FI84168B - TVAOSTEGSAMMONIAKKONVERTER MED MINST EN EN KATALYSATORBAEDD OCH EN DAERI ANORDNAD VAERMEVAEXLARE. - Google Patents

TVAOSTEGSAMMONIAKKONVERTER MED MINST EN EN KATALYSATORBAEDD OCH EN DAERI ANORDNAD VAERMEVAEXLARE. Download PDF

Info

Publication number
FI84168B
FI84168B FI880450A FI880450A FI84168B FI 84168 B FI84168 B FI 84168B FI 880450 A FI880450 A FI 880450A FI 880450 A FI880450 A FI 880450A FI 84168 B FI84168 B FI 84168B
Authority
FI
Finland
Prior art keywords
heat exchanger
ammonia converter
heat
tubes
converter according
Prior art date
Application number
FI880450A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI84168C (en
FI880450A (en
FI880450A0 (en
Inventor
Hans-Dieter Marsch
Klaus-Juergen Mundo
Original Assignee
Uhde Gmbh
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.)
Filing date
Publication date
Application filed by Uhde Gmbh filed Critical Uhde Gmbh
Publication of FI880450A0 publication Critical patent/FI880450A0/en
Publication of FI880450A publication Critical patent/FI880450A/en
Application granted granted Critical
Publication of FI84168B publication Critical patent/FI84168B/en
Publication of FI84168C publication Critical patent/FI84168C/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/04—Preparation of ammonia by synthesis in the gas phase
    • C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
    • C01C1/0417—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst characterised by the synthesis reactor, e.g. arrangement of catalyst beds and heat exchangers in the reactor
    • C01C1/0423—Cold wall reactors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B01J8/04—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
    • B01J8/0403—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the fluid flow within the beds being predominantly horizontal
    • B01J8/0407—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the fluid flow within the beds being predominantly horizontal through two or more cylindrical annular shaped beds
    • B01J8/0415—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds the fluid flow within the beds being predominantly horizontal through two or more cylindrical annular shaped beds the beds being superimposed one above the other
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/04—Preparation of ammonia by synthesis in the gas phase
    • C01C1/0405—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst
    • C01C1/0417—Preparation of ammonia by synthesis in the gas phase from N2 and H2 in presence of a catalyst characterised by the synthesis reactor, e.g. arrangement of catalyst beds and heat exchangers in the reactor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
    • B01J2208/00203—Coils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00017—Controlling the temperature
    • B01J2208/00106—Controlling the temperature by indirect heat exchange
    • B01J2208/00168—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles
    • B01J2208/00212—Plates; Jackets; Cylinders
    • B01J2208/00221—Plates; Jackets; Cylinders comprising baffles for guiding the flow of the heat exchange medium
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Sorption Type Refrigeration Machines (AREA)
  • Catalysts (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Glass Compositions (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

In a two-stage ammonia converter containing at least one catalyst bed arranged in the pressure housing in annular fashion and a heat exchanger which can be flowed through by the reaction gas and is arranged centrally in the interior with respect to said bed, a solution is to be provided with which especially the guiding of the heat exchanger pipes, optimisation, decoupling of the length of the heat exchanger from the height of the catalyst bed and even a more favourable transmission of heat are achievable, where, in particular, a solution which is simple in construction terms should be found. This is achieved by constructing the heat exchanger (5) as a single-plate heat exchanger having heat exchanger tubes (6) arranged centrally in a plate (7) in a U-shaped manner, the side tubes of the U-tubes being arranged centrally for the inlet and being arranged on the circumference for the outlet. <IMAGE>

Description

8416884168

Kaksivaiheinen airanoniakkikonvertteri, jossa on ainakin yksi katalysaattorikerros ja sen sisälle järjestetty lämmönvaih-din - Tvästegsammoniakkonverter med minst en katalysatorbädd och en däri anordnad värmeväxlareTwo-phase airanone battery converter with at least one catalyst bed and a heat exchanger arranged inside it - Tvästegsammoniakkonverter med minst en katalysatorbädd och en däri anordnad värmeväxlare

Keksintö kohdistuu kaksivaiheiseen ammoniakkikonvertteriin, jossa on ainakin yksi renkaanmuotoinen paineastiaan järjestetty katalysaattorirunko ja sen sisään samankeskeisesti asennettu lämmönvaihdin, jonka läpi reaktiokaasut voivat virrata .The invention relates to a two-stage ammonia converter with at least one annular catalyst body arranged in a pressure vessel and a heat exchanger mounted concentrically inside it, through which the reaction gases can flow.

