Presentations -
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Preparation of humic acid from biomass and coals
Takahiro Kato, Shintaro Miura, Hirokazu Okawa, Katsuyasu Sugawara
The 9th International Conference on Sustainable Energy and Environment 2024.12 - 2024.12
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Recovery of Gold and Silver from E waste
Takahiro Kato, Kosuke Sakusabe, Hirokazu Okawa, Katsuyasu Sugawara
The 28th Regional Symposium on Chemical Engineering (RSCE) 2024.10 - 2024.10
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Regeneration and Recycling of Denitration Catalyst
Takahiro Kato, Kosuke Sakusabe, Hirokazu Okawa,Katsuyasu Sugawara
20th Asian Pacific Confederation of Chemical Engineering (APCChE) Congress 2023.09 - 2023.09
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Separation of bitumen from oil sand and oxidative desulfurization of bitumen using condensate and ultrasound at room temperature
Yoshitaka Wakisaka, Hirokazu Okawa, Takahiro Kato
20th Asian Pacific Confederation of Chemical Engineering (APCChE) Congress 2023.09 - 2023.09
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Evaluation of Mg-Al layered double hydroxide as adsorbent for arsenic removal in acidic solution and investigation of adsorbent reusability
Klarenz Hourani, Hirokazu Okawa, Takahiro Kato
20th Asian Pacific Confederation of Chemical Engineering (APCChE) Congress 2023.09 - 2023.09
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Chemical form changes of lead and sulfur in molten fly ash with addition of calcium compounds
Risehiro Nonaka, Takahiro Kato, Katsuyasu Sugawara
International Congress on Separation and Purification Technology (ISPT2022) (オンライン) 2022.12 - 2022.12
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Desulfurization of Subbituminous Coals by Liquid-Phase Oxidation
Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
8th International Conference on Sustainable Energy and Environment (SEE 2022) (Bangkok) 2022.11 - 2022.11
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Effect of Coal Type on Sulfur Forms of High-Rank Coals During Oxidation Using Performic Acid
Soshi Miyamoto, Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
8th International Conference on Sustainable Energy and Environment (SEE 2022) (Bangkok) 2022.11 - 2022.11
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Chemical Forms of Mercury in Desulfurization Gypsum and Fly Ash Produced from Coal-Fired Power Plant
Katsuyasu Sugawara, Kosuke Sakusabe, Takahiro Kato, Hirokazu Okawa
8th International Conference on Sustainable Energy and Environment (SEE 2022) (Bangkok) 2022.11 - 2022.11
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Development of metal recovery process by using chemical form changes
野中利瀬弘，加藤貴宏，菅原勝康
日本化学会東北支部 化学系学協会東北大会 (盛岡) 2022.09 - 2022.09
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石炭火力発電所にて生成した脱硫石膏に含まれる水銀の溶出挙動
Dorcas Linda Ernesto Uaciquete, Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
第58回石炭科学会議 2021.10 - 2021.10
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Preparation of aluminum nitride by nitridation of aluminum with ammonium chloride
Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara [Invited]
Asia Pacific Society for Materials Science Annual Meeting (APSR2021) ((Online)) 2021.08 - 2021.08 Asia Pacific Society for Materials Science
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石炭火力発電所由来フライアッシュ中の水銀の化学形態
D.L.E. Uaciquete， K. Sakusabe, T. Kato, H. Okawa, K. Sugawara
第57回石炭科学会議 (香川（オンライン）) 2020.10 - 2020.10 日本エネルギー学会
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Mercury Forms in Fly Ash and FGD Gypsum Produced from Coal Power Plants
Kosuke Sakusabe, Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
17th Interntional Conference on Coal Science & Technology (ICCS&T 2019) (Krakow,Poland) 2019.11 - 2019.11
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Removalof Arsenic from Spent Denitration Catalyst by Carbon Reduction
Takahiro Kato, Kosuke Sakusabe, Hirokazu Okawa, Katsuyasu Sugawara
17th International Conference on Coal Science & Technology (ICCS&T 2019) (Krakow, Poland) 2019.11 - 2019.11
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Regeneration of Spent Denitration Catalyst of Coal Fired Power Plant
Takahiro Kato, Kosuke Sakusabe, Yuuki Mochizuki, Hirokazu Okawa, Katsuyasu Sugawara
ACS Fall 2019 National Meeting & Exposition (San Diego) 2019.08 - 2019.08 American Chemical Society
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Preparation of activated carbon from coal waste for metals adsorption
UACIQUETE Dorcas L. E., KATO Takahiro, OKAWA Hirokazu, SUGAWARA Katsuyasu
日本エネルギー学会大会講演要旨集 2019.08 - 2019.08 一般社団法人 日本エネルギー学会
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Mercury Forms in FGD Gypsum Produced From Different FGD Systems
Kosuke Sakusabe, Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
ACS Fall 2019 National Meeting & Exposition (San Diego) 2019.08 - 2019.08 American Chemical Society
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Wet Chemical Preparation of Mono and Bimetallic Films of Copper and Nickel
Katsuyasu Sugawara, Takahiro Kato, Hirokazu Okawa, Hiroshi Sato
9th International Colloids Conference 2019.06 - 2019.06
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Preparation of Silver-coated Al-Si Particles by Polyol Method
Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
9th International Colloids Conference (Barcelona, Spain) 2019.06 - 2019.06
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Recoveryof Precious Metals from E-Waste By Chlorination and Capture with Carbon
Kosuke Sakusabe, Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
8th International Congress on Sustainability Science & Engineering (ICOSSE '19) (Kuala Lumpur) 2019.06 - 2019.06 The American Institute of Chemical Engineers (AIChE)
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Sulfur Distribution During Solvent Extraction of Coals
Katsuyasu Sugawara, Takahiro Kato, Hirokazu Okawa
7th International Conference on Sustainable Energy and Environment (Bangkok) 2018.11 - 2018.11
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Desulfurization of Coals by Liquid Phase Oxidation
Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
7th International Conference on Sustainable Energy and Environment (Bangkok) 2018.11 - 2018.11
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P04 Sonochemical synthesis of Au nanoparticles onto carbon coated cathode material and evaluation of its battery performance
Tanaka Yasuyuki, Okawa Hirokazu, Kato Takahiro, Sugawara Katsuyasu
Proceedings of the Annual Meeting of the Japan Society of Sonochemistry 2018.11 - 2018.11 Japan Society of Sonochemistry
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P19 Desorption of carbon dioxide from amine solution using ultrasound irradiation at low temperature
Ito Hiroyasu, Okawa Hirokazu, Kato Takahiro, Sugawara Katsuyasu
Proceedings of the Annual Meeting of the Japan Society of Sonochemistry 2018.11 - 2018.11 Japan Society of Sonochemistry
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Utilization of Activated Carbon Prepared from Mozambican Coal for Heavy Metals Adsorption
Dorcas L.E. Uaciquete, Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
第55回石炭科学会議 (北九州市) 2018.10 - 2018.10 日本エネルギー学会
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Regeneration of Spent Denitration Catalyst by Carbon Reduction
Takahiro Kato, Hirokazu Okawa, and Katsuyasu Sugawara
The 14th Japan-China Symposium on Coal and C1 Chemistry (Sapporo) 2018.09 - 2018.09
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Change of Sulfur Forms in Coals During Liquid Phase Oxidation
Takahiro Kato, Hirokazu Okawa, and Katsuyasu Sugawara
The 14th Japan-China Symposium on Coal and C1 Chemistry (Sapporo) 2018.09 - 2018.09
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超音波と電気化学反応を用いた亜ヒ酸の酸化
太田未也来，大川浩一，加藤貴宏，菅原勝康
平成30年度資源・素材関係学協会合同秋季大会 (福岡) 2018.09 - 2018.09 資源・素材学会
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テトラヒドロフランと超音波を用いたオイルサンドからのビチューメン分離回収過程における脱硫処理
大川浩一，赤沢伸幸，ワン モハマド イクワン ビン ワン カマル，加藤貴宏，菅原勝康
平成30年度資源・素材関係学協会合同秋季大会 (福岡) 2018.09 - 2018.09 資源・素材学会
