http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-19980018373-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S62-939 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-32 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04418 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-0409 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04872 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04303 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-0443 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J3-04 |
| filingDate | 1997-08-05^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 1998-06-05^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-19980018373-A |
| titleOfInvention | Method for producing medium purity oxygen using double column and auxiliary low pressure column |
| abstract | The present invention relates to a process for cryogenic distillation of an air feed to produce an oxygen product, in particular an oxygen product of medium purity (80-99%, preferably 85-95%). The method uses auxiliary low pressure columns in addition to conventional high pressure columns and low pressure columns. This auxiliary low pressure column is preferably operated at the same pressure as the main low pressure column, and is thermally integrated with the top of the high pressure column by a reboiler / condenser at the bottom thereof to reserve crude liquid oxygen from the bottom of the high pressure column. Process. The overhead vapor stream and bottom stream thus obtained are then injected into the main low pressure column. Preferably, the bottoms stream is supplied at least partially in steam to the main low pressure column. |
| priorityDate | 1996-08-06^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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