Kaksivaiheisia ammoniakkikonverttereja on tunnettuna erilaisina konstruktioina. Siten julkaisun DE-27 10 247 mukainen ratkaisu tällaiselle konvertterille samoin kuin julkaisu DE-31 46 778 esittävät erilaisia rakennetapoja. Tunnetuille ratkaisuille on yhteistä, että lämmönvaihtimen keskellä olevaan putkeen sen sisälle johdetaan kaasu, joka johdetaan sitten taas vastaavia paluuvirtausputkia pitkin esilämmitystä varten ensimmäisen katalysaattorirungon etupuolelle, jotta tämä sitten ainakin osittain joutuisi läpivirtaukseen ja reaktiolämpöön seuraavassa lämmönvaihtimessa.Two-phase ammonia converters are known in various constructions. Thus, the solution according to DE-27 10 247 for such a converter as well as DE-31 46 778 show different constructions. Common to the known solutions is the introduction of gas into the pipe in the middle of the heat exchanger, which is then again passed through corresponding return pipes for preheating to the front of the first catalyst body so that it then at least partially undergoes flow and reaction heat in the next heat exchanger.

On osoittautunut, että rakenteesta ja kaasun johtamisesta riippuen eivät poikkileikkaukseltaan erittäin suuret keskellä olevat putket johda optimaalisiin tuloksiin.It has been shown that, depending on the structure and the conduction of the gas, the pipes with a very large cross-section in the middle do not lead to optimal results.

Keksinnön tarkoituksena on siten saada aikaan ratkaisu, minkä avulla on suoraan lämmönvaihdinputkien johtamisella saavutettavissa optimitulos ja myös edullinen lämmönsiirtyminen, jolloin on löydettävä erityisesti rakenteellisesti yksinkertainen ratkaisu.The object of the invention is thus to provide a solution by means of which the optimum result can also be achieved by directing the heat exchanger tubes and also an advantageous heat transfer, in which case a particularly structurally simple solution must be found.

Johdannossa esitetyn tyyppisessä kaksivaiheisessa ammoniakki-konvertterissa tämä tehtävä ratkaistaan keksinnön mukaisesti siten, että lämmönvaihdin muotoillaan yksipohjäiseksi lämmön- 2 84168 vaihtimiseksi, joeea on U-muotoieet pohjaan järjestetyt läm-mönvaihdinputket, jolloin tavanomaieieta toteutusmuodoista poiketen U-putkien sisaantulohaara sijaitsee levyn keskellä ja ulostulohaara kehällä.In a two-stage ammonia converter of the type described in the introduction, this object is solved according to the invention by designing the heat exchanger as a single-base heat exchanger.

Periaatteessa ovat U-muotoiset lämmönvaihdinputket tunnettuja. Tässä tapauksessa etusijalla olevassa säteierakenteisessa kaksivaiheisessa ammoniakkikonvertteriesa on näillä se etu, että jo sisemmät ja kaasua alaspäin johtavat lämmönvaihdinputket ovat käytettävissä lämmönvaihtoon. Niin kutsuttu yksi-pohjainen rakenne tekee tavallisesti myöskin erittäin yksinkertaisen rakenteen mahdolliseksi, koska koko lämmönvaihdin voidaan esimerkiksi laskea ja asentaa ylhäältä päin reaktoriin. Se voidaan koska tahansa vaihtaa tai poistaa vaikkapa korjausta varten ilman, että tämä aiheuttaa erityisiä vaikeuksia. Tämän lisäksi ei lämmönvaihtimien pituuden tarvitse täsmätä katalysaattorirungon pituuteen, toisin sanoen se voi olla tehty myös lyhyemmäksi.In principle, U-shaped heat exchanger tubes are known. In this case, the preferred radial two-stage ammonia converter has the advantage that the already inner and gas-down heat exchanger tubes are available for heat exchange. The so-called single-base structure also usually makes a very simple structure possible, because the entire heat exchanger can, for example, be lowered and installed from above in the reactor. It can be replaced or removed at any time, for example for repair, without this causing any particular difficulty. In addition, the length of the heat exchangers does not have to match the length of the catalyst body, i.e. it can also be made shorter.

