1. a Postgraduate Program in Materials Technology and Industrial Processes, Feevale University, Novo Hamburgo, Brazil
2. b Chemical Engineering Department, Universidade do Vale do Rio dos Sinos – Unisinos, São Leopoldo, Brazil
3. c Chemical Engineering Department, Centro Universitário Ritter dos Reis – Uniritter, Porto Alegre, Brazil
4. d Universidade Estadual de Campinas, Campinas (SP), Brazil