| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_af99df08b153738cd418446a75d09bfc |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02C20-40 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-1493
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-1462 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-62
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-77
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-14
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C10K1-08 |
| filingDate |
1988-02-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d91a2ef45c80ff483828a460fb0e3670 |
| publicationDate |
1988-08-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
EP-0279667-A2 |
| titleOfInvention |
Process for the removal of hydrogen sulfide and optionally carbon dioxide from gaseous streams |
| abstract |
Hydrogen sulfide and/or carbon dioxide are removed from a sour gaseous stream in a contact zone by contacting the sour gaseous stream with H₂S- and/or CO₂- selective absorbent in an aqueous alkaline solution containing a polyvalent metal chelate at a pH of 7 to 10 wherein polyvalent metal chelate is in one embodiment of the invention in the reduced or lower valence state in a contact zone and is oxidized to the oxidized or higher valence state in an oxidation zone so as to convert hydrosulfide and/or sulfide salts present in the contact zone to sulfur. In a second embodiment, the aqueous alkaline solution and H₂S- and/or CO₂- selective absorbent in contact with the gaseous stream is a mixture containing a higher valence polyvalent metal chelate together with a lower valence polyvalent metal chelate, which lower valence polyvalent metal chelate is present in at least about five times the amount of the higher valence polyvalent metal chelant. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8034166-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-106110834-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8398749-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9273254-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-0044476-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0470670-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8075673-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017162351-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6083472-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114130173-B
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114130173-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10370951-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2011502774-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9458393-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-109647146-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2015173234-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8388738-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2009063041-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9719030-B2 |
| priorityDate |
1987-02-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |