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Countercurrent gas–solid trickle flow reactor with structured packing: Hydrodynamics and CaO–CO 2 reaction
Author(s) -
Obradović Ana,
Levec Janez
Publication year - 2015
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.14731
Subject(s) - countercurrent exchange , sorption , trickle bed reactor , plug flow , trickle , chemical reaction engineering , chemistry , materials science , thermodynamics , chemical engineering , analytical chemistry (journal) , chromatography , adsorption , catalysis , engineering , organic chemistry , physics , political science , law
The sorption reaction CaO–CO 2 was examined in a countercurrent gas–solid trickle flow reactor with regularly stacked packing at T = 500–600°C, p CO2 = 40–50 kPa, solid‐phase fluxes S = 0.3–0.5 kg m −2 s −1 , and CaO particles of 500–710 μm in size. Sorption kinetics was evaluated by thermogravimetric (TG) technique. The random pore model was used for the description of the carbonization reaction. Hydrodynamic characteristics of gas–solid trickle flow were estimated at room temperature and ambient pressure. Plug flow model of both gas and solid‐phase, with the parameters obtained from TG and hydrodynamics experiments, satisfactorily described the sorption process in countercurrent gas–solid trickle flow reactor. © 2015 American Institute of Chemical Engineers AIChE J, 61: 1601–1612, 2015