Open AccessA Model on a Bubbling Fluidized Bed Process for CO2Capture from Flue Gas
Author(s) -
Jeong-Hoo Choi,
Pil-Sang Youn,
Ki-Chan Kim,
Chang-Keun Yi,
Sung-Ho Jo,
Ho-Jung Ryu,
Young-Cheol Park
Publication year - 2012
Publication title -
korean chemical engineering research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.168
H-Index - 9
eISSN - 2233-9558
pISSN - 0304-128X
DOI - 10.9713/kcer.2012.50.3.516
Subject(s) - regenerative heat exchanger , flue gas , residence time (fluid dynamics) , thermodynamics , chemistry , moisture , process engineering , nuclear engineering , materials science , waste management , chemical engineering , heat exchanger , physics , geotechnical engineering , organic chemistry , engineering
This study developed a simple model to investigate effects of important operating parameters on performance of a bubbling-bed adsorber and regenerator system collecting from flue gas. The chemical reaction rate was used with mean particles residence time of a reactor to determine the extent of conversion in both adsorber and regenerator reactors. Effects of process parameters - temperature, gas velocity, solid circulation rate, moisture content of feed gas - on capture efficiency were investigated in a laboratory scale process. The capture efficiency decreased with increasing temperature or gas velocity of the adsorber. However, it increased with increasing the moisture content of the flue gas or the regenerator temperature. The calculated capture efficiency agreed to the measured value reasonably well. However the present model did not agree well to the effect of the solid circulation rate on capture efficiency. Better understanding on contact efficiency between gas and particles was needed to interpret the effect properly.
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