http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-104936930-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-34 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-887 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2521-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2521-02 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C5-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-08 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C5-48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-167 |
| filingDate | 2014-01-13^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2017-03-29^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2017-03-29^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-104936930-B |
| titleOfInvention | The method that the oxidative dehydrogenation of n-butene prepares butadiene is carried out by peroxide content is monitored during product is processed |
| abstract | The present invention relates to the method for preparing butadiene from n-butene, including：A feed gas stream (a) containing n-butene are provided)；B stream (a) and oxygen-containing gas are introduced into dehydrogenation zone and by n-butene oxidative dehydrogenation into butadiene), product gas stream (b) are obtained；C) stream (b) is cooled down and is compressed, stream (b) is contacted with coolant and obtain condensate stream (c1) and the gas streams containing butadiene, n-butene, vapor, oxygen and low boiling hydrocarbon (c2)；D C is absorbed in absorbing medium) 4 Hydrocarbon is separating low-boiling point gas composition, the medium stream that is absorbed and gas streams (d2), from absorbing medium stream desorbing C from stream (c2) 4 Hydrocarbon obtains C 4 Product gas stream (d1)；E stream (d1) extractive distillation is separated into into the stream containing butadiene (e1) and the stream containing n-butene (e2))；F stream (e1) distillation is obtained into stream (f1) and the stream containing butadiene (f2))；Wherein in step C) in the coolant supplied from loop and/or in step D) in the absorbing medium supplied from loop take out sample and detect peroxide content. |
| priorityDate | 2013-01-16^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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