EP0932006A1 - Installation combinée d'un four et d'un appareil de distillation d'air et procédé de mise en oeuvre - Google Patents
Installation combinée d'un four et d'un appareil de distillation d'air et procédé de mise en oeuvre Download PDFInfo
- Publication number
- EP0932006A1 EP0932006A1 EP99400150A EP99400150A EP0932006A1 EP 0932006 A1 EP0932006 A1 EP 0932006A1 EP 99400150 A EP99400150 A EP 99400150A EP 99400150 A EP99400150 A EP 99400150A EP 0932006 A1 EP0932006 A1 EP 0932006A1
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- EP
- European Patent Office
- Prior art keywords
- air
- column
- compressor
- supplied
- line
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000000926 separation method Methods 0.000 title description 2
- 238000002156 mixing Methods 0.000 claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 19
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000004821 distillation Methods 0.000 claims abstract description 15
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 239000003570 air Substances 0.000 claims 23
- 239000012080 ambient air Substances 0.000 claims 2
- 238000004140 cleaning Methods 0.000 claims 2
- 238000007664 blowing Methods 0.000 abstract 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 239000002184 metal Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 210000001944 turbinate Anatomy 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- 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
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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
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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
- F25J3/04012—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
- F25J3/04018—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 main feed 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
- F25J3/04012—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
- F25J3/04121—Steam turbine 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
- F25J3/04006—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
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04109—Arrangements of compressors and /or their drivers
- F25J3/04145—Mechanically coupling of different compressors of the air fractionation process to the same driver(s)
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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
- F25J3/0446—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
- F25J3/04606—Partially integrated air feed compression, i.e. independent MAC for the air fractionation unit plus additional air feed from the air gas consuming 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
- F25J2205/00—Processes or apparatus using other separation and/or other processing means
- F25J2205/60—Processes or apparatus using other separation and/or other processing means using adsorption on solid adsorbents, e.g. by temperature-swing adsorption [TSA] at the hot or cold end
- F25J2205/62—Purifying more than one feed stream in multiple adsorption vessels, e.g. for two feed streams at different pressures
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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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- 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
- F25J2245/40—Processes or apparatus involving steps for recycling of process streams the recycled stream being air
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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
Definitions
- the present invention relates to combined installations comprising at least one oven, typically a metal processing oven, supplied with compressed air, and at least one air distillation apparatus producing oxygen to enrich the air supplied to the oven, as well as the processes for implementing such combined installations.
- document EP-A-0 531 182 provides for a separation complete air supply a) blast furnace, b) column medium pressure and c) of the mixing column using separate compression means to, in particular, allow production, in the mixing column, impure oxygen at high pressures or low, in an expensive arrangement in terms of investment and operating rotating machines and considering no synergy between these last.
- the object of the present invention is to provide an installation combined and a method of implementing such an installation combined with extremely deep integration and allowing operating costs significantly reduced while offering flexibility in the selection of ranges Operating.
- the method of implementing a combined installation is of the type comprising at least one oven supplied with air by at least one blower supplying air at a first pressure P 1 and oxygen by at least one air distillation apparatus comprising at least one medium pressure column supplied with air at least partially by the blower of the oven, and a mixing column supplying oxygen to the oven, and in which the column of the mixture is supplied with air by a compressor supplying air at a pressure P 2 greater than P 1 .
- the column medium pressure is supplied only by compressed air supplied by the blower from the oven.
- the middle column pressure is also supplied by compressed air supplied by at least one compressor stage on the same shaft line as the compressor feeding the mixing column.
- the present invention also relates to a combined installation comprising at least one oven, at least one blower delivering in a line main compressed air connected to the oven, at least one distillation apparatus of air comprising at least one medium pressure column and one mixture having an oxygen outlet line opening into a downstream part from the main compressed air line, a bypass line from the line main compressed air supplying air to at least the middle column pressure, and at least one air compressor supplying pressurized air to at least the mixing column.
- the distillation apparatus exploits part of the flow air from the differentiable blower due to the subsequent reinjection of oxygen in this air flow while making the most of the possibilities offered by the mixing column by selecting by choice of compressor - and inter-column liquid pump - the optimal oxygen pressure for reinjection into the blower wind.
