http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107998815-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2259-402 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2257-102 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2256-245 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D2259-414 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C10L3-105 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10L3-10 |
| filingDate | 2017-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107998815-B |
| titleOfInvention | Method and device for enriching methane by separating nitrogen |
| abstract | The invention relates to the technical field of gas separation, in particular to a separation method for separating low-concentration methane (less than 30%) in nitrogen and a device used by the same, and particularly relates to a method and a device for enriching methane by separating nitrogen. The methane-nitrogen mixed gas passes through the adsorption bed A, the adsorbent containing TUTLY-1 selectively adsorbs methane gas, after the adsorption bed A is saturated in methane adsorption, the adsorption bed A is decompressed or vacuumized for desorption, the desorbed gas after primary concentration is used as a raw material gas to enter the adsorption bed B, and the adsorbent containing TUTLY-2 selectively adsorbs nitrogen. By adopting the method, the loss rate of methane in the mixed gas is low, the equipment investment is small, the start and the stop are flexible, and the operation is simple and convenient; the concentration of the obtained methane gas can reach more than 95%, and nitrogen with higher purity (more than 95%) can be obtained. The methane-rich gas with the methane concentration of more than 95 percent can be directly used as LNG fuel or natural gas for vehicles. |
| priorityDate | 2017-12-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 51.