Allam power cycle
{{Short description|Fuel to energy conversion process}}
The Allam Cycle or Allam-Fetvedt Cycle is a process for converting carbonaceous fuelsCarbonaceous fuels include natural gas, biomass, coal, municipal solid waste, and sour gas (natural gas with a high content of sulfur dioxide). into thermal energy, while capturing the generated carbon dioxide and water.
The inventors are English engineer Rodney John Allam, American engineer Jeremy Eron Fetvedt, American scientist Dr. Miles R Palmer, and American businessperson and innovator G. William Brown, Jr.{{cite patent|country=US|number=8959887|title=System and method for high efficiency power generation using a carbon dioxide circulating working fluid|status=patent|pubdate=2015-02-24|gdate=2013-11-04|invent1=Allam, Rodney John|inventor=Allam; Rodney John (Wiltshire, GB), Brown, Jr.; Glenn William (Durham, NC), Palmer; Miles R. (Chapel Hill, NC),|invent2=Brown, Jr., Glenn William|invent3=Palmer, Miles R.|assign1=Palmer Labs, LLC|assign2=8 Rivers Capital, LLC|url=https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8,959,887.PN.&OS=PN/8,959,887&RS=PN/8,959,887}}{{cite patent|country=US|number=8986002|title=Apparatus for combusting a fuel at high pressure and high temperature, and associated system|status=patent|pubdate=2015-03-24|fdate=2011-08-29|invent1=Palmer, Miles R.|inventor=Palmer; Miles R. (Chapel Hill, NC), Allam; Rodney John (Chippenham, GB), Brown, Jr.; Glenn William (Durham, NC), Fetvedt; Jeremy Eron (Raleigh, NC)|invent2=Allam, Rodney John|invent3=Brown, Jr., Glenn William|invent4=Fetvedt, Jeremy Eron|assign1=8 Rivers Capital, LLC|assign2=Palmer Labs, LLC|url=https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=8,986,002.PN.&OS=PN/8,986,002&RS=PN/8,986,002}}{{cite patent|country=US|number=9062608|title=System and method for high efficiency power generation using a carbon dioxide circulating working fluid|status=patent|pubdate=2015-06-23|gdate=2013-03-13|invent1=Allam, Rodney John|inventor=Allam; Rodney John (Wiltshire, GB), Palmer; Miles R. (Chapel Hill, NC), Brown, Jr.; Glenn William (Durham, NC)|invent2=Palmer, Miles R.|invent3=Brown, Jr., Glenn William|assign1=Palmer Labs, LLC|assign2=8 Rivers Capital, LLC|url=https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9,062,608.PN.&OS=PN/9,062,608&RS=PN/9,062,608}}{{cite patent|country=US|number=9068743|title=Apparatus for combusting a fuel at high pressure and high temperature, and associated system|status=patent|fdate=2011-08-29|gdate=2015-03-24|invent1=Palmer, Miles R.|inventor=Palmer; Miles R. (Great Falls, VA), Allam; Rodney John (Chippenham, GB), Brown, Jr.; Glenn William (Durham, NC)|invent2=Allam, Rodney John|invent3=Brown, Jr., Glenn William|assign1=8 Rivers Capital, LLC|assign2=Palmer Labs, LLC|url=https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9,068,743.PN.&OS=PN/9,068,743&RS=PN/9,068,743}}{{cite patent|country=US|number=9416728|title=Apparatus and method for combusting a fuel at high pressure and high temperature, and associated system and device|status=patent|fdate=2010-02-26|gdate=2016-08-16|invent1=Palmer, Miles R.|inventor=Palmer; Miles R. (Great Falls, VA), Allam; Rodney John (Chippenham, GB), Brown, Jr.; Glenn William (Durham, NC)|invent2=Allam, Rodney John|invent3=Brown, Jr., Glenn William|assign1=8 Rivers Capital, LLC|assign2=Palmer Labs, LLC|url=https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9,416,728.PN.&OS=PN/9,416,728&RS=PN/9,416,728}}{{cite patent|country=US|number=9869245|title=System and method for high efficiency power generation using a carbon dioxide circulating working fluid|status=patent|pubdate=2015-09-10|fdate=2015-05-20|gdate=2018-01-16|invent1=Allam, Rodney John|inventor=Allam; Rodney John (Wiltshire, GB), Palmer; Miles R. (Chapel Hill, NC), Brown, Jr.; Glenn William (Durham, NC)|invent2=Palmer, Miles R.