ES2292231T3 - Instalacion combinada de un horno y de un aparato de destilacion de aire y procedimiento de puesta en practica. - Google Patents
Instalacion combinada de un horno y de un aparato de destilacion de aire y procedimiento de puesta en practica. Download PDFInfo
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- ES2292231T3 ES2292231T3 ES99900984T ES99900984T ES2292231T3 ES 2292231 T3 ES2292231 T3 ES 2292231T3 ES 99900984 T ES99900984 T ES 99900984T ES 99900984 T ES99900984 T ES 99900984T ES 2292231 T3 ES2292231 T3 ES 2292231T3
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- 238000004821 distillation Methods 0.000 title claims abstract description 11
- 238000009434 installation Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims description 7
- 238000002156 mixing Methods 0.000 claims abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000004887 air purification Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
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- 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
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04109—Arrangements of compressors and /or their drivers
- F25J3/04139—Combination of different types of drivers mechanically coupled to the same compressor, possibly split on multiple compressor casings
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
-
- 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
- F25J3/04012—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling
- F25J3/04024—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of warm gaseous streams; details of intake or interstage cooling of purified feed air, so-called boosted air
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- 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
- F25J3/04109—Arrangements of compressors and /or their drivers
- F25J3/04115—Arrangements of compressors and /or their drivers characterised by the type of prime driver, e.g. hot gas expander
- F25J3/04133—Electrical motor as the prime mechanical driver
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- 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
- F25J3/04303—Lachmann expansion, i.e. expanded into oxygen producing or low pressure column
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- 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.
- F25J3/04381—Details relating to the work expansion, e.g. process parameter etc. using work extraction by mechanical coupling of compression and expansion so-called companders
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- 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
- F25J3/0446—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 the heat generated by mixing two different phases
- F25J3/04466—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 the heat generated by mixing two different phases for producing oxygen as a mixing column overhead gas by mixing gaseous air feed and liquid oxygen
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- 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
- F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
- F25J3/04527—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general
- F25J3/04551—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the metal production
- F25J3/04557—Integration with an oxygen consuming unit, e.g. glass facility, waste incineration or oxygen based processes in general for the metal production for pig iron or steel making, e.g. blast furnace, Corex
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- 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
- F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
- F25J3/04593—The air gas consuming unit is also fed by an air stream
- F25J3/046—Completely integrated air feed compression, i.e. common MAC
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- 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
- F25J3/04521—Coupling of the air fractionation unit to an air gas-consuming unit, so-called integrated processes
- F25J3/04612—Heat exchange integration with process streams, e.g. from the air gas consuming unit
- F25J3/04618—Heat exchange integration with process streams, e.g. from the air gas consuming unit for cooling an air stream fed to the air fractionation unit
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- 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
- F25J2200/04—Processes or apparatus using separation by rectification in a dual pressure main column system
- F25J2200/06—Processes or apparatus using separation by rectification in a dual pressure main column system in a classical double column flow-sheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
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- 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
- F25J2235/00—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams
- F25J2235/50—Processes or apparatus involving steps for increasing the pressure or for conveying of liquid process streams the fluid being oxygen
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S62/00—Refrigeration
- Y10S62/915—Combustion
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Separation By Low-Temperature Treatments (AREA)
- Processing Of Solid Wastes (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Duct Arrangements (AREA)
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Abstract
Instalación combinada que comprende al menos un horno (FM) alimentado con aire comprimido por al menos un soplador (S), y al menos un aparato de destilación de aire alimentado al menos en parte por el soplador (S) y que suministra el oxígeno (O) al horno, el aparato comprendiendo al menos una columna de presión media (MP) que recibe el aire a la presión (P1) del soplador y al menos una turbina criogénica (T) que expande una parte de este aire proveniente del soplador, y una columna de mezclado (CM) que suministra dicho oxígeno y que recibe el aire proveniente del soplador super-comprimido por un super-compresor (C) acoplado a la turbina (T), caracterizado porque el conjunto super-compresor/turbina criogénica (C-T) está acoplado a al menos un motor de asistencia auxiliar (EM).
Description
Instalación combinada de un horno y de un
aparato de destilación de aire y procedimiento de puesta en
práctica.
La presente invención concierne a las
instalaciones combinadas con al menos un horno, típicamente un
horno de tratamiento de metal, alimentado con aire comprimido por
al menos un soplador, y por al menos un aparato de destilación de
aire, alimentado al menos en parte por dicho soplador y que
proporciona el oxígeno al horno, el aparato comprendiendo al menos
una columna de presión media que recibe el aire a la presión del
soplador y al menos una turbina criogénica que expande una parte de
ese aire proveniente del soplador, y una columna de mezclado que
suministra dicho oxígeno y que recibe el aire proveniente del
soplador super-comprimido por un
super-compresor acoplado a la turbina.