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Regeneration of Spent Denitration Catalyst by Carbon Reduction
Takahiro Kato, Yukiko Sato, Hirokazu Okawa, Katsuyasu Sugawara
23rd International Congress of Chemical and Process Engineering (CHISA2018) 2018.08 - 2018.08
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Oxidative Desulfurization of Coals Using Hydrogen Peroxide
Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
23rd International Congress of Chemical and Process Engineering (CHISA2018) 2018.08 - 2018.08
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Selective Recovery of Gold from Secondary Resources
Katsuyasu Sugawara, Takahiro Kato, Hirokazu Okawa,
23rd International Congress of Chemical and Process Engineering (CHISA2018) 2018.08 - 2018.08
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Change of sulfur forms and desulfurization behavior in liquid phase oxidation of coals
Takahiro Kato, Yuki Nagai, Hirokazu, Okawa, Katsuyasu Sugawara
The 2nd Australia-Japan Symposium on Carbon Resource Utilization (Brisbane, Australia ) 2018.04 - 2018.04
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Recovery of rare metals from spent denitrification catalyst in coal-fired power plants
Kosuke Sakusabe , Takahiro Kato , Hirokazu Okawa and Katsuyasu Sugawara
The 2nd Australia-Japan Symposium on Carbon Resource Utilization (Brisbane, Australia) 2018.04 - 2018.04
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Arsenic Removal from Denitration Catalyst by Carbon Reduction
2017.10 - 2017.10
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Recovery of Rare Metals from Spent Denitrification Catalyst
2017.10 - 2017.10
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Simultaneous recovery and desulfurization of bitumen from oil sand using oxidative desulfurization and ultrasound irradiation
2017.10 - 2017.10
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Oxidative desulfurization of Hyper-coal using hydrogen peroxide and acetic anhydride
2017.10 - 2017.10
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Distribution of Sulfur during Solvent Extraction of Coals
2017.10 - 2017.10
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紫外線と過酸化水素によるホルムアデヒドの分解
菅原悠人,加藤貴宏,大川浩一,菅原勝康
第19回先端研究発表会 (東北大学工学部) 2017.05 - 2017.05 化学工学会東北支部・宮城化学工学懇話会
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AKAZAWA Nobuyuki, OKAWA Hirokazu, Kamal Wan Mohamad Ikhwan Bin Wan, KATO Takahiro, SUGAWARA Katsuyasu
Proceedings of Conference on Coal Science 2017 - 2017 The Japan Institute of Energy
<p>Desulfurization of bitumen was performed by combination of oxidative desulfurization (ODS) and ultrasound irradiation. Tetrahydrofuran (THF) was employed as solvent to emulsify the bitumen and improve the desulfurization ratio. In the result, the desulfurization ratio reached to 82.7% (ion-exchange water: 52%). We also investigated simultaneous recovery and desulfurization of bitumen from oil sand using ODS and ultrasound. Recovery ratio of bitumen from oil sand was 68.1% and the purity of recovered bitumen was 72.3%.</p>
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No.1-7 Characteristics and Self-heating Behavior of Moatize Coals, Moatize Coal Basin, Mozambique
UACIQUETE Dorcas L. E., KATO Takahiro, OKAWA Hirokazu, SUGAWARA Katsuyasu
石炭科学会議発表論文集 2017 - 2017 一般社団法人 日本エネルギー学会
<p>Mozambique has a great potential in terms of coal deposits, the most important is Moatize Coal Basin (MCB) located in Tete Province, Moatize district. The MCB has estimates reserves of about 2.5 billion tons, with thick coal seams allowing the open-pit exploitation. It is well known throughout the world that Moatize basin is a world class deposit for coking and thermal. However, recently, occurrences of spontaneous combustion are being resisted in both in situ coal seams and stockpiles of washed products (coking coal and thermal coal). Spontaneous combustion is a direct result of self-heating and it is a global issue affecting environment, economy and human health.</p><p>In this study, petrographic and chemical properties of samples of raw coal (<i>in situ layers</i>), coking coal and thermal coal were studied using image analysis through oil immersion microscopy and elemental and proximate analyzers (CHN, CS and TGA-DTA) respectively, to predict the propensity of self-heating. The microscopic characterization revealed important features such as changes in vitrinite reflectance, oxidation rims, micropores and cracks mainly on in situ coal and some signs of weathering and oxidation on thermal coal which are related to their reactivity and potential to self-heating leading later to spontaneous combustion</p>
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No.2-15 Arsenic Removal from Denitration Catalyst by Carbon Reduction
KATO Takahiro, SATO Yukiko, OKAWA Hirokazu, SUGAWARA Katsuyasu
Proceedings of Conference on Coal Science 2017 - 2017 The Japan Institute of Energy
<p>Decreasing of activity of the denitration catalyst caused by arsenic adsorption is one of the big problems against the stable long term operation of the coal power plant. In order to remove arsenic from the catalyst by conversion of As<sub>2</sub>O<sub>5</sub> to volatile As<sub>2</sub>O<sub>3</sub>, methanol was used as the carbon source for the reduction. Effects of treatment temperature, reaction time and partial pressure of methanol on changes in the removal extent of arsenic, the chemical forms of vanadium and the denitration activity were investigated.</p>
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No.1-15 Recovery of Rare Metals from Spent Denitrification Catalyst
SAKUSABE Kosuke, KATO Takahiro, OKAWA Hirokazu, SUGAWARA Katsuyasu
Proceedings of Conference on Coal Science 2017 - 2017 The Japan Institute of Energy
<p>Selective recovery process of titanium, vanadium and tungsten has been developed for the spent denitrification catalyst produced from coal fired plant. Volatilization behaviors of the rare metals were followed in a chlorine gas stream with the addition of carbon as a reducing agent. Methanol vapor was supplied to a fixed bed of catalyst at 400 °C and fine carbon was deposited on the surface of catalyst. The volatilization rates of the rare metals ware enhanced drastically with the use of the deposited carbon compared to pyrolytic carbon prepared from phenolphthalein. The rare metals in the catalyst could be recovered selectively at 400 °C without silicon, iron and aluminum when the deposited carbon of 20 wt% was used.</p>
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No.1-11 Oxidative desulfurization of Hyper-coal using hydrogen peroxide and acetic anhydride
ONODERA Gai, KATO Takahiro, OKAWA Hirokazu, SUGAWARA Katuyasu
Proceedings of Conference on Coal Science 2017 - 2017 The Japan Institute of Energy
<p>To develop a mild chemical desulfurization method without residual chemicals in the treated Hyper-coal, desulfurization behavior was investigated by oxidation using hydrogen peroxide and acetic anhydride at room temperature and by pyrolyzing the treated sample under nitrogen stream. XANES analysis showed that the Hyper-coal contained only thiophenic sulfur and that the thiophenic sulfur changed to sulfone during the oxidation treatment. High removal extent of sulfur with high char yield was achieved by pyrolyzing the oxidized sample prepared at room temperature for 24 hour.</p>
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No.1-12 Distribution of Sulfur during Solvent Extraction of Coals
TAMURA Mami, KATO Takahiro, OKAWA Hirokazu, SUGAWARA Katsuyasu
Proceedings of Conference on Coal Science 2017 - 2017 The Japan Institute of Energy
<p>In a series of studies on the development of coal utilization process with pre-desulfurization, three types of coal were extracted by 1-methylnapthalene and sulfur distribution from raw coals to products (Soluble, Residue and Deposit) was clarified. XANES analysis indicated that most of pyritic sulfur was distributed to Residue. Soluble contained no inorganic sulfur. Every Soluble obtained from three types of coal contained organic sulfur, especially thiophenic sulfur only. Thiophenic sulfur content in Soluble decreased linearly with the increase of the steps of extraction using an ionic liquid of imidazolium type.</p>
