http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-113587552-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2270-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2215-58 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2215-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2215-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-76 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04878 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04721 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-048 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04727 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-044 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-0406 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04266 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04412 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-0466 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04787 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04351 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04224 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04054 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J5-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J3-04 |
| filingDate | 2021-07-14^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-11-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2022-11-18^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-113587552-B |
| titleOfInvention | A kind of air separation system and air separation method utilizing LNG cold energy |
| abstract | The invention provides an air separation system and an air separation method using LNG cold energy. The LNG cold box unit provides LNG cold energy for the main heat exchanger cold box unit and the main tower cold box unit to realize cooling of air and nitrogen. Liquefaction; the cold box unit of the main heat exchanger cools the low-pressure purified air and nitrogen, sends the low-pressure purified air to the main tower for rectification and purification, obtains liquid oxygen at the bottom of the tower, nitrogen at the top of the tower, and argon fraction in the tower , and send the argon fraction to the argon extraction section; the argon extraction section deoxygenates, denitrogenates and rectifies the argon fraction to obtain liquid argon; the circulating nitrogen and liquid nitrogen are in the LNG cold box unit, the main heat exchanger cold box unit and The cold box units of the main tower are circulated to transfer the cold energy of LNG, and at the same time, part of the liquid nitrogen product is obtained. The system and method adopt single-tower rectification, make full use of LNG cold energy to produce oxygen, nitrogen and argon products, cancel the conventional rectification and lower tower, save investment, simpler operation and maintenance, low energy consumption and high safety. |
| priorityDate | 2021-07-14^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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