Una instalación de este tipo es descrita en el
documento US-A-5-244
489 (Grenier), al cual se podrá referir para más detalles. En este
documento el super-compresor de aire suministrado a
la columna de mezclado es impulsado por una turbina de
mantenimiento en frío que expande la parte del flujo de aire
dirigido a la columna de presión media, en una disposición
considerable para efectuar la super-compresión
necesaria, agitar una parte importante del aire de alimentación de
la columna de presión media provocando pérdidas del rendimiento de
extracción y de energía así como sobre dimensionamientos de los
puestos de refrigeración y de depuración del aire de alimentación
del aparato de destilación.
La presente invención tiene como objeto proponer
una instalación combinada del tipo mencionado más arriba, que
permite costos de explotación reducidos y con una mayor
flexibilidad en la selección de los intervalos de
funcionamiento.
Para hacer esto, según una característica de la
invención, el conjunto super-compresor/turbina
criogénica es acoplado a al amenos un motor de asistencia auxiliar,
típicamente eléctrico.
La presente invención tiene igualmente como
objeto proponer un procedimiento de realización de este tipo de
instalación combinada según la reivindicación 3.
Según una característica más particular de la
invención, la asistencia es aportada por un motor eléctrico
acoplado al árbol del conjunto
super-compresor/turbina.
La asistencia a los conjuntos compresor/turbina
es conocida desde hace algunos años, en particular para asistir
los turbo-compresores de motores de combustión
interna (cf US-A-4 485 310, de
Valroger o más recientemente,
US-A-5 560 208, Halimi y otros, con
asistencia eléctrica, o US-A-4 622
817, Kobayashi, con asistencia hidráulica). El estado de la técnica
no enseña para nada las aplicaciones de alimentación de aparatos de
destilación según la presente invención.
Otras características y ventajas de la presente
invención resultarán de la descripción siguiente de un modo de
realización, dado a título ilustrativo pero no limitativo, hecho
con relación al dibujo anexo en el cual:
la figura 1 es una vista esquemática de una
instalación combinada según la invención.
En la figura 1, se ha representado
esquemáticamente un horno de tratamiento de metal, en este caso un
alto horno (FM), y un aparato de destilación de aire asociado que
comprende esencialmente, en el ejemplo representado, una línea de
intercambio principal LE, una doble columna con una columna de
presión media MP y una columna de baja presión BP, y una columna de
mezclado CM.
De la parte superior de la columna de mezclado
CM por una línea O el oxígeno de mediana pureza que, según la
invención, después de atravesar la línea de intercambio LE,
desemboca en la línea de aire comprimido principal por encima del
horno FM para enriquecer con oxígeno el aire suministrado a este
último. Clásicamente, de la parte superior de la columna de baja
presión BP parte una línea de nitrógeno impuro N_{i}. En una
variante, en el ejemplo representado, la columna de baja presión BP
es rebasada con un minarete M que utiliza como reflujo el nitrógeno
líquido proveniente de la columna MP y produce en su parte de
arriba el nitrógeno puro evacuado por una línea N_{p} para una
utilización en el lugar o en las cercanías de éste último.
El horno FM y el aparato de destilación son
alimentados con aire por un mismo soplador S que suministra en una
línea de aire comprimido principal A que alimenta al menos el horno
FM con un fuerte volumen de aire (superior típicamente a 100 000
Nm^{3}/h) bajo una presión media P_{1} inferior a 6 x 10^{5}
Pa, típicamente entre 3 x 10^{5} Pa y 5,5 x 10^{5} Pa. La línea
A puede igualmente alimentar, de manara simultánea o alterna, otro
horno de tratamiento de metal, por ejemplo un horno eléctrico con
el procedimiento AOD. De la línea principal A parte un circuito de
derivación de aire D que alimenta el aparato de destilación con
aire enfriado y luego depurado en un aparato de depuración E,
típicamente del tipo por adsorción. Por debajo de este aparato de
depuración E, el circuito D se divide en una primera línea J de
alimentación de la doble columna y una segunda línea L de
alimentación de aire de la columna de mezcla CM.
