http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2018095776-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_10636948adeff7a4f9c77a5c45be2245 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8e0bf0928b608797b70bbc2b91c7e52e |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-346 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D3-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C7-11 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C5-48 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D3-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C11-167 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/C07C7-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C7-04 |
| filingDate | 2017-11-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7b5f2cf767a178a72431da59b59b35e4 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8c9b78c36ebf6d0788ec05ffef61257e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e52c951102e172baf3ab39cd60dfdfd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b0ef5146e90936bd09682ae5191e6096 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6e07eb155a5a91d1d8d805711c5f0681 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4a5766775fbb0610064b8bfbbd0a2526 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e721456925afe92206c7c10fa444aebd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0808977ec40ad3c31c30b4bb4aa0ff9e |
| publicationDate | 2018-05-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2018095776-A1 |
| titleOfInvention | Method for producing 1,3-butadiene from n-butenes by oxidative dehydrogenation, comprising aqueous scrubbing of the c4 product gas flow |
| abstract | The invention relates to a method for producing butadiene from n-butenes, comprising the following steps: A) providing a feed gas flow a containing n-butenes; B) feeding the feed gas flow a containing n-butenes and feeding a gas containing oxygen into at least one oxidative dehydrogenation zone and oxidatively dehydrogenating n-butenes to form butadiene, wherein a product gas flow b containing butadiene is obtained; Ca) cooling the product gas flow b by bring said product gas flow into contact with a circulated organic coolant, wherein a two-phase mixture containing the organic coolant and an aqueous condensate arises, and the aqueous condensate c1a is removed in a phase separator; Cb) compressing the remaining product gas flow b, wherein an aqueous condensate c1b and a gas flow c2 containing butadiene are obtained; Da) removing low-boiling gas constituents as a gas flow d2 from the gas flow c2 by absorption of the C 4 hydrocarbons in an absorbent, and Db) subsequently desorbing the C 4 hydrocarbons from the laden absorbent flow in a desorption column, wherein a C 4 product gas flow d1 containing secondary components is obtained; E) scrubbing the C 4 product gas flow d1 with an aqueous flow, wherein a C 4 product gas flow e1 depleted of secondary components and an aqueous flow e2 laden with secondary components are obtained; F) optionally splitting the C 4 product flow e1, by extractive distillation with a solvent that is selective for butadiene, into a material flow f1 containing butadiene and the selective solvent and a material flow f2 containing n-butenes; G) optionally distilling the material flow f1 containing butadiene and the selective solvent into a material flow g1 consisting largely of the selective solvent and a material flow g2 containing butadiene; wherein the scrubbing step E) is performed with an aqueous scrubbing flow that at least partly contains the aqueous condensate c1a removed in step Ca) and/or the aqueous condensate c1b removed in step Cb). |
| priorityDate | 2016-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
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