担当区分：責任著者   記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：American Society of Civil Engineers (ASCE)  

DOI： 10.1061/(ASCE)EY.1943-7897.0000712

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掲載種別：研究論文（学術雑誌）   出版者・発行元：Society of Chemical Engineers, Japan  

DOI： 10.1252/kakoronbunshu.46.200

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掲載種別：研究論文（学術雑誌）   出版者・発行元：Society of Chemical Engineers, Japan  

DOI： 10.1252/kakoronbunshu.46.176

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掲載種別：研究論文（学術雑誌）   出版者・発行元：Society of Chemical Engineers, Japan  

DOI： 10.1252/kakoronbunshu.46.84

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Society of Chemical Engineers, Japan  

DOI： 10.1252/kakoronbunshu.46.1

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

ガスがすべて固体層を通過する良好な気固接触を維持しながら、軸周りの回転運動で粒子を輸送する気固接触装置として、コイル状らせん構造をもつ装置を提案した。コールドモデルを用いて、粒子輸送速度並びに粒子輸送時の逆混合を実験的に評価し、粒子滞留時間分布を推定した。

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記述言語：日本語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Society of Chemical Engineers, Japan  

DOI： 10.1252/kakoronbunshu.45.197

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.fuproc.2018.03.010

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.joei.2016.12.002

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.3775/jie.96.228

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1252/jcej.14we261

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1252/jcej.14we278

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japan Institute of Energy  

DOI： 10.3775/jie.95.1115

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.joei.2014.08.001

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.seppur.2015.04.029

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記述言語：英語   出版者・発行元：一般社団法人日本エネルギー学会  

In this paper, the gasification of the coal char that catalyzed by alkaline and alkaline earth metals (AAEMs) in the ash was studied. Two catalytic including calcium (Ca) and potassium (K) were used in the CO_2 gasification of Loy Yang brown coal (LY). The char conversion with the additional of CaO and K_2O at the temperature between 650 to 800℃ were investigated utilizing Thermogravimetric analyzer (TGA). It was found that the char conversion has increased by increasing the gasification temperature. Moreover, the efficiency of char conversion and gasification rate using CaO and K_2O catalytic has significantly improved in CO_2 catalytic gasification.

DOI： 10.20550/jietaikaiyoushi.24.0_76

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Japan Institute of Energy  

DOI： 10.3775/jie.94.841

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.2141/jpsa.0130184

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.fuel.2013.06.017

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.fuel.2013.12.060

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記述言語：日本語   出版者・発行元：一般社団法人日本エネルギー学会  

In late years, the consumptions of the fossil fuel are rapidly increased. As the results, the Global warming by increasing in carbon dioxide and lack of the fossil fuel are concerted. We could reduce consumptions of the fossil fuel by using the biomass as new energy. Mushroom bed is agricultural biomass of culture medium. In Niigata area, it is produced 20,000 tons in every year. However the mushroom bed has a problem with very high water content. Therefore we developed the economic drying processes for using energy source. The compressing method is economic process better than thermal drying method.

DOI： 10.20550/jiesekitanronbun.51.0_100

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.biombioe.2013.05.028

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DOI： 10.1016/j.fuel.2010.08.015

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.fuel.2011.06.077

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

DOI： 10.4028/www.scientific.net/AMR.608-609.201

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.ijhydene.2012.05.133

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記述言語：英語   掲載種別：研究論文（国際会議プロシーディングス）  

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.biombioe.2010.05.001

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.fuproc.2009.08.009

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1016/j.fuproc.2009.08.003

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1252/jcej.09We195

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

DOI： 10.1252/jcej.08we186

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出版者・発行元：公益社団法人 化学工学会  

DOI： 10.11491/scej.2007.0.157.0

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記述言語：日本語   出版者・発行元：公益社団法人 化学工学会  

DOI： 10.11491/scej.2007.0.154.0

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

<p>Reaction pathways of NOx and N2O in Calcium-Looping CO<sub>2</sub> capture process were investigated by use of a two-stage fluidized bed system. Calcined limestone particles were employed as the bed material. Simulated flue gas containing CO<sub>2</sub>, NO, and N<sub>2</sub>O was fed to the carbonator,. During CO<sub>2</sub> capture in the carbonator by CaO particles, a part of N<sub>2</sub>O was decomposed in the carbonator. In addition, a part of NO fed to the carbonator was adsorbed by CaO particles, then the adsorbed NO was transported to the regenerator and released to the gas phase at high temperatures.</p>

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

<p>In this study, pyrolysis characterization of peat and mushroom culture waste were investigated. The composite of the pyrolysis gas (volatile material) and char for each reaction temperature were investigated by using fixed bed reactor. As a result, in the case of peat, generation rate of volatile material was increased with increasing temperature and the ratios of monoxide and dioxide are higher than other components. Also, the ratio of hydrogen was increased with increasing reaction temperature. Biomass shows the similar behavior such as peat, however total generation amount was slightly more than peat. In the case of peat-char, C ratio was increased and H ratio was decrease with increasing the temperature. These result showed that dehydrogenation and carbonization had a relationship and progressed with increasing pyrolysis temperature. In the case of biomass, similar result was shown.</p>

DOI： 10.20550/jiebiomassronbun.12.0_95

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

For Studying Gasification characteristic of the mushroom culture waste and Brown coal, We investigated pyrolysis behavior of the mushroom culture waste and Brown coal. As a result, in all samples CO_2 ratio of gas generation decreased with increasing temperature. H_2 generation of Brown coal is little (less than 1%) from 400℃ to 500℃. And then, it increased rapidly from 600℃ to 800℃. However, H_2 generation of mushroom culture waste is increased from 400℃ to 800℃. About the mixture of the mushroom culture waste (5%) and Brown coal, H_2 generation is increased with temperature. The ratio is 41% at 800℃.

DOI： 10.20550/jiebiomassronbun.11.0_63

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

Price of high grade coal is rising with increasing the consumption of low grade coal. Furthermore, biomass use has become important because of depletion of fossil fuel and global warming issues. Biomass have problems such as low melting points of ash. In boiler, performance of heat transfer tube is decreased and surface of metal tube is corroded. In this study, we examined the melting characteristics of the peat ash and mushroom agriculture waste ash. As a results, weight of ash was decreased with increasing temperature. The melting points of peat ash is 1200℃ and biomass ash is 1300 ℃.

DOI： 10.20550/jiebiomassronbun.11.0_61

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, the pyrolysis of biomass and brown-coal have been studied in artificial sunlight heat fluidized bed. The property of the heated treated biomass and brown-coal were investigated. As a result, in the case of biomass, C ratio was increased with treating temperature increasing. The HHV has been taken the maximum value,5500kcal/kg, at 500℃.In the case of brown-coal, C ratio was increased with treating temperature increasing. The HHV has been taken about 7000 kcal/kg between 500℃ to 700℃. However, the C ratio and HHV are decreased between 700℃ to 800℃.

DOI： 10.20550/jiebiomassronbun.11.0_51

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

Enokitake (Flammulina velutipes) is one of the most popular cultivated mushrooms in Japan. A huge amount of waste culture is disposed thus its utilization as biomass fuel is needed. In addition, the ash can be used as fertilizer because the waste culture contains plant nutrients (P, K, Mg and Si). Due to high moisture content of waste mushroom culture, however, drying is necessary prior to use. As an approach for drying, compositing was conducted. The waste culture after drying was burned in a semi-pilot scale combustor with a combustor volume of 535 L. Reduction of NOx emissions by urea solution injection and SO_2 capture by Ca(OH)_2 powder injection were attempted. The ash was analyzed to determine contents of plant nutrients. Though the content of silica was high, the contents of water-soluble and citric-acid-soluble components were low. The treatment at high temperatures is considered to decrease the solubility of silica. Heavy metal contents were sufficiently lower than the acceptable level for the case of sludge fertilizer.

DOI： 10.20550/jiebiomassronbun.11.0_45

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

<p>Decomposition of nitrous oxide (N<sub>2</sub>O) was conducted under a condition of carbonator of Calcium-Looping process for CO<sub>2</sub> separation. Absorbent (CaO) catalyzed decomposition of N<sub>2</sub>O at 873 K and its rate was as fast as the rate of CO<sub>2</sub> capture. With the presence of CO<sub>2</sub>, CaO gradually lost activities for CO<sub>2</sub> capture and N<sub>2</sub>O decomposition, thus CaCO<sub>3</sub> was found to be ineffective for N<sub>2</sub>O decomposition. The present results imply that Calcium-Looping process is effective for mitigation of greenhouse gas emissions not only by CO<sub>2</sub> capture but also N<sub>2</sub>O reduction.</p>

DOI： 10.20550/jietaikaiyoushi.25.0_180

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記述言語：英語   出版者・発行元：一般社団法人 日本エネルギー学会  

A natural limonite ore is used as catalyst for tar reforming at 650 ℃. Researches on the catalytic role of the limonite ore, deactivation mechanism, influence of steam addition were conducted. The characteristics of the catalyst were analysed by X-ray diffraction (XRD) and scanning electron microscope (SEM). Effects of steam addition and the steam/carbon ratio on catalyst activity and lifetime were discussed.

DOI： 10.20550/jiebiomassronbun.11.0_67

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記述言語：日本語   出版者・発行元：一般社団法人 日本機械学会  

Recently, the consumptions of the fossil fuel are rapidly increased because of increasing population and economic growth in developing country. As the results, the Global warming by increasing in carbon dioxide and lack of the fossil fuel are concerned. We must do developing the new fossil fuel such as peat or brown coal. However, the peat or brown-coal had a problem with very high water content. Therefore we developed the economic drying processes for using peat as energy source. We studied the comparing a squeeze method (compression-dewatering method) and thermal drying method. From the results, we found that the squeeze method is economic process better than thermal drying method.

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記述言語：日本語   出版者・発行元：公益社団法人 日本工学教育協会  

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, we investigated the influences of carbon residue content in coal ash and coal char on the melting behaviors. The coal ashes and coal chars with different carbon content were prepared by the air oxidations of a coal char with different oxidation time. The melting behaviors of the prepared samples were evaluated by the shape changes during heat-treatment up to 1550℃ in a N_2 stream based on JIS M 8801. The results indicated the melting behavior strongly depended on the amount of residual carbon content; melting points increased with increasing the residual carbon content.

DOI： 10.20550/jiesekitanronbun.52.0_8

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In a biomass gasification process, the separation of tar is brought into question to cause piping obstruction. Various catalysts are reported in tar reforming, but most of them are expensive, and difficult to be used in practice. Limonite is a cheap, natural mineral, which is reported to have high tar resolution performance. Basing on this, the low temperature operation for tar reforming could contribute to improvement of cold gas efficiency and the cost reduction. The biomass gasification was carried out in a fixed bed reactor at 400-700 ℃. As results, limonite improved the biomass tar gasification, and the gas yields increased notably with the temperature increasing. The hydrocarbons gasification was confirmed even at the low temperature of 400℃, there the hydrogen formation was observed.

DOI： 10.20550/jiebiomassronbun.10.0_89

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

Enokitake (Flammulina velutipes) is one of the most popular cultivated mushrooms in Japan. A huge amount of waste culture is disposed thus its utilization as biomass fuel is needed. Due to high moisture content of waste mushroom culture, drying is necessary prior to use. As an approach for drying, compositing is proposed. Composters of various scale, from laboratory scale composter to semi-pilot scale composter (3 m^3 by volume) were operated. Temperature was measured during composting. A mathematical model is also proposed to predict the change in temperature.

