http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109516445-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-133 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-129 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01C1-0417 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C25B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B21-38 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25B1-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-38 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B21-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01C1-04 |
| filingDate | 2018-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-109516445-B |
| titleOfInvention | Closed circulation process for preparing nitric acid by combining electrolysis water and air separation |
| abstract | A closed cycle process method for manufacturing nitric acid by combining electrolysis water and air separation belongs to the technical field of chemical manufacturing, waste heat recovery and thermal/kinetic conversion, and particularly realizes zero emission of chemical waste gas by replacing fossil raw materials with clean energy. The hydrogen production by electrolyzing water is used as raw material for synthesizing ammonia, the by-product oxygen is used for preparing nitric acid by ammonia oxidation, the oxygen deficiency part is supplemented by air separation, and the by-product nitrogen is used as raw material for synthesizing ammonia, so that the closed cycle nitric acid production process from ammonia preparation is formed by complementation, and the pollution source of nitric acid tail gas is cut off. 15 ten thousand tons of double-pressure ammonia oxidation nitric acid preparation devices are produced every year, wherein 1041.2kg/h of hydrogen is supplied by electrolysis, 8330 kg/h of oxygen is supplied, 13883 kg/h of oxygen is supplied by air separation, and 45697 kg/h of nitrogen is supplied; the diluted nitric acid with the concentration of more than 60% (100%) is produced at 21.86 t/h, the superheated steam with the pressure of 4.0MPa is produced at 17 t/h, and the net power is output at 5770 kW. The method replaces ammonia used in the traditional nitric acid process with electricity, and provides a downstream industrial chain for deep utilization of renewable energy sources such as wind power, hydropower, photoelectricity and the like. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-4124601-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023006291-A1 |
| priorityDate | 2018-12-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.