http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-110283033-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-14 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-005 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-12 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-12 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C15-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-14 |
| filingDate | 2019-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2021-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2021-11-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-110283033-B |
| titleOfInvention | Multi-region coordinated control microcirculation high-capacity adsorption crystallization coupled aromatic hydrocarbon production method and system |
| abstract | The invention relates to a multi-region coordinated control micro-circulation high-capacity adsorption crystallization coupled aromatic hydrocarbon production method and a system, wherein the discharged material of an isomerization unit is directly sent to a simulated moving bed for selective adsorption without C9+ impurity removal, extract liquid is extracted from a desorption region, raffinate is extracted from the middle part of the adsorption region, auxiliary raffinate is extracted from the bottom of the adsorption region, the extract liquid is fractionated by an extract liquid tower, a desorbent material stream is extracted from the top of the tower, a PX material stream is extracted from the bottom of the tower, the raffinate is fractionated by a raffinate tower, a desorbent material stream is extracted from the top of the tower, a PX C8A isomer-poor material stream containing C9+ heavy aromatic hydrocarbons is extracted from the bottom of the tower, the auxiliary raffinate is fractionated by a C9-removing tower, the desorbent material stream is extracted from the top of the tower, a C9+ heavy aromatic hydrocarbon material stream is extracted from the bottom of the tower, and a PX C9+ heavy aromatic hydrocarbon-poor PX C8A isomer-poor material stream is extracted from the side line. The system comprises an adsorption concentration unit, an isomerization unit and a crystallization purification unit. The invention obviously reduces the total circulating amount of the process material flow and reduces the construction investment and the operation energy consumption of the whole aromatic hydrocarbon integrated device. |
| priorityDate | 2019-06-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 48.