01B2210/0043; C01B2210/0071; C01B2210/0075; C01P; C01P2002/00; C01P2002/30; C01P2002/34; C01P2002/50; C01P2002/52; C01P2002/54; C01P2004/00; C01P2004/01; C01P2004/03; C01P2004/80; C01P2004/82; C01P2004/84; C01P2006/00; C01P2006/12; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50; Y02P; Y02P20/00; Y02P20/50; Y02P20/52; Y02P70/00; Y02P70/50
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
54 words
A solid multi-component membrane for use in an electrochemical reactor characterized by a mixed metal oxide material having a perovskite structure comprising (1) a lanthanide, Y, or a combination of a lanthanide and Y, (2) at least one alkaline earth metal, (3) Fe, and (4) Cr, Ti or a combination of Cr and Ti.
Claim 2
Dependent Claim
48 words
The solid membrane of claim 1 wherein the mixed metal oxide material comprises (1) La, Y, or a combination of La and Y, (2) Ca, Sr, or a combination of Ca and Sr, (3) Fe, (4) Cr, and (5) Mn, Co, or a combination of Mn and Co.
Claim 3
Dependent Claim
19 words
The solid membrane of claim 1 wherein the mixed metal oxide material comprises La, Sr, Fe, Cr, and Co.
Claim 4
Dependent Claim
84 words
An element for use in an electrochemical reactor or reactor cell having a first surface capable of reducing oxygen to oxygen ions, a second surface capable of reacting oxygen ions with an oxygen-consuming gas, an electron-conductive path between the first and second surfaces and an oxygen ion-conductive path between the first and second surfaces characterized in that the element comprises (A) a mixed metal oxide material having a perovskite structure and (B) a conductive coating, a catalyst, or a conductive coating comprising a catalyst.
Claim 5
Dependent Claim
12 words
The element of claim 4 wherein the catalyst comprises a sulfur-reducing catalyst.
Claim 6
Dependent Claim
80 words
An element for use in an electrochemical reactor or reactor cell comprising a gas-tight solid electrolyte having a first surface coated with conductive metal, metal oxide or mixtures thereof capable of facilitating the reduction of oxygen to oxygen ions and a second surface coated with conductive metal, metal oxides or mixtures thereof, wherein the two conductive coatings are connected by an external circuit, both coatings are stable at operating temperatures and the first conductive coating comprises a sulfur reducing catalyst.
Claim 7
Dependent Claim
190 words
An element for use in an electrochemical reactor or reactor cell having a first surface capable of reducing oxygen to oxygen ions, a second surface capable of reacting oxygen ions with an oxygen-consuming gas, an electron-conductive path between the first and second surfaces and an oxygen ion-conductive path between the first and second surfaces characterized in that the element comprises (A) a solid multi-component membrane characterized by (1) a solid electrolyte, (2) an intimate, gas-impervious, multi-phase mixture of an electronically-conductive phase and an oxygen ion-conductive phase or (3) a mixed metal oxide material having a perovskite structure and (B) a conductive coating, a catalyst, or a conductive coating comprising a catalyst, wherein (B) comprises (1) a conductive coating comprising an alkali or alkaline earth metal or metal oxide in an amount in the range from about 1% to about 50% by weight of the conductive coating or (2) an oxidative coupling catalyst provided that when the element comprises the solid electrolyte (1), (B) comprises a conductive coating or a conductive coating comprising a catalyst on each of the conductive surfaces and the conductive surfaces are connected by an external circuit.
Claim 8
Dependent Claim
85 words
An electrochemical reactor cell for reacting an oxygen-consuming gas with an oxygen-containing gas in an environment containing either the oxygen-consuming gas or the oxygen-containing gas, characterized by a solid multi-component membrane or element having an entrance end, an exit end and a passage therebetween for the movement of one or more gases from the entrance end to the exit end, wherein the solid membrane is defined according to any one of claims 1-3 and the element is defined according to any one of claims 4-7.
Claim 9
Dependent Claim
142 words
An electrochemical reactor for reacting an oxygen-consuming gas with an oxygen-containing gas characterized by: a shell having an entrance end, an exit end and a passage therebetween for the movement of one or more gases from the entrance end to the exit end, and at least one electrochemical reactor cell positioned within the shell having an entrance end, an exit end and a passage therebetween for the movement of one or more gases from the entrance end to the exit end, so that the shell and the reactor cell together form a first zone for introducing, reacting and expelling a first gas or gas mixture and the passage through the reactor cell forms a second zone within the electrochemical reactor for introducing, reacting and expelling a second gas or gas mixture, wherein the electrochemical reactor cell is defined according to claim 8.
Claim 10
Dependent Claim
22 words
The electrochemical reactor of claim 9 wherein the electrochemical reactor comprises a catalyst on a support in the first or second zone.
