Method and System for Injecting Low Pressure Oxygen from an Ion Transport Membrane into an Ambient or Super Ambient Pressure Oxygen-Consuming Process
AssigneesL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude, American Air Liquide, Inc.
InventorsWei HUANG, Justin Jian Wang, Remi Pierre Tsiava
Life of this patent
Estimating the term…
Abstract
A stream of sub ambient oxygen from an ion transport membrane is injected into an ambient pressure or super ambient pressure oxygen-consuming process through an annular space in between concentrically disposed inner and outer tubes where a high velocity gas is injected into the process from the inner tube.
Claims14
A method for injecting low pressure oxygen from an ion transport membrane into an ambient or super ambient pressure oxygen-consuming process, comprising the steps of:
- feeding a super ambient pressure, oxygen-containing feed gas to a first ion transport membrane to produce a sub-ambient pressure first permeate stream essentially consisting of oxygen and a first non-permeate stream essentially consisting of oxygen-deficient feed gas, the ion transport membrane comprising a material that is a hybrid electron/O2− anion hybrid conductor;
- injecting a high velocity gas into the oxygen-consuming process from an interior of an inner tube, the high velocity gas having a velocity of at least 80 m/s;
- and
- injecting the sub-ambient pressure first permeate stream into the oxygen consuming process form an annular space in between the inner tube and an outer tube concentrically disposed around the inner tube, the first permeate stream being sucked from the annular space by the relative vacuum created by expansion of the high velocity gas from the inner tube, the sub ambient pressure first permeate stream having a pressure of at least 8000 Pascal.
A system for consuming oxygen that is received at low pressure from an ion transport membrane, comprising:
- a reactor adapted for consuming oxygen;
- a first ion transport membrane comprising a material that is a hybrid electron/O2− anion hybrid conductor, the first ion transport membrane having an inlet, a first permeate stream outlet and a first non-permeate stream outlet;
- a source of a gas;
- an oxygen injection device comprising an outer tube concentrically disposed around an inner tube, inner tube having an inlet and outlet, an annular space in between the inner and outlet tubes having an inlet and outlet, wherein the inlet of the inner tube is in fluid communication with the gas source, the inlet of the annular space is in fluid communication with the first permeate stream outlet, and the outlets of the inner tube and the annular space are in fluid communication with an interior of the reactor.
Dependencies are inferred from the claim text.