|invent3=Brown, Jr., Glenn William|assign1=8 Rivers Capital, LLC|url=https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=9,869,245.PN.&OS=PN/9,869,245&RS=PN/9,869,245}}{{cite patent|country=US|number=10018115|title=System and method for high efficiency power generation using a carbon dioxide circulating working fluid|status=patent|pubdate=2015-03-24|fdate=2011-08-29|invent1=Palmer, Miles R.|inventor=Palmer; Miles R. (Chapel Hill, NC), Allam; Rodney John (Chippenham, GB), Brown, Jr.; Glenn William (Durham, NC), Fetvedt; Jeremy Eron (Raleigh, NC)|invent2=Allam, Rodney John|invent3=Brown, Jr., Glenn William|invent4=Fetvedt, Jeremy Eron|assign1=8 Rivers Capital, LLC|url=https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=10,018,115.PN.&OS=PN/10,018,115&RS=PN/10,018,115}}{{cite patent|country=US|number=10047671|title=System and method for high efficiency power generation using a carbon dioxide circulating working fluid|status=patent|pubdate=2018-08-14|gdate=2015-01-23|invent1=Allam, Rodney John|inventor=Allam; Rodney John (Wiltshire, GB), Brown, Jr.; Glenn William (Durham, NC), Palmer; Miles R. (Chapel Hill, NC),|invent2=Brown, Jr., Glenn William|invent3=Palmer, Miles R.|assign1=Palmer Labs, LLC|assign2=8 Rivers Capital, LLC|url=https://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=10,047,671.PN.&OS=PN/10,047,671&RS=PN/10,047,671}} The Allam-Fetvedt Cycle was recognized by MIT Technology Review on the 2018 list of 10 Breakthrough Technologies.{{cite web |title=2018 |url=https://www.technologyreview.com/10-breakthrough-technologies/2018/ |access-date=2020-10-01 |website=MIT Technology Review |language=en}}
This cycle was validated at a 50 MWth natural gas fed test facility in La Porte, Texas in May 2018.
Description
The Allam-Fetvedt Cycle is a recuperated, high-pressure, Brayton cycle employing a transcritical {{CO2}} working fluid with an oxy-fuel combustion regime. This cycle begins by burning a gaseous fuel with oxygen and a hot, high-pressure, recycled supercritical {{CO2}} working fluid in a combustor. The recycled {{CO2}} stream serves the dual purpose of lowering the combustion flame temperature to a manageable level and diluting the combustion products such that the cycle working fluid is predominantly {{CO2}}. The pressure in the combustor can be as high as approximately 30 MPa. The combustion feedstock consists of approximately 95% recycled {{CO2}} by mass.
The combustor provides high-pressure exhaust that can be supplied to a turbine expander operating at a pressure ratio between 6 and 12. The expander discharge leaves as a subcritical {{CO2}} mixture predominantly commingled with combustion derived water. This fluid enters an economizer heat exchanger, which cools the expander discharge to below 65 °C against the stream of {{CO2}} that is recycled to the combustor. Upon exiting the economizer heat exchanger, the expander exhaust is further cooled to near ambient temperature by a central cooling system, enabling liquid water to be removed from the working fluid and recycled for beneficial use.
The remaining working fluid of nearly pure {{CO2}} then enters a compression and pumping stage. The compression system consists of a conventional inter-cooled centrifugal compressor with an inlet pressure below the {{CO2}} critical pressure. The {{CO2}} working fluid is compressed and then cooled to near ambient temperature in the compressor after-cooler. At this point, the combination of compressing and cooling the working fluid permits it to achieve a density in excess of 500 kg/m3. In this condition, the {{CO2}} stream can be pumped to the high combustion pressure required using a multi-stage centrifugal pump. Finally, the high-pressure working fluid is sent back through the economizer heat exchanger to be reheated and returned to the combustor.
