Electrochemical formation of hydroxide for enhancing carbon dioxide and acid gas uptake by a solution
Abstract
A system for forming metal hydroxide from a metal carbonate utilizes a water electrolysis cell having an acid-producing anode and a hydroxyl-producing cathode immersed in a water solution of sufficient ionic content to allow an electric current to pass between the hydroxyl-producing cathode and the acid-producing anode. A metal carbonate is placed in close proximity to the acid-producing anode. A direct current electrical voltage is provided across the acid-producing anode and the hydroxyl-producing cathode sufficient to generate acid at the acid-producing anode and hydroxyl ions at the hydroxyl-producing cathode. The acid dissolves at least part of the metal carbonate into metal and carbonate ions allowing the metal ions to travel toward the hydroxyl-producing cathode and to combine with the hydroxyl ions to form the metal hydroxide. The carbonate ions travel toward the acid-producing anode and form carbonic acid and/or water and carbon dioxide.
- Inventors:
- Publication Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1136746
- Patent Number(s):
- 8,764,964
- Application Number:
- 13/324,936
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA)
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Rau, Gregory Hudson. Electrochemical formation of hydroxide for enhancing carbon dioxide and acid gas uptake by a solution. United States: N. p., 2014.
Web.
Rau, Gregory Hudson. Electrochemical formation of hydroxide for enhancing carbon dioxide and acid gas uptake by a solution. United States.
Rau, Gregory Hudson. 2014.
"Electrochemical formation of hydroxide for enhancing carbon dioxide and acid gas uptake by a solution". United States. https://www.osti.gov/servlets/purl/1136746.
@article{osti_1136746,
title = {Electrochemical formation of hydroxide for enhancing carbon dioxide and acid gas uptake by a solution},
author = {Rau, Gregory Hudson},
abstractNote = {A system for forming metal hydroxide from a metal carbonate utilizes a water electrolysis cell having an acid-producing anode and a hydroxyl-producing cathode immersed in a water solution of sufficient ionic content to allow an electric current to pass between the hydroxyl-producing cathode and the acid-producing anode. A metal carbonate is placed in close proximity to the acid-producing anode. A direct current electrical voltage is provided across the acid-producing anode and the hydroxyl-producing cathode sufficient to generate acid at the acid-producing anode and hydroxyl ions at the hydroxyl-producing cathode. The acid dissolves at least part of the metal carbonate into metal and carbonate ions allowing the metal ions to travel toward the hydroxyl-producing cathode and to combine with the hydroxyl ions to form the metal hydroxide. The carbonate ions travel toward the acid-producing anode and form carbonic acid and/or water and carbon dioxide.},
doi = {},
url = {https://www.osti.gov/biblio/1136746},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jul 01 00:00:00 EDT 2014},
month = {Tue Jul 01 00:00:00 EDT 2014}
}
Works referenced in this record:
Method for extracting and sequestering carbon dioxide
patent, May 2005
- Rau, Gregory Hudson; Caldeira, Kenneth G.
- US Patent Document 6,890,497
Reduction method of atmospheric carbon dioxide, recovery and removal method of carbonate contained in seawater, and disposal method of the recovered carbonate
patent-application, January 2005
- Katsuyoshi, Tatenuma; Kosuke, Yoshida; Osamu, Arai
- US Patent Application 10/623368; 20050011770
Removing carbon dioxide from waste streams through co-generation of carbonate and/or bicarbonate minerals
patent-application, August 2006
- JOnes, Joe David
- US Patent Application 11/233509; 20060185985
Electrochemical Apparatus to Generate Hydrogen and Sequester Carbon Dioxide
patent-application, October 2008
- Little, C. Deane; Heffernan, Timothy C.; Kosmoski, Joseph V.
- US Patent Application 12/062322; 20080248350
Process design and energy requirements for the capture of carbon dioxide from air
journal, December 2006
- Baciocchi, Renato; Storti, Giuseppe; Mazzotti, Marco
- Chemical Engineering and Processing: Process Intensification, Vol. 45, Issue 12, p. 1047-1058
CO2 capture from air and co-production of H2 via the Ca(OH)2–CaCO3 cycle using concentrated solar power–Thermodynamic analysis
journal, September 2006
- Nikulshina, V.; Hirsch, D.; Mazzotti, M.
- Energy, Vol. 31, Issue 12