초록 ▼

A compressed, oxygen-containing gas stream is combusted and then contacted with a solid electrolyte membrane to produce an oxygen-depleted, compressed gas stream and product oxygen. Preferably, the oxygen-depleted gas stream is further combusted, used to produce steam, and/or used to preheat the oxy

A compressed, oxygen-containing gas stream is combusted and then contacted with a solid electrolyte membrane to produce an oxygen-depleted, compressed gas stream and product oxygen. Preferably, the oxygen-depleted gas stream is further combusted, used to produce steam, and/or used to preheat the oxygen-containing gas stream prior to expansion in a gas turbine.

대표청구항 ▼

[ What is claimed is:] [1.] A method for producing oxygen and generating power by retrofitting a power generation system, said method comprising the steps of:providing the power generation system including a first compressor, a first combustor and a gas turbine, said compressor compressing a first o

[ What is claimed is:] [1.] A method for producing oxygen and generating power by retrofitting a power generation system, said method comprising the steps of:providing the power generation system including a first compressor, a first combustor and a gas turbine, said compressor compressing a first oxygen-containing gas stream for delivery to said first combustor, said first combustor combusting the first stream for expansion in said gas turbine;providing a second combustor in fluid communication with at least a first separator having a solid electrolyte membrane;directing a minor portion of the first stream to said second combustor utilizing a control valve disposed between said first compressor and said first combustor;combusting at least the minor portion of the first stream in the second combustor to a temperature below 1100.degree. C. to produce a combusted, heated, compressed gas stream;contacting the combusted, heated, compressed gas stream with the solid electrolyte membrane at a temperature below about 1000.degree. C. to produce an oxygen-depleted, compressed gas stream and product oxygen therefrom;combining the oxygen-depleted, compressed gas stream with the first stream at least one of before, during and after combustion of the first stream by said first combustor;controlling the pressure of the remainder of the first stream after the minor portion is removed, utilizing a pressure matching device in fluid communication between said control valve and said first combustor, said pressure matching device being disposed upstream of the combining of the oxygen-depleted compressed gas stream with the first stream to match the pressure of the controlled first stream with the pressure of the oxygen-depleted stream; and expanding the combined gas stream in the gas turbine at a temperature within the range of from about 900.degree. to about 2000.degree. C., thereby generating power, rein at least a portion of the compressed oxygen-containing gas stream bypasses the second combustor and is mixed with the combusted, compressed oxygen-containing gas stream prior to contact with the solid electrolyte membrane.