1. Department of Forestry, Michigan State University, East Lansing, Michigan 48824, United States
2. Chemical & Biological Engineering Department, Montana State University, Bozeman, Montana 597017, United States
3. Division of Sustainable Process Engineering, Luleå University of Technology, Luleå 97187, Sweden
4. Department of Chemical Engineering and Material Science, Michigan State University, East Lansing, Michigan 48224, United States