Ion transport membrane oxidation system comprising (a) two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an
Ion transport membrane oxidation system comprising (a) two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region; (b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages and adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of a second stage of the pair; and (c) one or more reactant interstage feed gas lines, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage receiving interstage reactant gas.
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1. An ion transport membrane oxidation system comprising (a) a first group and a second group of two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet
1. An ion transport membrane oxidation system comprising (a) a first group and a second group of two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region wherein the one or more ion transport membranes are mixed conductor membranes and wherein the second group is downstream of the first group;(b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages, wherein the interstage reactant gas flow path is adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of a second stage of the pair such that interstage reactant gas can flow from the first stage to the second stage; and(c) one or more reactant interstage feed gas lines of the first group of two or more membrane oxidation stages for providing a reactant interstage feed gas, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage of the first group of two or more membrane oxidation stages receiving interstage reactant gas;(d) one or more reactant interstage feed gas lines of the second group of two or more membrane oxidation stages for providing a reactant interstage feed gas, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage of the second group of two or more membrane oxidation stages receiving interstage reactant gas;(e) a first control valve for controlling the flow rate of the reactant interstage feed gas to the one or more reactant interstage feed gas lines of the first group of two or more membrane oxidation stages;(f) a second control valve for controlling the flow rate of the reactant interstage feed gas to the one or more reactant interstage feed gas lines of the second group of two or more membrane oxidation stages;(g) a first temperature indicator/controller configured to send control signals to the first control valve to regulate a temperature in the first group of two or more membrane oxidation stages; and(h) a second temperature indicator/controller configured to send control signals to the second control valve to regulate a temperature in the second group of two or more membrane oxidation stages. 2. The system of claim 1 comprising one or more catalysts disposed within any reactant zone and/or in the interstage reactant gas flow path between any pair of membrane oxidation stages. 3. The system of claim 2 wherein the one or more catalysts are selected from the group consisting of oxidation catalyst, steam reforming catalyst, carbon dioxide reforming catalyst, and water gas shift catalyst. 4. The system of claim 1 comprising between 2 and 100 stages, inclusive. 5. The system of claim 1 comprising greater than 100 stages. 6. The system of claim 1 comprising a pressure vessel in which the first group of two or more membrane oxidation stages are disposed. 7. The system of claim 6 wherein the first group and the second group of two or more membrane oxidation stages comprise the first stage and a last stage, and wherein the pressure vessel has a reactant feed inlet in flow communication with the reactant gas inlet region of the first stage, a product gas outlet in flow communication with the reactant gas outlet region of the last stage, an oxidant gas inlet in flow communication with the oxidant gas inlet regions of the first group and the second group of two or more membrane oxidation stages, an oxidant gas outlet in flow communication with the oxidant gas outlet regions of the first group and the second group of two or more membrane oxidation stages, and an interstage reactant gas inlet in flow communication with the interstage reactant gas flow path disposed between any two adjacent membrane oxidation stages. 8. An ion transport membrane oxidation system comprising (a) a first group and a second group of two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region wherein the one or more ion transport membranes are mixed conductor membranes and wherein the second group is downstream of the first group;(b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages, wherein the interstage reactant gas flow path is adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of the second stage of the pair such that interstage reactant gas can flow from the first stage to the second stage;(c) one or more reactant interstage feed gas lines of the first group of two or more membrane oxidation stages for providing a reactant interstage feed gas, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage of the first group of two or more membrane oxidation stages