Keksintöä toteutettaessa on tarkoituksena, että lämmönvaih-dinpohja on järjestetty painovoiman suunnassa lämmönvaihtimen yläreunaan ja on varustettu keskellä olevalla tuorekaasun syöttö- ja jakokuvulla.In carrying out the invention, it is intended that the base of the heat exchanger is arranged in the direction of gravity at the upper edge of the heat exchanger and is provided with a central supply and distribution hood for fresh gas.

Voi olla tarkoituksenmukaista, että U-muotoisten putkien ympärille sijoitetaan ritilät lämpöä vaihtavien ensimmäisestä katalysaattorirungosta tulevien kaasujen virtauksen ohjaamiseksi, kuten tunnettua.It may be expedient to place gratings around the U-shaped tubes to control the flow of heat-exchanging gases from the first catalyst body, as is known.

On myös edullista, että lämmönvaihtimen putkinipun sisäpuolelle sijoitetaan ainakin yksi ulostuloaukostaan muutettavissa oleva syöttöputki jäähdytyskaasua varten. Näin on sekä reaktion ajaminen yksinkertaistettavissa että myös tiettyjä ohjaustoimintoja tehtävissä.It is also preferred that at least one supply pipe for the cooling gas which can be changed from its outlet opening is placed inside the heat exchanger tube bundle. This simplifies both running the reaction and performing certain control functions.

3 841683 84168

Keksintöä selostetaan seuraavassa esimerkinomaisesti viittaamalla piirustukseen. Tämä esittää yhdessä kuviossaan poikkileikkausta yksinkertaistettuna esitetystä kaksivaiheisesta keksinnön mukaisesta ammoniakkikonvertterista.The invention is described below by way of example with reference to the drawing. In one of its figures, this shows a cross-section of a simplified two-stage ammonia converter according to the invention.

Yleisesti viitenumerolla 1 osoitettu konvertteri sisältää paineastian 2 kansineen 2a, jolloin paineastian sisään on järjestetty kaksi katalysaattorirunkoa 3 ja 4, joiden erityistä rakennetta ja joiden erityistä rakennemuotoa ei tässä käsitellä .The converter, generally indicated by reference numeral 1, comprises a pressure vessel 2 with a lid 2a, in which case two catalyst bodies 3 and 4 are arranged inside the pressure vessel, the special structure and the special construction of which are not discussed here.

Sylinterinmuotoinen, tässä yhteydessä oleellisesti kiinnostavan katalysaattorirungon 3 sisällä on yksipohjäinen lämmön-vaihdin 5, jonka lämmönvaihdinputket 6 on taivutettu kulkemaan U-muotoisina sisältä ulos ja jotka on järjestetty yhteiseen putkilevyyn 7.Inside the cylindrical catalyst body 3, which is essentially of interest here, is a single-bottomed heat exchanger 5, the heat exchanger tubes 6 of which are bent to run U-shaped from the inside out and are arranged in a common tube plate 7.

U-kaaren muotoisten lämmönvaihdinputkien 6 sisällä sijaitsevat osaputket ovat yhteydessä jakokupuun 8, johon johdetaan syöttökaasu 9 synteesikaasua varten. Pois johtavat putkenhaa-rat aukeavat kaasukupuun 10, josta tapahtuu syöttö säteittäi-seksi läpivirtaukseksi ensimmäisestä katalysaattorirungosta 3.The sub-pipes located inside the U-shaped heat exchanger tubes 6 are connected to a manifold 8, to which a feed gas 9 for synthesis gas is introduced. The outgoing pipe branches open into a gas dome 10, from which a radial flow takes place from the first catalyst body 3.

Lämmönvaihtimen 5 sisälle on järjestetty ritilät 11 optimaalisen läpivirtauksen aikaansaamiseksi. On järjestetty myös jäähdytysputki 12, jonka upotussyvyys on muutettavissa, mikä on osoitettu kaksoisnuolella 13. Toisen katalysaattorirungon 4 läpi tapahtuneen säteittäisen virtauksen jälkeen saavuttaa prosessikaasu ulostuloyhteen 14.Gratings 11 are arranged inside the heat exchanger 5 to provide optimal flow. A cooling pipe 12 is also provided, the immersion depth of which can be changed, which is indicated by a double arrow 13. After a radial flow through the second catalyst body 4, the process gas reaches the outlet connection 14.

