| Predicate |
Object |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-1468
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B17-05
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-73
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-52
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B01D53-523 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01D53-73
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/C01B17-05 |
| filingDate |
2002-07-05-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f3100a95563732b10a72b0bdf9aa37d4
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_34b72dc1563601ce2b759144dac6dc94
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_6f0d3cfabbf4e01f17495591a609ad45 |
| publicationDate |
2003-01-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2003021744-A1 |
| titleOfInvention |
Process for removing hydrogen sulfide from gas streams which include or are supplemented with sulfur dioxide, by scrubbing with a nonaqueous sorbent |
| abstract |
The invention relates to improvements in a known process and system wherein hydrogen sulfide is removed from a gaseous stream, using a nonaqueous scrubbing liquor in which are dissolved sulfur and a reaction-promoting amine base. In a first aspect of the invention sulfur dioxide is added to the sulfur-amine nonaqueous sorbent (or advantage is taken of SO 2 which may already be present in the gas stream) to obtain better H 2 S removal, lower chemical degradation rates, and lower rates of formation of byproduct sulfur salts. In a further aspect of the invention the gas to be treated is mixed with oxygen and passed through an oxidation catalyst reactor to either effect oxidation of part of the H 2 S to form the required amount SO 2 for reaction with the remaining H 2 S, or to effect partial oxidation of the H 2 S in the feed gas to form elemental sulfur, or to form various combinations of products as desired for the application, prior to scrubbing with the nonaqueous solvent. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7582485-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7378068-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9334455-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2005084977-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2006275193-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2014209611-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9682343-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2016296878-A1 |
| priorityDate |
1999-02-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |