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Gas Purification from SO 2 in Thermal Power Plants
Author(s) -
Doichinova Maria,
PopovaKrumova Petya,
Boyadjiev Christo,
Boyadjiev Boyan
Publication year - 2014
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201300612
Subject(s) - absorption (acoustics) , combustion , chemistry , waste management , diffusion , thermal , suspension (topology) , thermal power station , chemical engineering , process engineering , materials science , thermodynamics , engineering , organic chemistry , physics , mathematics , homotopy , pure mathematics , composite material
Solid fuel combustion in thermal power plants, which use sulfur‐rich fuels, poses the problem of SO 2 removal from waste gases. In addition, purification of huge amounts of gas with low SO 2 concentration is necessary. A maximum absorption rate could decrease the size of required big apparatuses. Gas purification from low‐concentrated SO 2 in physical and chemical absorption is analyzed theoretically. A convection‐diffusion type of models is applied for creating average concentration models and for quantitative description of the absorption processes. Theoretical analysis of methods and devices for waste gas purification from SO 2 by CaCO 3 suspension indicates that the process is practically physical absorption.