BE788368A - Procede et appareil pour la compression en plusieurs etages d'un premier courant de gaz avec l'energie derivee d'un second courant de gaz - Google Patents

Procede et appareil pour la compression en plusieurs etages d'un premier courant de gaz avec l'energie derivee d'un second courant de gaz

Info

Publication number
BE788368A
BE788368A BE788368DA BE788368A BE 788368 A BE788368 A BE 788368A BE 788368D A BE788368D A BE 788368DA BE 788368 A BE788368 A BE 788368A
Authority
BE
Belgium
Prior art keywords
gas
current
stage compression
energy derived
derived
Prior art date
Application number
Other languages
English (en)
Inventor
D M Weatherly
D J Byrne
Original Assignee
D M Weatherly Cy
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.)
Publication date
Publication of BE788368A publication Critical patent/BE788368A/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C01B21/28—Apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
    • F02C3/36—Open cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/04—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output
    • F02C6/10—Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output supplying working fluid to a user, e.g. a chemical process, which returns working fluid to a turbine of the plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • 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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0281—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc. characterised by the type of prime driver, e.g. hot gas expander
    • 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
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0279—Compression of refrigerant or internal recycle fluid, e.g. kind of compressor, accumulator, suction drum etc.
    • F25J1/0294—Multiple compressor casings/strings in parallel, e.g. split arrangement
    • 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
    • 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
    • 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
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04951—Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network
    • F25J3/04957—Arrangements of multiple air fractionation units or multiple equipments fulfilling the same process step, e.g. multiple trains in a network and inter-connecting equipments upstream of the fractionation unit (s), i.e. at the "front-end"
    • 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
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/20—Integrated compressor and process expander; Gear box arrangement; Multiple compressors on a common shaft
    • 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
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/24—Multiple compressors or compressor stages in parallel
    • 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
    • F25J2230/00—Processes or apparatus involving steps for increasing the pressure of gaseous process streams
    • F25J2230/40—Processes or apparatus involving steps for increasing the pressure of gaseous process streams 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
    • 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
    • F25J2240/04—Multiple expansion turbines in parallel
    • 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
    • F25J2240/90—Hot gas waste turbine of an indirect heated gas for power generation

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Supercharger (AREA)
BE788368D 1971-09-10 Procede et appareil pour la compression en plusieurs etages d'un premier courant de gaz avec l'energie derivee d'un second courant de gaz BE788368A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US17943671A 1971-09-10 1971-09-10

Publications (1)

Publication Number Publication Date
BE788368A true BE788368A (fr) 1973-01-02

Family

ID=22656589

Family Applications (1)

Application Number Title Priority Date Filing Date
BE788368D BE788368A (fr) 1971-09-10 Procede et appareil pour la compression en plusieurs etages d'un premier courant de gaz avec l'energie derivee d'un second courant de gaz

Country Status (13)

Country Link
US (1) US3715887A (fr)
JP (1) JPS4875952A (fr)
AU (1) AU4649672A (fr)
BE (1) BE788368A (fr)
BR (1) BR7206262D0 (fr)
CA (1) CA966103A (fr)
CS (1) CS166659B2 (fr)
DE (1) DE2243996A1 (fr)
FR (1) FR2155251A5 (fr)
GB (1) GB1367724A (fr)
IT (1) IT967016B (fr)
NL (1) NL7212276A (fr)
PL (1) PL83504B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113565589A (zh) * 2021-05-21 2021-10-29 南方电网科学研究院有限责任公司 喷射补燃压缩空气储能***

