1. The Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843-3122, United States
2. Chemical Engineering Department, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Michoacán 58060, México
3. Gas and Fuels Research Center, Texas A&M Engineering Experiment Station, College Station, Texas 77843, United States