http://rdf.ncbi.nlm.nih.gov/pubchem/patent/RU-2009104099-A
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2270-08 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2210-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2205-40 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2270-904 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P20-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2205-60 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-069 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-066 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-061 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B23-00 |
| filingDate | 2009-02-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2010-08-20-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | RU-2009104099-A |
| titleOfInvention | HELIUM PRODUCTION METHOD |
| abstract | 1. A method for separating helium from a helium-containing fraction, in particular from helium-, nitrogen- and methane-containing fractions, characterized in that! a) the helium-containing fraction (5) is at least partially condensed (E2) and separated (D2) into a helium-rich gas fraction (6) and a helium-depleted liquid fraction (9 '),! b) a helium-rich gas fraction (6) is condensed ( E3) at least until the concentration of helium in the resulting gas fraction (7) is at least 90%, preferably at least 95%, and in particular at least 98%,! c) the helium-depleted liquid fraction (9 ') is expanded (b'), vaporized until at least 70%, preferably at least 85%, of the helium contained therein is in a gaseous state and separated (D4) to the helium-rich gas fraction (11 ') and the helium-poor liquid fraction (12'), and! d) the helium-rich gas fraction (11 ') is heated and added to the helium-containing fraction (5). ! 2. The method according to claim 1, characterized in that the helium-containing fraction (5) is compressed in one or more stages (C1, C2) before it is condensed and separated into a helium-enriched gas fraction (6) and a helium-depleted liquid fraction (9 ') preferably up to a pressure in the range between 1 and 5 MPa (10 and 50 bar). ! 3. The method according to claim 1 or 2, characterized in that the helium-containing fraction (5) is subjected to separation from nitrogen (E1, D1) prior to its condensation and separation into a helium-enriched gas fraction (6) and a helium-depleted liquid fraction (9 ') ... ! 4. The method according to claim 3, characterized in that the nitrogen-rich fraction (3) obtained by separation from nitrogen (E1, D1) is expanded (a) to a reduced pressure, separated (D1 ') into a helium-containing nitrogen-depleted gas fraction |
| priorityDate | 2008-02-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 30.