receiving interstage reactant gas;(d) one or more reactant interstage feed gas lines of the second group of two or more membrane oxidation stages for providing a reactant interstage feed gas, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage of the second group of two or more membrane oxidation stages receiving interstage reactant gas;(e) one or more lines for providing reactant feed gas in flow communication with the reactant zone of a first stage of the first group of two or more membrane oxidation stages;(f) a first reactant gas supply manifold in flow communication with one of the lines for providing reactant feed gas to the first stage of the first group of two or more oxidation stages and in flow communication with any of the reactant interstage feed gas lines of the first group of two or more membrane oxidation stages;(g) a second reactant gas supply manifold in flow communication with one of the lines for providing reactant feed gas to any of the reactant interstage feed gas lines of the second group of two or more membrane oxidation stages;(h) a product withdrawal line adapted to withdraw an oxidation product from the reactant zone of the last stage of the second group of two or more membrane oxidation stages;(i) a first control valve for controlling the flow rate of the reactant interstage feed gas to the first reactant gas supply manifold;(j) a second control valve for controlling the flow rate of the reactant interstage feed gas to the second reactant gas supply manifold;(k) a first temperature indicator/controller configured to send control signals to the first control valve to regulate a temperature in the first group of two or more membrane oxidation stages; and(l) a second temperature indicator/controller configured to send control signals to the second control valve to regulate a temperature in the second group of two or more membrane oxidation stages. 9. The system of claim 8 comprising one or more catalysts disposed within any reactant zone and/or in the interstage reactant gas flow path between any pair of membrane oxidation stages. 10. The system of claim 9 wherein the one or more catalysts are selected from the group consisting of oxidation catalyst, steam reforming catalyst, carbon dioxide reforming catalyst, and water gas shift catalyst. 11. An ion transport membrane oxidation system comprising (a) a first group and a second group of two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region wherein the one or more ion transport membranes are mixed conductor membranes and wherein the second group is downstream of the first group;(b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages, wherein the interstage reactant gas flow path is adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of a second stage of the pair such that interstage reactant gas can flow from the first stage to the second stage;(c) one or more reactant interstage feed gas lines of the first group of two or more membrane oxidation stages for providing a reactant interstage feed gas, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage of the first group of two or more membrane oxidation stages receiving interstage reactant gas;(d) one or more reactant interstage feed pas lines of the second group of two or more membrane oxidation stages for providing a reactant interstage feed pas, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage of the second group of two or more membrane oxidation stages receiving interstage reactant gas;(e) one or more lines for providing reactant feed gas in flow communication with the reactant zone of a first stage of the first group of two or more membrane oxidation stages;(f) a first reactant interstage feed gas supply manifold in flow communication with any of the reactant interstage feed gas lines of the first group of two or more membrane oxidation stages;(g) a second reactant interstage feed pas supply manifold in flow communication with any of the reactant interstage feed pas lines of the second group of two or more membrane oxidation stages;(h) a product withdrawal line adapted to withdraw an oxidation product from the reactant zone of the last stage of the second group of two or more membrane oxidation stages;(i) a first control valve for controlling the flow rate of the reactant interstage feed pas to the first reactant interstage feed pas supply manifold;(j) a second control valve for controlling the flow rate of the reactant interstage feed gas to the second reactant interstage feed gas supply manifold;(k) a first temperature indicator/controller configured to send control signals to the first control valve to regulate a temperature in the first group of two or more membrane oxidation stages; and(l) a second temperature indicator/controller configured to send control signals to the second control valve to regulate a temperature in the second group of two or more membrane oxidation stages. 12. The system of claim 11 comprising one or more catalysts disposed within any reactant zone and/or in the interstage reactant gas flow path between any pair of membrane oxidation stages. 