- Figures 1 and 2 are two embodiments of a combined installation according to the invention.
- a treatment furnace of metal in this case a blast furnace F
- an air distillation apparatus partner comprising essentially, in the examples shown, a line LE main exchange, a double DC column with a medium column pressure MP and a low pressure column BP, and a mixing column CM.
- the oven F is supplied with air by a blower S discharging into a main compressed air line A with a large volume of air (typically greater than 100,000 Nm 3 / h) under a medium pressure P 1 not exceeding 5, 8 x 10 5 Pa, typically between 3 x 10 5 Pa and 5.5 x 10 5 Pa.
- Line A can also supply, simultaneously or alternately, another metal treatment oven, for example an electric oven with the AOD process.
- the medium pressure column MP is supplied, in a tank, with air substantially at the pressure P 1 for supplying the blower F by a line D derived from the main line A and successively passing through a cooling device R, a purification device E 1 , typically of the adsorption type, then the main exchange line LE.
- the mixing column CM is, for its part, supplied with tank, air under pressure P 2 by a line L supplied with air under pressure by a dedicated compressor C driven by a motor M, the air supplied by this compressor C being purified in a second purification device E 2 , also typically of the adsorption type, before crossing the LE exchange line.
- the pressure P 2 is chosen to be slightly higher than the pressure P 1 in line A to take account of the pressure drops in the air distillation apparatus, in the hot air / oxygen mixing devices downstream of line A and to optimize the regulation of this oxygen injection.
- P 2 - P 1 is between 0.3 x 10 5 Pa and 4 x 10 5 Pa, advantageously between 0.5 x 10 5 Pa and 1.5 x 10 5 Pa.
- part of the air flow in line D is diverted to the low pressure column BP by being turbinated in a turbine t serving in particular for keeping the apparatus cold.
- the motor M for driving the compressor C supplying the mixing column CM is for example an electric motor advantageously exploiting the electrical energy produced on site by a cogeneration installation, or a turbine exploiting a pressurized fluid available on the site.
- the turbine t is advantageously coupled to a booster c to overpress a compressed fluid from the installation, typically the flow of purified air in line L, in order to optimize the investment for the dedicated compressor C and / or the power supplied. by the motor M.
- a line l is provided, provided with an expansion member, between the downstream parts of the lines D and L for send, at least temporarily, part of the flow in line L to the medium pressure column MP, thus complementing the flow taken in line A of the blower.
- the compressor C delivering in line L compresses a flow of air derived, in a bypass line B, from line D supplying the medium pressure column MP, downstream of the purification device E 1 .
- an additional air flow substantially at the pressure P 1 , is introduced into this line D, upstream of the cooling device R, by a line G coming from an upstream stage (here second stage EC 2 ) of a line of compressors GC on the same shaft line of which is mounted the compressor C supplying the mixing column CM.
- the compressor line EC i - C is advantageously driven by a turbine T expanding a pressurized fluid F l available on the site, typically water vapor.
- the pressure at the outlet of the compressor C can be chosen to be higher than the pressure required P2 for the mixing column, the air at the outlet of this compressor C can be turbinated up to the pressure P 2 in the turbine t which can thus be used to drive a booster c used to boost one of the fluids entering or leaving the distillation apparatus, for example, as shown in Figure 2, the impure nitrogen in the line N to assist in the recovery of this impure nitrogen, for example by introducing it as ballast into the combustion chamber of a gas turbine group exploiting a combustible gas transformed from a waste gas from the furnace F.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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Abstract
Description
les figures 1 et 2 sont deux modes de réalisation d'une installation combinée selon l'invention.
Claims (16)
- Procédé de mise en oeuvre d'une installation combinée comprenant au moins un four (F) alimenté en air par au moins une soufflante (S) fournissant de l'air à une première pression P1 et en oxygène par au moins un appareil de distillation d'air comprenant au moins une colonne moyenne pression (MP) alimentée en air au moins partiellement par la soufflante du four, et une colonne de mélange (CM) fournissant l'oxygène au four, dans lequel la colonne de mélange est alimentée en air à une pression P2 supérieure à P1 par un compresseur (C).
- Procédé selon la revendication 1, caractérisé en ce que la pression P1 n'excède pas 5,8 x 105 Pa.
- Procédé selon la revendication 1 ou la revendication 2, caractérisé en ce que P2 - P1 est supérieur à 0,3 x 105 Pa.
- Procédé selon la revendication 3, caractérisé en ce que P2 - P1 n'excède pas 4 x 105 Pa.
- Procédé selon l'une des revendications précédentes, caractérisé en ce que la colonne moyenne pression (MP) est alimentée uniquement par de l'air comprimé fourni par la soufflante (S).
- Procédé selon l'une des revendications 1 à 4, caractérisé en ce que la colonne moyenne pression (MP) est alimentée également par de l'air comprimé fourni par au moins un étage (ECi) de compresseur sur une même ligne d'arbre que ledit compresseur (C).
- Procédé selon la revendication 6, caractérisé en ce que le compresseur (C) comprime un flux d'air dérivé du flux d'alimentation de la colonne moyenne pression (MP).
- Procédé selon l'une des revendications 1 à 7, caractérisé en ce que le compresseur (C) est entraíné par détente (T) d'au moins un fluide sous pression (Fl) disponible sur site.
- Procédé selon l'une des revendications 1 à 8, caractérisé en ce qu'une partie (l) du flux d'air à la pression P2 est détendu et adressé à la colonne MP.
- Installation combinée comprenant au moins un four (F), au moins une soufflante (S) débitant dans une ligne d'air comprimé principale (A) reliée au moins au four, au moins un appareil de distillation d'air comportant au moins une colonne moyenne pression (MP) et une colonne de mélange (CM) ayant une ligne de sortie d'oxygène (O) débouchant dans la ligne d'air comprimé principale (A), une ligne de dérivation (D) depuis la ligne d'air comprimé principale fournissant l'air au moins à la colonne moyenne pression (MP), et au moins un compresseur d'air (C) fournissant de l'air sous pression à au moins la colonne de mélange (CM).
- Installation selon la revendication 10, caractérisée en ce qu'elle comprend un appareil d'épuration de l'air (E1) dans la partie amont de la ligne de dérivation (D).
- Installation selon la revendication 10 ou la revendication 11, caractérisée en ce que le compresseur d'air (C) est alimenté en air ambiant.
- Installation selon la revendication 11, caractérisée en ce qu'elle comprend un appareil d'épuration d'air additionnel (E2) entre le compresseur d'air (C) et la colonne de mélange (CM).
- Installation selon la revendication 10 ou la revendication 11, caractérisée en ce que le compresseur d'air (C) est disposé dans une branche (B) de la ligne de dérivation (D).
- Installation selon la revendication 14, caractérisée en ce qu'elle comprend un groupe de compression (GC) alimenté en air ambiant et comprenant au moins un étage amont (ECi) et un étage final (C) sur une même ligne d'arbre, l'étage final constituant ledit compresseur d'air et la sortie de l'étage amont étant reliée à la zone amont de la ligne de dérivation (D).
