High temperature and low feed acid concentration operation of HCl electrolyzer having unitary membrane electrode structure
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Oct 13, 1981
Grant Date -
N/A
app pub date -
May 14, 1980
filing date -
May 14, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An HCl electrolyzer utilizing a membrane with catalytic electrodes physically bonded to the surfaces of the membrane is provided with an electron current conducting structure which comprises an array of individual current conducting elements contacting the electrode. The cell is operated at high temperatures (60.degree.-90.degree. C.) to take advantage of the reduction of electrode overpotential at these temperatures but with low feed acid concentrations (.ltoreq.9M) to minimize hydrogen chloride in the chlorine, i.e, HCl vapor pressure is below 0.1 atmospheres--76 Torr. There is also a large decrease in membrane resistance as temperature is increased. Simultaneously O.sub.2 evolution is suppressed to maintain O.sub.2 content in the chlorine at 0.1% or less.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully