Kyushu University Academic Staff Educational and Research Activities Database
List of Presentations
Ohno Ko-ichiro Last modified date:2021.11.02

Professor / Reaction engineering for material processing / Department of Materials Science and Engineering / Faculty of Engineering


Presentations
1. Sohei Sukenaga, Sakiko Kawanishi, Masahito Uchikoshi, Shingo Ishihara, Shungo Natsui, Ko-ichiro Ohno, Noritaka Saito, Kunihiko Nakashima, Masanori Tashiro, Hiroyuki Shibata, Effects of Atmosphere and Melting Time on Surface Tension of Iron Silicate Melts, MOLTEN2021, 2021.02.
2. , Wang Ziming, Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, Effect of magnetite on mineral phase formation, ESTAD2019, 2019.06.
3. Kazuto Nishihiro, Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, Reaction behavior between CO-CO2 gas mixture andcarbon fiber deposited during metal dusting process, ESTAD2019, 2019.06.
4. Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, Sohei Sukenaga, Shungo Natsui, Evaluation Technique of Gas Permeability in Granulated Slag Particle Bed using Softening and Melting Simulator with Micro CT Scanning, ESTAD2019, 2019.06.
5. Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, Visualization for Molten Slag Clogging Behavior during Softening and Melting of Slag Particles Packed Bed with Micro CT Observation, 148th Annual Meeting and Exhibition TMS2019, 2019.03.
6. A. Amini, Ko-Ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, Interaction between Microwaves and Fe3O4 Particles at Temperatures Lower than the
Curie point, 第13回日本電磁波エネルギー応用学会シンポジウム, 2018.11.
7. A. Amini, Ko-Ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, Coupling of Magnetite Particles with Microwaves at Temperatures lower than the Curie Point, 9th International Symposium on Electromagnetic Processing of Materials, EPM 2018, 2018.10, Effect of the particle size (d) and apparent density on the coupling of microwaves with Fe3O4 was investigated at temperatures lower than the Curie point, TC ≃ 585 °C. Two samples in the form of tablet with particle sizes of 45-75 μm (MT75) and <45 μm (MT45) and one sample in the form of powder with a particle size of <45 μm (MP45) were heated in multi-mode and maximum E- and H-field modes using a microwave generator at a frequency of 2.45 GHz. According to the results, an earlier temperature increase and also a higher temperature was achieved in the sample heated in the maximum H-filed mode. Regarding the incubation time in all samples, the particle size of Fe3O4 has no significant effect on the time required for the initial temperature increase in the presence of the H-field. In the maximum E-field mode, a shorter time was required for the temperature increase in the MT75 sample than MT45. At T≤Tc, magnetic loss and Joule loss are the dominant heating mechanisms in the presence and absence of the H-field, respectively. Magnetic loss is independent of the particle size whereas Joule loss which is influenced by electrical conductivity, affected by particle size. Therefore, above-mentioned effect of the particle size is attributed to the dominant heating mechanism. Also, some of the small particles seems to be transparent owing to a greater penetration depth (δ), ca. 80 μm at room temperature causing an earlier onset of temperature increase in sample with larger particle size, MT75. Moreover, microwave absorption in a sample with higher apparent density, MT45, was lower because of a higher electrical conductivity of sample in tablet form, MT45, than powder form, MP45..
8. Kazuto Nishihiro, Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, KINETIC ANALYSIS OF CARBON FIBER DEPOSITION ON CATALYST IRON IN CO-H2 MIXTURE GAS, 8th International Congress on the Science and Technology of Ironmaking (ICSTI2018), 2018.09.
9. Ahmadreza AMINI, Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, MAGNETITE REDUCTION by H2 DURING MICROWAVE HEATING, 8th International Congress on the Science and Technology of Ironmaking (ICSTI2018), 2018.09.
10. Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, Yusuke Morita, Kohei Sunahara, Tsunehisa Nishimura, Kenichi Higuchi, Apparent Softening Viscosity Measurement of Granulated Slag Packed Bed With Softening And Melting Simulator, 8th International Congress on the Science and Technology of Ironmaking (ICSTI2018), 2018.09.
11. Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, Apparent softening viscosity measurement of slag packed bed under loading condition, 10th Japan-Brazil Symposium on Dust Processing - Energy - Environment in Metallurgical Industries, 2018.09.
12. Z. Wang, H. Ogi, K. Ohno, T. Maeda, K. Kunitomo, Effect of magnetite on initial melt formation in sintering process, 日本鉄鋼協会 第176回秋季講演大会, 2018.09.
13. Ko-ichiro Ohno, Research activity of softening and melting simulator with rapid heating and quenching operation, The Twelfth Korea-Japan Workshop on Science and Technology in Ironmaking and Steelmaking, 2017.11.
