System integration of a steam reformer and gas turbine
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F02C-003/28
F02C-003/26
B01D-045/00
출원번호
US-0189459
(2005-07-26)
등록번호
US-7272934
(2007-09-25)
발명자
/ 주소
Chandran,Ravi
Mansour,Momtaz N.
출원인 / 주소
Manufacturing and Technology Conversion International, Inc.
대리인 / 주소
Dority & Manning, P.A.
인용정보
피인용 횟수 :
40인용 특허 :
44
초록▼
A novel process and apparatus for power generation from biomass and other carbonaceous feedstocks are provided. The process integrates a pulse combustor steam reformer with a gas turbine to generate electricity such that (i) efficiency is higher than those of conventional and current advanced power
A novel process and apparatus for power generation from biomass and other carbonaceous feedstocks are provided. The process integrates a pulse combustor steam reformer with a gas turbine to generate electricity such that (i) efficiency is higher than those of conventional and current advanced power systems, (ii) emissions are lower than those proposed in the new environmental regulations, and (iii) performance is comparable to that of combined cycle, even though a bottoming cycle is not included here. The pulse combustor steam reformer generates a hydrogen-rich, medium-Btu fuel gas that is fired in a gas turbine to generate electricity. The apparatus may be configured to produce only power or combined heat and power.
대표청구항▼
What is claimed: 1. A process for producing electricity from carbonaceous materials comprising the steps of: providing a fluidized bed containing a particulate material and a fluidizing medium, said fluidizing medium comprising steam; combusting a fuel source in a combustion device to form a combus
What is claimed: 1. A process for producing electricity from carbonaceous materials comprising the steps of: providing a fluidized bed containing a particulate material and a fluidizing medium, said fluidizing medium comprising steam; combusting a fuel source in a combustion device to form a combustion stream, said combustion stream indirectly heating said fluidized bed, said combustion device comprising a pulse combustion device; feeding a carbonaceous material to said fluidized bed, said fluidized bed being at a temperature sufficient for said carbonaceous material to endothermically react with said steam to form a product gas stream; feeding said product gas stream to a gas turbine, said gas turbine combusting said product gas stream in order to rotate a turbine and generate electricity, said gas turbine producing a flue gas stream; feeding at least a portion of said flue gas stream exiting said gas turbine to said combustion device for combustion with said fuel source; and wherein prior to said gas turbine, the product gas stream is fed to a heat exchanger for heating steam fed to said fluidized bed. 2. A process as defined in claim 1, wherein said steam to said carbonaceous material have a weight ratio of from about 0.75:1 to about 3:1. 3. A process as defined in claim 1, further comprising the step of using said combustion stream to preheat an air stream that is fed to said combustion device for combusting said fuel source. 4. A process as defined in claim 1, wherein after indirectly heating said fluidized bed, said combustion stream is fed to a steam generator for generating steam fed to said fluidized bed. 5. A process as defined in claim 1, further comprising the step of using the combustion stream to heat the flue gas stream prior to being fed to the combustion device. 6. A process for producing electricity from carbonaceous materials comprising the steps of: providing a fluidized bed containing a particulate material and a fluidizing medium, said fluidizing medium comprising steam; combusting a fuel source in a combustion device to form a combustion stream, said combustion stream indirectly heating said fluidized bed, said combustion device comprising a pulse combustion device; feeding a carbonaceous material to said fluidized bed, said fluidized bed being at a temperature sufficient for said carbonaceous material to endothermically react with said steam to form a product gas stream; feeding said product gas stream to a gas turbine, said gas turbine combusting said product gas stream in order to rotate a turbine and generate electricity, said gas turbine producing a flue gas stream; feeding at least a portion of said flue gas stream exiting said gas turbine to said combustion device for combustion with said fuel source; and wherein after indirectly heating the fluidized bed, the combustion stream is fed to a steam generator for generating steam fed to the gas turbine. 7. A process as defined in claim 6, further comprising the step of using said combustion stream to preheat an air stream that is fed to said combustion device for combusting said fuel source. 