WO1998045578B1 - Thermal chemical recuperation method and system for use with gas turbine systems - Google Patents
Thermal chemical recuperation method and system for use with gas turbine systemsInfo
- Publication number
- WO1998045578B1 WO1998045578B1 PCT/US1998/005520 US9805520W WO9845578B1 WO 1998045578 B1 WO1998045578 B1 WO 1998045578B1 US 9805520 W US9805520 W US 9805520W WO 9845578 B1 WO9845578 B1 WO 9845578B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stream
- exhaust stream
- turbine
- producing
- turbine exhaust
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 12
- 239000000446 fuel Substances 0.000 claims abstract 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 12
- 238000002407 reforming Methods 0.000 claims 10
- 239000003345 natural gas Substances 0.000 claims 5
- 239000004215 Carbon black (E152) Substances 0.000 claims 2
- 239000007789 gas Substances 0.000 claims 2
- 229930195733 hydrocarbon Natural products 0.000 claims 2
- 150000002430 hydrocarbons Chemical class 0.000 claims 2
- 239000003949 liquefied natural gas Substances 0.000 claims 2
- 239000000203 mixture Substances 0.000 claims 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910002091 carbon monoxide Inorganic materials 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
Abstract
A system and method for efficiently generating power using a gas turbing (14), a steam generating system (32) and a reformer (18). The gas turbine receives a reformed fuel stream (74) and an air stream (60) and produces shaft power and exhaust. Some of the thermal energy from the turbine exhaust (60) is received by the reformer (18). The turbine exhaust is then directed to the steam generator system (32) that recovers thermal energy from it and also produces a steam flow (70) from a water stream (66). The stream flow (70) and a fuel stream (72) are directed to the reformer (18) that reforms the fuel stream and produces the reformed fuel stream (74) used in the gas turbine.
Claims
1. A power generating system (10) comprising: a) combustor means (30) for receiving a reformed fuel stream (74) and a first portion of a compressed air stream (50) and producing a combustor exhaust stream (76); b) gas turbine means (14) for receiving at an input a combination of the combustor exhaust stream (76) and a second portion of the compressed air stream (48), which has bypassed the combustor (16), and producing shaft power and a turbine exhaust stream (58) having thermal energy therefrom; c) steam generating means (20) for receiving said turbine exhaust stream
(60) and a water stream (66) and producing a steam flow (70) and a system exhaust stream (62) therefrom; and d) reforming means (18) for receiving a fuel stream (72), said steam flow (70), and a portion of said turbine exhaust stream (60) thermal energy, and producing said reformed fuel stream (74) therefrom.
2. The system of claim 1 , wherein said fuel stream (72) is natural gas, liquefied natural gas, synthetically-derived hydrocarbon fuel, or a mixture thereof.
3. The system of claim 1, where said steam generating means (32) 15 comprises: a) evaporator means (20) for receiving said turbine exhaust stream
(60) and a heated water stream (68) and producing said steam flow (70) and a cooled turbine exhaust stream (62) therefrom; b) economizer means (22) for receiving said cooled turbine 20 exhaust stream (62) and said water (82) and producing said heated water stream (68) and said system exhaust stream (64) therefrom; and
- 1 1 - c) water control means (82) for adjusting a flowrate of said water stream (66).
4. The system of claim 1, wherein said power generating system (10) 25 is an electricity-steam cogeneration plant.
5. The system of claim 1, wherein said gas turbine means (14) comprises: a) compressor means (12) for receiving an inlet air stream (40) and producing the compressed air stream (46) therefrom; and b) directing means for splitting off a third portion of said compressed air stream (52) and for combining said compressed air stream third portion with said turbine exhaust stream (58).
6. The system of claim 1, wherein said reforming means (18) comprises: a) a reformer (18) with heat exchange means for receiving said turbine exhaust stream (60) thermal energy; and b) fuel control means (84) for adjusting a flowrate of said fuel stream (72).
7. A method for generating power comprising the steps of: a) compressing an air stream (40) to produce a compressed air stream (46); b) burning a reformed fuel stream (74) in a first portion of said compressed air stream (50) to produce a combustor exhaust stream (76); c) expanding in combination said combustor exhaust stream (76) and a second portion of said compressed air stream (48), which has by-passed the combustor, throughout a turbine means (14) for producing shaft power and a turbine exhaust stream (58) having thermal energy; d) reforming a fuel stream (72) with a steam flow (70) and a first portion of said turbine exhaust stream (58) thermal energy to produce said reformed fuel stream (74); and e) generating said steam flow (70) by heating a water stream (66) with a second portion of said turbine exhaust stream (60) thermal energy.
8. The method of claim 7, wherein said generating said steam flow (70) step further comprises the steps of:
- 12- a) directing said turbine exhaust stream (60) and a heated water stream (68) into evaporator (20) means for producing said steam flow (70) and a cooled turbine exhaust flow (62) therefrom; and b) directing a water stream (66) and said cooled turbine exhaust stream (62) into economizer means (22) for producing said heated water stream (68) and a system exhaust stream (64) therefrom.
9. The method of claim 8, wherein said generating said steam flow (70) step further comprises the step of adjusting a flow rate of said water stream (66) to generate temperature difference of approximately 18°F between said cooled turbine exhaust stream (62) and said heated water stream (68).
10. The method of claim 7, wherein said reforming step further comprises the step of reforming a fuel stream (72) of natural gas, liquefied natural gas, synthetically-derived hydrocarbon fuel, or a mixture thereof.
11. The method of claim 10, wherein said reforming step further comprises the step of adjusting flow rates of said steam flow (70) and said fuel stream (78) of natural gas such that the steam-to-natural-gas mass ratio thereof is approximately 6.5.
12. The method of claim 11, wherein said reforming step further comprises the steps of: a) reforming said fuel stream (72) of natural gas comprising methane; and b) converting approximately 59.6 mole % of said methane to carbon monoxide.
13. The method of claim 7, wherein said reforming step occurs between approximately 400 °F and 1100°F.
14. The method of claim 7, wherein said compressing step further comprising the step of compressing said air stream first portion (50) to a pressure ratio of approximately 15.
15. The method of claim 7, wherein said burning step further comprises the step of producing said combustor exhaust stream (76) comprising approximately 6.7 mole % oxygen.
16. The method of claim 7 further comprising the step of combining said turbine exhaust stream (58) with a second portion of said compressed air stream (52) prior to said reforming step.
- 13-
STATEMENT UNDER ARTICLE 19
All of the claims have been amended to include reference characters. Claim 7 has been cancelled. In addition, claims 1, 5 and original claim 8 have been amended to more particularly point out that a portion of the compressed air from the compressor is introduced directly into the turbine section, bypassing the combustor, and combined with the combustor exhaust stream to expand throughout the turbine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/835,341 | 1997-04-07 | ||
| US08/835,341 US5896738A (en) | 1997-04-07 | 1997-04-07 | Thermal chemical recuperation method and system for use with gas turbine systems |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1998045578A1 WO1998045578A1 (en) | 1998-10-15 |
