Dr. Hamid Arastoopour is Henry R. Linden Professor of Engineering and Director of the Wanger Institute for Sustainable Energy Research (WISER) at Illinois Institute of Technology, Chicago, IL; Dr. Dimitri Gidaspow is Distinguished University Professor in the Department of Chemical and Biological Engineering at Illinois Institute of Technology, Chicago, IL; Dr. Robert W. Lyczkowski is a Chemical Engineer in Darien, IL. Margaret M. Murphy is Assistant Director of the Wanger Institute for Sustainable Energy Research (WISER) at Illinois Institute of Technology, Chicago, IL.