Dr. Lee's Biography
Supercritical Fluid Technology
Polymerization & Polymer Processing
Water Treatment and Purification
Chlorine Dioxide Technology
Clean and Alternative Fossil Fuel Technologies
Analysis and Characterization
Publications & Patents
In The News
Emulsion Polymerization to produce Fluoropolymers
The polymerization reaction in the production of fluoropolymers is highly exothermic. Commercial operating conditions need to be very carefully monitored and controlled. The reaction mechanism, heat and mass transfer, and control of critical micelle concentration were investigated experimentally on a specially designed system, that is a scaled-down version of the commercial manufacturing system. In this project, the heat & mass transfer conditions involving the exothermic polymerization were analyzed and its mechanistic pathway elucidated. The sponsor of the project was ATOFINA.
Clean Coal Technology
Under the research sponsorship of EPRI, perchloroethylene coal refining process has been investigated. All aspects of process and reaction engineering were studied and the process was in the pilot demonstration stage by the Midwest Ore Processing Co. An extensive process engineering study was also carried out on desulferization of Eastern U.S. coals using synergistic mixtures of supercritical fluids, with the sponsorship of the Ohio Coal Development Office (OCDO). A U.S. patent on the process was awarded.
Very efficient bioremediation processes have been developed for polycyclic aromatic hydrocarbon (pAH) treatment. The purification process has demonstrated high destruction efficiencies in a short period of time. The process is also applicable to industrial spills or contamination of hydrocarbons. The processes can be adapted to other contaminated sites such as coal and shale oil sites. Two U.S. patents have been received for this process.
A novel process that is totally different from the Siemens process has been devised. Key reaction steps and associated enabling technologies have also been investigated. The process is envisioned to have the following merits:
Many novel process technologies have been developed for the recovery of valuable chemical ingredients from natural, processed, or scrap materials. The technologies are applicable to a wide variety of materials and species.
A number of Oriental medicines can be directly converted into Western-style medicines via unique nano-enabling technologies. The conversion is accomplished by nondestructive, low-temperature, chemical-free methods.
Projects dealing with various chemical reaction processes leading to novel materials, new synthesis routes, and effective trouble-shooting have always been conducted.
If you would like to discuss about potential University research contracts for advanced chemical process studies, or need further information, please contact us.