DOI： 10.20550/jietaikaiyoushi.23.0_158

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

Nickel-based catalyst is known to be active on biomass tar reforming. However, nickel-based catalyst was found to be deactivated by coke fouling on the catalyst surface. Calcined dolomite is a low price natural mineral. It was found to be effective on coking resistance during tar steam reforming. In this study, light fuel gases were produced from biomass tar gasification using calcined dolomite and nickel-based catalyst. Catalytic gasification was performed in a fixed bed reactor at 650℃. Calcined dolomite was filled over nickel-based catalyst. As a result, coke deposits decreased compared to the case with nickel catalyst only.

DOI： 10.20550/jiesekitanronbun.51.0_90

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, the effect of temperature is investigated in the vapor carbonization. When vapor is added, the amount of volatile material is increased comparing with only nitrogen.

DOI： 10.20550/jietaikaiyoushi.22.0_114

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, the melting and evaporating characteristics of the brown-coal and biomass ash were invested. With increasing temperature, evaporating amount of ash was decreased to the all sample. The melting points of brown-coal and biomass ash are 1300℃ and subbituminous coal ash is 1600 ℃.

DOI： 10.20550/jietaikaiyoushi.22.0_18

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, we controlled the emission concentration of the exhaust gas when brown-coal is burned in a fluidized bed. We compared the case of supplying the secondary air or not based on the primary air. As the results, we got that emission concentration of NOx and CO is decreased when secondary air is injected.

DOI： 10.20550/jietaikaiyoushi.22.0_218

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, the combustion and pyrolysis of brown coal have been done. Combustion/pyrolysis rate had been investigated. As the result, the pyrolytic mass change varies according to the temperature in the furnace. The pyrolytic activation energy is divided into two stages. The activation energy is for 300〜400and 400〜800℃ are 5.2 and 39.8kJ/mol , respectively.

DOI： 10.20550/jiesekitanronbun.49.0_38

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, light gases were produced from biomass tar gasification by using iron-based catalysts. Catalytic gasification was performed in a fixed bed reactor at 550 to 800℃. Hydrogen yield increased with temperature increasing from 550 to 600℃, but it decreased over 600℃. The tar decomposition was further improved with K_2CO_3 addition, which however gave little effect on the coke deposition at the present conditions.

DOI： 10.20550/jietaikaiyoushi.21.0_88

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

Enokitake (Flammulina velutipes) is one of the most popular cultivated mushrooms in Japan. A huge amount of waste culture is disposed thus its utilization as biomass fuel is needed. Due to high moisture content of waste mushroom culture, drying is necessary prior to use. As an approach for drying, compositing is proposed. A laboratory scale composter is operated. Change in temperature, CO_2 formation, and water evaporation with time was measured during composting. A mathematical model is also proposed to predict the change in temperature and moisture evaporation.

DOI： 10.20550/jiesekitanronbun.49.0_88

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, melting behavior of the brown-coal ash and biomass ash were studied. Mass change of ash with increasing temperature was measured and melting characteristics were observed. As the results, we obtained evaporation rate of ash and melting points. The melting point of biomass ash is 1200℃ and subbituminous coal ash is 1600℃.

DOI： 10.20550/jietaikaiyoushi.21.0_260

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出版者・発行元：一般社団法人 廃棄物資源循環学会  

現在、キノコ廃菌床は農林系廃棄物として廃棄されている。廃棄物として扱われているこのキノコ廃菌床をバイオエネルギー資源として利用可能であれば、キノコ産業にとっては廃棄処理費用の節約と工場内エネルギー使用量の削減を同時に達成できる。廃菌床を経済性あるエネルギー源にするためには、低コストで含水率を下げる必要がある。キノコ廃菌床の脱水特性を明らかにすることができれば、エネルギーとして利用する際の費用削減や装置の設計に貢献できると考えられる。廃菌床の含水率を下げる方法として、一般的に自然乾燥法、機械的脱水法、熱乾燥法がある。しかし、自然乾燥法は最も低コストに乾燥できる方法であるが、乾燥時間が長いこと、周辺への悪臭問題、季節依存性等の問題点がある。そこで、本研究では、低コスト乾燥方法として機械的脱水法と熱乾燥法を組み合わせることに着目し、圧搾による脱水特性と熱乾燥による乾燥特性に関する実験を行った。

