http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11389790-B2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_7b1962bdeafe58e2f312c308fe511c31 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-00 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J38-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01J23-94 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J38-62 |
| filingDate | 2020-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2022-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d0201b0132054b3e019c72c140e38398 |
| publicationDate | 2022-07-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-11389790-B2 |
| titleOfInvention | Method to recover spent hydroprocessing catalyst activity |
| abstract | In accordance with one or more embodiments of the present disclosure, a method for regenerating and rejuvenating a spent catalyst comprising coke and contaminant metals includes washing the spent catalyst with a solvent; drying, at least partially, the spent catalyst; partially combusting the spent catalyst to remove a portion of the coke, thereby producing a partially de-coked catalyst; acid washing the partially de-coked catalyst; and fully combusting the partially de-coked catalyst, thereby producing a regenerated and rejuvenated catalyst. The portion of the coke removed during the partial combustion is greater than or equal to 10 wt. % and less than or equal to 60 wt. %. No rare earth elements are added to the partially de-coked catalyst prior to the fully combusting the partially de-coked catalyst. |
| priorityDate | 2020-06-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 119.