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Desulfurization of coal soluble by multistep extraction using ionic liquids
Katsuyasu Sugawara, Mami Tamura, Takahiro Kato, Hirokazu Okawa
6th International Conference on Sustainable Energy & Environment (SEE2016) (Bangkok) 2016.11 - 2016.11
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Effect of ultrasound irradiation on size and morphology of scorodite particles synthesized under different acidic conditions
Yuya Kitamura, Hirokazu Okawa, Takahiro Kato, Katsuyasu Sugawara
Symposium on UltraSonic Electronics (USE2016) (Busan, Korea) 2016.11 - 2016.11
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Utilization of ultrasonic atomization for dust control in underground mining
Hirokazu Okawa, Kentaro Nishi, Youhei Kawamura, Takahiro Kato, Katsuyasu Sugawara
Symposium on UltraSonic Electronics (USE2016) (Busan, Korea) 2016.11 - 2016.11
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The desulphurization process of bitumen using ultrasound
Wan Mohamad Ikhwan bin Wan Kamal, Hirokazu Okawa, Takahiro Kato, Katsuyasu Sugawara
Symposium on UltraSonic Electronics (USE2016) (Busan, Korea) 2016.11 - 2016.11
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Sulfur removal from Thai lignite by liquid-phase oxidation
Takahiro Kato, Yuuki Nagai, Hirokazu Okawa, Katsuyasu Sugawara
6th International Conference on Sustainable Energy & Environment (SEE2016) (Bangkok) 2016.11 - 2016.11
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Multi-step Desulfurization of Coal Soluble Using Ionic Liquid
Takahiro Kato, Mami Tamura, Hirokazu Okawa, Katsuyasu Sugawara
2016.10 - 2016.10
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Recovery of Precious Metals from Secondary Resource by Using Coa
Kosuke Sakusabe, Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
2016.10 - 2016.10
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Recovery of Valuable Elements from E-waste by Chlorination
Takahiro Kato, Katsuyasu Sugawara
Asian Pacific Confederation of Chemical Engineering 2015(APCChE 2015) (Melbourne, Australia) 2015.09 - 2015.10
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Desulphurization of Coal Soluble Using Ionic Liquids
Mami Tamura, Takahiro Kato, Hirokazu Okawa and Katsuyasu Sugawara
International Conference on Coal Science & Technology 2015 (ICCS&T 2015) (Melbourne, Australia) 2015.09 - 2015.10
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Sonochemical Synthesis of Matel Nanoparticles onto Cathode Materials for Lithium Ion Battery
Hirokazu Okawa, Yuki Ono, Misaki Takai, Takahiro Kato, Mineo Sato, Katsuyasu Sugawara
Sonochemical Synthesis of Matel Nanoparticles onto Cathode Materials for Lithium Ion Battery (AOSS-2) (Kuala Lumpur, Malaysia) 2015.07 - 2015.07
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New recovery process of gold from incinerated ash by chlorination
Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara
5th International Conference on Characterization and Control of Interfaces for High Quality Advanced Materials (ICCCI 2015) (Kurashiki, Japan) 2015.07 - 2015.07
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Removal of Organic Sulfur from Model Fuel and Coal Extract
Katsuyasu Sugawara, Mami Tamura, Takahiro Kato, Hirokazu Okawa
12th Eco-Energy and Materials Science and Engineering Symposium (12th EMSES) (Krabi, Thailand) 2015.06 - 2015.06
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Selective Removal of Organic Sulfur in Fuels
•Mami Tamura, Asuka Sasaki, Takahiro Kato, Katsuyasu Sugawara
5th International Conference on Sustainable Energy and Environment (SEE2014) (Bangkok) 2014.11 - 2014.11
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Decomposition of Volatile Organic Carbon with Photo-Oxidation
Yukiko Sato, Takahiro Kato,and Katsuyasu Sugawara
5th International Conference on Sustainable Energy and Environment (SEE2014) (Bangkok) 2014.11 - 2014.11
