http://rdf.ncbi.nlm.nih.gov/pubchem/patent/KR-101168775-B1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S203-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y10S585-911 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-08 |
| filingDate | 2005-02-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2012-07-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | KR-101168775-B1 |
| titleOfInvention | Recovery method of crude 1,2-butadiene |
| abstract | According to the present invention, the dividing wall (T) is arranged in the longitudinal direction of the column to form the first subregion (A), the second subregion (B) and the lower combination column region (C) and the A process for recovering crude 1,3-butadiene by extractive distillation with selective solvent from a C 4 fraction comprising C 4 acetylene as secondary component in a split wall column (TK) having a bottom evaporator (V1) disposed upstream. It is about. The present invention allows the bottoms stream (17) comprising solvent loaded with C 4 acetylene with a limited proportion of 1,3-butadiene to be withdrawn to a fractional wall column (TK) such that the loss of 1,3-butadiene is economically acceptable. Energy input to the split wall column (TK) through the bottom evaporator (V1). The invention also feeds bottoms stream (17) to the acetylene degasser (AG), strips the C 4 acetylene overhead in the acetylene degassing unit (AG), and recovers the purified solvent to the bottoms stream (27). Characterized in that.n n n n C4 fraction, extractable distillation, C4 acetylene, 1,3-butadiene, split wall column |
| priorityDate | 2004-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.