Research Interests

I am interested in the interactions of fluid molecules on surfaces, in porous solids and in packed adsorbent beds.  My current emphasis is centered on adsorption and percolation phenomena, understanding of which directly links to many important chemical engineering processes such as separation of fluid mixtures, gas storage, and heat pump, etc. Recently, for the first time in the area of adsorption, I have developed Adsorption Cellular Automata a nonequilibrium adsorption simulation method using celullar automata.  This method will contribute toward elucidating the complex fluid behavior associated with metastabilities and hysteresis in porous adsorbents in the mesoscopic scale.  Another important develpment is a nonequilibrium macroscopic approach to adsorption hysteresis.  Understanding the mechanisim of hysteresis has been unclear although many experimentalists and theorists have been trying to understand this phenomenon based on the conventional concepts such as capillary condensation and pore-blocking.  This nonequilibrium approach elucidates not only the mechanism of adsorption hysteresis but also other important relevant problems including scanning curves, the initial variability of hysteresis loops, the disappearence of hysteresis.

Publications and Presentations

I. Park, "Adsorption Hysteresis Dynamics," Seventh International Conference on Fundamental of Adsorption (FOA7), May 20-25, 2001, Nagasaki, Japan.

I. Park, "Adsorption Cellular Automata for Phase Transition in Nanopores,"   Session 5. Non Equilibrium and Monte Carlo Simulation at Molecular Simulation '99: Applications and Methodology of Molecular Simulation in the Physical and Biological Sciences, 19 April - 4 May 1999.

I. Park, "Adsorption Hysteresis in Nonisothermal Diffusion-Limited Equilibration, Session [156] Adsorption: Kinetics and Equilibrium at AIChE annual meeting, Miami, FL, Nov. 1998.

I. Park, "Cellular Automata for Microstructural Evolution of Near-Critical Fluids," Session [73] Thermodynamics of Condensed Phase Systems: Confined Systems at AIChE annual meeting, Miami, FL, Nov. 1998.

I. Park, "Cellular Automata for Microstructural Evolution of Near-Critical Fluids within Nanotubes," Session/BB: Computational and Mathematical Models of Microstructural Evolution at MRS 1998 Spring Meeting

I. Park, "Saturation of Pore-filling far from Capillary Condensation: a Study based on Adsorption Cellular Automata," Sixth International Conference on Fundamentals of Adsorption, 24-28 May 1998, Giens, France; p.201-206 in Fundamental of Adsorption, ed. F. Meunier, Elsevier, New York (1998).

I. Park, "Effects of Pressure on Aqueous Phase Adsorption in Hydrophobic Micropores: a Computer Simulation Study," AIChE 1997 Annual Meeting, Los Angeles, CA; p. 1034-1037 in Preprints of Topical Conference on Separation Science and Technologies Part II (Nov.16-21, 1997), The American Institute of Chemical Engineering, New York, NY.

I. Park, "Nonisothermal Effects on Adsorption Hysteresis in Micropores: A Nonequilibrium Monte Carlo Simulation Study," presented at Characterization of Porous Materials: from Angstroms to Millimeters TRI/Princeton Workshop, Princeton, NJ, USA (June 18-20, 1997).

I. Park, A. Markov and Y. Cohen, "Equilibrium and Dynamic Adsorption of Aqueous Benzoic Acid on a Macronet Resin: Wetting and Pressure Effects," (?).

Y. Cohen, I. Park and A. Markov, "Removal of Organics from Aqueous Systems using Macronet Resins: Dynamic Sorption and Regeneration," AIChE Annual Meeting, Chicago, Il, Nov. 1996.

I. Park, A. Markov and Y. Cohen, "Removal of Organic Contaminants from Water Using Polymer Resins by Cyclic Adsorption and Regene ration," UC Toxic Substances Research and Teaching Program Ninth Annual Research Symposium, University of California, Santa Cruz, March 30, 1996.

I. Park and A. Markov, "Removal of Organic Contaminants from Water Using Sorbent Resin Beds by Cyclic Adsorption and Regeneration," The Environmental Risk Reduction Newsletter, pp.7-9, March 1996.

I. Park, "Vapor Sorption Dynamics and Sorption Swelling in Packed Beds," Invited Talk at the Dept. of Civil and Environmental Engineering, UCLA, Lo s Angeles, California (January 24, 1995).

I. Park, Adsorption and Sorbent Particle Dynamics in Packed Beds, Ph.D. Dissertation, Ohio State University (1993).

I. Park and K.S. Knaebel, "Swelling-Shrinking Behavior in Packed Beds of Adsorbent During Column Operation," Fourth International Conference on Fundamentals of Adsorption, Kyoto, Japan, May 1992; Fundamentals of Adsorption, edited by M. Suzuki, Elsevier, New York (1993), 507-513.

I. Park and K.S. Knaebel, "Adsorption Breakthrough Behavior: Unusual Effects and Possible Causes," AIChE J., 38(5), 660-670, 1992.

I. Park and K.S. Knaebel, "Effects of Adsorbent Expansion and Contraction on Adsorption Behavior," AIChE Annual Meeting, Los Angeles, California, Nov. 1991b.

I. Park and K.S. Knaebel, "Adsorber Dynamics: Stress Associated with Swelling and Shrinkage," NSF-CNRS Workshop, Gif/Yvette, France, Sept. 1991.; Recents Progres en Genie des Procedes, 5(17), 191-196, 1991a.

I. Park and K.S. Knaebel, "Effect of Isotherm Shape on Breakthrough Behavior," AIChE Annual Meeting, Chicago, Illinois, Nov. 1990.

I. Park and J.M.D. MacElroy, "Simulation of a Hard-Sphere Fluid in Bicontinuous Random Media," Molecular Simulation, 2, 105-145, 1989b.

I. Park, Diffusion and Percolation in Two Phase Random Media, M.S. Thesis, University of Missouri-Rolla, 1989a.

I. Park and J.M.D. MacElroy, "Hard-Sphere Fluid in Random Connected Media," AIChE Annual Meeting, New York, New York, Nov. 1987.