TY - JOUR
T1 - Electrochemical Oxygen Removal from Seawater in Industrial Scale Using Silver Cathode
AU - Dotel, Utsav R.
AU - Vuorilehto, Kai
AU - Sydnes, Magne O.
AU - Urkedal, Hans
AU - Hemmingsen, Tor
PY - 2017/8/9
Y1 - 2017/8/9
N2 - In this study, electrochemical removal of oxygen from seawater in industrial scale is demonstrated. A test rig with an industrial scale electrochemical cell has been constructed and tested with filtrated oxygen rich seawater. The electrochemical cell was comprised of a silver mesh cathode and an iridium oxide anode with a cation exchange membrane. The effects of flow rate, pressure, and applied voltage on oxygen removal efficiency and resulting current were studied. Also, the differential pressure between the anode and cathode chambers affected the performance of the cell, and an overpressure of 0.20-0.30 bar in the anode chamber was optimal in order to obtain maximum oxygen removal. It was possible to achieve an oxygen concentration lower than 5 ppb in seawater at a flow rate of 5 L min-1. No scaling or biofilm problems were observed during a 200 h test period.
AB - In this study, electrochemical removal of oxygen from seawater in industrial scale is demonstrated. A test rig with an industrial scale electrochemical cell has been constructed and tested with filtrated oxygen rich seawater. The electrochemical cell was comprised of a silver mesh cathode and an iridium oxide anode with a cation exchange membrane. The effects of flow rate, pressure, and applied voltage on oxygen removal efficiency and resulting current were studied. Also, the differential pressure between the anode and cathode chambers affected the performance of the cell, and an overpressure of 0.20-0.30 bar in the anode chamber was optimal in order to obtain maximum oxygen removal. It was possible to achieve an oxygen concentration lower than 5 ppb in seawater at a flow rate of 5 L min-1. No scaling or biofilm problems were observed during a 200 h test period.
UR - http://www.scopus.com/inward/record.url?scp=85027322195&partnerID=8YFLogxK
U2 - 10.1021/acs.iecr.7b02004
DO - 10.1021/acs.iecr.7b02004
M3 - Article
AN - SCOPUS:85027322195
VL - 56
SP - 8954
EP - 8960
JO - Industrial and Engineering Chemistry Research
JF - Industrial and Engineering Chemistry Research
SN - 0888-5885
IS - 31
ER -