Closed cycle photocatalytic process for decomposition of hydrogen sulfide to its constituent elements
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 19, 2001
Grant Date -
N/A
app pub date -
Aug 17, 1999
filing date -
Mar 25, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and system for separating hydrogen and sulfur from hydrogen sulfide(H.sub.2 S) gas being produced from oil and gas waste streams. The hydrogen sulfide(H.sub.2 S) gas is first passed into a scrubber and filtration unit where it encounters polysulfide solution. Elemental sulfur is freed when the H.sub.2 S interacts with the solution, the sulfur is filtered through a porous media such as a ceramic frit, and continues to a stripper unit where the excess H.sub.2 S is removed from the sulfide solution. The excess H.sub.2 S returns to the scrubber and filtration unit, while the sulfide solution passes into a photoreactor containing a semiconductor photocatalyst such as Cadmium Sulfide(CdS), Platinized Cadmium Sulfide, Pt-CdS, Zinc Sulfide, ZnS, Zinc Ferrate, ZnFe.sub.2 O.sub.4, Indium Sulfide, In.sub.2 S.sub.3, along with a 450-500 nm light source.
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