Professor Emeritus B.A. University of Cambridge, 1960 M.A. University of Cambridge, 1963 Ph.D. University of Cambridge, 1966 Sc.D. University of Cambridge, 1988 Phone: 207.581.2283 Fax: 207.581.2323 Email: ruthven@maine.edu Research Interests Fundamentals of adsorption • adsorption processes Current Research Micropore Diffusion In small pores of molecular dimensions, the mechanism of transport of guest molecules is quite