| WO1998045578B1 true WO1998045578B1 (en) | 1998-12-03 |
Family
ID=25269263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US1998/005520 WO1998045578A1 (en) | 1997-04-07 | 1998-03-19 | Thermal chemical recuperation method and system for use with gas turbine systems |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US5896738A (en) |
| WO (1) | WO1998045578A1 (en) |
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| JP2000080927A (en) * | 1998-09-04 | 2000-03-21 | Toshiba Corp | Gas turbine system |
| US6223519B1 (en) * | 1999-02-11 | 2001-05-01 | Bp Amoco Corporation | Method of generating power using an advanced thermal recuperation cycle |
| US6277894B1 (en) * | 1999-03-30 | 2001-08-21 | Syntroleum Corporation | System and method for converting light hydrocarbons into heavier hydrocarbons with a plurality of synthesis gas subsystems |
| US6202782B1 (en) * | 1999-05-03 | 2001-03-20 | Takefumi Hatanaka | Vehicle driving method and hybrid vehicle propulsion system |
| DE19934927A1 (en) | 1999-07-26 | 2001-02-01 | Abb Alstom Power Ch Ag | Process for cooling guide vanes and / or moving blades in the turbine stages of a gas turbine plant and gas turbine plant for carrying out the process |
| US6921595B2 (en) | 2000-05-31 | 2005-07-26 | Nuvera Fuel Cells, Inc. | Joint-cycle high-efficiency fuel cell system with power generating turbine |
| US6916564B2 (en) * | 2000-05-31 | 2005-07-12 | Nuvera Fuel Cells, Inc. | High-efficiency fuel cell power system with power generating expander |
| US6817182B2 (en) | 2001-12-05 | 2004-11-16 | Lawrence G. Clawson | High-efficiency Otto cycle engine with power generating expander |
| US6442941B1 (en) * | 2000-09-11 | 2002-09-03 | General Electric Company | Compressor discharge bleed air circuit in gas turbine plants and related method |
| US6584760B1 (en) | 2000-09-12 | 2003-07-01 | Hybrid Power Generation Systems, Inc. | Emissions control in a recuperated gas turbine engine |
| US6718772B2 (en) | 2000-10-27 | 2004-04-13 | Catalytica Energy Systems, Inc. | Method of thermal NOx reduction in catalytic combustion systems |
| US7121097B2 (en) | 2001-01-16 | 2006-10-17 | Catalytica Energy Systems, Inc. | Control strategy for flexible catalytic combustion system |
| US6796129B2 (en) | 2001-08-29 | 2004-09-28 | Catalytica Energy Systems, Inc. | Design and control strategy for catalytic combustion system with a wide operating range |
| US20040255588A1 (en) * | 2002-12-11 | 2004-12-23 | Kare Lundberg | Catalytic preburner and associated methods of operation |
| JP2006515659A (en) * | 2003-01-17 | 2006-06-01 | カタリティカ エナジー システムズ， インコーポレイテッド | Dynamic control system and method for a multiple combustion chamber catalytic gas turbine engine |
| FR2852358B1 (en) * | 2003-03-13 | 2006-06-09 | METHOD AND DEVICE FOR COGENERATION BY GAS TURBINE WITH POSTCOMBUSTION CHAMBER | |
| US7975489B2 (en) * | 2003-09-05 | 2011-07-12 | Kawasaki Jukogyo Kabushiki Kaisha | Catalyst module overheating detection and methods of response |
| US7076957B2 (en) * | 2003-09-05 | 2006-07-18 | Praxair Technology, Inc. | Fluid heating and gas turbine integration method |
| JP2005194968A (en) * | 2004-01-09 | 2005-07-21 | Hitachi Ltd | Exhaust reburning plant and remodeling method of plant equipment |
| US7434547B2 (en) * | 2004-06-11 | 2008-10-14 | Nuvera Fuel Cells, Inc. | Fuel fired hydrogen generator |
| US7210467B2 (en) * | 2004-06-22 | 2007-05-01 | Gas Technology Institute | Advanced high efficiency, ultra-low emission, thermochemically recuperated reciprocating internal combustion engine |
