http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011518307-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2250-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2250-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2250-40 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04418 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04206 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04187 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04351 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04181 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04303 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04103 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04393 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-0406 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04309 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-0409 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J3-04 |
| filingDate | 2009-04-08^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2011-06-23^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2011518307-A |
| titleOfInvention | Method and apparatus for separating air by cryogenic distillation |
| abstract | Air by cryogenic distillation in a dual column, having a medium pressure column (15) and a low pressure column (17), the low pressure column comprising a bottom vaporizer (19), an intermediate vaporizer (21) and a top vaporizer (23) The compressed air is purified in the purification unit, cooled in the exchange line and supplied to the medium pressure column of the double column, the oxygen rich fluid is withdrawn from the low pressure column, heated and sent to the customer, the medium pressure The nitrogen removed from the column is divided into at least three parts, the first part of nitrogen is expanded by the first turbine (47), and the second part of nitrogen is compressed by the cold compressor (51) and sent to the bottom vaporizer. The nitrogen thus condensed is sent to at least one column of the double column and the third part of the nitrogen is removed from the upper vaporizer downstream of the column from which it is removed and upstream of the upper vaporizer without a pressure change step. Feed, thus condensed nitrogen feed to at least one column of the double column, compressed, and sends the gas stream comprising air cooled and purified to the intermediate vaporizer. [Selection] Figure 1 |
| priorityDate | 2008-04-22^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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