http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7364912-B2
Outgoing Links
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|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ff6e179dee2947e573d21e11743cb44b http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fc4941900c0d56c470e8bff768c7fa58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fc5744043b60d9415554c21b333f1371 |
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| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B3-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-0606 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M8-0662 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C1-006 |
| classificationIPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-04 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01N33-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M8-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C1-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B3-00 |
| filingDate | 2002-09-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2008-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f94dd80a25e30887ab41059b8576043f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_1b92abc35ad32bc4b97a27f72a0eb0d8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2281fe3bb6e24e848bffefe8c7f196e4 |
| publicationDate | 2008-04-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-7364912-B2 |
| titleOfInvention | Controlling the flow of hydrogen and ammonia from a hydrogen generator during a breakthrough with hydrated copper (II) chloride trap |
| abstract | Gas flow is controlled to a feed gas consuming device depending on whether a contaminant gas is present. In one embodiment, hydrogen gas flow from a hydrogen gas generator to a hydrogen consuming device, such as a fuel cell, gas chromatograph or a flame ionization detector, is terminated when there is chemical contaminant breakthrough in the hydrogen gas flow. The apparatus relates to the use of a sensor for detecting a predetermined concentration of a chemical contaminant such as ammonia. In one embodiment the apparatus terminates the gas flow when a concentration of ammonia in the gas flow corresponds to a breakthrough (e.g., approximately in the range of 2.0% or greater). The apparatus prevents the ammonia-contaminated hydrogen from disabling such a hydrogen consuming device that would have otherwise received the contaminated gas flow. The apparatus terminates such a hydrogen contaminated gas flow by exposing a breakthrough detection material to the gas flow, wherein this material is substantially only reactive to concentrations of a predetermined contaminant (e.g., ammonia) for terminating the gas flow when such concentrations are indicative of a breakthrough of the contaminant. For instance, such a material may undergo a readily discernible change when in the presence of at least a predetermined concentration of the contaminant corresponding to a breakthrough. Such a discernible change in the breakthrough detection material may be, e.g., one or more of: a change in volume, density, opacity, color and/or electrical conductivity or potential. The detection material may be used in series with other substances that chemically and physically capture impurities in the gas flow until the detection material reacts, stopping the flow of hydrogen to the hydrogen consuming device. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012028363-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9029028-B2 |
| priorityDate | 2001-10-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.