Faculty Profiles - NARUSE Ichiro

Papers - NARUSE Ichiro

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Heating technique of slag-tapping hole in high-temperature coal gasifier Reviewed

Takuya Ishiga,Fumihiko Kiso,Akinori Suetsugu,Masakazu Utano, Hiroshi Yamashita, Yasuaki Ueki, Ryo Yoshiie, Ichiro Naruse

, Fuel Processing Technology Vol. 138 page： 100-108 2015.10

微粉炭燃焼ボイラー内における灰挙動の解明 Reviewed

成瀬一郎，義家亮，植木保昭，佐藤直樹

ボイラ研究 ( 393 ) page： 27-33 2015.10

Heating technique of slag-tapping hole in high-temperature coal gasifier Reviewed

Takuya Ishiga, Fumihiko Kiso, Akinori Suetsugu, Masakazu Utano, Hiroshi Yamashita, Yasuaki Ueki, Ryo Yoshiie, Ichiro Naruse

, Fuel Processing Technology Vol. 138 page： 100-108 2015.10

Heating technique of slag-tapping hole in high-temperature coal gasifier

Ishiga Takuya, Kiso Fumihiko, Suetsugu Akinori, Utano Masakazu, Yamashita Hiroshi, Ueki Yasuaki, Yoshiie Ryo, Naruse Ichiro

FUEL PROCESSING TECHNOLOGY Vol. 138 page： 100 - 108 2015.10

微粉炭燃焼ボイラー内における灰挙動の解明 Reviewed

成瀬一郎, 義家亮, 植木保昭, 佐藤直樹

ボイラ研究 ( 393 ) page： 27-33 2015.10

Effects of flue gas re-circulation and nitrogen contents in coal on NOX emissions under oxy-fuel coal combustion

Yoshiie Ryo, Hikosaka Naoki, Nunome Yoko, Ueki Yasuaki, Naruse Ichiro

FUEL PROCESSING TECHNOLOGY Vol. 136 page： 106 - 111 2015.8

Growth and gravity shedding of ash deposition layer in pulverized coal combustors

Sato Naoki, Priyanto Dedy Eka, Ueno Shunichiro, Matsuzawa Yoshiaki, Ueki Yasuaki, Yoshiie Ryo, Naruse Ichiro

FUEL PROCESSING TECHNOLOGY Vol. 134 page： 1 - 10 2015.6

Growth and gravity shedding of ash deposition layer in pulverized Reviewed

Naoki Sato, Dedy Eka Priyanto, Shunichiro Ueno, YoshiakiMatsuzawa, Yasuaki Ueki, Ryo Yoshiie , Ichiro Naruse

coal combustors Fuel Processing Technology Vol. 134 page： 1-10 2015

Effects of flue gas re-circulation and nitrogen contents in coal on NOX emissions under oxy-fuel coal combustion Reviewed

Ryo Yoshiie , Naoki Hikosaka , Yoko Nunome , Yasuaki Ueki , Ichiro Naruse

Fuel Processing Technology Vol. 136 page： 106-111 2015

Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration Reviewed

Hongyun Hu, Zhang Xu, Huan Lin, Dunkui Chen, Aijun Li, Hong Yao, Ichiro Naruse

Proceedings of the Combustion Institute Vol. 35 page： 2397-2403 2015

213 Tar generation behaviors in waste plastic gasification with steam

YOSHIIE Ryo, SUZUKI Toshiya, UEKI Yasuaki, NARUSE Ichiro

The Proceedings of Conference of Tokai Branch Vol. 2015 ( 0 ) page： _213 - 1_-_213-2_ 2015

3-1-4 Gasification Behavior and tar reduction in Packed-bed Biomass Gasifier

YAMADA Atsushi, YOSHIIE Ryo, UEKI Yasuaki, Naruse Ichiro

Proceedings of the Annual Conference of The Japan Institute of Energy Vol. 24 ( 0 ) page： 70 - 71 2015

Publishing type：Research paper (scientific journal) Publisher：The Japan Institute of Energy

The purpose of this study is the gasification behavior of biomass in the packed-bed, carrying out gasification experiment (updraft and downdraft gasification). In this study, pellets of black pine (φ6.5 mm × 8.5 mm) were fed intermittently and using air as the gasification agent. In the gasification tests, the temperature distribution and the gas compositions in the gasifier were measured during gasification, and the amount of tar in the gasified gas was measured. In addition, the steam was injected in the gasifier in order to reduce the amount of tar.

DOI： 10.20550/jietaikaiyoushi.24.0_70

5-2-4 Ash Deposition Behavior at blended coal combustion in Pulverized Coal Combustion Boiler

NARUKAWA Kimihito, INAGAKI Hironobu, AZUMA Yuichi, NUNOME Yoko, UEKI Yasuaki, YOSHIIE Ryo, NARUSE Ichiro

Proceedings of the Annual Conference of The Japan Institute of Energy Vol. 24 ( 0 ) page： 192 - 193 2015

Publishing type：Research paper (scientific journal) Publisher：The Japan Institute of Energy

In order to use the low-grade coals which are out of the power station requirement, blending of high-grade coals have been carried out in pulverized coal power station. However, for ash adhesion such as slagging and fouling, which is one of the important evaluation items of the coal, improvement of coal characteristics by the blending of coal does not become clear. It is necessary to establish the ash adhesion evaluation technology on the blending of the coal to reduce the cost of generation and increase availability of coal because most of low-grade coals are low ash fusion temperature. The purpose of this work is elucidation of ash deposition behavior at blended coal combustion. Ash deposits were collected on a heat transfer tube with an ash deposit experiment at some blend condition. In addition, we calculated the molten fraction of each blending condition by chemical equilibrium theory, using FactSage Ver.6.3.1 software.

