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Reactive absorption of NO and SO 2 into aqueous NaClO in a counter‐current spray column
Author(s) -
Raghunath Chelluboyana Vaishnava,
Mondal Monoj Kumar
Publication year - 2015
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.1946
Subject(s) - aqueous solution , absorption (acoustics) , chemistry , stack (abstract data type) , analytical chemistry (journal) , thermal power station , power station , chromatography , materials science , waste management , thermodynamics , organic chemistry , physics , computer science , engineering , composite material , programming language
The experiments were performed in a spray column to study the simultaneous absorption of NO and SO 2 using NaClO solution from simulated gas stream under various experimental conditions. The effects of various influencing parameters, such as absorbent concentration, reaction temperature, initial SO 2 and NO concentration, and initial pH of NaClO solution on simultaneous removal of SO 2 and NO, were emphatically investigated in regard to coal‐fired thermal power plant stack gas emission control. The maximum removal efficiencies of SO 2 and NO were found as 97% and 87.8%, respectively, at 313 K, initial NaClO solution pH 5.4 and 0.024 M NaClO concentration. The addition of CO 2 in simulated gas stream was also carried out to see its influence on removal efficiency of SO 2 and NO. The results using a spray column showed that NaClO can be used effectively for simultaneous removal of NO and SO 2 from coal‐fired thermal power plant simulated gas stream. © 2015 Curtin University of Technology and John Wiley & Sons, Ltd.