http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CA-2079122-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_152ca493031abf008dea905dc49310e2 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F01N3-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B01J37-02 |
| filingDate | 1992-09-25-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_057ebaa2e361536307a858516481a7ce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_a832af0f6d677ab94f328e190ca5de68 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0e37fa77f995d41806baec70555f0e24 |
| publicationDate | 1993-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CA-2079122-A1 |
| titleOfInvention | Treating emissions from engines fueled by compressed natural gas |
| abstract | Abstract of the Invention A three-way catalyst system for treating the exhaust stream of a compressed natural gas (CNG) fueled engine operating slightly rich of stoichiometry, the said catalyst system providing high conversions and low light-off temperature for the removal of HC, CO, and NOX. A high surface area gamma alumina support is impregnated with an intimate mixture of 0.2-30% Pd and 0.5-20% La2O3, the Pd being in crystalline form with a particle size in the range of 5-500 angstroms. A method of making such catalyst system comprising sequentially impregnating a high surface area gamma alumina support with lanthana and palladium by incipient wetness techniques, such techniques comprising the procedure of contacting alumina first with a lanthanum nitrate solution of desired concentration to obtain 0.5-20% lanthana, contacting the lanthana impregnated alumina with a palladium nitrate solution of desired concentration to obtain a 0.2-30% palladium content in the catalyst, each of said steps being separated by drying and calcination. A method of treating exhaust gas from a CNG fueled engine with the catalyst system described above, comprising: (a) operating said engine at slightly rich of stoichiometry; (b) exposing such catalyst to the exhaust gases in the range of 400-750°C and at a space velocity in the range of 0-100 K hr-1, said exhaust gas being converted at an efficiency greater than 90% for each of NO, CO, and CH4. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105715337-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105715337-B |
| priorityDate | 1991-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 45.