Production of hydrogen from water using a thermochemical copper-chlorine cycle
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United States of America Patent
Stats
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Jan 14, 2014
Grant Date -
May 27, 2010
app pub date -
Nov 25, 2008
filing date -
Nov 25, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A system for producing hydrogen gas from water decomposition using a thermochemical CuCl cycle, the improvement comprising the use of an insulated hydrogen production reactor comprising a reaction chamber and a separation chamber; the reaction chamber having a hydrogen chloride gas inlet and a solid copper inlet; one or more levels provided in the reaction chamber, the number of which is dependant on production scale and pressure drop; each level comprising a perforated plate with associated filter media, the perforations of the plate and media being of decreasing size from top to bottom of the reaction chamber, and being sized to permit downward flow of the hydrogen gas and molten CuCl products, as well as the HCL gas reactant, and to prevent entrainment of solid copper in the molten CuCl; the separation chamber being located below the reaction chamber and being of greater cross section than the reaction chamber and comprising a first hydrogen removal and entrained copper removal zone and a second molten CuCl removal zone; removal of the reaction products being controlled so as to substantially decrease the amount of entrained copper in the molten CuCl; and the first zone having outlets for removal of hydrogen gas and entrained copper particles, with the second zone having an outlet for removal of molten CuCl.
First Claim
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International Classification(s)
- 2008 Application Filing Year
- C25C Class
- 47 Applications Filed
- 25 Patents Issued To-Date
- 53.20 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- C25C Class
- 17.57 % this patent is cited more than
- 11 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 14, 2025 |