\newpage
Según un aspecto de la invención, una parte del
flujo de aire en la línea J es derivada en la línea de intercambio
LE y agitado en una turbina criogénica T para ser introducido en la
columna de baja presión BP a baja presión de esta última. La
turbina T está acoplada a un super-compresor C
dispuesto en la línea L para super-comprimir el
aire proveniente del soplador y dirigirlo a la columna de mezclado
CM a una presión P_{2} superior a la presión P_{1} de al menos
0,3 x 10^{5} Pa e inferior a 1,5 x 10^{5} Pa, típicamente
comprendida entre 0,4 x 10^{5} Pa y 0,8 x 10^{5} Pa. Según un
aspecto de la invención, el conjunto
super-compresor/turbina C-T es
asistido por al menos un motor EM acoplado a la línea del árbol del
conjunto C-T. El motor EM es de un tipo eléctrico o
hidráulico, tales como los descritos en los documentos antes
mencionados. En la práctica, la energía pico es del orden de 30 a
500 kW, según las características de la instalación combinada y
siendo inversamente correlacionada a la presión expedida por el
soplador S.
Aunque la presente invención haya sido descrita
con relación a un modo de realización particular, no se encuentra
limitada sino por el contrario es susceptible de modificaciones y
de variantes que aparecerán al hombre del arte permaneciendo dentro
del marco de las reivindicaciones a continuación.
Claims (5)
1. Instalación combinada que comprende al menos
un horno (FM) alimentado con aire comprimido por al menos un
soplador (S), y al menos un aparato de destilación de aire
alimentado al menos en parte por el soplador (S) y que suministra
el oxígeno (O) al horno, el aparato comprendiendo al menos una
columna de presión media (MP) que recibe el aire a la presión
(P_{1}) del soplador y al menos una turbina criogénica (T) que
expande una parte de este aire proveniente del soplador, y una
columna de mezclado (CM) que suministra dicho oxígeno y que recibe
el aire proveniente del soplador super-comprimido
por un super-compresor (C) acoplado a la turbina
(T), caracterizado porque el conjunto
super-compresor/turbina criogénica
(C-T) está acoplado a al menos un motor de
asistencia auxiliar (EM).
2. Instalación según la reivindicación 1,
caracterizado porque el motor de asistencia comprende al
menos un motor eléctrico (EM).
3. Procedimiento de realización de una
instalación combinada que comprende al menos un horno (FM)
alimentado con aire comprimido por al menos un soplador (S) que
suministra el aire a una primera presión (P_{1}) y con oxígeno
por al menos un aparato de separación de aire, que comprende al
menos una columna de presión media (MP)y una columna de
mezclado (CM), alimentada con aire al menos en parte por el
soplador (S), en el cual la columna de mezclado es alimentada con
aire proveniente del soplador (S) y
super-comprimido por un
super-compresor (C) acoplado a al menos una turbina
criogénica (T) que expande una parte del aire de alimentación del
aparato de destilación, caracterizado porque comprende la
etapa de aportar al conjunto
super-compresor/turbina una energía de asistencia
para mantener en la columna de mezclado (CM) una
super-compresión comprendida entre aproximadamente
0,4 x 10^{5} Pa y 0,8 x 10^{5} Pa con relación a la presión
(P_{1}) de salida del soplador.
4. Procedimiento según la reivindicación 3,
caracterizado porque la energía de asistencia es una energía
eléctrica.
