| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_c8abcd5cf457f99d1a992386d886af19 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2210-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2210-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2245-90
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2270-16 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-021
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-004
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0035
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0042
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0062
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0235
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0221
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-001
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0204
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0065
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-005
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0072
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0292
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0288
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-008
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0067
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J1-0208 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J1-02
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J1-00 |
| filingDate |
2021-08-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e5c7a4eaf8b863112f939e403647e33c
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e8f5042f845a89addddb19f35442ef1 |
| publicationDate |
2022-07-14-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2022221220-A1 |
| titleOfInvention |
Methods and systems for hydrogen liquefaction |
| abstract |
Systems and methods for liquefying a gaseous hydrogen that include a first refrigeration stage and a second refrigeration stage. The first refrigeration stage includes a first heat exchanger configured to flow a first refrigerant to pre-cool the gaseous hydrogen. The second refrigeration stage includes a second heat exchanger configured to flow a second refrigerant to liquefy and sub-cool the hydrogen. The second refrigerant is split into two streams that flow through two compressor-expanders and multiple passes through the second heat exchanger before being recombined to repeat the second refrigeration stage circuit. |
| priorityDate |
2021-01-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |