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An oxygen separation and combustion apparatus such as a boiler or a nitrogen generator in which a plurality of fluid passages and oxygen transport membranes are located within a combustion chamber. The oxygen transport membranes separate oxygen from an oxygen containing gas, thereby to provide the o

An oxygen separation and combustion apparatus such as a boiler or a nitrogen generator in which a plurality of fluid passages and oxygen transport membranes are located within a combustion chamber. The oxygen transport membranes separate oxygen from an oxygen containing gas, thereby to provide the oxygen within the combustion chamber to support combustion of a fuel and thereby to generate heat. The fluid passages are positioned to allow a portion of the heat to be transferred from the combustion to the oxygen transport membranes to heat said oxygen transport membranes to an operational temperature and a further portion of the heat to be transferred from the combustion to the fluid, thereby to heat the fluid and also, to help stabilize the operational temperature of said oxygen transport membranes. Fuel is introduced into the combustion chamber by injection or as a mixture with circulated flue gas. The fuel is introduced into the combustion chamber and the combustion products are discharged so that said combustion products flow in a direction predominantly parallel to said membranes.

대표청구항 ▼

1. A oxygen separation and combustion apparatus comprising: a combustion chamber; a plurality of parallel oxygen transport membranes located within said combustion chamber to separate oxygen from an oxygen containing gas, thereby to provide the oxygen within the combustion chamber to support combus

1. A oxygen separation and combustion apparatus comprising: a combustion chamber; a plurality of parallel oxygen transport membranes located within said combustion chamber to separate oxygen from an oxygen containing gas, thereby to provide the oxygen within the combustion chamber to support combustion of a fuel and thereby generate heat; a plurality of fluid passages passing through said combustion chamber; said fluid passages positioned so that a portion of the heat is transferred from the combustion to said oxygen transport membranes to heat said oxygen transport membranes to an operational temperature and a further portion of the heat is transferred from the combustion to said fluid passages to provide heat to heat fluid and to promote stabilization of the operational temperature of said oxygen transport membranes; at least one inlet for introducing at least the fuel into said combustion chamber; and an exhaust from said combustion chamber to discharge combustion products arising from combustion of the fuel; the exhaust and said at least one inlet spaced apart from one another so that said combustion products flow in a direction predominantly parallel to said oxygen transport membranes.