14. Ko-ichiro Ohno, Research activity on Ironmaking technology of Kyushu University, KU-EU Workshop on Iron- and Steelmaking, 2017.10.
15. Ko-ichiro Ohno, Cao Son Nguyen, Takayuki Maeda, Kazuya Kunitomo, Role of Carbon Dissolution Reaction in the Initial Contact Period of Carbon-unsaturated Fe-C Sample Wetting on Graphite Substrate, 1st International Conference on Energy and Material Efficiency and CO2 Reduction in the Steel Industry (EMECR2017), 2017.10.
16. Ahmadreza Amini, Takayuki Maeda, Ko-ichiro Ohno, Alireza Zakeri, Kazuya Kunitomo, Effect of SrO addition to the CaO-Al2O3-SiO2 slag on desulfurization of plain carbon steel, 1st International Conference on Energy and Material Efficiency and CO2 Reduction in the Steel Industry (EMECR2017), 2017.10.
17. Kazuto Nishihiro, Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, Effect of surface characteristics of reduced iron on carbon deposition reaction by CO-H2 gas mixture, 1st International Conference on Energy and Material Efficiency and CO2 Reduction in the Steel Industry (EMECR2017), 2017.10.
18. Shungo Natsui, Ko-ichiro Ohno, Sohei Sukenaga, Tatsuya Kikuchi, Ryosuke O. Suzuki, New Discrete Element Simulation for Trickle Flow in Blast Furnace, EUROPEAN STEEL TECHNOLOGY AND APPLICATION DAYS 2017 - ESTAD 2017, 2017.06.
19. Ahmadreza Amini, 麦田湧規, 西廣隼一, 大野光一郎, 国友和也 , Simultaneous desulfurization and carbothermic reduction of FeS in the presence of
lime using microwave heating, 資源・素材学会九州支部 平成 29 年度総会・春季例会・若手研究者および技術者の研究発表会, 2017.06.
20. Cao Son Nguyen, 大野 光一郎, 前田 敬之, Kazuya Kunitomo, Wetting behavior of carbon un-saturated iron on graphite substrate
, 11th International Symposium on Advanced Science and Technology in Experimental Mechanics, 2016.11.
21. 大野 光一郎, Cao Son Nguyen, 前田 敬之, Kazuya Kunitomo, Effect of Simulant Ash on Reactive Wetting Behavior between Carbon-unsaturated Liquid Iron and Carbonaceous Material Substrate, 2nd International Conference on Smart Carbon Saving and Recycling for Ironmaking, 2016.10.
22. 大野 光一郎, Challenging analysis for complex system using cohesive zone simulator with rapid heating and rapid cooling, Advanced reduction metallurgy and coke research, 2016.06.
23. Cao Son Nguyen, 大野 光一郎, 前田 敬之, Kazuya Kunitomo, A Wettability Measurement Method for Reactive Wetting Behavior of Liquid Iron on Carbonaceous Material Substrate, Advanced reduction metallurgy and coke research, 2016.06.
24. Cao Son Nguyen, 大野 光一郎, 前田 敬之, Kazuya Kunitomo, Wetting behavior of carbon un-saturated iron on simulant coke substrate, SCANMET V 5th International Conference on Process Development in Iron and Steelmaking, 2016.06.
25. Ko-ichiro Ohno, Hiroshi Ogi, Keigo Noda, Koki Nishioka, Kazuya Kunitomo, Takayuki Maeda, Masakata Shimizu, Temperature Distribution Simulation Of Iron Ore Sintering Process Based On Consideration About Fine Coke Combustion Behavior In Quasi-particle, 2015 Sustainable Industrial Processing Summit, 2015.09.
26. Ko-ichiro Ohno, Current Challenges of Japanese Ironmaking Technology, 2015 Sustainable Industrial Processing Summit, 2015.09.
27. M. Iljana, E.P. Heikkinen, T. Fabritius, A. Kemppainen, Ko-ichiro Ohno, Takayuki Maeda, Kazuya Kunitomo, O. Mattila, T. Paananen, Softening behavior of iron ore pellets in the cohesive zone of a blast furnace, METEC and European Steel Technology and Application Days 2015, 2015.06, M. Iljana, E.P. Heikkinen, T. Fabritius,
O. Mattila, T. Paananen.
28. Ko-ichiro Ohno, Shohei Tsurumaru, Alexander Babich, Takayuki Maeda, Dieter Senk, Heinrich Wilhelm Gudenau, Kazuya Kunitomo, Effect of Carbonaceous Material's Ash on Iron Carburization at Initial Reaction Stage, METEC and European Steel Technology and Application Days 2015, 2015.06.
29. Hiroshi Ogi, Takayuki Maeda, Ko-ichiro Ohno, Kazuya Kunitomo, Effect of Coke Breeze Distribution on Coke Combustion Rate of the Quasi-Particle, AISTech - Iron and Steel Technology Conference, 2015.05.
