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Akihiro Hayakawa - One of the best experts on this subject based on the ideXlab platform.
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performances and emission characteristics of nh3 air and nh3ch4 air Combustion Gas turbine power generations
Proceedings of the Combustion Institute, 2017Co-Authors: Osamu Kurata, Taku Tsujimura, Hirohide Furutani, Hideaki Kobayashi, Takayuki Matsunuma, Takahiro Inoue, Akihiro HayakawaAbstract:Abstract For the first time, NH 3 –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 (AIST), Japan. Based on the global demand for carbon-free power generation as well as recent advances involving Gas-turbine technologies, such as heat-regenerative cycles, rapid fuel mixing using strong swirling flows, and NO x reduction using selective catalytic reduction (SCR), allow us to realize NH 3 –air Combustion Gas-turbine system, which was abandoned in the 1960′s. In the present system, the combustor adopted Gaseous NH 3 fuel and diffusion Combustion to enhance flame stability. The NH 3 pre-cracking apparatus for Combustion enhancement using generated H 2 was not employed. The NH 3 –air Combustion Gas-turbine power generation system can be operated over a wide range of power and rotational speeds, i.e., 18.4 kW to 44.4 kW and 70,000 rpm to 80,000 rpm, respectively. The Combustion efficiency of the NH 3 –air Gas turbine ranged from 89% to 96% at 80,000 rpm. The emission of NO and unburnt NH 3 depends on the combustor inlet temperature. Emission data indicates that there are NH 3 fuel-rich and fuel-lean regions in the primary Combustion zone. It is presumed that unburnt NH 3 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 NH 3 is expected to react with NO through selective non-catalytic reduction (SNCR). NH 3 CH 4 –air Combustion operation tests were also performed and the results show that the increase of the NH 3 fuel ratio significantly increases the NO emission, whereas it decreases the NO conversion ratio. To achieve low NO x Combustion in NH 3 –air Combustion Gas turbines, it is suggested to burn large quantities of NH 3 fuel and produce both rich and lean fuel mixtures in the primary Combustion zone.
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performances and emission characteristics of nh3 air and nh3ch4 air Combustion Gas turbine power generations
Proceedings of the Combustion Institute, 2017Co-Authors: Osamu Kurata, Taku Tsujimura, Hirohide Furutani, Hideaki Kobayashi, Takayuki Matsunuma, Takahiro Inoue, Norihiko Iki, Akihiro HayakawaAbstract:Abstract For the first time, NH 3 –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 (AIST), Japan. Based on the global demand for carbon-free power generation as well as recent advances involving Gas-turbine technologies, such as heat-regenerative cycles, rapid fuel mixing using strong swirling flows, and NO x reduction using selective catalytic reduction (SCR), allow us to realize NH 3 –air Combustion Gas-turbine system, which was abandoned in the 1960′s. In the present system, the combustor adopted Gaseous NH 3 fuel and diffusion Combustion to enhance flame stability. The NH 3 pre-cracking apparatus for Combustion enhancement using generated H 2 was not employed. The NH 3 –air Combustion Gas-turbine power generation system can be operated over a wide range of power and rotational speeds, i.e., 18.4 kW to 44.4 kW and 70,000 rpm to 80,000 rpm, respectively. The Combustion efficiency of the NH 3 –air Gas turbine ranged from 89% to 96% at 80,000 rpm. The emission of NO and unburnt NH 3 depends on the combustor inlet temperature. Emission data indicates that there are NH 3 fuel-rich and fuel-lean regions in the primary Combustion zone. It is presumed that unburnt NH 3 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 NH 3 is expected to react with NO through selective non-catalytic reduction (SNCR). NH 3 CH 4 –air Combustion operation tests were also performed and the results show that the increase of the NH 3 fuel ratio significantly increases the NO emission, whereas it decreases the NO conversion ratio. To achieve low NO x Combustion in NH 3 –air Combustion Gas turbines, it is suggested to burn large quantities of NH 3 fuel and produce both rich and lean fuel mixtures in the primary Combustion zone.
Osamu Kurata - One of the best experts on this subject based on the ideXlab platform.
