http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2022144866-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_70ec63d39d6704bacc5c7068c93ded43 http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_50907fc1b392e2bf592f74fb8123032d |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07D301-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D301-10 |
| filingDate | 2022-01-07^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_8e4fab50586526f0d6efc9a485161058 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_97194fe2f52f9c627bac466ede1b4a1d |
| publicationDate | 2022-07-07^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2022144866-A1 |
| titleOfInvention | Process for the production of ethylene oxide |
| abstract | A process for the epoxidation of ethylene comprising:contacting an inlet feed gas comprising ethylene, oxygen and one or more reaction modifiers consisting of organic chlorides with an epoxidation catalyst comprising a carrier, and having silver, a rhenium promoter, and oneor more alkali metal promoters deposited thereon;wherein the inlet feed gas has an overall catalystchloriding effectiveness value (Cleff) represented by the formula (I): wherein [MC], [EC], [EDC], and [VC] are the concentrations in ppmv of methyl chloride (MC), ethylchloride (EC), ethylene dichloride (EDC), and vinylchloride (VC), respectively, and [CH 4 ], [C 2 H 6 ] and [C 2 H 4 ] are the concentrations in mole percent of methane, ethane, and ethylene, respectively, in the inlet feedgas; wherein at a cumulative ethylene oxide production cumEO 1 of at least 0.2 kton ethylene oxide/m 3 catalyst, said process is operating at a reaction temperature having a value T 1 and with the inlet feed gas having an optimum overall catalyst chloriding effectiveness value of Cl eff1 to produce ethylene oxide with an ethylene oxide production parameter at a value EO 1 ; and characterised in that the carrier is a fluoride-mineralized alpha-alumina carrier and said process is subsequently operated such that at a cumulative ethylene oxide production cumEO x ,wherein cumEO x is at least 0.6 kton ethylene oxide/m 3 catalyst greater than cumEO 1 , the reaction temperature5has an increased value T x to maintain said ethylene oxide production parameter at a value EO1 whilst the optimum overall catalyst chloriding effectiveness value of theinlet feed gas Cl effx is controlled such that the ratioof Cl effx /C leff1 is in the range of from 0.8 to 1.2. |
| priorityDate | 2020-12-29^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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