BR9900541A - Processo e aparelho para realizar a retificação, criogênica de ar de alimentação. - Google Patents
Processo e aparelho para realizar a retificação, criogênica de ar de alimentação.Info
- Publication number
- BR9900541A BR9900541A BR9900541-7A BR9900541A BR9900541A BR 9900541 A BR9900541 A BR 9900541A BR 9900541 A BR9900541 A BR 9900541A BR 9900541 A BR9900541 A BR 9900541A
- Authority
- BR
- Brazil
- Prior art keywords
- supply air
- carry out
- out rectification
- cryogenic supply
- pressure column
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04375—Details relating to the work expansion, e.g. process parameter etc.
- F25J3/04387—Details relating to the work expansion, e.g. process parameter etc. using liquid or hydraulic turbine expansion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04163—Hot end purification of the feed air
- F25J3/04169—Hot end purification of the feed air by adsorption of the impurities
- F25J3/04175—Hot end purification of the feed air by adsorption of the impurities at a pressure of substantially more than the highest pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04248—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion
- F25J3/04284—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams
- F25J3/0429—Generation of cold for compensating heat leaks or liquid production, e.g. by Joule-Thompson expansion using internal refrigeration by open-loop gas work expansion, e.g. of intermediate or oxygen enriched (waste-)streams of feed air, e.g. used as waste or product air or expanded into an auxiliary column
- F25J3/04296—Claude expansion, i.e. expanded into the main or high pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
- F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
- F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
- F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04721—Producing pure argon, e.g. recovered from a crude argon column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/90—Details relating to column internals, e.g. structured packing, gas or liquid distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2240/00—Processes or apparatus involving steps for expanding of process streams
- F25J2240/02—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream
- F25J2240/10—Expansion of a process fluid in a work-extracting turbine (i.e. isentropic expansion), e.g. of the feed stream the fluid being air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2245/00—Processes or apparatus involving steps for recycling of process streams
- F25J2245/58—Processes or apparatus involving steps for recycling of process streams the recycled stream being argon or crude argon
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
"PROCESSO E APARELHO PARA REALIZAR A RETIFICAçãO CRIOGêNICA DE AR DE ALIMENTAçãO". Um sistema de retificação criogênica para a separação do ar de alimentação no qual pelo menos parte do ar de alimentação é liq³efeito a montante das colunas de separação, todo o ar de alimentação liq³efeito é introduzido dentro de uma coluna de pressão superior, e então uma parte desse ar de alimentação liqÙfeito é retirado da coluna de pressão superior e de forma serial é introduzida em uma coluna de pressão inferior.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/059,263 US5878597A (en) | 1998-04-14 | 1998-04-14 | Cryogenic rectification system with serial liquid air feed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR9900541A true BR9900541A (pt) | 2000-02-08 |
| BR9900541C1 BR9900541C1 (pt) | 2000-06-06 |
Family
ID=22021864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9900541-7A BR9900541C1 (pt) | 1998-04-14 | 1999-02-04 | Processo e aparelho para realizar a retificação, criogênica de ar de alimentação. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5878597A (pt) |
| EP (1) | EP0952416A3 (pt) |
| KR (1) | KR19990082696A (pt) |
| CN (1) | CN1122810C (pt) |
| BR (1) | BR9900541C1 (pt) |
| CA (1) | CA2260722C (pt) |
| ID (1) | ID22402A (pt) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10155383A1 (de) * | 2001-11-10 | 2003-05-28 | Messer Ags Gmbh | Verfahren und Vorrichtung zur Tieftemperaturzerlegung von Luft |
| US7263840B2 (en) * | 2003-10-22 | 2007-09-04 | Triumf | Automatic LN2 distribution system for high-purity germanium multi-detector facilities |
| US7299656B2 (en) * | 2005-02-18 | 2007-11-27 | Praxair Technology, Inc. | Cryogenic rectification system for neon production |
| US9714789B2 (en) * | 2008-09-10 | 2017-07-25 | Praxair Technology, Inc. | Air separation refrigeration supply method |
| US20130086941A1 (en) * | 2011-10-07 | 2013-04-11 | Henry Edward Howard | Air separation method and apparatus |
| CN111650979B (zh) * | 2020-05-11 | 2022-02-15 | 万华化学集团股份有限公司 | 采出流量调节方法、存储介质及电子设备 |
| EP3992560A1 (de) * | 2021-05-27 | 2022-05-04 | Linde GmbH | Verfahren zum auslegen einer tieftemperaturzerlegungsanlage mit argonproduktion |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4817394A (en) * | 1988-02-02 | 1989-04-04 | Erickson Donald C | Optimized intermediate height reflux for multipressure air distillation |
| EP0383994A3 (de) * | 1989-02-23 | 1990-11-07 | Linde Aktiengesellschaft | Verfahren und Vorrichtung zur Luftzerlegung durch Rektifikation |