Claim 11
Dependent Claim
147 words
An electrochemical reactor for reacting an oxygen-consuming gas with an oxygen-containing gas characterized by: a shell having an entrance end, an exit end and a passage therebetween for the movement of one or more gases from the entrance end to the exit end, and at least one electrochemical reactor cell positioned within the shell having an entrance end, an exit end and a passage therebetween for the movement of one or more gases from the entrance end to the exit end, so that the shell and the reactor cell together form a first zone for introducing, reacting and expelling a first gas or gas mixture and the passage through the reactor cell forms a second zone within the electrochemical reactor for introducing, reacting and expelling a second gas or gas mixture, wherein the electrochemical reactor comprises an oxidative coupling catalyst on a support in the first zone.
Claim 12
Dependent Claim
121 words
An electrochemical process for producing unsaturated hydrocarbon compounds from saturated hydrocarbon compounds characterized by: (A) providing a multi-component membrane having a first and second surface comprising (1) an intimate, gas-impervious, multi-phase mixture of an electronically-conductive phase and an oxygen ion-conductive phase or (2) a mixed metal oxide material having a perovskite structure; (B) passing an oxygen-containing gas in contact with the first surface while (C) passing a saturated hydrocarbon-containing gas optionally in contact with a dehydrogenation catalyst adjacent to the second surface and (D) recovering unsaturated hydrocarbons provided that when the saturated hydrocarbon-containing gas comprises methane, ethane, propane, or butane, or a mixture thereof, the saturated hydrocarbon-containing gas is passed in contact with the dehydrogenation catalyst adjacent to the second surface.
Claim 13
Dependent Claim
114 words
An electrochemical process for producing unsaturated hydrocarbon compounds from saturated hydrocarbon compounds characterized by: (A) providing an electrochemical cell comprising a gas-tight solid electrolyte having a first surface coated with conductive metal, metal oxide or mixtures thereof capable of facilitating the reduction of oxygen to oxygen ions and a second surface coated with conductive metal, metal oxide or mixtures thereof, wherein the two conductive coatings are connected by an external circuit and both coatings are stable at operating temperatures; (B) passing an oxygen-containing gas in contact with the first surface while (C) passing a saturated hydrocarbon-containing gas optionally in contact with a dehydrogenation catalyst adjacent to the second surface and (D) recovering unsaturated hydrocarbons.
Claim 14
Dependent Claim
124 words
An electrochemical process for substitution of aromatic compounds which comprises: (A) providing an electrochemical cell comprising (i) an element having a first surface capable of reducing oxygen to oxygen ions, a second surface capable of reacting oxygen ions with an oxygen-consuming gas, an electron-conductive path between the first and second surfaces and an oxygen ion-conductive path between the first and second surfaces, (ii) a first passageway adjacent to the first surface, and (iii) a second passageway adjacent to the second surface; and (B) passing an oxygen-containing gas through the first passageway while (C) passing an oxygen-consuming gas through the second passageway wherein the oxygen-consuming gas comprises a mixture of a hydrogen-containing aromatic compound and a second hydrogen-containing compound to produce the substituted aromatic compound.
Claim 15
Dependent Claim
81 words
An electrocatalytic process for gas cleanup which comprises (A) providing an electrochemical reactor cell comprising an element as defined according to claim 5 or 6 wherein the sulfur reducing catalyst is present on the first surface of the element, (B) passing a gas containing N₂O, NO, NO₂, SO₂, SO₃, or a mixture thereof, in contact with the first surface of the element, and (C) passing a gas capable of reacting with oxygen in contact with the second surface of the element.
Claim 16
Dependent Claim
133 words
An electrocatalytic process for gas cleanup which comprises (A) providing an electrochemical cell comprising a gas-tight solid electrolyte or a mixed metal oxide material having a perovskite structure, the electrochemical cell having a first surface coated with conductive metal, metal oxide or mixtures thereof capable of facilitating the reduction of oxygen to oxygen ions and a second surface coated with conductive metal, metal oxide or mixtures thereof, wherein the two conductive coatings are connected by an external circuit, both coatings are stable at operating temperatures, and the first conductive coating comprises a sulfur reducing catalyst, (B) passing a gas containing N₂O, NO, NO₂, SO₂, SO₃, or a mixture thereof, in contact with the first conductive coating, and (C) passing a gas capable of reacting with oxygen in contact with the second conductive coating.
Claim 17
Dependent Claim
19 words
The process of claim 15 or 16 wherein the sulfur reducing catalyst comprises a combination of Zn and Fe.
Claim 18
Dependent Claim
12 words
The process of claim 17 wherein the sulfur reducing catalyst is ZnFe₂O₃.
References Cited (Backward Citations)
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