Claims (4)

1. Tväategaammoniakkonverter med minät en ringformig katalysatorbädd anordnad i tryckbehillaren och en däri kon-centriakt anordnad värmeväxlare genom vilken reaktionagaserna kan atrömma, kännetecknad av att värmeväxlaren (5) är utformad aom en enbottnad varmeväxlare med U-formade värme-växlarrör (6) anordnade i bottnen (7), varvid rörgrenarna av U-rören för inlopp är anordnade ι mitten och för utlopp ι periferin.1. Two-way ammonia converter with minette an annular catalyst bed disposed in the pressure vessel and a concentric heat exchanger disposed therein through which the reaction gases can flow, characterized in that the heat exchanger (5) is formed by a single-exchange heat exchanger (6). the bottom (7), wherein the tube branches of the U-pipes for inlet are arranged in the middle and for outlets in the periphery. 2. Tväategaammoniakkonverter enligt patentkravet 1, kännetecknad av att värmeväxlarena botten (7) är anordnad i tyngdkraftena riktning vid värmeväxlarena (5) övre aida och föraedd med en central inloppa- och fördelningekupa (8) för f ärek gaa.A two-way ammonia converter according to claim 1, characterized in that the heat exchangers bottom (7) is arranged in the gravity direction at the upper aids of the heat exchanger (5) and provided with a central inlet and distribution cup (8). 3. Tväategaammoniakkonverter enligt patentkravet 1 eller 2, kännetecknad av att hinder (11) är anordnade kring de U-formade rören (6) för atyrning av atrömnmgen av de värmeväx-lande gaaerna frän den förata katalyaatorbädden (3) pä ι och för aig känt eätt.Two-way ammonia converter according to claim 1 or 2, characterized in that obstructions (11) are arranged around the U-shaped tubes (6) for attenuating the flow of the heat exchange gauges from the precursor catalytic bed (3) and known eätt. 4. Tväategaammoniakkonverter enligt nägot av de före-gäende patentkraven, kännetecknad av att ätminstone ett inlopparör (12) för avkylningagaa är anordnat in i värmeväxlarena (5) rorknippe (6), vilket inloppsrörs effektiva ut-loppeöppning kan förändraa.Two-way ammonia converter according to any of the preceding claims, characterized in that at least one cooling tube inlet pipe (12) is arranged in the heat exchanger (5) rudder bundle (6), which can change the effective outlet opening of the inlet pipe.
FI880450A 1987-03-18 1988-02-01 Two-stage ammonia converter with at least one catalyst bed and a heat exchanger arranged therein FI84168C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873708781 DE3708781A1 (en) 1987-03-18 1987-03-18 TWO-STAGE AMMONIA CONVERTER WITH AT LEAST ONE CATALYST BED WITH HEAT EXCHANGER INSIDE ITSELF
DE3708781 1987-03-18

Publications (4)

Publication Number Publication Date
FI880450A0 FI880450A0 (en) 1988-02-01
FI880450A FI880450A (en) 1988-09-19
FI84168B true FI84168B (en) 1991-07-15
FI84168C FI84168C (en) 1991-10-25

Family

ID=6323361

Family Applications (1)

Application Number Title Priority Date Filing Date
FI880450A FI84168C (en) 1987-03-18 1988-02-01 Two-stage ammonia converter with at least one catalyst bed and a heat exchanger arranged therein

Country Status (13)