| GB9304710D0 (en) * | 1993-03-08 | 1993-04-28 | Boc Group Plc | Air separation |
| US5365741A (en) * | 1993-05-13 | 1994-11-22 | Praxair Technology, Inc. | Cryogenic rectification system with liquid oxygen boiler |
| US5398514A (en) * | 1993-12-08 | 1995-03-21 | Praxair Technology, Inc. | Cryogenic rectification system with intermediate temperature turboexpansion |
| GB9405072D0 (en) * | 1994-03-16 | 1994-04-27 | Boc Group Plc | Air separation |
| GB9410686D0 (en) * | 1994-05-27 | 1994-07-13 | Boc Group Plc | Air separation |
| US5440884A (en) * | 1994-07-14 | 1995-08-15 | Praxair Technology, Inc. | Cryogenic air separation system with liquid air stripping |
| GB9425484D0 (en) * | 1994-12-16 | 1995-02-15 | Boc Group Plc | Air separation |
| US5655388A (en) * | 1995-07-27 | 1997-08-12 | Praxair Technology, Inc. | Cryogenic rectification system for producing high pressure gaseous oxygen and liquid product |
| GB9521782D0 (en) * | 1995-10-24 | 1996-01-03 | Boc Group Plc | Air separation |
| GB9521996D0 (en) * | 1995-10-27 | 1996-01-03 | Boc Group Plc | Air separation |
| GB9609099D0 (en) * | 1996-05-01 | 1996-07-03 | Boc Group Plc | Oxygen steelmaking |
| GB9619718D0 (en) * | 1996-09-20 | 1996-11-06 | Boc Group Plc | Air separation |
| GB9623519D0 (en) * | 1996-11-11 | 1997-01-08 | Boc Group Plc | Air separation |
| GB9711258D0 (en) * | 1997-05-30 | 1997-07-30 | Boc Group Plc | Air separation |
-
1998
- 1998-04-14 US US09/059,263 patent/US5878597A/en not_active Expired - Lifetime
-
1999
- 1999-01-28 ID IDP990062A patent/ID22402A/id unknown
- 1999-02-03 KR KR1019990003502A patent/KR19990082696A/ko not_active Ceased
- 1999-02-04 EP EP99102234A patent/EP0952416A3/en not_active Withdrawn
- 1999-02-04 CA CA002260722A patent/CA2260722C/en not_active Expired - Fee Related
- 1999-02-04 BR BR9900541-7A patent/BR9900541C1/pt not_active IP Right Cessation
- 1999-02-04 CN CN99101866A patent/CN1122810C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0952416A3 (en) | 2000-04-12 |
| CN1232166A (zh) | 1999-10-20 |
| BR9900541C1 (pt) | 2000-06-06 |
| EP0952416A2 (en) | 1999-10-27 |
| ID22402A (id) | 1999-10-14 |
| US5878597A (en) | 1999-03-09 |
| CN1122810C (zh) | 2003-10-01 |
| KR19990082696A (ko) | 1999-11-25 |
| CA2260722C (en) | 2002-11-26 |
| CA2260722A1 (en) | 1999-10-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4596588A (en) | Selected methods of reflux-hydrocarbon gas separation process | |
| US4453958A (en) | Greater design capacity-hydrocarbon gas separation process | |
| BR9812261A (pt) | Processo para separação de constituintes de gás de hidrocarbonetos. | |
| MY128321A (en) | Removing carbon dioxide, ethane and heavier components from a natural gas | |
| BR9900966A (pt) | Processo e aparelho para a produção de produto gasoso e líquido a partir de uma instalação de separação criogênica de ar. | |
| GEP20012499B (en) | Method and Device for Hydrocarbon Gas Processing | |
| KR900017631A (ko) | 크로마토 그래픽 분리방법 | |
| BR0101112A (pt) | Processo para a produção de oxigênio lìquido por retificação criogênica de ar de alimentação | |
| MY113327A (en) | Hydrocarbon gas processing | |
| MY121829A (en) | Cyclonic evaporator | |
| CO5100989A1 (es) | Un proceso para separar una corriente de alimentacion multicomponente presurizada empleando destilacion | |
| AU5833286A (en) | Product recovery method for an aromatic hydrocarbon alkylation process | |
| KR960040429A (ko) | 통합된 공기 분리 방법 | |
| BR9901142A (pt) | Processo para a realização de retificação criogenica de ar de alimentação para a produção de oxigenio, e, aparelhagem para a relizaçao de retificaçao criogenica de ar de alimentação para a produção de oxigenio produto | |
| CA2271667A1 (en) | Method and apparatus for controlling condensation of gaseous hydrocarbon stream | |
| BR9900541A (pt) | Processo e aparelho para realizar a retificação, criogênica de ar de alimentação. | |
| TW429301B (en) | Process and apparatus for the low-temperature fractionation of air | |
| CA2250123A1 (en) | Aromatics and/or heavies removal from a methane-based feed by condensation and stripping | |
| FR2728663B1 (fr) | Procede de separation d'un melange gazeux par distillation cryogenique | |
| MY108766A (en) | Device for counter-currently contacting gas and liquid | |
| BR9802608A (pt) | Processo para a separação de ar por meio de retificação criogênica | |
| MY115081A (en) | Air separation ,method and apparatus | |
| MY107117A (en) | Separation of air. | |
| DE69822445D1 (de) | Chromatographischer trennprozess | |
| MY118100A (en) | Apparatus and method for producing nitrogen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FF | Decision: intention to grant | ||
| FG9A | Patent or certificate of addition granted | ||
| B24C | Patent annual fee: request for for restoration |
Free format text: REFERENTE A 6A,7A,8A,9A E 10A ANUIDADES. |
|
| B24H | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi) | ||
| B24F | Patent annual fee: publication cancelled |
Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2257 DE 08/04/2014 POR TER SIDO INDEVIDA. |
|
| B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE AS 6A, 7A, 8A, 9A E 10A ANUIDADES. |
|
| B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |