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Lee, Lloyd

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Lloyd L. Lee

Lloyd Lee

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C.M. Sliepcevich Professor; School of Chemical, Biological and Materials Engineering

Education
B.S., National Taiwan University (1963)
M.S., University of Nebraska (1965)
Ph.D. Northwestern University (1971)

Experience
Research Engineer, E.I. du Pont de Nemours & co. (1970-71);
Research, University of Paris (1972); Visiting Associate Professor, National Central University, Taiwan (1972-74); Engineer, Manager, Engineering Services Division, Tashing Chemical Fiber Co., Taiwan Chemical Engineering (1974-75); Visiting Assistant Professor, Cleveland State University (1975-76);
Sabbatical leaves, Chemistry Department, University of California, San Diego and Berkeley, (1990);
Spanish National Research Council (CSIS) (1997).

Research Interests

I do molecules. The interactions among molecules determine the properties of gases, liquids, and solids. That's why water forms hydrates, colloids remain in solution, and polymers exhibit glass transitions. The properties can be thermodynamic (enthalpy, entropy, etc.). They can also be rate-related (transport properties i.e., viscosity, diffusivity, etc.). Currently I am engaged in making refrigeration with non-fluorochlorocarbons because freons are not environmentally friendly. Thus, we are looking into electrolytes as absorbents.

I am also interested in using "supercritical fluids" for extraction operations in food processing and drug purification. These supercritical fluids can "do their stuff" at moderate temperatures so as not to degrade the products. They are used in coffee decaffeination, removal of nicotine from tobacco, elimination of "bitters" from beer, and many other processes.
Thirdly, I am interested in adsorption of gases on solid surfaces. This behavior is the basis of drying, chromatographic separation, and pressure-swing adsorption processes. By the way, did I mention cleaning up natural gas by chemically treating the strams? This makes environmental sense. It is a long way from molecules to these productive processes. But science and engineering are closely intertwined. So hug a molecule today!

Selected Publications

"Accurate correlation of the second virial coefficients of some 40 chemicals based on an anisotropic sqaure-well potential", (with J.H. McFall and D.S. Wilson), Industrial and Engineering Chemistry Research, 41, 1107-1112 (2002).

"Structure and bridge functions of fused sphere dimeric fluids", (with Y. Duda, Y. Kalyuzhnyi, W.G. Chapman and P.D. Ting), Chemical Physics Letters, 339, 89-95 (2001).

"Structures and properties of hard sphere mixtures based on a self-consistent integral equation", (with A. Malijevsky), J. Chemical Physics, 114, 7109-7117 (2001).

"Structure of fused-dimer fluids: A new closure based on the potential distribution theorems", (with Y. Duda, Y. Kalyuzhnyi, W.G. Chapman and P.D. Ting), J. Chemical Physics, 114, 8484-849 (2001).

"Structure of fused-dimer fluids: A new closure based on the potential distribution theorems", (with Y. Duda, Y. Kalyuzhnyi, W.G. Chapman and P.D. Ting), J. Chemical Physics, 114, 8484-849 (2001).

"Thermodynamic modeling of the acid gas treating systems and industrial applications", Proceedings of the 2001 Laurence Reid Gas Conditioning Conference, Norman, OK, 371-395 (2001).

"A self-consistent integral equation study of the structure and thermodynamics of the penetrable sphere fluid", (with M.J. Fernaud and E. Lomba), J. Chemical Physics, 112, 810-816 (2000).

"Thermodynamic consistency and reference scale conversion in multisolvent electrolyte solutions", J. Molecular Liquids, 129-147 (2000).

"The Potential Distribution-Based Clusires to the Integral Equations for Liquid Structure: The Lennard-Jones Fluid," J. Chem. Phys., 197, 7360 (1997).