DOI： 10.20550/jietaikaiyoushi.24.0_192

Combustion Behavior of Pulverized Coal and Ash Particle Properties during Combustion

Ueki Yasuaki, Yoshiie Ryo, Naruse Ichiro

ISIJ INTERNATIONAL Vol. 55 ( 6 ) page： 1305 - 1312 2015

Publishing type：Research paper (scientific journal) Publisher：一般社団法人日本鉄鋼協会

CO<sub>2</sub> emissions from blast furnaces should be reduced to curtail the impact of global warming. A promising solution is the low reducing agent rate (RAR) operation of blast furnaces. Char and ash particles derived from pulverized coal affect permeability in the furnace during low RAR operation. In our study, the combustion behavior and ash particle properties of pulverized coal during combustion were investigated. Char particles formed during combustion were sampled using a drop tube furnace, and then analyzed for their combustion ratio and ash particle properties. As a result, the combustion behavior of pulverized coal and properties of ash particles in raw coal were different by a coal type. Moreover, the combustibility of pulverized coal and the variation in ash particle properties during combustion were affected by the structure of the char particles.

DOI： 10.2355/isijinternational.55.1305

Web of Science

Scopus

Effects of flue gas re-circulation and nitrogen contents in coal on NOX emissions under oxy-fuel coal combustion Reviewed

Ryo Yoshiie, Naoki Hikosaka, Yoko Nunome, Yasuaki Ueki, Ichiro Naruse

Fuel Processing Technology Vol. 136 page： 106-111 2015

Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration

Hu Hongyun, Xu Zhang, Liu Huan, Chen Dunkui, Li Aijun, Yao Hong, Naruse Ichiro

PROCEEDINGS OF THE COMBUSTION INSTITUTE Vol. 35 ( 2 ) page： 2397 - 2403 2015

Mechanism of chromium oxidation by alkali and alkaline earth metals during municipal solid waste incineration Reviewed

Hongyun Hu, Zhang Xu, Huan Lin, Dunkui Chen, Aijun Li, Hong Yao, Ichiro Naruse

Proceedings of the Combustion Institute Vol. 35 page： 2397-2403 2015

Growth and gravity shedding of ash deposition layer in pulverized Reviewed

Naoki Sato, Dedy Eka Priyanto, Shunichiro Ueno, YoshiakiMatsuzawa, Yasuaki Ueki, Ryo Yoshiie, Ichiro Naruse

coal combustors Fuel Processing Technology Vol. 134 page： 1-10 2015

No.26 Evaluation of corrosion resistance and ash deposition of thermal spraying materials to reduce ash deposition for biomass waste incinerator

SASAKI Yoriaki, NAGANUMA Hiroshi, NOGUCHI Manabu, CHO Hiromitsu, NINOMIYA Yoshihiko, CHEN Juan, NARUSE Ichiro, YOSHIIE Ryo, UEKI Yasuaki

Proceedings of Conference on Coal Science Vol. 52 ( 0 ) page： 52 - 53 2015

Publishing type：Research paper (scientific journal) Publisher：The Japan Institute of Energy

Some ash particles of biomass fuels adhere to heat exchanger tube surfaces, which causes some troubles such as heat transfer inhibition, operational problems and hot corrosion in incineration plants. In this study, the authors have developed a surface treatment technology of tubes via a thermal spraying technology and a corrosion-resistant coating to reduce the ash deposition and the hot corrosion. Both the results of 'High-temperature Corrosion Test' and 'Electrochemical Impedance Spectroscopy (EIS)' are exhibited in this paper. The major conclusions are drawn as follows: Polarization conductance of specimens can be evaluated by means of equivalent circuits which are assumed on the interface between specimens and simulated ash. Moreover, it is clear that EIS is available for evaluating the corrosion resistance.

DOI： 10.20550/jiesekitanronbun.52.0_52

No.50 Elucidation of oxygen adsorption properties of coal

ONDA Masaomi, UEKI Yasuaki, YOSHIIE Ryo, NARUSE Ichiro, HASEGAWA Masakazu, HATTORI Masanori, INAGAKI Hironobu

Proceedings of Conference on Coal Science Vol. 52 ( 0 ) page： 100 - 101 2015

Publishing type：Research paper (scientific journal) Publisher：The Japan Institute of Energy

Coal has better stability of price and supply compared to other fossil fuels. In particular, subbituminous coal is expected effective utilization because that has low cost and long minable years. However, subbituminous coal has the self-ignition risk that caused by reacting with oxygen in the air. Therefore, an objective of this study is the elucidation of oxygen adsorption properties of coal. Experimental samples are some kinds of the subbituminous coal and bituminous coal. In the oxygen adsorption experiments between 356K and 476K in 50%N_2-50%O_2 atmosphere, the amount of oxygen adsorption on the coal was determined by thermobalance. As a result, it is found that the oxygen adsorption amount of bituminous coal is larger than those of subbituminous coal and oxygen adsorption amount is correlated with the carbon content of the coal.

DOI： 10.20550/jiesekitanronbun.52.0_100

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