30. Ko-ichiro Ohno, Takahiro Miyake, Shintaro Yano, Cao Son Nguyen, Takayuki Maeda, Kazuya Kunitomo, Effect of simulant ash on wetting behavior of liquid iron on carbonaceous material substrate, AISTech - Iron and Steel Technology Conference, 2015.05.
31. Ko-ichiro Ohno, Takayuki Maeda, Alexander Babich, Dieter Senk, Heinrich Wilhelm Gudenau, Kazuya Kunitomo, Investigation about Charcoal Utilization for Carburization Reaction in Ironmaking Process, The 15th International Joint Symposium on Materials Science and Engineering between Kyushu University and Chonbuk National University, 2013.10.
32. Ko-ichiro Ohno, Shohei Tsurumaru, Alexander Babich, Takayuki Maeda, Senk Dieter, Kazuya Kunitomo, Heinrich Wilhelm Gudenau, Investigation about Charcoal Ash Behavior at Initial Reaction Stage in Iron Carburization, International Conference on Smart Carbon Saving and Recycling for Ironmaking, 2013.10.
33. Ko-ichiro Ohno, Shohei Tsurumaru, Alexander Babich, Takayuki Maeda, Kazuya Kunitomo, Senk Dieter, Heinrich Wilhelm Gudenau, Fundamental Research about Effect of Ash and Mineral on Iron Carburization Behavior in Self-Reducing Pellet, The Ninth Korea-Japan Workshop on Science and Technology in Ironmaking and Steelmaking, 2013.07.
34. Ko-ichiro Ohno, Shohei Tsurumaru, Kazuya Kunitomo, Alexander Babich, Senk Dieter, Heinrich Wilhelm Gudenau, Effect of Molten Slag Formation on Iron Carburization Behavior in Ironmaking Process, The ISIJ-VDEh-Jernkontoret Joint Symposium, 2013.04.
35. Effect of slag melting behavior on metal-slag separation temperature.
36. Kinetics of reduction step of wustite to iron of hematite and quaternary calcium ferrite mixtures.
37. Effect of CO gas concentration on reduction rate of multicomponent calcium ferrite.
38. Combustion rate of coke in quasi-particles in the sintering process.
39. Effect of Carbon Structure on Iron Carburization and Primary Fe-C Liquid Formation Behavior, The 5th International Congress on the Science and Technology of Iron-making, 2009, Shanghai, China.
40. Mathematical Model of Sintering Process for Gaseous Fuel Injection.
41. Properties measurements and Mathematical model Development of Innovative Carbon Iron Ore Composites.
42. Effect of CO Gas Concentration on Reduction Rate of Iron Oxide.
43. Effect of Carbon Property on Gasification Rate of Carbon Obtained by Decomposition of Organic Waste.
44. Effective diffusivity of gas in packed beds.
45. In-situ Observation of Iron Melting Behavior due to Carburization using Laser Microscope, International Working Group on in-situ high temperature observation of metallurgical phenomena, 2009, Glasgow, UK.
46. Effective Use of Waste Plastic Materials in Iron Oxide Reduction Process, Asia Steel 2009 International Conference, 2009, Busan, Korea.
47. Rapid reduction of spherical wustite fine particle transported with CH4 gas, 3rd International Steel Conference on New Developments in Metallurgical Process Technologies, 2007, Düsseldorf, Germany.
48. Utilization of Waste Plastic Material as Reducing Agent and Gaseous Source During Iron Reduction Process, 7th Japan-Brazil Symposium on Dust Processing - Energy - Environment in Metallurgical Industries, 2008, Sao Paulo, Brazil.
49. Microscopic Observation of Iron Carburization by Coal under the Presence of Liquid Slag, Yazawa International Symposium , The minerals, Metals and Materials Society, 2003, San Diego, USA.
50. Kinetic Analysis of Iron Carburization during Smelting Reduction Gas, Report of Science and Technology of Innovate Ironmaking for aiming Energy Half Consumption, Ministry of Education, Culture, Sports, Science and Technology, 2003, Tokyo, Japan.
51. Reduction Mechanism of Spherical Wustite Transported with CH4 Gas, The 8th International Symposium on Materials Science and Engineering between Kyushu University and Chonbuk National University, 2006, Fukuoka, Japan.
52. Reduction Rate of Spherical Wustite Transported with CH4 Gas, The 6th Japan-Brazil Symposium on Dust Processing-Energy-Environment in Metallurgical Industries, 2006, Sapporo, Japan.
53. IRON CARBURIZATION IN POWDERY IRON ORE AND PULVERIZED COAL MIXTURE DURING SMELTING REDUCTION, The 4th International Congress on the Science and Technology of Ironmaking, 2006, Osaka, Japan.