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Investigation on the pretreatment and cleaning technologies ofAustralian brown coal

Research Project

Project/Area Number 15404024
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section海外学術
Research Field Catalyst/Resource chemical process
Research InstitutionKyoto University

Principal Investigator

MIURA Kouichi  Kyoto University, Graduate School of Engineering, Professor, 工学研究科, 教授 (40111942)

Co-Investigator(Kenkyū-buntansha) MAE Kazuhiro  Kyoto University, Graduate School of Engineering, Professor, 工学研究科, 教授 (70192325)
KAWASE Motoaki  Kyoto University, Graduate School of Engineering, Associate Professor, 工学研究科, 助教授 (60231271)
NAKAGAWA Hiroyuki  Kyoto University, Environment Preservation Center, Associate Professor, 環境保全センター, 助教授 (40263115)
MAKI Taisuke  Kyoto University, Graduate School of Engineering, Associate Professor, 工学研究科, 助教授 (10293987)
ASHIDA Ryuichi  Kyoto University, Graduate School of Engineering, Assistant Professor, 工学研究科, 助手 (80402965)
菅原 勝康  秋田大学, 工学資源学部, 教授 (60154457)
Project Period (FY) 2003 – 2005
Project Status Completed (Fiscal Year 2005)
Budget Amount *help
¥12,800,000 (Direct Cost: ¥12,800,000)
Fiscal Year 2005: ¥2,900,000 (Direct Cost: ¥2,900,000)
Fiscal Year 2004: ¥4,800,000 (Direct Cost: ¥4,800,000)
Fiscal Year 2003: ¥5,100,000 (Direct Cost: ¥5,100,000)
KeywordsAustralia / Brown coals / MTE / Dewatering / Wastewater treatment / Trace metal / Molecular dynamics / 赤外吸収スペクトル
Research Abstract

In this project, we researched the environmental problems in Australian brown coal mine and efficient techniques for the dewatering of brown coals and the treatment of wastewaters from dewatering processes. Project members visited brown coal mine in Victoria, Latrobe Valley and discussed with the brown coal researchers. Australian members were invited to the International Conference related to coal utilization. This project was introduced in the Work Shop held just after the conference and many Australian and Japanese researchers discussed together about the brown coal utilization. 5 members have stayed at Australian brown coal research institutes for 1 - 2 months to carry out detail surveys of brown coal mine and recent technologies related to brown coal dewatering. Following results were obtained
1)Release of trace elements during combustion and treatment of wastewater in the open cut brown coal mine will be serious problems.
2)Organic residue with high ash content is the byproduct of the preparation of coal for the export to Japan and Korea. The power plant is now working utilizing the organic residue for coal preparation.
3)MTE (Mechanical Thermal Expression) is focused on as an efficient dewatering process. The relationship between the process conditions and wastewater properties was clarified.
4)An Australian PhD student has stayed at Kyoto for two weeks and performed the hydrothermal gasification of wastewater for MTE process using Ni/C catalyst developed by the head investigators. The possibility for treating MTE wastewater was presented.
5)It was found that the efficiency for whole process should be considered to determine the operating conditions for realizing the hydrothermal gasification process with MTE process.
6)Release behavior of alkali metals, arsenic compounds, and selenium compounds was examined.
7)Hydrogen bondings related to the aggregate structure of brown coal were simulated by using MM method and MD method.

Report

(4 results)
  • 2005 Annual Research Report   Final Research Report Summary
  • 2004 Annual Research Report
  • 2003 Annual Research Report

URL: 

Published: 2003-04-01   Modified: 2016-04-21  

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