1. Honeywell Center of Excellence in Computer-Aided Design and SINOPEC/FPCC/AspenTech Center of Excellence in Process Systems Engineering, Department of Chemical Engineering, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, Center for Molecular and Engineering Thermodynamics, Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716, and Aspen Technology, Inc., Ten Canal Park, Cambridge, Massachusetts 02141