Thermal chemical recuperation method and system for use with gas turbine systems
First Claim
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1. A power generating system comprising:
- a) combustor means for receiving a reformed fuel stream and a first portion of a compressed air stream and producing a combustor exhaust stream;
b) gas turbine means for receiving at an input a combination of the combustor exhaust stream and a second portion of the compressed air stream, which has bypassed the combustor, and producing shaft power and a turbine exhaust stream having thermal energy therefrom, the turbine exhaust stream being combined with a third portion of the compressed air stream upstream of a reforming means;
c) steam generating means for receiving said combined turbine exhaust and compressed air stream and a water stream and producing a steam flow and a system exhaust stream therefrom; and
d) said reforming means receiving a fuel stream, said steam flow, and a portion of said combined turbine exhaust and compressed air stream thermal energy, and producing said reformed fuel stream therefrom.
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Abstract
A system and method for efficiently generating power using a gas turbine, a steam generating system (20, 22, 78) and a reformer. The gas turbine receives a reformed fuel stream (74) and an air stream and produces shaft power and exhaust. Some of the thermal energy from the turbine exhaust is received by the reformer (18). The turbine exhaust is then directed to the steam generator system that recovers thermal energy from it and also produces a steam flow from a water stream. The steam flow and a fuel stream are directed to the reformer that reforms the fuel stream and produces the reformed fuel stream used in the gas turbine.
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Citations
15 Claims
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1. A power generating system comprising:
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a) combustor means for receiving a reformed fuel stream and a first portion of a compressed air stream and producing a combustor exhaust stream; b) gas turbine means for receiving at an input a combination of the combustor exhaust stream and a second portion of the compressed air stream, which has bypassed the combustor, and producing shaft power and a turbine exhaust stream having thermal energy therefrom, the turbine exhaust stream being combined with a third portion of the compressed air stream upstream of a reforming means; c) steam generating means for receiving said combined turbine exhaust and compressed air stream and a water stream and producing a steam flow and a system exhaust stream therefrom; and d) said reforming means receiving a fuel stream, said steam flow, and a portion of said combined turbine exhaust and compressed air stream thermal energy, and producing said reformed fuel stream therefrom. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for generating power comprising the steps of:
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a) compressing an air stream to produce a compressed air stream; b) burning a reformed fuel stream in a first portion of said compressed air stream to produce a combustor exhaust stream; c) expanding in combination said combustor exhaust stream and a second portion of said compressed air streamer which has by-passed the combustor, throughout a turbine means for producing shaft power and a turbine exhaust stream having thermal energy, the turbine exhaust stream being combined with a third portion of said compressed air stream upstream of a reformer; d) reforming a fuel stream with a steam flow and a first portion of said combined turbine exhaust and compressed air stream thermal energy to produce said reformed fuel stream; and e) generating said steam flow by heating a water stream with a second portion of said combined turbine exhaust and compressed air stream thermal energy. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
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Specification