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performances and emission characteristics of nh3 air and nh3ch4 air Combustion Gas turbine power generations
Proceedings of the Combustion Institute, 2017Co-Authors: Osamu Kurata, Taku Tsujimura, Hirohide Furutani, Hideaki Kobayashi, Takayuki Matsunuma, Takahiro Inoue, Akihiro HayakawaAbstract:Abstract For the first time, NH 3 –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 (AIST), Japan. Based on the global demand for carbon-free power generation as well as recent advances involving Gas-turbine technologies, such as heat-regenerative cycles, rapid fuel mixing using strong swirling flows, and NO x reduction using selective catalytic reduction (SCR), allow us to realize NH 3 –air Combustion Gas-turbine system, which was abandoned in the 1960′s. In the present system, the combustor adopted Gaseous NH 3 fuel and diffusion Combustion to enhance flame stability. The NH 3 pre-cracking apparatus for Combustion enhancement using generated H 2 was not employed. The NH 3 –air Combustion Gas-turbine power generation system can be operated over a wide range of power and rotational speeds, i.e., 18.4 kW to 44.4 kW and 70,000 rpm to 80,000 rpm, respectively. The Combustion efficiency of the NH 3 –air Gas turbine ranged from 89% to 96% at 80,000 rpm. The emission of NO and unburnt NH 3 depends on the combustor inlet temperature. Emission data indicates that there are NH 3 fuel-rich and fuel-lean regions in the primary Combustion zone. It is presumed that unburnt NH 3 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 NH 3 is expected to react with NO through selective non-catalytic reduction (SNCR). NH 3 CH 4 –air Combustion operation tests were also performed and the results show that the increase of the NH 3 fuel ratio significantly increases the NO emission, whereas it decreases the NO conversion ratio. To achieve low NO x Combustion in NH 3 –air Combustion Gas turbines, it is suggested to burn large quantities of NH 3 fuel and produce both rich and lean fuel mixtures in the primary Combustion zone.
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performances and emission characteristics of nh3 air and nh3ch4 air Combustion Gas turbine power generations
Proceedings of the Combustion Institute, 2017Co-Authors: Osamu Kurata, Taku Tsujimura, Hirohide Furutani, Hideaki Kobayashi, Takayuki Matsunuma, Takahiro Inoue, Norihiko Iki, Akihiro HayakawaAbstract:Abstract For the first time, NH 3 –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 (AIST), Japan. Based on the global demand for carbon-free power generation as well as recent advances involving Gas-turbine technologies, such as heat-regenerative cycles, rapid fuel mixing using strong swirling flows, and NO x reduction using selective catalytic reduction (SCR), allow us to realize NH 3 –air Combustion Gas-turbine system, which was abandoned in the 1960′s. In the present system, the combustor adopted Gaseous NH 3 fuel and diffusion Combustion to enhance flame stability. The NH 3 pre-cracking apparatus for Combustion enhancement using generated H 2 was not employed. The NH 3 –air Combustion Gas-turbine power generation system can be operated over a wide range of power and rotational speeds, i.e., 18.4 kW to 44.4 kW and 70,000 rpm to 80,000 rpm, respectively. The Combustion efficiency of the NH 3 –air Gas turbine ranged from 89% to 96% at 80,000 rpm. The emission of NO and unburnt NH 3 depends on the combustor inlet temperature. Emission data indicates that there are NH 3 fuel-rich and fuel-lean regions in the primary Combustion zone. It is presumed that unburnt NH 3 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 NH 3 is expected to react with NO through selective non-catalytic reduction (SNCR). NH 3 CH 4 –air Combustion operation tests were also performed and the results show that the increase of the NH 3 fuel ratio significantly increases the NO emission, whereas it decreases the NO conversion ratio. To achieve low NO x Combustion in NH 3 –air Combustion Gas turbines, it is suggested to burn large quantities of NH 3 fuel and produce both rich and lean fuel mixtures in the primary Combustion zone.
Norihide Egami - One of the best experts on this subject based on the ideXlab platform.
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development of carbon dioxide removal system from the flue Gas of coal fired power plant
Energy Procedia, 2009Co-Authors: Yukio Ohashi, Takashi Ogawa, Norihide EgamiAbstract:Abstract A quarter of the carbon dioxide emissions all over the world are exhausted from the thermal power plants. So we hav e been concentrated on the development of the low-cost CO2 capture technology. For the CO2 capture from the large amount of the flue Gas, the chemical absorption method is suitable. We found an amine solvent had a good performance using thermodynamic simulation. The solvent exhibited that the CO2 recovery ratio and heat consumption for CO2 regeneration were 94% and 2.9 GJ/t-CO2 by the bench-scale test, respectively. Furthermore we will plan a 10 ton-CO2/day pilot plant using a real coal Combustion Gas.
Edward J. Anthony - One of the best experts on this subject based on the ideXlab platform.
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emissions of so2 and nox during oxy fuel cfb Combustion tests in a mini circulating fluidized bed Combustion reactor
Energy & Fuels, 2010Co-Authors: L Jia, Edward J. AnthonyAbstract:Anthropogenic CO2 production is primarily driven by fossil fuel Combustion, and the current energy demand situation gives no indication that this will change in the near future. In consequence, it is increasingly necessary to find ways to reduce these emissions when fossil fuel is used. CO2 capture and storage (CCS) appears to be among the most promising approaches. All of the CCS technologies involve producing a nearly pure stream of CO2, either by concentrating it in some manner from the flue Gases or by using pure oxygen as the Combustion Gas. The latter option, oxy−fuel Combustion, has now been well studied for pulverized coal Combustion, but to date has received relatively little attention in the case of oxy−fuel circulating fluidized bed Combustion (CFBC). Recently, oxy−fuel FBC has been examined in a 100 kW pilot plant operating with flue Gas recycle at CanmetEnergy. The results strongly support the view that this technology offers all of the advantages of air-fired FBC, with one possible exception...
Taku Tsujimura - One of the best experts on this subject based on the ideXlab platform.
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performances and emission characteristics of nh3 air and nh3ch4 air Combustion Gas turbine power generations
Proceedings of the Combustion Institute, 2017Co-Authors: Osamu Kurata, Taku Tsujimura, Hirohide Furutani, Hideaki Kobayashi, Takayuki Matsunuma, Takahiro Inoue, Akihiro HayakawaAbstract:Abstract For the first time, NH 3 –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 (AIST), Japan. Based on the global demand for carbon-free power generation as well as recent advances involving Gas-turbine technologies, such as heat-regenerative cycles, rapid fuel mixing using strong swirling flows, and NO x reduction using selective catalytic reduction (SCR), allow us to realize NH 3 –air Combustion Gas-turbine system, which was abandoned in the 1960′s. In the present system, the combustor adopted Gaseous NH 3 fuel and diffusion Combustion to enhance flame stability. The NH 3 pre-cracking apparatus for Combustion enhancement using generated H 2 was not employed. The NH 3 –air Combustion Gas-turbine power generation system can be operated over a wide range of power and rotational speeds, i.e., 18.4 kW to 44.4 kW and 70,000 rpm to 80,000 rpm, respectively. The Combustion efficiency of the NH 3 –air Gas turbine ranged from 89% to 96% at 80,000 rpm. The emission of NO and unburnt NH 3 depends on the combustor inlet temperature. Emission data indicates that there are NH 3 fuel-rich and fuel-lean regions in the primary Combustion zone. It is presumed that unburnt NH 3 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 NH 3 is expected to react with NO through selective non-catalytic reduction (SNCR). NH 3 CH 4 –air Combustion operation tests were also performed and the results show that the increase of the NH 3 fuel ratio significantly increases the NO emission, whereas it decreases the NO conversion ratio. To achieve low NO x Combustion in NH 3 –air Combustion Gas turbines, it is suggested to burn large quantities of NH 3 fuel and produce both rich and lean fuel mixtures in the primary Combustion zone.
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performances and emission characteristics of nh3 air and nh3ch4 air Combustion Gas turbine power generations
Proceedings of the Combustion Institute, 2017Co-Authors: Osamu Kurata, Taku Tsujimura, Hirohide Furutani, Hideaki Kobayashi, Takayuki Matsunuma, Takahiro Inoue, Norihiko Iki, Akihiro HayakawaAbstract:Abstract For the first time, NH 3 –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 (AIST), Japan. Based on the global demand for carbon-free power generation as well as recent advances involving Gas-turbine technologies, such as heat-regenerative cycles, rapid fuel mixing using strong swirling flows, and NO x reduction using selective catalytic reduction (SCR), allow us to realize NH 3 –air Combustion Gas-turbine system, which was abandoned in the 1960′s. In the present system, the combustor adopted Gaseous NH 3 fuel and diffusion Combustion to enhance flame stability. The NH 3 pre-cracking apparatus for Combustion enhancement using generated H 2 was not employed. The NH 3 –air Combustion Gas-turbine power generation system can be operated over a wide range of power and rotational speeds, i.e., 18.4 kW to 44.4 kW and 70,000 rpm to 80,000 rpm, respectively. The Combustion efficiency of the NH 3 –air Gas turbine ranged from 89% to 96% at 80,000 rpm. The emission of NO and unburnt NH 3 depends on the combustor inlet temperature. Emission data indicates that there are NH 3 fuel-rich and fuel-lean regions in the primary Combustion zone. It is presumed that unburnt NH 3 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 NH 3 is expected to react with NO through selective non-catalytic reduction (SNCR). NH 3 CH 4 –air Combustion operation tests were also performed and the results show that the increase of the NH 3 fuel ratio significantly increases the NO emission, whereas it decreases the NO conversion ratio. To achieve low NO x Combustion in NH 3 –air Combustion Gas turbines, it is suggested to burn large quantities of NH 3 fuel and produce both rich and lean fuel mixtures in the primary Combustion zone.