Environmental Technology Research Network
in the Asia-Pacific Region

DB for Research Project
Category(1) : Wastes
Category(2) : Impact assessment

1. Project Name
2. Duration
3. Research Catagory 1
4. Research Catagory 2
5. Research Field
6. Researchers
7. Affiliation 1
8. Affiliation 2
9. Address
10. Country
11. Phone
12. Fax
13. Project Summary
14. Publications
15. International Joint Study with

Korea Institute of Energy Research(KIER), Korea

1. Desulfurization from Coal and Petroleum Coke by using Caustic Leaching Process
2. 1995-1997
3. wastes, carbon
4. reaction mechansim, impact assessment
5. engineering
6. Si-hyun LEE, Eung-kwon SHON, Sang-il CHOI, Ju-soo HYUN, Chu-sik PARK, Young-jun LIM, Sung-wan KIM
7. Low Emission Combustion Research Team, Energy Conversion Research Department
8. KIER
9. 71-2, Jangdong, Yusonggu, Taejon
10. Korea
11. 82-42-860-3452
12. 82-42-860-3302
13. The purpose of this project is to make ultra clean carbonaceous material from coal andcoke by removing the sulfur and ash using caustic. Although caustic leaching process(molten or solution) has been recognized as an expensive process for desulfurization until now, it is an only process that can make high quality acivated or cleaned carbon from high sulfur and high ash solid fuel. Molten caustic leaching and impregnation in caustic solution followed by calcination process are investigated. recovery of caustic also studied in this project.
14. 1) Si-Hyun Lee, Changes in Combustion Characteristics of Coals after Treatment with Molten Caustic Leaching, of the Korean Institute of Chemical Engineers, 32, 376-384,1994
    2) Si-Hyun Lee, Changes in Organic Structure of Coals after Treatment with Molten Caustic Leaching, J of the Koren Institute of Chemical Engineers, 33, 675-683, 1995
    3) Si-Hyun Lee, Effect of Molten Caustic Leaching on the Structure of Anthracite, Twelfth International Pittsburgh Coal Conference, 499-504, 1995

Mechanical Engineering Laboratory(MEL), Japan

1. Evaluation Method for Manufacturing Systems
2. 1992-1996
3. global change, air, water, wastes, hazardous substances
4. counter measures, source inventory, impact assessment, risk management
5. engineering
6. Shun'ichi SADO, Atsushi IWATA, Hideo INOUE
7. Surface and Interface Technology Division,Department of Manufacturing Systems
8. MEL, AIST, MITI
10. Japn
11. 81-298-61-7211
12. 81-298-61-7167
13. In order to reduce the ecological impact of manufacturing, it is necessary to minimize the environmental burden of each part of the system. We have developed a new computerized simulation method for assessing the environmental impact of proposed new products and manufacturing processes. Inputs to the simulator include environmental loads, and product and facility information. The materials and energy which are input to and output from the system under analysis are measured in "Ecounits", an index which represents the total environmental burden of the resources used and system outputs. The output from the simulator allows calculation of the predicted increment in ecounits caused by operation of the system. During tests of the simulator, the environmental impact of a hypothetical factory producing mechanical components was predicted, and the simulation method was shown to provide realistic and useful data.
14. 1) Shun'ichi Sado, Atsushi, Iwata, Hideo Inoue, Seiji Nakahara, Nobuo Shikata, Ecofactory Manufacturing System for Future Generations and its Evaluation Method through Computer Simulation, Environmentally Conscious Design and Manufacturing, 2, 79-84, 1994
    2) Shun'ichi Sado, Atsushi Iwata, Planning and Evaluation of Machinery Manufacturing Processes in Environmental Burden Respects, International Journal of Environmentally Conscious Design & Manufacturing, 4(1), 83-89, 1995