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Selective Recovery of Gold from Secondary Resources by Chlorination
Junichi Kakumazaki, Takahiro Kato, Katsuyasu Sugawara
23rd International Symposium on Chemical Reaction Engineering (ISCRE23) (Bangkok) 2014.09 - 2014.09
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Wet Chemical Preparation of Tin Film and Copper-Tin Alloy Film
Yuki Nagai, Naomichi Itakura, Takahiro Kato, Katsuyasu Sugawara
23rd International Symposium on Chemical Reaction Engineering (ISCRE23) (Bangkok) 2014.09 - 2014.09
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Recovery of Valuable Elements from Spent Printed Circuit Boards by Chlorination
Takahiro Kato, Katsuyasu Sugawara
23rd International Symposium on Chemical Reaction Engineering (ISCRE23) (Bangkok) 2014.09 - 2014.09
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Volatile Behavior of Boron during Pyrolysis and Gasification of coals
•Yuuki Mochizuki, Takahiro Kato, Katsuyasu Suagawara, Takuo Sugawara
2013 International Conference on Coal Science & Technology (Okinawa, Japan) 2013.09 - 2013.10
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Novel Recovery Process of Gold from Incinerated Ashes
Junichi Kakumazaki, Takahiro Kato, Katsuyasu Sugawara
9th World Congress of Chemical Engineering (WCCE9) (Seoul, Korea) 2013.08 - 2013.08
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Tin and Copper-tin Films Preparation from Organometallic Compounds
Naomichi Itakura, Takahiro Kato, Katsuyasu Sugawara
9th World Congress of Chemical Engineering (WCCE9) (Seoul, Korea) 2013.08 - 2013.08
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Photo-oxidation of VOCs with hydrogen peroxide
Katsuyasu Sugawara, Takahiro Kato, Kenji Murakami, Takuo Sugawara, Hitoshi Funayama
19th Regional Symposium on Chemical Engineering (Bali, Indonesia) 2012.11 - 2012.11
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Hydrogen production in steam gasification of Japanese cedar below 500 °C
Kenji Murakami, Takahiro Kato, Katsuyasu Sugawara
19th Regional Symposium on Chemical Engineering (Bali, Indonesia) 2012.11 - 2012.11
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Release Behavior of Boron During Heat Treatments of Coals
Katsuyasu Sugawara, Yuuki Mochizuki, Takahiro Kato, Yukio Enda
29th International Pittsburgh Coal Conference (Pittsburgh) 2012.10 - 2012.10
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Elution Control of Toxic Ions from Ashes
Takahiro Kato, Katsuyasu Sugawara, Yukio Enda
29th International Pittsburgh Coal Conference (Pittsburgh) 2012.10 - 2012.10
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塩化還元揮発法による電子基板からの貴金属及びレアメタルの分離回収
加藤貴宏，村上賢治，菅原勝康
化学工学会第44秋季大会 2012.09 - 2012.09
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細孔開閉機能を有するイオン交換体の開発
村上賢治，加藤貴宏，菅原勝康
第 21 回日本エネルギー学会大会 2012.08 - 2012.08
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Carbon reduction of gypsum produced from flue gas desulfurization
Takahiro Kato, Kenji Murakami, Katsuyasu Sugawara
15th Conference on Process Integration, Modeling and Optimisation for Energy Saving and Pollution Reduction (PRES 2012) (Prague) 2012.08 - 2012.08
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Synthesis of temperature-responsive adsorbent by click reaction
Kenji Murakami, Xue Yu, Takahiro Kato, Yukihiko Inoue, Katsuyasu Sugawara
20th International Congress of Chemical and Process Engineering (CHISA 2012) (Prague) 2012.08 - 2012.08
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Effect of Preparation Condition on Photoluminescence Characteristics of Zn2SiO4:Mn2+
Takahiro Kato, Hiroshi Sato, Kenji Murakami, Katsuyasu Sugawara
14th Asia Pacific Confederation of Chemical Engineering Congress (Singapore) 2012.02 - 2012.02
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Release behavior of fluorine during heat treatment of steel dusts
Takahiro Kato, Kenji Murakami, Katsuyasu Sugawara
14th Asia Pacific Confederation of Chemical Engineering Congress (Singapore) 2012.02 - 2012.02
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Effect of Catalysts on Gas Evolution and Product Distribution in Steam Gasification of Woody Biomass