| FR2900934B1 (en) * | 2006-05-09 | 2012-09-21 | Inst Francais Du Petrole | PROCESS FOR COPRODUCTION OF ELECTRICITY AND HYDROGEN-RICH GAS BY VAPOREFORMING HYDROCARBON CUTTING WITH CALORIES BY IN SITU HYDROGEN COMBUSTION |
| US20070275278A1 (en) * | 2006-05-27 | 2007-11-29 | Dr. Herng Shinn Hwang | Integrated catalytic and turbine system and process for the generation of electricity |
| US7870717B2 (en) * | 2006-09-14 | 2011-01-18 | Honeywell International Inc. | Advanced hydrogen auxiliary power unit |
| US8397509B2 (en) * | 2007-06-06 | 2013-03-19 | Herng Shinn Hwang | Catalytic engine |
| GB2485836A (en) | 2010-11-27 | 2012-05-30 | Alstom Technology Ltd | Turbine bypass system |
| CA2843645C (en) | 2011-08-04 | 2019-07-30 | Stephen L. Cunningham | Plasma arc furnace and applications |
| US9388766B2 (en) | 2012-03-23 | 2016-07-12 | Concentric Power, Inc. | Networks of cogeneration systems |
| US11050249B2 (en) | 2012-03-23 | 2021-06-29 | Concentric Power, Inc. | Systems and methods for power cogeneration |
| US10865709B2 (en) | 2012-05-23 | 2020-12-15 | Herng Shinn Hwang | Flex-fuel hydrogen reformer for IC engines and gas turbines |
| EP2725207A1 (en) * | 2012-10-29 | 2014-04-30 | Siemens Aktiengesellschaft | Power plant having a steam reformer and gas storage device |
| JP6688742B2 (en) | 2014-05-09 | 2020-04-28 | カニンガム，スティーブン，エル． | Arc furnace smelting system and method |
| EP3274566B1 (en) | 2015-03-25 | 2019-10-09 | Westinghouse Electric Company Llc | Supercritical carbon dioxide power generation system |
| US10626790B2 (en) | 2016-11-16 | 2020-04-21 | Herng Shinn Hwang | Catalytic biogas combined heat and power generator |
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| US4907406A (en) * | 1987-06-23 | 1990-03-13 | Hitachi, Ltd. | Combined gas turbine plant |
| US4991391A (en) * | 1989-01-27 | 1991-02-12 | Westinghouse Electric Corp. | System for cooling in a gas turbine |
| SE468910B (en) * | 1989-04-18 | 1993-04-05 | Gen Electric | POWER SUPPLY UNIT, BY WHICH THE CONTENT OF DAMAGE POLLUTANTS IN THE EXHAUSTS IS REDUCED |
| US5669216A (en) * | 1990-02-01 | 1997-09-23 | Mannesmann Aktiengesellschaft | Process and device for generating mechanical energy |
| US5428953A (en) * | 1992-08-06 | 1995-07-04 | Hitachi, Ltd. | Combined cycle gas turbine with high temperature alloy, monolithic compressor rotor |
| SE500150C2 (en) * | 1992-08-28 | 1994-04-25 | Abb Carbon Ab | Methods and apparatus for supplying additional air to a combustion chamber at a gas turbine plant |
| WO1995011376A1 (en) * | 1993-10-19 | 1995-04-27 | State Of California Energy Resources Conservation And Development Commission | Performance enhanced gas turbine powerplants |
| US5535584A (en) * | 1993-10-19 | 1996-07-16 | California Energy Commission | Performance enhanced gas turbine powerplants |
| DE69421896T2 (en) * | 1993-12-22 | 2000-05-31 | Siemens Westinghouse Power Corp., Orlando | Bypass valve for the combustion chamber of a gas turbine |
| US5431007A (en) * | 1994-03-04 | 1995-07-11 | Westinghouse Elec Corp | Thermochemically recuperated and steam cooled gas turbine system |
| US5628183A (en) * | 1994-10-12 | 1997-05-13 | Rice; Ivan G. | Split stream boiler for combined cycle power plants |
| US5498370A (en) * | 1994-12-15 | 1996-03-12 | Amoco Corporation | Process for hydroshifting dimethyl ether |
| DK171830B1 (en) * | 1995-01-20 | 1997-06-23 | Topsoe Haldor As | Method for generating electrical energy |
-
1997
- 1997-04-07 US US08/835,341 patent/US5896738A/en not_active Expired - Fee Related
-
1998
- 1998-03-19 WO PCT/US1998/005520 patent/WO1998045578A1/en active Application Filing
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