System and method for generation of high pressure air in an integrated gasification combined cycle system
First Claim
1. An integrated gasification combined cycle system, comprising:
- an ion transport membrane air separation unit for producing oxygen-enriched gas and oxygen-depleted air;
a gasification system for generating syngas from a carbonaceous fuel reacting with the oxygen-enriched gas;
a gas combustor for reacting the syngas; and
a subsystem, configured to provide a first stream of air to the combustor at a first pressure and to provide a second stream of air to the air separation unit at a second pressure greater than the first pressure, comprising a compressor having multi-pressure outlets.
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Accused Products
Abstract
An integrated gasification combined cycle system. In one embodiment (FIG. 2) a system (200) includes an ion transport membrane air separation unit (210) for producing oxygen-enriched gas (209) and oxygen-depleted air (227), a gasification system (5) for generating syngas with the oxygen-enriched gas (209), a gas combustor (234) for reacting the syngas (224), and a subsystem configured to provide a first stream of air to the combustor (234) at a first pressure and to provide a second stream of air to the air separation unit (210) at a second pressure greater than the first pressure. The subsystem includes a compressor (230) having multi-pressure outlets (203, 204).
94 Citations
19 Claims
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1. An integrated gasification combined cycle system, comprising:
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an ion transport membrane air separation unit for producing oxygen-enriched gas and oxygen-depleted air; a gasification system for generating syngas from a carbonaceous fuel reacting with the oxygen-enriched gas; a gas combustor for reacting the syngas; and a subsystem, configured to provide a first stream of air to the combustor at a first pressure and to provide a second stream of air to the air separation unit at a second pressure greater than the first pressure, comprising a compressor having multi-pressure outlets. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An integrated gasification combined cycle system, comprising:
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an ion transport membrane air separation unit for producing oxygen-enriched gas and oxygen-depleted air; a gasification system for generating syngas by reacting a carbonaceous fuel with the oxygen-enriched gas; a combustor for reacting the syngas; and a subsystem, configured to provide a first stream of air to the air separation unit at a first pressure and to provide a second stream of air to the combustor at a second pressure lower than the first pressure, comprising an air turbine. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of operating an integrated gasification combined cycle power generation system, comprising the steps of:
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providing a compressor having at least two multi-pressure outlets; delivering a first stream of air at a first pressure from a first of the outlets; delivering a second stream of air at a second pressure greater than the first pressure from a second of the outlets; producing a stream of oxygen-enriched gas and a stream of oxygen-depleted air from the second stream of air; generating syngas by reacting a carbonaceous fuel with the oxygen-enriched gas; and combusting a mixture comprising the syngas and air from the first stream of air in a combustor to generate power. - View Dependent Claims (14, 15)
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16. A method of operating an integrated gasification combined cycle power generation system, comprising the steps of:
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producing a first stream of air at a first pressure; producing a stream of oxygen-enriched gas and a stream of oxygen-depleted air from a first portion of the first stream of air; producing a second stream of air at a second pressure lower than the first pressure from a portion of the first stream of air; generating syngas by reacting a carbonaceous fuel with the oxygen-enriched gas; and combusting a mixture comprising the syngas and air of the second stream of air in a combustor to generate power. - View Dependent Claims (17, 18, 19)
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Specification