13. The system of claim 12 wherein the one or more catalysts are selected from the group consisting of oxidation catalyst, steam reforming catalyst, carbon dioxide reforming catalyst, and water gas shift catalyst. 14. An ion transport membrane oxidation system comprising (a) a first group and a second group of two or more membrane oxidation stages, each stage comprising a reactant zone, an oxidant zone, one or more ion transport membranes separating the reactant zone from the oxidant zone, a reactant gas inlet region, a reactant gas outlet region, an oxidant gas inlet region, and an oxidant gas outlet region wherein the one or more ion transport membranes are mixed conductor membranes and wherein the second group is downstream of the first group;(b) an interstage reactant gas flow path disposed between each pair of membrane oxidation stages, wherein the interstage reactant gas flow path is adapted to place the reactant gas outlet region of a first stage of the pair in flow communication with the reactant gas inlet region of a second stage of the pair such that interstage reactant gas can flow from the first stage to the second stage;(c) one or more reactant interstage feed gas lines of the first group of two or more membrane oxidation stages for providing a reactant interstage feed gas, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage of the first group of two or more membrane oxidation stages receiving interstage reactant gas;(d) one or more reactant interstage feed gas lines of the second group of two or more membrane oxidation stages for providing a reactant interstage feed gas, each line being in flow communication with any interstage reactant gas flow path or with the reactant zone of any membrane oxidation stage of the second group of two or more membrane oxidation stages receiving interstage reactant gas;(e) one or more lines for providing reactant feed gas in flow communication with the reactant zone of a first stage of the first group of two or more membrane oxidation stages;(f) a first reactant gas supply manifold in flow communication with any of the reactant interstage feed gas lines of the first group of two or more membrane oxidation stages and the one or more lines for providing reactant feed gas;(g) a first control valve for controlling the flow rate of the reactant interstage feed gas to the one or more reactant interstage feed gas lines of the first group of two or more membrane oxidation stages;(h) a second control valve for controlling the flow rate of the reactant interstage feed gas to the one or more reactant interstage feed gas lines of the second group of two or more membrane oxidation stages;(i) a first temperature indicator/controller configured to send control signals to the first control valve to regulate a temperature in the first group of two or more membrane oxidation stages; and(j) a second temperature indicator/controller configured to send control signals to the second control valve to regulate a temperature in the second group of two or more membrane oxidation stages;(k) a second reactant gas supply manifold in flow communication with any of (1) any of the reactant interstage feed gas lines and (2) any of the one or more lines for providing reactant feed gas wherein the second reactant gas supply manifold provides additional reactant gas from a source different than a source of the reactant gas provided via the first reactant gas supply manifold; and(l) a product withdrawal line adapted to withdraw an oxidation product from the reactant zone of the last stage of the second group of two or more membrane oxidation stages. 15. A method for generating an oxidation product gas comprising (a) providing the ion transport membrane oxidation system of claim 1;(b) introducing one or more reactant feed gases into the reactant gas inlet region of the first stage of the first croup of two or more membrane oxidation stages;(c) introducing an oxidant gas into any of the oxidant gas inlet regions of the first group and the second group of two or more membrane oxidation stages;(d) introducing a reactant interstage feed gas into any of the interstage reactant gas flow paths disposed between adjacent membrane oxidation stages or into any reactant zone of any stage receiving interstage reactant gas; and(e) withdrawing an oxidation gas product from the reactant gas outlet region of a last stage of the second group of two or more membrane oxidation stages. 16. The method of claim 15 wherein the one or more reactant feed gases comprise a first reactant feed gas comprising methane and a second reactant feed gas comprising steam. 17. The method of claim 16 wherein the reactant interstage feed gas and the first reactant feed gas are provided as portions of the same reactant gas stream. 18. The method of claim 16 wherein the reactant interstage feed gas and the first reactant feed gas are obtained from different sources. 19. The method of claim 18 wherein the reactant interstage feed gas comprises carbon dioxide. 