Associate Professor
Chemical Engineering
Office Location: Steinman Hall T - 311
Office Hours: Friday 1:00PM - 5:00PM
Phone: (212) 650-6688
Fax: (212) 650-6660
E-mail:
jalee@ccny.cuny.edu
Website:
http://www-che.engr.ccny.cuny.edu/lee/public
Education:
Ph.D., 2000, Carnegie Mellon University
M.S., 1992, Seoul National University
B.S., 1990, Seoul National University
Areas of Expertise:
Reactive Separation and Gas Hydrate Separation/Storage
Current Research Interests:
Continuous Reactive Separation The main advantage of reactive separation is the miniaturization of complex process units by combining reaction and separation simultaneously. To obtain desired reaction conversions as well as product purities in one piece of equipment, it is very important to understand the interaction between reaction and separation. The previous research was focusing on the understanding of how to superimpose chemical reaction on physical separation by visualizing reactive separation systems in the untransformed composition space. Now we are aiming at developing a general shortcut method in order to predict reasonable reaction holdups and energy demands in a reactive separation column. From the shortcut results, we can obtain design insight into the optimal distribution of reaction zones in a column and evaluate the feasibility of reactive systems. This shortcut method can screen many design alternatives at the early stage of design and its results can be served as the initializations for rigorous optimizations. Gas Hydrate Separation and Storage Gas hydrates are crystalline compounds that consist of water and light hydrocarbon gases. It has the general formula of (H2O)nGas, where n is the hydration number. In a hydrate structure, gas molecules are captured in crystalline structures referred to as cavities. The size of a unit cavity for gas hydrates is between 5 to 6.6 Å. One gas molecule is surrounded by n water molecules associated with hydrogen bonding between water molecules and van der Waals bonding between gas and water molecules. Since Hammerschmidt discovered that gas hydrates were responsible for the plugging of natural gas process and transportation lines, the research interest in gas hydrate has been focused on preventing their formation in gas transportation lines. Recently, the gas industry has paid more attention to gas hydrate formation because the hydrates can be used as a good gas storage medium – one unit volume of gas hydrate can store over one hundred unit volumes of gas at the standard state. The gas hydrate formation is thermodynamically feasible but its rate is very slow. Using nano-materials, the rate is significantly accelerated. We focus on developing a new kinetics on gas hydrate formation under nano-materials and deriving gas separation/storage systems using gas hydrates.
Professional Experience:
2000-2001, Alexander von Humboldt Research Fellow 1992-1997, Research Engineer in S-Oil Refining Company
Current Professional Affiliations:
ACS, AIChE, KIChE
Selected Recent Publications:
S. Lee, J. Zhang, R. Mehta, T. Woo, and J. W. Lee, “Methane Hydrate Equilibrium and Formation Kinetics in the Presence of an Anionic Surfactant”, in press, J. Phys. Chem. C (March, 2007).
S. Lee, P. Yedlapalli, and J. W. Lee, “Excess Gibbs Potential Model for Multi-Component Hydrogen Hydrates”, J. Phys. Chem. B 110, 26122-26128 (2006).
J.W. Lee, P. Yedlapalli, and S.Y. Lee, "Prediction of Hydrogen Hydrate Equilibrium by Integrating Ab-initio Calculations with Statistical Thermodynamics" Journal of Physical Chemistry B, 110, 2332-2337 (2006).
J. Chin, J. Choe, and J. W. Lee, “Feasible Products in Complex Batch Reactive Distillation”, AIChE J., 52, 1790-1805 (2006).
J. Chin, and J. W. Lee, “Rapid Generation of Composition Profiles for Reactive Extractive Cascade,” AIChE J. 51, 922-930 (2005).
J. Chin, H. Kattukaran, and J. W. Lee, “Feasibility Studies on Non-isomolar Quaternary Reactive Systems,” Ind. Eng. Chem. Res. 43(22), 7092-7192 (2004).
Z. Guo and J. W. Lee, “Feasible Products in Batch Reactive Extractive Distillation.” AIChE J., 50, 1484 (2004).
Z. Guo, J. Chin, and J. W. Lee, “Feasibility of Continuous Reactive Distillation with Azeotropic Mixtures.” Ind. Eng. Chem. Res., 43, 3758 (2004).
F. Citro, and J. W. Lee, “Widening the Applicability of Reactive Distillation Technology by Using Concurrent Design,” Ind. Eng. Chem. Res., 43, 375 (2004).
Z. Guo, M. Ghufran, and J. W. Lee, “Feasible products in Batch Reactive Distillation.” AIChE J., 49, 3161-3172 (2003).
J. W. Lee, S. Brüggemann, and W. Marquardt, “Shortcut Method for Kinetically Controlled Reactive Distillation Systems,” AIChE J., 49, 1471-1487 (2003).
J. W. Lee, “Feasibility Studies on Quaternary Reactive Distillation Systems,” Ind. Eng. Chem. Res., 41, 4632 - 4642 (2002).
J. W. Lee and A. W. Westerberg, “Graphical Design Applied to MTBE and Methyl Acetate Reactive Distillation Processes,” AIChE J., 47, 1333-1345 (2001).
J. W. Lee, S. Hauan and A. W. Westerberg, “Feasibility of a Reactive Distillation Column with Ternary Mixtures,” Ind. Eng. Chem. Res., 40, 2714-2728 (2001).
Jae W. Lee and A. W. Westerberg, "Graphical Design Applied to MTBE and Methyl Acetate Reactive Distillation Processes," AIChE J., 47, 1333-1345 (2001).
Jae W. Lee, S. Hauan and A. W. Westerberg, "Feasibility of a Reactive Distillation Column with Ternary Mixtures," Ind. Eng. Chem. Res., 40, 2714-2728 (2001).
J. W. Lee, S. Brüggemann, and A. W. Westerberg, “Visualization of the Ethyl Acetate Distillation Systems,” Chemie Ingenieur Technik, 73(6), 680-681 (2001).
Jae W. Lee, S. Hauan and A. W. Westerberg, "Extreme conditions in Binary Reactive Distillation," AIChE J., 46, 2225-2236 (2000)
Jae W. Lee and A. W. Westerberg, "Visualization of stage calculations in ternary reacting mixtures," Comp. Chem. Engng.,24, 639-644 (2000).
Jae W. Lee, S. Hauan, and A. W. Westerberg, "Graphical Methods for Reaction Distribution in a Reactive Distillation Column," AIChE J., 46, 1218-1233 (2000).
Jae W. Lee, S. Hauan, and A. W. Westerberg, "Circumventing an Azeotrope in Reactive Distillation," Ind. Eng. Chem. Res., 39, 1061-1063 (2000).
Jae W. Lee, S. Hauan, K. M. Lien, and A. W. Westerberg, "A Graphical Method for Designing Reactive Distillation Columns I- The Ponchon-Savarit Method," Proceedings A Royal Society London, 456, 1953-1964 (2000).
Jae W. Lee, S. Hauan, K. M. Lien, and A. W. Westerberg, "A Graphical Method for Designing Reactive Distillation Columns II- The McCabe-Thiele Method," Proceedings A Royal Society London, 456, 1965-1978 (2000).
Jae W. Lee, S. Hauan, K. M. Lien and A. W. Westerberg, "Difference Points in Extractive and Reactive Cascade II- Generating Design alternatives by lever rule for reactive systems," Chem. Eng. Sci., 55, 3161-3174 (2000).