The net {{CO2}} product derived from the addition of fuel and oxygen in the combustor is removed from the high-pressure stream; at this point, the {{CO2}} product is high-pressure and high purity, ready for sequestration or utilization without requiring further compression.{{cite news|date=15 May 2016|title=Breaking ground for a groundbreaker: the first Allam Cycle power plant|newspaper=Modern Power Systems|url=http://www.modernpowersystems.com/features/featurebreaking-ground-for-a-groundbreaker-the-first-allam-cycle-power-plant-4893271/|access-date=29 November 2016}}{{cite news|last=Isles|first=Junior|year=2014|title=Gearing up for a new supercritical CO2 power cycle system|volume=44|newspaper=Gas Turbine World|publisher=Pequot Publishing|issue=6|url=http://www.gasturbineworld.com/assets/nov_dec_2014.pdf|access-date=29 November 2016|archive-date=11 August 2016|archive-url=https://web.archive.org/web/20160811015533/http://gasturbineworld.com/assets/nov_dec_2014.pdf|url-status=dead}}{{cite news|last=Grant|first=Annalee|date=6 March 2015|title=Exelon, NET Power confident in planned carbon capture pilot project in Texas|newspaper=SNL|publisher=S&P Global|url=https://www.snl.com/interactiveX/Article.aspx?CdId=A-31571952-12589&FreeAccess=1|access-date=29 November 2016}}{{cite news|last=Dodge|first=Edward|date=14 November 2014|title=CCS Breakthrough: sCO2 Power Cycles Offer Improved Efficiency and Integrated Carbon Capture|newspaper=Breaking Energy|publisher=Breaking Media|url=http://breakingenergy.com/2014/11/14/ccs-breakthrough-sco2-power-cycles-offer-improved-efficiency-and-integrated-carbon-capture/|access-date=29 November 2016}}
| class="wikitable"
|+Mass flow of the Allam cycle components for natural gas fuel (% of total mass entering the combustion stage) |
| Stage of the cycle
|Oxygen |Natural gas |Water (H2O) | colspan="2" |Carbon dioxide ({{CO2}}) |
| Combustion Inlet
|4.75% |1.25% |– | colspan="2" |94% (hot, high pressure) |
| Turbine Inlet
|– |– |2.75% (very hot steam) | colspan="2" |97.25% (very hot) |
| Heat Exchanger Inlet (Exhaust)
|– |– |2.75% (hot steam) | colspan="2" |97.25% (hot, low pressure) |
| Heat Exchanger Outlet (Exhaust)
|– |– | rowspan="4" |2.75% (steam condensed) | colspan="2" |97.25% (to compressor-pump) |
| Compressor-Pump Outlet
|– |– |94% (to heat exchanger) | rowspan="3" |3.25% (CCS/CCUS) |
| Heat Exchanger Inlet (Recycle)
|– |– |94% (compressed) |
| Heat Exchanger Outlet (Recycle)
|– |– |94% (hot, compressed, to be recycled) |
In order for the system to achieve high thermal efficiency, a close temperature approach is needed on the high-temperature side of the primary heat exchanger. Due to the cooling process employed at the compression and pumping stage, a large energy imbalance would typically exist in the cycle between the cooling expander exhaust flow and the reheating {{CO2}} recycle flow.
The Allam-Fetvedt Cycle corrects this imbalance through the incorporation of low-grade heat at the low-temperature end of the recuperative heat exchanger. Due to the low temperatures at the cool end of the cycle, this low-grade heat only needs to be in the range of 100 °C to 400 °C. A convenient source of this heat is the Air Separation Unit (ASU) required for the oxy-fuel combustion regime.
