Dr. Jeff Tester, is the Croll Professor of Sustainable Energy Systems in the School of Chemical and Biomolecular Engineering at Cornell University. He also serves as Director of the Cornell Energy Institute and Associate Director for Energy in the Atkinson Center for a Sustainable Future. Prior to his appointment at Cornell in 2009, Dr. Tester was the H.P. Meissner Professor of Chemical Engineering at the Massachusetts Institute of Technology and served as Director of MIT’s Energy Laboratory for 12 years (1989-2001). Professor Tester is a fellow of the Royal Society of Chemistry and currently a member of the IPCC’s Working Group on Renewable Energy Sources. He also serves on the advisory boards for the National Renewable Energy Laboratory, Idaho National Laboratory, Los Alamos National Laboratory, and the American Council on Renewable Energy.

For the last 25 years, Dr. Tester has been active in examining chemical processes in hydrothermal and supercritical media as they relate to fuel upgrading, renewable energy extraction and conversion and environmental control technologies. Major thrusts include biomass reforming and unconventional fossil fuel upgrading and chemical synthesis in biphasic water-carbon dioxide mixtures. In particular, experimental and theoretical studies currently under investigation include: hydrothermal liquefaction and gasification of a range of biomass feedstocks including lignin cellulosics from forest products, high lipid algal feeds and agriculture wastes and sludges; methods for clean chemical processing; and life cycle analysis of energy and mass flows. Dr. Tester also continues his interests in technologies associated with advanced drilling, geothermal energy recovery and conversion. Research in this area deals with phase transformations, chemical reaction kinetics and reaction pathway analysis, salt formation dynamics and separation, molecular thermodynamics in mixed water-hydrocarbon-salt systems, equation of state modeling, and process simulation and modeling.