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3949557A (en) * 1973-10-11 1976-04-13 Michael Eskeli Turbine
US3977832A (en) * 1975-01-20 1976-08-31 Air Products And Chemicals, Inc. System for control of a nitric acid plant
GB1583648A (en) * 1976-10-04 1981-01-28 Acres Consulting Services Compressed air power storage systems
CH622317A5 (fr) * 1977-07-28 1981-03-31 Bbc Brown Boveri & Cie
DE2856589B1 (de) * 1978-12-29 1980-03-27 Davy Internat Ag Verfahren und Vorrichtung zum zeitlich begrenzten Antrieb der mit dem Luft- und/oder dem Nitrosegas-Kompressor antriebsmaessig gekuppelten Turbine(n)in einer Anlage zur Herstellung von Salpetersaeure
JPS5979096A (ja) * 1982-10-27 1984-05-08 Shimadzu Corp 多段式圧縮装置
DE3536451A1 (de) * 1985-10-12 1987-04-16 Steinmueller Gmbh L & C Druckaufgeladen betreibbare feuerung fuer einen dampferzeuger
WO1994015096A1 (fr) * 1991-04-02 1994-07-07 Sieber Joseph D Generateur d'energie utilisant le mouvement des vagues
DE4123208C2 (de) * 1991-07-10 1996-07-11 Mannesmann Ag Verdichteranlage
IL108546A (en) * 1994-02-03 1997-01-10 Israel Electric Corp Ltd Compressed air energy storage method and system
US5687570A (en) * 1994-02-28 1997-11-18 Ormat Industries Ltd. Externally fired combined cycle gas turbine system
US5799490A (en) * 1994-03-03 1998-09-01 Ormat Industries Ltd. Externally fired combined cycle gas turbine
US7690900B2 (en) * 2005-05-18 2010-04-06 Joe Sieber Wave energy accumulator
US7961835B2 (en) 2005-08-26 2011-06-14 Keller Michael F Hybrid integrated energy production process
GB2469015B (en) * 2009-01-30 2011-09-28 Compair Uk Ltd Improvements in multi-stage centrifugal compressors
AU2011256697B2 (en) * 2010-05-21 2016-05-05 Exxonmobil Upstream Research Company Parallel dynamic compressor apparatus and methods related thereto
JP5863320B2 (ja) * 2011-08-05 2016-02-16 三菱重工コンプレッサ株式会社 遠心圧縮機
DE102011122142A1 (de) 2011-12-22 2013-06-27 Thyssenkrupp Uhde Gmbh Verfahren und Vorrichtung zur Herstellung von Salpetersäure
JP5611253B2 (ja) * 2012-02-23 2014-10-22 三菱重工業株式会社 圧縮機制御装置及びその制御方法、圧縮機システム
US9772129B2 (en) * 2012-08-17 2017-09-26 Vinod Kumar Arora Ammonia plant upgrading-multistage integrated chilling of process air compressor with ammonia compressor followed by air flow split and multistage air preheating to secondary ammonia reformer
US10443603B2 (en) * 2012-10-03 2019-10-15 Praxair Technology, Inc. Method for compressing an incoming feed air stream in a cryogenic air separation plant
US9234530B1 (en) * 2013-03-13 2016-01-12 Exelis Inc. Thermal energy recovery
WO2014159379A1 (fr) * 2013-03-14 2014-10-02 Dresser-Rand Company Système et procédé de mélange à flux latéral
US10047753B2 (en) 2014-03-10 2018-08-14 Dresser-Rand Company System and method for sidestream mixing
US9228485B2 (en) * 2013-04-25 2016-01-05 Electro-Motive Diesel, Inc. Air handling system having cooling assembly
US9709069B2 (en) 2013-10-22 2017-07-18 Dayspring Church Of God Apostolic Hybrid drive engine
JP6049807B2 (ja) * 2015-06-08 2016-12-21 三菱重工コンプレッサ株式会社 遠心圧縮機
US11492964B2 (en) 2020-11-25 2022-11-08 Michael F. Keller Integrated supercritical CO2/multiple thermal cycles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113565589A (zh) * 2021-05-21 2021-10-29 南方电网科学研究院有限责任公司 喷射补燃压缩空气储能***

Also Published As

Publication number Publication date
AU4649672A (en) 1974-03-21
BR7206262D0 (pt) 1973-08-21
CS166659B2 (fr) 1976-03-29
GB1367724A (en) 1974-09-25
NL7212276A (fr) 1973-03-13
IT967016B (it) 1974-02-28
JPS4875952A (fr) 1973-10-12
PL83504B1 (fr) 1975-12-31
CA966103A (en) 1975-04-15
DE2243996A1 (de) 1973-04-05
FR2155251A5 (fr) 1973-05-18
US3715887A (en) 1973-02-13

Similar Documents

Publication Publication Date Title
BE788368A (fr) Procede et appareil pour la compression en plusieurs etages d'un premier courant de gaz avec l'energie derivee d'un second courant de gaz
IT1064511B (it) Elettrocatalizzatore generatore di gas,metodo ed apparato utilizzanti l'elettrocatalizzatore
IL36741A0 (en) Method for the separation of gaseous mixtures with recuperation of mechanical energy and apparatus for carrying out this method
NL7507944A (nl) Werkwijze en inrichting voor electrolyse.
AU8134575A (en) Glow discharge method and apparatus
IT1005075B (it) Procedimento ed apparato per degas sare bagni metallici
JPS5448682A (en) Vapor stripping and collecting method and its apparatus
AU438433B2 (en) An improved method for efficiently separating slurry-state liquid into solid part and liquid part andan apparatus therefor
CH550598A (fr) Procede pour l'obtention d'un degagement de gaz epures et generateur de gaz pour la mise en oeuvre de ce procede.
BE845200A (fr) Procede et appareil pour accumuler l'energie thermique
NL182492B (nl) Continu gistingsproces en daarvoor geschikte fermentatie-inrichting.
GB1447834A (en) Micro-parallel plate plastometer and viscometry method
ZA724570B (en) Steel conversion method and apparatus
OA02742A (fr) Procédé et appareil pour la deshydratation d'un gaz.
BE785580A (fr) Procede de regulation par l'echantillonnage des pressions partielles dumelange gazeux d'au moins une enceinte et dispositif mettant en oeuvre ce procede
BE817154A (fr) Procede et dispositif de refroidissement d'un gaz
AU462746B2 (en) Apparatus and process for slag reduction ina vapor generator
ZA728589B (en) Electrolysis method and apparatus
BE794834A (fr) Procede et appareillage pour la transformation d'une forme d'energie en une autre
ZA755534B (en) Separator apparatus and method
BE777071A (fr) Procede de production d'un gaz reducteur
BE777070A (fr) Procede et appareillage de chauffage d'un gaz
BE781716A (fr) Procede de coulage continu de metaux et equipement y relatif
RO64303A (fr) Procede pour obtenir l'energie nucleaire,dispositif pour le realiser et element nucleaire
BE779903A (fr) Procede et appareil pour le refroidissement rapide de filamentsmetalliques