US 8,262,755 B2Granted

Staged membrane oxidation reactor system

AssigneeAir Products and Chemicals, Inc.

InventorsJohn Michael Repasky, Michael Francis Carolan, VanEric Edward Stein, Christopher Ming-Poh Chen

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Abstract

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.

Claims33

Dependent claims

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.

7 more elements

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.

10 more elements

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.

10 more elements

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.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/758,231Filed 5 Jun 2007
Published: US 2008/0302013 A111 Dec 2008
Granted: 11 Sep 2012
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

B01J 12/007
Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor: in the presence of…
B01J 19/2475
Stationary reactors without moving elements inside: membrane reactors
C01B 3/38
By reaction of hydrocarbons with gasifying agents: using catalysts
C01B 13/0251
Physical processing only: by making use of membranes