- Installation selon l'une des revendications 10 à 15, caractérisée en ce que ledit compresseur d'air (C) est entraíné par une turbine (T) située dans une ligne de fluide sous pression (F).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9800722A FR2774157B1 (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 |
FR9800722 | 1998-01-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0932006A1 true EP0932006A1 (fr) | 1999-07-28 |
Family
ID=9522092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99400150A Withdrawn EP0932006A1 (fr) | 1998-01-23 | 1999-01-22 | Installation combinée d'un four et d'un appareil de distillation d'air et procédé de mise en oeuvre |
Country Status (7)
Country | Link |
---|---|
US (1) | US6089040A (fr) |
EP (1) | EP0932006A1 (fr) |
KR (1) | KR19990068069A (fr) |
AR (1) | AR014472A1 (fr) |
BR (1) | BR9917544A (fr) |
CA (1) | CA2259797A1 (fr) |
FR (1) | FR2774157B1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6250916B1 (en) | 1997-04-15 | 2001-06-26 | American Air Liquide, Inc. | Heat recovery apparatus and methods of use |
US7645319B2 (en) | 2004-02-27 | 2010-01-12 | L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for renovating a combined blast furnace and air/gas separation unit system |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2814178B1 (fr) | 2000-09-18 | 2002-10-18 | Air Liquide | Alimentation en air enrichi en oxygene d'une unite de production de metal non-ferreux |
US6568207B1 (en) * | 2002-01-18 | 2003-05-27 | L'air Liquide-Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Integrated process and installation for the separation of air fed by compressed air from several compressors |
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 |
US20090100864A1 (en) * | 2007-07-06 | 2009-04-23 | Den Held Paul Anton | Process to compress air and its use in an air separation process and systems using said processes |
US8133298B2 (en) | 2007-12-06 | 2012-03-13 | Air Products And Chemicals, Inc. | Blast furnace iron production with integrated power generation |
US20100146982A1 (en) * | 2007-12-06 | 2010-06-17 | Air Products And Chemicals, Inc. | Blast furnace iron production with integrated power generation |
RU2647275C1 (ru) * | 2016-12-15 | 2018-03-15 | Межрегиональное общественное учреждение "Институт инженерной физики" | Способ управления пневматическим приводом криогенной арматуры |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4022030A (en) * | 1971-02-01 | 1977-05-10 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Thermal cycle for the compression of a fluid by the expansion of another fluid |
EP0531182A1 (fr) * | 1991-08-07 | 1993-03-10 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé et installation de distillation d'air, et application a l'alimentation en gaz d'une aciérie |
US5244489A (en) * | 1991-06-12 | 1993-09-14 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for supplying a blast furnace with air enriched in oxygen, and corresponding installation for the reduction of iron ore |
EP0636845A1 (fr) * | 1993-04-30 | 1995-02-01 | The BOC Group plc | Séparation d air |
EP0717249A2 (fr) * | 1994-12-16 | 1996-06-19 | The BOC Group plc | Séparation d'air |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 FR9800722A patent/FR2774157B1/fr not_active Expired - Fee Related
-
1999
- 1999-01-19 CA CA002259797A patent/CA2259797A1/fr not_active Abandoned
- 1999-01-22 EP EP99400150A patent/EP0932006A1/fr not_active Withdrawn
- 1999-01-22 BR BR9917544-4A patent/BR9917544A/pt not_active Application Discontinuation
- 1999-01-22 KR KR1019990001898A patent/KR19990068069A/ko active IP Right Grant
- 1999-01-22 AR ARP990100270A patent/AR014472A1/es unknown
- 1999-01-22 US US09/235,837 patent/US6089040A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4022030A (en) * | 1971-02-01 | 1977-05-10 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Thermal cycle for the compression of a fluid by the expansion of another fluid |
US5244489A (en) * | 1991-06-12 | 1993-09-14 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Process for supplying a blast furnace with air enriched in oxygen, and corresponding installation for the reduction of iron ore |
EP0531182A1 (fr) * | 1991-08-07 | 1993-03-10 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Procédé et installation de distillation d'air, et application a l'alimentation en gaz d'une aciérie |
EP0636845A1 (fr) * | 1993-04-30 | 1995-02-01 | The BOC Group plc | Séparation d air |
EP0717249A2 (fr) * | 1994-12-16 | 1996-06-19 | The BOC Group plc | Séparation d'air |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6250916B1 (en) | 1997-04-15 | 2001-06-26 | American Air Liquide, Inc. | Heat recovery apparatus and methods of use |
US7645319B2 (en) | 2004-02-27 | 2010-01-12 | L'air Liquide Societe Anonyme A Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude | Method for renovating a combined blast furnace and air/gas separation unit system |
Also Published As
Publication number | Publication date |
---|---|
AR014472A1 (es) | 2001-02-28 |
US6089040A (en) | 2000-07-18 |
CA2259797A1 (fr) | 1999-07-23 |
KR19990068069A (ko) | 1999-08-25 |
BR9917544A (pt) | 2002-07-02 |
FR2774157B1 (fr) | 2000-05-05 |
FR2774157A1 (fr) | 1999-07-30 |
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