Electrochemical Oxygen Removal from Seawater in Industrial Scale Using Silver Cathode

Utsav R. Dotel; Kai Vuorilehto; Magne O. Sydnes; Hans Urkedal; Tor Hemmingsen

doi:10.1021/acs.iecr.7b02004

Electrochemical Oxygen Removal from Seawater in Industrial Scale Using Silver Cathode

Utsav R. Dotel
, Kai Vuorilehto
, Magne O. Sydnes
, Hans Urkedal
, Tor Hemmingsen^*

^*Corresponding author for this work

University of Stavanger
Deox AS
Aalto University

Research output: Contribution to journal › Article › Scientific › peer-review

4 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	8954-8960
Number of pages	7
Journal	Industrial and Engineering Chemistry Research
Volume	56
Issue number	31
DOIs	https://doi.org/10.1021/acs.iecr.7b02004
Publication status	Published - 9 Aug 2017
MoE publication type	A1 Journal article-refereed

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title = "Electrochemical Oxygen Removal from Seawater in Industrial Scale Using Silver Cathode",

abstract = "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.",

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doi = "10.1021/acs.iecr.7b02004",

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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 - https://www.scopus.com/pages/publications/85027322195

U2 - 10.1021/acs.iecr.7b02004

DO - 10.1021/acs.iecr.7b02004

M3 - Article

AN - SCOPUS:85027322195

SN - 0888-5885

VL - 56

SP - 8954

EP - 8960

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 31

ER -

Electrochemical Oxygen Removal from Seawater in Industrial Scale Using Silver Cathode

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