8. A process as defined in claim 6, wherein prior to said gas turbine, said product gas stream is fed to a heat exchanger for heating steam fed to said fluidized bed. 9. A process as defined in claim 6, further comprising the step of using the combustion stream to heat the flue gas stream prior to being fed to the combustion device. 10. A process for producing electricity from carbonaceous materials comprising the steps of: providing a fluidized bed containing a particulate material and a fluidizing medium, said fluidizing medium comprising steam; combusting a fuel source in a combustion device to form a combustion stream, said combustion stream indirectly heating said fluidized bed; feeding a carbonaceous material to said fluidized bed, said fluidized bed being at a temperature sufficient for said carbonaceous material to endothermically react with said steam to form a product gas stream; feeding said product gas stream to a gas turbine, said gas turbine combusting said product gas stream in order to rotate a turbine and generate electricity, said gas turbine producing a flue gas stream; feeding at least a portion of said flue gas stream exiting said gas turbine to said combustion device for combustion with said fuel source; wherein prior to said gas turbine, the product gas stream is fed to a heat exchanger for heating steam fed to said fluidized bed; and using the combustion stream to preheat an air stream that is fed to the combustion device for combusting the fuel source. 11. A process for producing electricity from carbonaceous materials comprising the steps of: providing a fluidized bed containing a particulate material and a fluidizing medium, said fluidizing medium comprising steam; combusting a fuel source in a combustion device to form a combustion stream, said combustion stream indirectly heating said fluidized bed; feeding a carbonaceous material to said fluidized bed, said fluidized bed being at a temperature sufficient for said carbonaceous material to endothermically react with said steam to form a product gas stream; feeding said product gas stream to a gas turbine, said gas turbine combusting said product gas stream in order to rotate a turbine and generate electricity, said gas turbine producing a flue gas stream; feeding at least a portion of said flue gas stream exiting said gas turbine to said combustion device for combustion with said fuel source; wherein prior to said gas turbine, the product gas stream is fed to a heat exchanger for heating steam fed to said fluidized bed; and using the combustion stream to heat the flue gas stream prior to being fed to the combustion device. 12. A process for producing electricity from carbonaceous materials comprising the steps of: providing a fluidized bed containing a particulate material and a fluidizing medium, said fluidizing medium comprising steam; combusting a fuel source in a combustion device to form a combustion stream, said combustion stream indirectly heating said fluidized bed; feeding a carbonaceous material to said fluidized bed, said fluidized bed being at a temperature sufficient for said carbonaceous material to endothermically react with said steam to form a product gas stream; feeding said product gas stream to a gas turbine, said gas turbine combusting said product gas stream in order to rotate a turbine and generate electricity, said gas turbine producing a flue gas stream; feeding at least a portion of said flue gas stream exiting said gas turbine to said combustion device for combustion with said fuel source; wherein after exiting the fluidized bed, the combustion stream is fed to a steam generator for generating steam fed to the gas turbine; and using said combustion stream to preheat an air stream that is fed to said combustion device for combusting said fuel source. 13. A process for producing electricity from carbonaceous materials comprising the steps of: providing a fluidized bed containing a particulate material and a fluidizing medium, said fluidizing medium comprising steam; combusting a fuel source in a combustion device to form a combustion stream, said combustion stream indirectly heating said fluidized bed; feeding a carbonaceous material to said fluidized bed, said fluidized bed being at a temperature sufficient for said carbonaceous material to endothermically react with said steam to form a product gas stream; feeding said product gas stream to a gas turbine, said gas turbine combusting said product gas stream in order to rotate a turbine and generate electricity, said gas turbine producing a flue gas stream; feeding at least a portion of said flue gas stream exiting said gas turbine to said combustion device for combustion with said fuel source; wherein after exiting the fluidized bed, the combustion stream is fed to a steam generator for generating steam fed to the gas turbine; and using the combustion stream to heat the flue gas stream prior to being fed to the combustion device.
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