http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-107867967-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-78 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2527-185 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-755 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-02 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C2523-745 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C5-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-16 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C5-48 |
| filingDate | 2016-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2020-12-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-107867967-B |
| titleOfInvention | Method for preparing butadiene through oxidative dehydrogenation of butylene |
| abstract | The invention provides a method for preparing butadiene by oxidative dehydrogenation of butylene, which comprises a reaction stage and a post-treatment stage, wherein: the method comprises the following steps of adopting a multi-stage adiabatic fixed bed which is operated in series in a reaction stage, wherein butylene, oxygen-containing gas and water react in the presence of a catalyst in each stage of the adiabatic fixed bed, wherein a diluent of nitrogen and/or carbon dioxide is separately fed into one stage of the adiabatic fixed bed, the molar ratio of the diluent which is separately fed to all oxygen-containing gas fed into each subsequent stage of the adiabatic fixed bed is controlled, wherein the oxygen-containing gas is air, oxygen-enriched air or oxygen, and at least one oxygen-containing gas fed into each subsequent stage of the adiabatic fixed bed is oxygen-enriched air or oxygen with specific oxygen content; and a post-treatment stage for post-treating the reaction effluent from the last stage of the multi-stage adiabatic fixed bed to separate butadiene as a product. The invention has the advantage that the total energy consumption of the whole process is reduced. |
| priorityDate | 2016-09-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 84.