5. Procedimiento según la reivindicación 4,
caracterizado porque la energía de asistencia está
comprendida entre 30 y 500 kw.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9800723 | 1998-01-23 | ||
FR9800723A FR2774158B1 (fr) | 1998-01-23 | 1998-01-23 | Installation combinee d'un four et d'un appareil de distillation d'air et procede de mise en oeuvre |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2292231T3 true ES2292231T3 (es) | 2008-03-01 |
Family
ID=9522093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES99900984T Expired - Lifetime ES2292231T3 (es) | 1998-01-23 | 1999-01-22 | Instalacion combinada de un horno y de un aparato de destilacion de aire y procedimiento de puesta en practica. |
Country Status (13)
Country | Link |
---|---|
US (1) | US6122932A (es) |
EP (1) | EP0970336B1 (es) |
JP (1) | JP2001516439A (es) |
KR (1) | KR100567646B1 (es) |
CN (1) | CN1255967A (es) |
AT (1) | ATE372493T1 (es) |
AU (1) | AU740591B2 (es) |
BR (1) | BR9904783A (es) |
CA (1) | CA2284167C (es) |
DE (1) | DE69937022T2 (es) |
ES (1) | ES2292231T3 (es) |
FR (1) | FR2774158B1 (es) |
WO (1) | WO1999037963A1 (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2782154B1 (fr) * | 1998-08-06 | 2000-09-08 | Air Liquide | Installation combinee d'un appareil de production de fluide de l'air et d'une unite dans laquelle se produit une reaction chimique et procede de mise en oeuvre |
US6192707B1 (en) * | 1999-11-12 | 2001-02-27 | Praxair Technology, Inc. | Cryogenic system for producing enriched air |
US6282901B1 (en) | 2000-07-19 | 2001-09-04 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Integrated air separation process |
EP1197717A1 (en) * | 2000-10-12 | 2002-04-17 | Linde Aktiengesellschaft | Process and apparatus for air separation |
FR2862004B3 (fr) * | 2003-11-10 | 2005-12-23 | Air Liquide | Procede et installation d'enrichissement d'un flux gazeux en l'un de ses constituants |
FR2862128B1 (fr) * | 2003-11-10 | 2006-01-06 | Air Liquide | Procede et installation de fourniture d'oxygene a haute purete par distillation cryogenique d'air |
FR2864214B1 (fr) * | 2003-12-22 | 2017-04-21 | Air Liquide | Appareil de separation d'air, appareil integre de separation d'air et de production d'un metal et procede de demarrage d'un tel appareil de separation d'air |
DE102006039616B3 (de) * | 2006-08-24 | 2008-04-03 | Eberhard Otten | Verfahren und Vorrichtung zur Speicherung von Brenngas, insbesondere Erdgas |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2504992B1 (fr) * | 1981-04-30 | 1986-11-14 | Valbrev | Combinaison d'une turbo-machine de compression ou de detente et d'un moteur electrique |
FR2677667A1 (fr) * | 1991-06-12 | 1992-12-18 | Grenier Maurice | Procede d'alimentation d'un haut-fourneau en air enrichi en oxygene, et installation de reduction de minerai de fer correspondante. |
GB9208647D0 (en) * | 1992-04-22 | 1992-06-10 | Boc Group Plc | Air separation |
US5582036A (en) * | 1995-08-30 | 1996-12-10 | Praxair Technology, Inc. | Cryogenic air separation blast furnace system |
-
1998
- 1998-01-23 FR FR9800723A patent/FR2774158B1/fr not_active Expired - Fee Related
-
1999
- 1999-01-22 KR KR1019997008476A patent/KR100567646B1/ko not_active IP Right Cessation
- 1999-01-22 JP JP53798899A patent/JP2001516439A/ja not_active Ceased
- 1999-01-22 ES ES99900984T patent/ES2292231T3/es not_active Expired - Lifetime
- 1999-01-22 DE DE69937022T patent/DE69937022T2/de not_active Expired - Lifetime
- 1999-01-22 AU AU20618/99A patent/AU740591B2/en not_active Ceased
- 1999-01-22 AT AT99900984T patent/ATE372493T1/de not_active IP Right Cessation
- 1999-01-22 CA CA002284167A patent/CA2284167C/fr not_active Expired - Fee Related
- 1999-01-22 BR BRPI9904783-7A patent/BR9904783A/pt not_active IP Right Cessation
- 1999-01-22 EP EP99900984A patent/EP0970336B1/fr not_active Expired - Lifetime
- 1999-01-22 CN CN99800050A patent/CN1255967A/zh active Pending
- 1999-01-22 US US09/236,270 patent/US6122932A/en not_active Expired - Lifetime
- 1999-01-22 WO PCT/FR1999/000128 patent/WO1999037963A1/fr active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP0970336A1 (fr) | 2000-01-12 |
AU740591B2 (en) | 2001-11-08 |
FR2774158B1 (fr) | 2000-03-17 |
JP2001516439A (ja) | 2001-09-25 |
DE69937022T2 (de) | 2008-05-29 |
CN1255967A (zh) | 2000-06-07 |
DE69937022D1 (de) | 2007-10-18 |
BR9904783A (pt) | 2000-03-08 |
ATE372493T1 (de) | 2007-09-15 |
AU2061899A (en) | 1999-08-09 |
KR100567646B1 (ko) | 2006-04-05 |
EP0970336B1 (fr) | 2007-09-05 |
KR20000076374A (ko) | 2000-12-26 |
CA2284167C (fr) | 2008-04-15 |
US6122932A (en) | 2000-09-26 |
FR2774158A1 (fr) | 1999-07-30 |
WO1999037963A1 (fr) | 1999-07-29 |
CA2284167A1 (fr) | 1999-07-29 |
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