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Electrolysis of simulated flue gas solutions in an undivided cell
Author(s) -
Scott K.,
Taama W. M.
Publication year - 1997
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199709)70:1<51::aid-jctb739>3.0.co;2-j
Subject(s) - electrolysis , anode , flue gas , electrochemistry , sieve (category theory) , graphite , platinum , cathode , chemistry , electrode , flue gas desulfurization , materials science , current density , inorganic chemistry , metallurgy , catalysis , biochemistry , physics , mathematics , organic chemistry , combinatorics , quantum mechanics , electrolyte
The electrolysis of simulated flue gas solution based on sulphite/sulphuric acid is reported. Two undivided cells were employed, a small batch cell and a sieve plate electrochemical reactor (SPER). With the batch cell, two anode materials were tested for the oxidation of sulphite to sulphate, platinum and graphite. Ebonex and zirconium cathodes were used in connection with both the anodes. High current efficiencies, above 85%, were obtained in all cases, without the formation of elemental sulphur. Comparable results, 85–95%, were obtained with the sieve plate electrochemical reactor, for a current density range of 10–25 mA cm −2 at low sulphite concentration (0·005 M ) in 2–6 M sulphuric acid. ©1997 SCI