Kenji Murakami, Takahiro Kato, Katsuyasu Sugawara
4th International Conference on Sustainable Energy and Environment (SEE 2011) (Bangkok) 2012.02 - 2012.02
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Dynamic behavior of mercury during coal pyrolysis
Takahiro Kato, Kenji Murakami, Katsuyasu Sugawara
4th International Conference on Sustainable Energy and Environment (SEE 2011) (Bangkok) 2012.02 - 2012.02
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Rare metal recovery from ground powder of optical glass by chlorination
Takahiro Kato, Kenji Murakami, Katsuyasu Sugawara
14th Asia Pacific Confederation of Chemical Engineering Congress (Singapore) 2012.02 - 2012.02
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Carbon reduction of lead sulfate
Katsuyasu Sugawara, Takahiro Kato, Takeshi Hatakeyama
18th Regional Symposium on Chemical Engineering (Ho Chi Minh city, Vietnam ) 2011.11 - 2011.11
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Effect of iron and calcium catalysts on pyrolysis and gasification of wood
Kenji Murakami, Masahiko Sato, Takahiro Kato, Katsuyasu Sugawara
International Conference on Coal Science & Technology 2011.10 - 2011.10
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鉄鋼ダストの炭素還元による亜鉛の揮発分離
加藤貴宏，梅田雄大，村上賢治，菅原勝康
第48回石炭科学会 2011.09 - 2011.09
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Recovery of precious and rare metals from printed circuit boards by chlorination
Takahiro Kato, Yusuke Niregi, Kenji Murakami, Katsuyasu Sugawara
6th Asia Pacific Chemical Reaction Engineering Symposium (Beijing, China) 2011.09 - 2011.09
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Recycling and cleaning of FGD gypsum by carbon reduction
Takahiro Kato, Takeshi Kimpara, Yuuki Mochizuki, Kenji Murakami, Katsuyasu Sugawara
6th Asia Pacific Chemical Reaction Engineering Symposium (Beijing, China) 2011.09 - 2011.09
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Influence of calcium catalyst on product distribution during pyrolysis of wood
Kenji Murakami, Kouta Sukegawa, Takahiro Kato, Katsuyasu Sugawara
11th Japan-China Symposium on Coal and C1 chemistry (Yinchuan, China) 2011.08 - 2011.08
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Release behavior of hazardous elements during coal pyrolysis
Takahiro Kato, Kenji Murakami, Katsuyasu Sugawara
11th Japan-China Symposium on Coal and C1 chemistry (Yinchuan, China) 2011.08 - 2011.08
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Synthesis and Ion-exchange Property of Thermosensitive Polymer/Mesoporous Silica Composite
Kenji Murakami, Xue Yu, Shinichi Watanabe, Takahiro Kato, Yukihiko Inoue, Katsuyasu Sugawara
13th Asia Pacific Confederation of Chemical Engineering Congress (Taipei, Taiwan) 2010.10 - 2010.10
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Zinc recovery from molten fly ashes
Katsuyasu Sugawara, Takahiro Kato, Kenji Murakami, Yuuki Mochizuki, Takuo Sugawara
13th Asia Pacific Confederation of Chemical Engineering Congress (Taipei, Taiwan) 2010.10 - 2010.10
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Photo-oxidation of methanethiol with hydrogen peroxide
Katsuyasu Sugawara, Mitsuru Ohta, Takahiro Kato, Takuo Sugawara, Megumi Otsuka, Hitoshi Funayama
8th World Congress of Chemical Engineering (Montreal, Canada) 2009.08 - 2009.08
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Release behavior of mercury during heat treatments of coals
Takahiro Kato, Katsuyasu Sugawara
8th World Congress of Chemical Engineering (Montreal, Canada) 2009.08 - 2009.08
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Dynamic Behavior of Alkali Metals during Heat Treatments of Coals
Katsuyasu Sugawara, Takahiro Kato, Takuo Sugawara
ACS National Meeting , Division of Fuel Chemistry (Boston, U.S.A.) 2007.08 - 2007.08
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Release Behavior of As and Se during Coal Pyrolysis and Gasification
Takahiro Kato, Katsuyasu Sugawara, Takuo Sugawara
21th International Pittsburgh Coal Conference (Osaka, Japan) 2004.09 - 2004.09