Research


Carbon Capture, utilization, and storage (CCUS) involves technology that directly captures, transports, utilizes, and/or stores CO2 emitted from existing fossil fuel power plants. The thermal design of the CO2 capture process, particularly maintaining the reaction temperature, is a key factor for achieving efficiency. At the η (ETA) lab, we focus on the thermal-fluid analysis of the reactor and heat transfer in two-phase flows to design real reactors, mainly considering the heat duty and overall heat transfer in gas-solid two-phase flows.


Dual gas-solid circulating fluidized bed reactor for CO2 capture scheme; Mechanism of heat transfer and chemical reaction (1-D thermal circuit and general chemical reaction equation) (a) at carbonation reactor and (b) at regeneration reactor.
 

Laboratory Scale Reactor

Experiment
Gas-Solid behaviors and heat transfer
Particle behaviors (Cyclone)

Pilot Scale Reactor

Full-Scale Model


Distributor

Related Publications

  1. Choi S, Yun M, Kim K, Park Y-K, Cho HH. Energy-Efficient Design of Dual Circulating Fluidized Bed System for CCUS by Multi-Tube Configuration with Junctions. Energy 2022;245;123258.[Link]
  2. Choi S, Moon H, Bang M, Kim K, Park Y-K, Cho HH. Efficient design of heat exchange for CFB reactors in CO2 capture system regarding geometry-induced secondary flow. Energy Conversion and Management 2021;235:113995.[Link]
  3. Choi S, Moon H, Lee N, Kim K, Park Y-K, Cho HH. Thermal design of dual circulating fluidized bed reactors for a large-scale CO2 capture system. Applied Thermal Engineering 2020;171:115114.[Link]
  4. Choi S, Yoo H, Moon H, Park Y-K, Cho HH. Heat transfer and gas-solid behaviors in pneumatic transport reactor used of carbon capture system. Journal of Mechanical Science and Technology 2017;31:5081–7.[Link]
  5. Moon H, Choi S, Park Y-K, Cho HH. Thermal-fluid characteristics on near wall of gas-solid fluidized bed reactor. International Journal of Heat and Mass Transfer 2017;114:852–65.
  6. Yoo H, Moon H, Choi S, Park Y-K, Cho HH. Effect of the jet direction of gas nozzle on the residence time distribution of solids in circulating fluidized bed risers. Journal of the Taiwan Institute of Chemical Engineers 2017;71:235–43.