DOI： 10.14912/jsmcwm.23.0_321

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, the drying of sewage sludge has been done by the mechanical compressing method and the thermal drying method. The mechanical compressing method has a higher efficiency than thermal method from 100% to 50% in the water content. However the thermal drying has higher efficiency than the mechanical method in below 50%. In thermal drying, drying mechanism had been changed at 373K. The activation energy is 27kJ/mol in the range 323-373 K and 16kJ/mol in the range 373-574K.

DOI： 10.20550/jietaikaiyoushi.20.0_324

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, light gases were produced from biomass tar gasification by using limonite and dolomite, as catalysts. Catalytic gasification was performed in a fixed bed reactor at 600-800℃. Hydrogen yield was increased with temperature increasing among 650-800℃, because the water shift reaction was promoted by catalyst. Hydrogen gas doubled its yield under the limonite and dolomite mixture compared to limonite only.

DOI： 10.20550/jietaikaiyoushi.20.0_66

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, the combustion and pyrolosis of brown coals and mushroom waste have been done. Combustion/ pyrolysis rate and emission of hydrocarbon component had been investigated. As the results, activation energy is 900 in char combustion step and in volatile combustion step. The emission amount of hydrocarbon components were increased with decreasing oxygen concentration and increasing furnace temperature.

DOI： 10.20550/jietaikaiyoushi.20.0_6

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記述言語：日本語   出版者・発行元：公益社団法人 日本工学教育協会  

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J-GLOBAL

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

Carbon deposition behavior and gasification activity of a Ni-Mg/Al_2O_3 catalyst was investigated. The onset of carbon deposition was shifted to higher temperature compared to a conventional Ni/Al_2O_3 catalyst, which meant no deposition occurred in the targeted temperature region. The gasification activity of swine excrement compost was almost the same as the conventional catalyst.

DOI： 10.20550/jietaikaiyoushi.19.0_86

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出版者・発行元：公益社団法人 化学工学会  

DOI： 10.11491/scej.2009f.0.897.0

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出版者・発行元：公益社団法人 化学工学会  

DOI： 10.11491/scej.2009f.0.896.0

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記述言語：英語  

DOI： 10.1252/jcej.08we047

Web of Science

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In the present study, suppression of carbon deposition onto Ni/Al_2O_3 catalysts were investigated by means of addition of co-catalyst Mg. Particularly, the order of the addition of catalytic constituents, Ni and Mg, were studied.

DOI： 10.20550/jiesekitanronbun.45.0_50

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記述言語：英語   出版者・発行元：一般社団法人 日本エネルギー学会  

Low-temperature catalytic gasification for swine compost is developed. The catalytic gasification was conducted in a two-stage quartz fixed bed. Ni loading brown coal (Ni-LY) was prepared and employed as a catalyst for livestock compost tar gasification. The results show that the Ni-LY performed high activity on the swine compost tar decomposition. Light product gases were gained at catalytic temperatures of 450, 550 and 650℃. Steam gasification of the tar was catalyzed resulting in hydrogen gas yield increase by approximately 2 times.

DOI： 10.20550/jiebiomassronbun.3.0_52

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In the low-temperature biomass gasification, deactivation of the catalyst by carbon deposition is a serious problem due to the cost. In this study, we conducted a study on the carbon deposition onto Ni-supported coal catalyst from several model organic compounds to observe the difference in the carbon deposition behavior from that of a commercial Ni/Al_2O_3 catalyst.

