| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_14e0bc11208b42a0067ddfa09bc2ce63
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_87856c9fe549e97cacaf7765ba7d5d19
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9020fdd049dcdcc6809d0cdc454318fc
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9d38b69e51406faf936cdab1b6fcbdc3 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C41-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C07C43-04 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-09
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C43-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C41-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10L1-02 |
| filingDate |
1996-01-29-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95d28a8650c9e076229e651750ceeef9
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_aaf14028c5818aed3944e059fdab0f0f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_3a978abeada37b3508c5e98496aa331f |
| publicationDate |
1996-08-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-9623755-A1 |
| titleOfInvention |
Preparation of fuel grade dimethyl ether |
| abstract |
A process for the preparation of fuel grade dimethyl ether from a hydrogen and carbon oxides containing synthesis gas, wherein the synthesis gas is converted to a mixed process gas of dimethyl ether, methanol and water in one or more catalytic reactors in the presence of a catalyst having activity both in synthesis of methanol and methanol dehydration; the mixed process gas is cooled to obtain a liquid process phase containing the produced methanol, dimethyl ether and water and a gaseous process phase containing unconverted synthesis gas and a part of produced dimethyl ether, which process comprises further steps of separating the gaseous phase and liquid phase; passing the liquid phase to a first distillation unit and distilling off a top product stream containing dimethyl ether and methanol and withdrawing a bottom stream containing methanol and water; passing the bottom stream to a second distillation unit and distilling off a methanol containing stream, introducing the methanol into a purge washing unit; washing the gaseous process phase with the methanol in a purge washing unit and withdrawing from the unit a washing stream of dimethyl ether and methanol; converting a part of the methanol in the washing stream to dimethyl ether and water in a catalytic dehydration reactor by contact with a dehydration catalyst; withdrawing from the dehydration reactor a product stream of dimethyl ether, water and unconverted methanol; and combining the top product stream from the first distillation unit with the product stream from the dehydration reactor to obtain a combined product stream of fuel grade dimethyl ether. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-03035805-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9567897-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6069180-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6205957-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6458856-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1010683-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-9921814-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/AU-722773-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8991368-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6191175-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-2695946-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/NL-1007389-C2 |
| priorityDate |
1995-02-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |