1. College of Engineering Korea University Seoul 136-701 Republic of Korea
2. Institute of Process Engineering Chinese Academy of Sciences Beijing 100190 P. R. China
3. School of Chemical and Environmental Engineering China University of Mining and Technology of Beijing Beijing 100083 P. R. China
4. Department of Applied Chemistry Faculty of Science and Technology Chuo University 1-13-27 Kasuga, Bunkyo Tokyo 112-8551 Japan
5. Global Zero Emission Research Center (GZR) National Institute of Advanced Industrial Science and Technology (AIST) Central 5, 1-1-1 Higashi Tsukuba Ibaraki 305-8565 Japan