CARBON-FREE LOW-NOX LIQUID FUEL OXYGEN TRANSPORT RECTOR FOR INDUSTRIAL WATER TUBE BOILERS

摘要

An oxygen transport reactor for boiler furnaces and gas turbine combustors that utilizes a liquid fuel that is oxidized as a gaseous fuel in a membrane reactor. A liquid fuel is introduced by vaporizing the fuel inside a porous pipe surrounded by an annulus reaction zone which is surrounded by an annulus air zone. An oxygen transport membrane separates the annulus reaction zone containing the porous vaporized fuel and sweeping CO2 from the air feed side zone. Oxygen is transported from the outer annulus through the membrane to the annulus reaction zone containing the vaporized fuel and sweeping CO2. Fuel is first cracked to very small droplets in the intake fuel atomizer utilizing part of the intake CO2 then completely vaporized inside the porous pipe utilizing the heat coming from the surrounding reaction zone. The oxygen transport reactor is applicable for carbon free boiler furnaces and gas turbine combustors which utilize oxygen transport reactors for combined oxygen separation and combustion.

主权项

1. A liquid fuel oxygen transport reactor, comprising:
an outer oxygen transport membrane in the form of a cylinder having an upstream end and a downstream end, an inner porous membrane in the form of a cylinder having an upstream end and a closed downstream end, a liquid fuel injector, and a gas-assisted fuel atomizer; wherein the inner porous membrane is positioned inside the outer oxygen transport membrane to form an annulus between the outer oxygen transport membrane and the inner porous membrane, wherein the upstream end of the inner porous membrane is positioned at the downstream end of the outer oxygen transport membrane, wherein the liquid fuel injector and the gas-assisted fuel atomizer are located at the upstream end of the inner porous membrane, wherein the inner porous membrane is configured to pass a gaseous fuel and the outer oxygen transport membrane is configured to separate oxygen from a feed gas and pass the oxygen into the annulus, and wherein the annulus defines a combustion chamber in which the oxygen passed through the outer oxygen transport membrane and the fuel passed through the inner porous membrane react.