When burning natural gas as a fuel, this basic configuration has been modeled to achieve an efficiency up to 60% (LHV) as a power cycle net of all parasitic loads, including the energy-intensive ASU. Despite its novelty, the components required by this cycle are commercially available, with the exception of the combustion turbine package. The turbine relies on proven technologies and approaches used by existing gas and steam turbine design tools.{{Cite journal |last1=Allam |first1=Rodney |last2=Martin |first2=Scott |last3=Forrest |first3=Brock |last4=Fetvedt |first4=Jeremy |last5=Lu|first5=Xijia|last6=Freed|first6=David|last7=Brown|first7=G. William |last8=Sasaki |first8=Takashi |last9=Itoh |first9=Masao |last10=Manning |first10=James |date=2017-07-01 |title=Demonstration of the Allam Cycle: An Update on the Development Status of a High Efficiency Supercritical Carbon Dioxide Power Process Employing Full Carbon Capture|journal=Energy Procedia |language=en |volume=114 |pages=5948–5966 |doi=10.1016/j.egypro.2017.03.1731 |issn=1876-6102 |doi-access=free}}{{Cite book |last1=Lu |first1=Xijia|last2=Forrest|first2=Brock|last3=Martin|first3=Scott|last4=Fetvedt|first4=Jeremy|last5=McGroddy|first5=Michael|last6=Freed|first6=David|title=Proceedings of the ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. Volume 9: Oil and Gas Applications; Supercritical CO2 Power Cycles; Wind Energy|date=2016-09-20|chapter=Integration and Optimization of Coal Gasification Systems With a Near-Zero Emissions Supercritical Carbon Dioxide Power Cycle|chapter-url=https://asmedigitalcollection.asme.org/GT/proceedings/GT2016/49873/V009T36A019/236485 |language=en |publisher=American Society of Mechanical Engineers Digital Collection |doi=10.1115/GT2016-58066|isbn=978-0-7918-4987-3}}
Applications
Construction began in March 2016 in La Porte, Texas on a 50 MWth industrial test facility to showcase the Allam-Fetvedt Cycle, finishing in 2017. In 2018, the Allam-Fetvedt Cycle and supporting technologies were validated,{{cite web|last=Rathi|first=Akshat|title=A US startup has lit the first fire in its zero-emissions fossil-fuel power plant|url=https://qz.com/1292891/net-powers-has-successfully-fired-up-its-zero-emissions-fossil-fuel-power-plant/ |access-date=2020-10-01|website=Quartz|date=31 May 2018 |language=en}} allowing OEMs to certify components for use with future production plants.
On November 15, 2021, at approximately 7:40 pm EST the test facility successfully synchronized to the ERCOT grid{{cite web|title=Power Engineering International|url=https://www.powerengineeringint.com/gas-oil-fired/project-generating-emissions-free-power-from-natural-gas-achieves-grid-sync/|access-date=November 18, 2021|website=Power Engineering International|date=18 November 2021}} proving that the Allam Fetvedt Cycle was capable of generating power at 60 Hz.
This test facility is owned and operated by NET Power, which is owned by Constellation Energy Corporation, Occidental Petroleum (Oxy) Low Carbon Ventures, Baker Hughes and 8 Rivers Capital (the inventor of the technology).
NET Power was awarded the 2018 International Excellence in Energy Breakthrough Technological Project of the Year at the Abu Dhabi International Petroleum Exhibition and Conference (ADIPEC).{{cite press release|last=LLC|first=NET Power|title=NET Power Demonstration Plant Wins 2018 ADIPEC Breakthrough Technological Project of the Year|url=https://www.prnewswire.com/news-releases/net-power-demonstration-plant-wins-2018-adipec-breakthrough-technological-project-of-the-year-300750163.html|access-date=2020-10-01|website=www.prnewswire.com|language=en}}
Patent history
| class="wikitable"
! Publication Number !! Title !! Application Date !! Publication Date !! Current Assignee !! Legal Status & Events !! Inventor Name |
| [https://analytics.patsnap.com/patent-view/abst?patentId=35856985-dbdb-4cf7-b667-4fec737937a3 US20100300063A1]
| Apparatus and Method for Combusting a Fuel at High Pressure and High Temperature, and Associated System and Device | 2010-02-26 | 2010-12-02 | 8 RIVERS CAPITAL, LLC | Granted Pledge Transfer | PALMER, MILES R.; ALLAM, RODNEY JOHN; BROWN, JR., GLENN WILLIAM |
| [https://analytics.patsnap.com/patent-view/abst?patentId=1584297c-0727-45ff-bf62-3410844a39a2 US9416728B2]
| Apparatus and method for combusting a fuel at high pressure and high temperature, and associated system and device | 2010-02-26 | 2016-08-16 | 8 RIVERS CAPITAL, LLC | Granted Pledge Transfer | PALMER, MILES R.; ALLAM, RODNEY JOHN; BROWN, JR., GLENN WILLIAM |
| [https://analytics.patsnap.com/patent-view/abst?patentId=34202568-b718-4856-97d1-13993a29addc US20110179799A1]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2010-08-31 | 2011-07-28 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | ALLAM, RODNEY JOHN; PALMER, MILES; BROWN, JR., GLENN WILLIAM |
| [https://analytics.patsnap.com/patent-view/abst?patentId=cbd70caf-f7b9-46b5-9767-25c2129e3052 US8596075B2]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2010-08-31 | 2013-12-03 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | ALLAM, RODNEY JOHN; PALMER, MILES; BROWN, JR., GLENN WILLIAM |
| [https://analytics.patsnap.com/patent-view/abst?patentId=96c1aed1-a794-44d2-bda6-31c6019ac13e US20120067056A1]
| System and method for high efficiency power generation using a nitrogen gas working fluid | 2011-09-19 | 2012-03-22 | 8 RIVERS CAPITAL, LLC | Granted Pledge | PALMER, MILES; ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON |
| [https://analytics.patsnap.com/patent-view/abst?patentId=8a363f16-bab5-4d5f-9b19-1b2f2f1379a1 US20120067568A1]
| Method of using carbon dioxide in recovery of formation deposits | 2011-09-19 | 2012-03-22 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | PALMER, MILES; ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON; FREED, DAVID ARTHUR; BROWN, JR., GLENN WILLIAM |
| [https://analytics.patsnap.com/patent-view/abst?patentId=3f967051-99cd-48c4-ae28-b6c86ecc100b US8869889B2]
| Method of using carbon dioxide in recovery of formation deposits | 2011-09-19 | 2014-10-28 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | PALMER, MILES; ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON; FREED, DAVID ARTHUR; BROWN, JR., GLENN WILLIAM |
| [https://analytics.patsnap.com/patent-view/abst?patentId=e9f66870-507d-45a9-800a-7a9c987b406c US9410481B2]
| System and method for high efficiency power generation using a nitrogen gas working fluid | 2011-09-19 | 2016-08-09 | 8 RIVERS CAPITAL, LLC | Granted Pledge | PALMER, MILES; ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON |
| [https://analytics.patsnap.com/patent-view/abst?patentId=cd6edc12-b40c-458d-8193-ab98119051c0 US20130205746A1]
| Partial oxidation reaction with closed cycle quench | 2013-02-11 | 2013-08-15 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON; PALMER, MILES R. |
| [https://analytics.patsnap.com/patent-view/abst?patentId=da9e903d-4162-4cd1-a48f-acee6c3cc516 US8776532B2]
| Partial oxidation reaction with closed cycle quench | 2013-02-11 | 2014-07-15 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON; PALMER, MILES R. |
| [https://analytics.patsnap.com/patent-view/abst?patentId=5f5e2197-103e-464e-907f-7651ff853542 US20130199195A1]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2013-03-14 | 2013-08-08 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | ALLAM, RODNEY JOHN; PALMER, MILES R.; BROWN, JR., GLENN WILLIAM |
| [https://analytics.patsnap.com/patent-view/abst?patentId=3c1a04af-c99d-444f-9adf-efdda9de451c US9062608B2]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2013-03-14 | 2015-06-23 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | ALLAM, RODNEY JOHN; PALMER, MILES R.; BROWN, JR., GLENN WILLIAM |
| [https://analytics.patsnap.com/patent-view/abst?patentId=b4d1a05c-9644-464e-9032-c18d6efefe3e US10018115B2]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2013-03-15 | 2018-07-10 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | ALLAM, RODNEY JOHN; PALMER, MILES R.; BROWN, JR., GLENN WILLIAM; FETVEDT, JEREMY ERON; FORREST, BROCK ALAN |
| [https://analytics.patsnap.com/patent-view/abst?patentId=7365b93d-d3b7-4bf9-94a6-c8489c1c6c0b US20130213049A1]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2013-03-15 | 2013-08-22 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | ALLAM, RODNEY JOHN; PALMER, MILES R.; BROWN, JR., GLENN WILLIAM; FETVEDT, JEREMY ERON; FORREST, BROCK ALAN |
| [https://analytics.patsnap.com/patent-view/abst?patentId=cf02f91f-aa35-4493-a76d-211f554644d3 US20140053529A1]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2013-11-04 | 2014-02-27 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | ALLAM, RODNEY JOHN; BROWN, JR., GLENN WILLIAM; PALMER, MILES R. |
| [https://analytics.patsnap.com/patent-view/abst?patentId=df47d6b4-8b2d-4281-a5c1-c3c00d4c18bf US8959887B2]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2013-11-04 | 2015-02-24 | PALMER LABS, LLC; 8 RIVERS CAPITAL, LLC | Granted Pledge | ALLAM, RODNEY JOHN; BROWN, JR., GLENN WILLIAM; PALMER, MILES R. |
| [https://analytics.patsnap.com/patent-view/abst?patentId=f016a1bb-a9ec-4157-9dd0-662fccc234e1 US20140290263A1]
| Partial oxidation reaction with closed cycle quench | 2014-06-12 | 2014-10-02 | 8 RIVERS CAPITAL, LLC; PALMER LABS, LLC | Granted | ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON; PALMER, MILES R. |
| [https://analytics.patsnap.com/patent-view/abst?patentId=c6c300c2-ea58-4881-9098-24355c4eaa6d US9581082B2]
| Partial oxidation reaction with closed cycle quench | 2014-06-12 | 2017-02-28 | 8 RIVERS CAPITAL, LLC; PALMER LABS, LLC | Granted | ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON; PALMER, MILES R. |
| [https://analytics.patsnap.com/patent-view/abst?patentId=986bdec6-af60-489c-9b18-7ba0759bd8c3 US10927679B2]
| High efficiency power production methods, assemblies, and systems | 2014-07-25 | 2021-02-23 | 8 RIVERS CAPITAL, LLC | Granted | PALMER, MILES R.; FETVEDT, JEREMY ERON; ALLAM, RODNEY JOHN |
| [https://analytics.patsnap.com/patent-view/abst?patentId=f7aeaf2c-890c-4601-abed-461d8a4f4603 US20140331687A1]
| High Efficiency Power Production Methods, Assemblies, and Systems | 2014-07-25 | 2014-11-13 | 8 RIVERS CAPITAL, LLC | Granted | PALMER, MILES R.; FETVEDT, JEREMY ERON; ALLAM, RODNEY JOHN |
| [https://analytics.patsnap.com/patent-view/abst?patentId=43cbe0a1-c31a-4a56-b1f1-f2720e1f526d US10047671B2]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2015-01-23 | 2018-08-14 | 8 RIVERS CAPITAL, LLC | Granted | ALLAM, RODNEY JOHN; BROWN, JR., GLENN WILLIAM; PALMER, MILES R. |
| [https://analytics.patsnap.com/patent-view/abst?patentId=d07a6a68-2321-4165-8cb8-28e306fb8631 US20160215693A1]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2015-01-23 | 2016-07-28 | 8 RIVERS CAPITAL, LLC | Granted | ALLAM, RODNEY JOHN; BROWN, JR., GLENN WILLIAM; PALMER, MILES R. |
| [https://analytics.patsnap.com/patent-view/abst?patentId=706c03f6-8e38-4250-ac0b-7c6d38dcf898 US20150252724A1]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2015-05-20 | 2015-09-10 | 8 RIVERS CAPITAL, LLC | Granted | ALLAM, RODNEY JOHN; PALMER, MILES R.; BROWN, JR., GLENN WILLIAM |
| [https://analytics.patsnap.com/patent-view/abst?patentId=2e87dfc6-32c4-48f4-8391-1133d979d35c US9869245B2]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2015-05-20 | 2018-01-16 | 8 RIVERS CAPITAL, LLC | Granted | ALLAM, RODNEY JOHN; PALMER, MILES R.; BROWN, JR., GLENN WILLIAM |
| [https://analytics.patsnap.com/patent-view/abst?patentId=79440fc5-6790-42f9-adcb-0b32731ec28b US20160319741A1]
| System and method for high efficiency power generation using a nitrogen gas working fluid | 2016-07-14 | 2016-11-03 | 8 RIVERS CAPITAL, LLC | Granted | PALMER, MILES; ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON |
| [https://analytics.patsnap.com/patent-view/abst?patentId=350cfa0e-5e77-4c74-8ae4-dff2fabeff94 US9611785B2]
| System and method for high efficiency power generation using a nitrogen gas working fluid | 2016-07-14 | 2017-04-04 | 8 RIVERS CAPITAL, LLC | Granted | PALMER, MILES; ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON |
| [https://analytics.patsnap.com/patent-view/abst?patentId=01827720-8062-40b9-a5de-adb0520c8734 US10054046B2]
| System and method for high efficiency power generation using a nitrogen gas working fluid | 2017-03-10 | 2018-08-21 | 8 RIVERS CAPITAL, LLC | Granted | PALMER, MILES; ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON |
| [https://analytics.patsnap.com/patent-view/abst?patentId=98bf435e-7f8d-4f83-8214-c4b7faf9edcb US20180016979A1]
| System and method for high efficiency power generation using a nitrogen gas working fluid | 2017-03-10 | 2018-01-18 | 8 RIVERS CAPITAL, LLC | Granted | PALMER, MILES; ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON |
| [https://analytics.patsnap.com/patent-view/abst?patentId=44ac8b0b-9b86-4f52-954c-46bcb6460900 US10989113B2]
| System and method for power production using partial oxidation | 2017-09-13 | 2021-04-27 | 8 RIVERS CAPITAL, LLC | Granted | FORREST, BROCK ALAN; LU, XIJIA; ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON; PALMER, MILES R. |
| [https://analytics.patsnap.com/patent-view/abst?patentId=e3df0f8e-8446-449c-82db-793634c22058 US20180073430A1]
| System and method for power production using partial oxidation | 2017-09-13 | 2018-03-15 | 8 RIVERS CAPITAL, LLC | Granted | FORREST, BROCK ALAN; LU, XIJIA; ALLAM, RODNEY JOHN; FETVEDT, JEREMY ERON; PALMER, MILES R. |
| [https://analytics.patsnap.com/patent-view/abst?patentId=82c422f7-3cd2-48ab-87fb-25f7454e09f2 US10975766B2]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2018-06-13 | 2021-04-13 | 8 RIVERS CAPITAL, LLC | Granted | ALLAM, RODNEY JOHN; PALMER, MILES R.; BROWN, JR., GLENN WILLIAM; FETVEDT, JEREMY ERON; FORREST, BROCK ALAN |
| [https://analytics.patsnap.com/patent-view/abst?patentId=b6dfab6d-75a8-4e0f-ba12-3f461bb97495 US20180291805A1]
| System and method for high efficiency power generation using a carbon dioxide circulating working fluid | 2018-06-13 | 2018-10-11 | 8 RIVERS CAPITAL, LLC | Granted | ALLAM, RODNEY JOHN; PALMER, MILES R.; BROWN, JR., GLENN WILLIAM; FETVEDT, JEREMY ERON; FORREST, BROCK ALAN |
See also
References
{{Reflist|30em}}
External links
- [https://web.archive.org/web/20161130185500/http://www.modernpowersystems.com/features/featurebreaking-ground-for-a-groundbreaker-the-first-allam-cycle-power-plant-4893271/featurebreaking-ground-for-a-groundbreaker-the-first-allam-cycle-power-plant-4893271-3.html Process diagram for natural gas]
- [https://web.archive.org/web/20161130185339/http://www.modernpowersystems.com/features/featurenet-powers-co2-cycle-the-breakthrough-that-ccs-needs/featurenet-powers-co2-cycle-the-breakthrough-that-ccs-needs-3.html Process diagram for coal]
- [https://web.archive.org/web/20161130185336/http://www.modernpowersystems.com/features/featurebreaking-ground-for-a-groundbreaker-the-first-allam-cycle-power-plant-4893271/featurebreaking-ground-for-a-groundbreaker-the-first-allam-cycle-power-plant-4893271-4.html Mass flow diagram]
- [https://web.archive.org/web/20161201012715/http://www.modernpowersystems.com/features/featurenet-powers-co2-cycle-the-breakthrough-that-ccs-needs/featurenet-powers-co2-cycle-the-breakthrough-that-ccs-needs-2.html Pressure and specific enthalpy diagram]