1. Chemical Engineering Dept; Universidad Michoacana de San Nicolás de Hidalgo, Morelia; Michoacán México 58060
2. Instituto de Investigaciones Químico Biológicas, Universidad Michoacana de San Nicolás de Hidalgo, Edificio B1; Ciudad Universitaria, Morelia; Michoacán México 58030
3. Chemical Engineering Dept; Texas A&M University; College Station TX 77843
4. Adjunct Faculty at the Chemical and Materials Engineering Dept., Faculty of Engineering; King Abdulaziz University; Jeddah 21589 Saudi Arabia