http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0932002-A2
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b051f9f7933c758e66f6ceda5c9fb2cc |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2200-54 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2215-50 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2250-42 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2250-20 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J2250-52 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04054 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04351 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04412 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04418 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04284 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-0409 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-0406 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/F25J3-04303 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/F25J3-04 |
| filingDate | 1999-01-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_940ce1da9470185e1cafc7aeef865d5b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3e31ee9c0d486abcf455a5269844e63 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0652ef31294b85aab23d90b9229c6047 |
| publicationDate | 1999-07-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | EP-0932002-A2 |
| titleOfInvention | Single expander and a cold compressor process to produce oxygen |
| abstract | The power consumption required by the cryogenic distillation of air in andistillation column system, comprising at least one distillation column (198) wherein thenboil-up (193; 593 Fig 5) at the bottom of the distillation column (198) producing annoxygen product (172) is provided by condensing a stream whose nitrogen concentrationnis at least equal to that in the feed air stream (100), is reduced by: (a) generating worknenergy which is in excess of the overall refrigeration demand of the distillation columnnsystem by (1) work expanding (139) a first process stream (154 Fig 2) with nitrogenncontent at least equal to that in the feed air (100) and then condensing at least a portionnof the expanded stream (240 Fig 2) by latent heat exchange (194 Fig 2; 394 Fig 3) withn(i) a liquid at an intermediate height in the distillation column (198) producing oxygennproduct and/or (ii) one of the liquid feeds (136) to this distillation column (198) having annoxygen concentration at least equal to the concentration of oxygen in the feed air (100);n(2) condensing at least a second process stream (154) with nitrogen content at leastnequal to that in the feed air (100) by latent heat exchange (194) with at least a portionn(136) of a liquid stream (130) which has oxygen concentration at least equal to thenconcentration of oxygen in the feed air (100) and which is also at a pressure greaternthan the pressure of the distillation column (198) producing oxygen product, and afternvaporization of at least a portion of said liquid stream into a vapor fraction (137) due tonlatent heat exchange (194), work expanding (139) at least a portion of the resultingnvapor stream (137); and/or (3) work expanding (503 Fig 5; 603 Fig 6)a fraction (504 Fign5; 604 Fig 6) of the feed air (100); and (b) using the work which is generated in excessnof the refrigeration need of the distillation column system to cold compress (115; 484nFig 4; 515 Fig 5) a process stream (114; 482 Fig 4; 551 Fig 5) at a temperature lowernthan the ambient temperature. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1873469-A2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-1873469-A3 |
| priorityDate | 1998-01-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 38.