Extraction of Carbon Dioxide and Hydrogen from Seawater by an Electrochemical Acidification Cell. Part 4. Electrode Compartments of Cell Modified and Tested in Scaled-Up Mobile Unit

Abstract

An electrochemical acidification cell was scaled-up and integrated into a mobile skid design. Based on four separate evaluations of this cell, a second cell was modified to contain less ion exchange capacity in the electrode compartments. The objective of this modification was to improve the CO2 production rate by reducing the time it takes for the effluent seawater equilibrium pH to reach 6 after a change in polarity. This report details the performance of the modified electrochemical cell as a function of pH, current, time, polarity reversal, and CO2 and H2 recovery. These results are compared to those measured for the original cell.

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Document Details

Document Type
Technical Report
Publication Date
Sep 03, 2013
Accession Number
ADA589263

Entities

People

  • Dennis R. Hardy
  • Felice Dimascio
  • Frederic W. Williams
  • Heather Willauer

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Carbon Dioxide
  • Chemical Synthesis
  • Chemistry
  • Efficiency
  • Electrical Resistance
  • Electrochemical Cells
  • Equations
  • Flow Rate
  • Fossil Fuels
  • Fuels
  • Inert Materials
  • Ion Exchange
  • Ion Exchange Resins
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Science

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies
  • Software Engineering