20. A method for generating an oxidation product gas comprising (a) providing the ion transport membrane oxidation system of claim 8;(b) providing the reactant feed gas via the first reactant gas supply manifold, introducing the reactant feed gas from the first reactant gas supply manifold into the reactant zone of the first stage of the first group of two or more membrane oxidation stages, and introducing the reactant feed gas from the first reactant gas supply manifold as reactant interstage feed gas into any of the one or more reactant interstage feed gas lines of the first group of two or more membrane oxidation stages;(c) providing the reactant feed as via the second reactant gas supply manifold, introducing the reactant feed gas from the second reactant gas supply manifold to any of the reactant interstage feed gas lines of the second group of two or more membrane oxidation stages;(d) introducing an oxidant gas into any of the oxidant gas inlet regions of the first group and the second group of two or more membrane oxidation stages; and(e) withdrawing an oxidation gas product from the reactant gas outlet region of the last stage of the second group of two or more membrane oxidation stages. 21. The method of claim 20 wherein the reactant feed gas provided via the first reactant gas supply manifold is pre-reformed natural gas and the oxidation gas product is synthesis gas comprising hydrogen and carbon monoxide. 22. The method of claim 21 comprising introducing steam into one of the lines for providing reactant feed gas in flow communication with the reactant zone of the first stage of the first group of two or more membrane oxidation stages. 23. The method of claim 20 wherein the reactant feed gas provided via the first reactant gas supply manifold comprises pre-reformed natural gas and a reactant gas comprising carbon dioxide. 24. The method of claim 20 wherein the reactant feed gas provided via the first reactant gas supply manifold comprises a pre-reformed mixture of natural gas and a reactant gas comprising at least one of methane and carbon dioxide. 25. A method for generating an oxidation product gas comprising (a) providing the ion transport membrane oxidation system of claim 11;(b) introducing the reactant feed gas into the reactant zone of the first stage of the first group of two or more membrane oxidation stages;(c) providing the reactant interstage feed gas via the first reactant interstage feed gas supply manifold into any of the one or more reactant interstage feed gas lines of the first group of two or more membrane oxidation stages;(d) providing the reactant interstage feed gas via the second reactant interstage feed gas supply manifold into any of the one or more reactant interstage feed gas lines of the second group of two or more membrane oxidation stages;(e) introducing an oxidant gas into any of the oxidant gas inlet regions of the first group and the second group of two or more membrane oxidation stages; and(e) withdrawing an oxidation gas product from the reactant gas outlet region of the last stage of the second group of two or more membrane oxidation stages. 26. The method of claim 25 wherein the reactant feed gas and the reactant interstage feed gas comprises pre-reformed natural gas and the oxidation gas product is synthesis gas comprising hydrogen and carbon monoxide. 27. The method of claim 26 comprising introducing steam into the one or more lines for providing reactant feed gas in flow communication with the reactant zone of the first stage of the first group of two or more membrane oxidation stages. 28. The method of claim 25 wherein the reactant interstage feed gas comprises methane and/or carbon dioxide. 29. The method of claim 28 comprising maintaining the partial pressure of carbon dioxide in the interstage reactant gas flowing into any membrane oxidation stage to be less than a critical threshold carbon dioxide partial pressure, pCO2*, wherein pCO2* is defined as a carbon dioxide partial pressure above which the material in the ion transport membranes reacts with carbon dioxide and decomposes. 30. The method of claim 28 wherein the oxidation gas product is synthesis gas comprising hydrogen and carbon monoxide. 31. The method of claim 30 wherein the reactant interstage feed gas is provided by pre-reforming a reactant gas comprising carbon dioxide, methane, and one or more hydrocarbons heavier than methane. 32. The method of claim 31 wherein the synthesis gas comprising hydrogen and carbon monoxide is utilized as feed gas to a hydrocarbon synthesis process or an oxygenated hydrocarbon synthesis process that generates a process offgas comprising carbon dioxide, and wherein some or all of the process offgas provides at least a portion of the reactant gas that is pre-reformed to provide the reactant interstage feed gas. 33. The method of claim 30 wherein the synthesis gas comprising hydrogen and carbon monoxide is utilized as feed gas to a hydrocarbon synthesis process or an oxygenated hydrocarbon synthesis process that generates a process offgas comprising carbon dioxide, and wherein some or all of the process offgas provides at least a portion of the reactant interstage feed gas.
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