BR8302646A - Processo de separacao de ar por retificacao - Google Patents

Processo de separacao de ar por retificacao

Info

Publication number: BR8302646A
Authority: BR; Brazil
Prior art keywords: rectification; separation process; air separation; air; separation
Prior art date: 1982-05-25

Application number

BR8302646A

Other languages

English (en)

Inventor

Ravindra Fulchand Pahade

Original Assignee

Union Carbide Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1982-05-25

Filing date

1983-05-20

Publication date

1984-01-17

1983-05-20 Application filed by Union Carbide Corp filed Critical Union Carbide Corp

1984-01-17 Publication of BR8302646A publication Critical patent/BR8302646A/pt

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
- 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
- F25J3/04309—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 nitrogen
- 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
- F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
- 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
- F25J2200/00—Processes or apparatus using separation by rectification
- F25J2200/50—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column
- F25J2200/52—Processes or apparatus using separation by rectification using multiple (re-)boiler-condensers at different heights of the column in the high pressure column of a double pressure main column system
- 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/24—Processes or apparatus using other separation and/or other processing means using regenerators, cold accumulators or reversible heat exchangers
- 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
- F25J2245/42—Processes or apparatus involving steps for recycling of process streams the recycled stream being nitrogen

Landscapes

Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Mechanical Engineering (AREA)
Thermal Sciences (AREA)
General Engineering & Computer Science (AREA)
Separation By Low-Temperature Treatments (AREA)

BR8302646A 1982-05-25 1983-05-20 Processo de separacao de ar por retificacao BR8302646A (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/381,844 US4416677A (en)	1982-05-25	1982-05-25	Split shelf vapor air separation process

Publications (1)

Publication Number	Publication Date
BR8302646A true BR8302646A (pt)	1984-01-17

Family

ID=23506599

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR8302646A BR8302646A (pt)	1982-05-25	1983-05-20	Processo de separacao de ar por retificacao

Country Status (2)

Country	Link
US (1)	US4416677A (pt)
BR (1)	BR8302646A (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4902321A (en) *	1989-03-16	1990-02-20	Union Carbide Corporation	Cryogenic rectification process for producing ultra high purity nitrogen
US5006137A (en) *	1990-03-09	1991-04-09	Air Products And Chemicals, Inc.	Nitrogen generator with dual reboiler/condensers in the low pressure distillation column
US5074898A (en) *	1990-04-03	1991-12-24	Union Carbide Industrial Gases Technology Corporation	Cryogenic air separation method for the production of oxygen and medium pressure nitrogen
US5170630A (en) *	1991-06-24	1992-12-15	The Boc Group, Inc.	Process and apparatus for producing nitrogen of ultra-high purity

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2762208A (en) *	1952-12-19	1956-09-11	Air Reduction	Separation of the constituents of air
US2785548A (en) *	1954-05-26	1957-03-19	Linde Eismasch Ag	Process for the production of liquid oxygen by separation from air
DE1226616B (de) *	1961-11-29	1966-10-13	Linde Ag	Verfahren und Einrichtung zur Gewinnung von gasfoermigem Drucksauerstoff mit gleichzeitiger Erzeugung fluessiger Zerlegungsprodukte durch Tieftemperatur-Luftzerlegung
US3319427A (en) *	1964-05-06	1967-05-16	Hydrocarbon Research Inc	Air separation with a nitrogen refrigeration circuit
US3340697A (en) *	1964-05-06	1967-09-12	Hydrocarbon Research Inc	Heat exchange of crude oxygen and expanded high pressure nitrogen
US3375673A (en) *	1966-06-22	1968-04-02	Hydrocarbon Research Inc	Air separation process employing work expansion of high and low pressure nitrogen
US3605422A (en) *	1968-02-28	1971-09-20	Air Prod & Chem	Low temperature frocess for the separation of gaseous mixtures
DE2335096C2 (de) *	1973-07-10	1982-03-18	Linde Ag, 6200 Wiesbaden	Verfahren und Vorrichtung zur Gewinnung von gasförmigem Sauerstoff und gasförmigem Stickstoff

1982
- 1982-05-25 US US06/381,844 patent/US4416677A/en not_active Expired - Fee Related
1983
- 1983-05-20 BR BR8302646A patent/BR8302646A/pt not_active IP Right Cessation

Also Published As

Publication number	Publication date
US4416677A (en)	1983-11-22

Publication	Publication Date	Title
BR8500742A (pt)	1985-10-08	Processo para preparacao de ar para separacao por retificacao
BR8305811A (pt)	1984-05-29	Processo de hidroformilacao
BR8506401A (pt)	1986-09-02	Processo integrado de separacao gasosa
BR8302315A (pt)	1984-01-03	Processo de hidrocraqueamento
BR8202528A (pt)	1983-04-19	Processo de separacao por adsorcao
IT1160169B (it)	1987-03-04	Processo per la idrocianurazione di olefine
BR8108800A (pt)	1982-08-10	Processo de separacao termicamente ativada
BR8101427A (pt)	1981-09-22	Processo de flotacao
BR8305216A (pt)	1984-05-02	Processo para a preparacao de cloridrato de p - nitrosedifenilamina
IT1121298B (it)	1986-04-02	Processo per la separazione di olefine
BR8300674A (pt)	1983-11-08	Processo de preparacao do polivinilbutiral
BR8402701A (pt)	1985-05-07	Processo de separacao de ar
BR8302646A (pt)	1984-01-17	Processo de separacao de ar por retificacao
BR8304023A (pt)	1984-03-07	Processo de caustificacao
BR8101680A (pt)	1981-09-22	Processo de preparacao de malation
IT1141109B (it)	1986-10-01	Processo per la preparazione di amine secondarie
IT1155357B (it)	1987-01-28	Processo per la preparazione della kentanserina
BR8304243A (pt)	1984-03-13	Processo de calcinacao de material selenifero
BR8403601A (pt)	1985-06-25	Processo de separacao de ar
BR8403589A (pt)	1985-06-25	Processo de separacao de ar
IT1193677B (it)	1988-07-21	Processo per preparare 3,3'-diammino-difenilsolfoni
IT1141264B (it)	1986-10-01	Processo per la purificazione di glicosaminoglicani
IT1109775B (it)	1985-12-23	Processo per la separazione di amine
BR8302466A (pt)	1984-01-17	Processo de reducao direta a gas
BR8205310A (pt)	1984-04-17	Processo de retificacao por abrasao

Legal Events

Date	Code	Title	Description
1995-04-25	MM	Lapse due to non-payment of fees (art. 50)