Performances and emission characteristics of NH3-air and NH3-CH4-air combustion gas-turbine power generations

Osamu Kurata; Norihiko Iki; Takayuki Matsunuma; Takahiro Inoue; Taku Tsujimura; Hirohide Furutani; Hideaki Kobayashi; Akihiro Hayakawa

doi:10.1016/j.proci.2016.07.088

Performances and emission characteristics of NH₃-air and NH₃-CH₄-air combustion gas-turbine power generations

Osamu Kurata, Norihiko Iki, Takayuki Matsunuma, Takahiro Inoue, Taku Tsujimura, Hirohide Furutani, Hideaki Kobayashi, Akihiro Hayakawa

Complex Flow Research Division

Research output: Contribution to journal › Article › peer-review

213 Citations (Scopus)

Abstract

For the first time NH₃-air combustion power generation has been successfully realized using a 50-kW class micro gas turbine system at the National Institute of Advanced Industrial Science and Technology Japan. The combustor adopted gaseous NH₃ fuel and diffusion combustion to enhance flame stability. The emission of NO and unburnt NH₃ depends on the combustor inlet temperature. Emission data revealed the existence of NH₃ fuel-rich and fuel-lean regions in the primary combustion zone. It is presumed that unburnt NH₃ is released from the fuel-rich region while NO is released from the fuel-lean region. When diluted air enters the secondary combustion zone unburnt NH₃ is expected to react with NO through selective non-catalytic reduction. Furthermore NH₃-CH₄-air combustion operation tests demonstrated that the increase of the NH₃ fuel ratio significantly increasef the NO emission wheile it decreased the NO conversion ratio. To achieve low NO_x combustion in NH₃-air combustion gas turbines large quantities of NH₃ fuel should be burned and produce both rich and lean fuel mixtures in the primary combustion zone.

Original language	English
Pages (from-to)	3351-3359
Number of pages	9
Journal	Proceedings of the Combustion Institute
Volume	36
Issue number	3
DOIs	https://doi.org/10.1016/j.proci.2016.07.088
Publication status	Published - 2017

Keywords

Carbon-free power generation
Low NO combustion
NH-air gas turbine

ASJC Scopus subject areas

Chemical Engineering(all)
Mechanical Engineering
Physical and Theoretical Chemistry

Access to Document

10.1016/j.proci.2016.07.088

Cite this

@article{a4b099e79f7a481a8df9561ddcc3cfef,

title = "Performances and emission characteristics of NH3-air and NH3-CH4-air combustion gas-turbine power generations",

abstract = "For the first time NH3-air combustion power generation has been successfully realized using a 50-kW class micro gas turbine system at the National Institute of Advanced Industrial Science and Technology Japan. The combustor adopted gaseous NH3 fuel and diffusion combustion to enhance flame stability. The emission of NO and unburnt NH3 depends on the combustor inlet temperature. Emission data revealed the existence of NH3 fuel-rich and fuel-lean regions in the primary combustion zone. It is presumed that unburnt NH3 is released from the fuel-rich region while NO is released from the fuel-lean region. When diluted air enters the secondary combustion zone unburnt NH3 is expected to react with NO through selective non-catalytic reduction. Furthermore NH3-CH4-air combustion operation tests demonstrated that the increase of the NH3 fuel ratio significantly increasef the NO emission wheile it decreased the NO conversion ratio. To achieve low NOx combustion in NH3-air combustion gas turbines large quantities of NH3 fuel should be burned and produce both rich and lean fuel mixtures in the primary combustion zone.",

keywords = "Carbon-free power generation, Low NO combustion, NH-air gas turbine",

author = "Osamu Kurata and Norihiko Iki and Takayuki Matsunuma and Takahiro Inoue and Taku Tsujimura and Hirohide Furutani and Hideaki Kobayashi and Akihiro Hayakawa",

note = "Funding Information: This work was supported by the Council for Science, Technology and Innovation (CSTI), the Cross-ministerial Strategic Innovation Promotion Program (SIP), {"}Energy Carriers{"} (Funding agency: Japan Science and Technology Agency (JST)). The authors also thank {"}Toyota Turbine and Systems Inc.{"} for their assistance with the operation of the micro gas turbine system. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.",

year = "2017",

doi = "10.1016/j.proci.2016.07.088",

language = "English",

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T1 - Performances and emission characteristics of NH3-air and NH3-CH4-air combustion gas-turbine power generations

AU - Kurata, Osamu

AU - Iki, Norihiko

AU - Matsunuma, Takayuki

AU - Inoue, Takahiro

AU - Tsujimura, Taku

AU - Furutani, Hirohide

AU - Kobayashi, Hideaki

AU - Hayakawa, Akihiro

N1 - Funding Information: This work was supported by the Council for Science, Technology and Innovation (CSTI), the Cross-ministerial Strategic Innovation Promotion Program (SIP), "Energy Carriers" (Funding agency: Japan Science and Technology Agency (JST)). The authors also thank "Toyota Turbine and Systems Inc." for their assistance with the operation of the micro gas turbine system. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.

PY - 2017

Y1 - 2017

N2 - For the first time NH3-air combustion power generation has been successfully realized using a 50-kW class micro gas turbine system at the National Institute of Advanced Industrial Science and Technology Japan. The combustor adopted gaseous NH3 fuel and diffusion combustion to enhance flame stability. The emission of NO and unburnt NH3 depends on the combustor inlet temperature. Emission data revealed the existence of NH3 fuel-rich and fuel-lean regions in the primary combustion zone. It is presumed that unburnt NH3 is released from the fuel-rich region while NO is released from the fuel-lean region. When diluted air enters the secondary combustion zone unburnt NH3 is expected to react with NO through selective non-catalytic reduction. Furthermore NH3-CH4-air combustion operation tests demonstrated that the increase of the NH3 fuel ratio significantly increasef the NO emission wheile it decreased the NO conversion ratio. To achieve low NOx combustion in NH3-air combustion gas turbines large quantities of NH3 fuel should be burned and produce both rich and lean fuel mixtures in the primary combustion zone.

AB - For the first time NH3-air combustion power generation has been successfully realized using a 50-kW class micro gas turbine system at the National Institute of Advanced Industrial Science and Technology Japan. The combustor adopted gaseous NH3 fuel and diffusion combustion to enhance flame stability. The emission of NO and unburnt NH3 depends on the combustor inlet temperature. Emission data revealed the existence of NH3 fuel-rich and fuel-lean regions in the primary combustion zone. It is presumed that unburnt NH3 is released from the fuel-rich region while NO is released from the fuel-lean region. When diluted air enters the secondary combustion zone unburnt NH3 is expected to react with NO through selective non-catalytic reduction. Furthermore NH3-CH4-air combustion operation tests demonstrated that the increase of the NH3 fuel ratio significantly increasef the NO emission wheile it decreased the NO conversion ratio. To achieve low NOx combustion in NH3-air combustion gas turbines large quantities of NH3 fuel should be burned and produce both rich and lean fuel mixtures in the primary combustion zone.

KW - Carbon-free power generation

KW - Low NO combustion

KW - NH-air gas turbine

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