Areas of Research
In the laboratories for Clean Energy Research under the direction of Professor Liang-Shih (L.-S.) Fan, a wide scope of chemical engineering subjects are studied relative to fluidization engineering, or in a broader sense, particulate and multi-phase (two- and three-phase) systems.
These subjects encompass fluid-solid reaction, bubbling gas-solid fluidization, liquid-solid fluidization, gas-solid pneumatic transport bed, circulating fluidized bed, high pressure/high temperature gas-solid and gas-liquid-solid fluidization, constrained gas-liquid-solid fluidization, inverse gas- liquid-solid fluidization, annular gas-liquid-solid fluidization and conventional gas-liquid-solid fluidization.
High pressure/high temperature fluid and particle dynamics in multiphase flow, high pressure/high temperature sensors for flow quantification, particle image velocimetry (PIV), electrical capacitance volume tomography (ECVT), fundamental powder flow mechanics, computation, and micro-fluidics are included in our research areas.
Other studies include the development of the patented OSCAR (Ohio State Carbonation Ash Reactivation) process for flue gas desulfurization and air toxics removal, which was commercially demonstrated at 5 MW McCracken Ohio Power plant. In addition, the laboratory studies super-reactivity limestone sorbent synthesis and multifunctional sorbents for removal of SOCO2/NOx, As, Se, etc.
Another recent pilot scale demonstration, the CARBONOX process, was performed at University of North Dakota's Energy and Environmental Research Center. This process removes NOX via the gas-solid reaction between NOx-laden flue gas and activated carbonaceous materials such as inexpensive high-sodium lignite coal char.
Other processes under development include CO2 separation from flue gases using high reactivity metal oxides, CO2 mineral sequestration using Mg-bearing minerals, chemical looping combustion of coal, enhanced hydrogen production with in-situ CO2 capture.