DOI： 10.20550/jiesekitanronbun.45.0_70

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記述言語：英語  

DOI： 10.1016/j.fuel.2006.10.024

Scopus

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

Brown coal has many oxygen-containing functional groups such as carboxyl groups and it is ion-exchangeable with metal. We prepared Ni ion-exchanged brown coal with mixture of swine wastewater and waste liquid from electroless nickel plating, and examined the activity for tar decomposition.

DOI： 10.20550/jiesekitanronbun.44.0_34

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記述言語：日本語   出版者・発行元：公益社団法人 化学工学会  

DOI： 10.11491/scej.2007.0.155.0

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

DOI： 10.20550/jietaikaiyoushi.16.0_148

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In the low-temperature biomass gasification, deactivation of the catalyst by carbon deposition is a serious problem due to the cost. In this study, we conducted a study on the carbon deposition onto Ni/Al_2O_3 catalyst from C_6-hydrocarbon as model compound to observe the differences in the carbon deposition behavior and in the forms of the deposits.

DOI： 10.20550/jiesekitanronbun.44.0_94

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記述言語：英語  

DOI： 10.1252/jcej.39.461

Web of Science

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

Two kinds of biomass samples, chicken feces compost and cypress, were employed for pyrolysis in our study. Experiments were carried out in a two-stage fixed-bed reactor. The biomass sample was pyrolyzed in the first stage, and the biomass tar from biomass pyrolysis flowed into another stage with the feed gas for catalytic decomposition and steam-reforming. A Ni-loading brown coal and a commercial catalyst Ni/Al_2O_3 were used as catalysts. Both of the catalysts promoted the biomass tar complete conversion into gas products even at a low reaction temperature of 500℃. Comparing with the case of pyrolysis, yields of hydrogen and carbon monoxide gases showed a remarkable increase in the steam-reforming reactions.

DOI： 10.20550/jiesekitanronbun.43.0_67

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記述言語：英語   出版者・発行元：一般社団法人 日本エネルギー学会  

Catalytic behaviour of iron-based catalysts on hydropyrolysis of nascent coal tar was studied using a two-stage fixed-bed reactor in ambient pressure. An Indonesian natural limonite ore was mainly employed as a representative iron catalyst at a temperature from 873K to 1023K and in 50 vol. % hydrogen atmosphere. The limonite catalyst exhibited a great activity on coal volatile methanation that methane concentration in carbonaceous gas product was achieved higher than 60% in volume and tarry material was converted almost completely. Comparing with two other iron-containing catalysts, Fe/Al_2O_3 and bof dust, limonite with a high specific surface area showed a high catalytic activity on tarry material hydropyrolysis. The influence of sulphur poisoning on the limonite catalyst was small. Carbonaceous gas products obtained in a 2000ppm H_2S atmosphere with limonite were still up to twice the total gas yield and twice methane yield (in moles) of those without catalyst at 923K.

DOI： 10.20550/jiesekitanronbun.42.0_93

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

In this study, it was investigated to use of Ni ion-exchanged brown coal as a catalyst for efficient biomass gasification. Using Ni ion-exchanged brown coal, tarry material produced by pyrolysis of biomass was easily decomposed at relatively lower temperature like as 550 and 650C, and the product gas yields were increased.

DOI： 10.20550/jiesekitanronbun.41.0_119

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

The decomposition of tarry material included in COG to produce light gas was studied in this study. Ni/Al_2O_3, Fe (limonite) particle catalysts and Ni/Al_2O_3 honeycomb catalyst were employed. Catalyst bed temperature was controlled between 600℃ to 900℃. Although the activity of Fe catalyst was slightly weaker than that of Ni catalyst, tarry material completely converted into gaseous production under Fe catalyst. Both Ni and Fe catalyst had great activities on tarry material decomposition. Ni/Al_2O_3 honeycomb catalyst was as active as Ni/Al_2O_3 particle catalyst.

DOI： 10.20550/jiesekitanronbun.41.0_109

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記述言語：日本語   出版者・発行元：一般社団法人 日本エネルギー学会  

DOI： 10.20550/jietaikaiyoushi.12.0_68

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