1. Pulp and Paper Research Institute of Canada, 3800 Wesbrook Mall, Vancouver, British Columbia V6S 2L9, Canada
2. Department of Chemical Engineering, Kyoto University, Kyoto-Daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
3. Department of Chemical and Biological Engineering, University of British Columbia, 2216 Main Mall, Vancouver, British Columbia V6T 1Z4, Canada