Country Link
EP (1) EP0282699B1 (en)
JP (1) JPH0672013B2 (en)
CN (1) CN1010402B (en)
AT (1) ATE86950T1 (en)
AU (1) AU594229B2 (en)
CA (1) CA1298962C (en)
DE (3) DE8717724U1 (en)
DK (1) DK172441B1 (en)
ES (1) ES2039001T3 (en)
FI (1) FI84168C (en)
MY (1) MY100781A (en)
NO (1) NO170575C (en)
ZA (1) ZA88539B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3819451A1 (en) * 1988-06-08 1989-12-14 Uhde Gmbh DEVICE FOR CARRYING OUT EXOTHERMAL, CATALYTIC GAS REACTIONS FOR AMMONIA OR METHANOL SYNTHESIS
DE102004028200B3 (en) 2004-05-28 2005-12-15 Hippweb E.K. Method for carrying out heterogeneous catalytic exothermic gas phase reactions for the synthesis of methanol
DE102006061847A1 (en) * 2006-12-21 2008-06-26 Uhde Gmbh Ammonia converter comprises a radially flowed-through catalyst bed, which concentrically surrounds a heat exchanger, an external- and/or an internal annular space and a main flow direction formed by the catalyst bed
GB201308428D0 (en) * 2013-05-10 2013-06-19 Johnson Matthey Plc Reactor
DE102016203753A1 (en) * 2016-03-08 2017-09-14 Thyssenkrupp Ag Process for the production of products under changing load conditions

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6904757A (en) * 1968-03-28 1969-09-30
IT1041778B (en) * 1975-07-15 1980-01-10 Snam Progetti RADIAL FLOW REACTOR FOR AMMONIA SYNTHESIS WITH HIGH THERMAL LEVEL STEAM PRODUCTION
GB1574723A (en) * 1976-03-10 1980-09-10 Haldor Topsoe As Apparatus for the synthesis of ammonia
IT1141102B (en) * 1980-11-28 1986-10-01 Ammonia Casale Sa AXIAL-RADIAL REACTOR FOR HETEROGENEOUS SYNTHESIS
US4452760A (en) * 1982-01-18 1984-06-05 The M. W. Kellogg Company Horizontal ammonia converter

Also Published As

Publication number Publication date
FI84168C (en) 1991-10-25
EP0282699A3 (en) 1989-04-26
NO880535L (en) 1988-09-19
FI880450A (en) 1988-09-19
JPS63230517A (en) 1988-09-27
MY100781A (en) 1991-02-14
DK172441B1 (en) 1998-07-13
DE3708781C2 (en) 1989-11-23
JPH0672013B2 (en) 1994-09-14
CN1010402B (en) 1990-11-14
NO170575C (en) 1992-11-04
CN88100966A (en) 1988-10-05
EP0282699B1 (en) 1993-03-17
EP0282699A2 (en) 1988-09-21
ZA88539B (en) 1988-07-27
AU1130388A (en) 1988-09-22
DE8717724U1 (en) 1989-10-05
NO880535D0 (en) 1988-02-08
ES2039001T3 (en) 1993-08-16
DE3708781A1 (en) 1988-09-29
NO170575B (en) 1992-07-27
DK50188A (en) 1988-09-19
CA1298962C (en) 1992-04-21
DE3879241D1 (en) 1993-04-22
DK50188D0 (en) 1988-02-01
ATE86950T1 (en) 1993-04-15
FI880450A0 (en) 1988-02-01
AU594229B2 (en) 1990-03-01

Similar Documents

Publication Publication Date Title
RU2265480C2 (en) Reactor for realization of the exothermic or endothermic heterogeneous reactions and a method of its production
EP0222069A2 (en) Converter for heterogeneous synthesis more particularly for ammonia, methanol and higher alcohols
JPS5714188A (en) Heat exchanger between circulation gas and water from ammonia converter
SU791203A3 (en) Reactor
US4546826A (en) Spiral heat exchanger
JPH0449147Y2 (en)
CN105903413B (en) Gas-gas heat exchange type isothermal reactor
FI84168B (en) TVAOSTEGSAMMONIAKKONVERTER MED MINST EN EN KATALYSATORBAEDD OCH EN DAERI ANORDNAD VAERMEVAEXLARE.
RU2310641C2 (en) Method and installation for the heterogeneous synthesis of methanol or ammonia
CA1322450C (en) Converters for heterogeneous catalytic synthesis, particularly for ammonia and methanol, under pressure
US4337224A (en) Apparatus for conducting the catalytic oxidation of gaseous sulfur compounds to sulfur trioxide
RU2262380C2 (en) Catalytic reactor for exothermic processes running in a gas-solid phase with a small difference of temperatures
US4576225A (en) Heat exchanger for cooling hot gases, especially those deriving from the synthesis of ammonia
NO874935D0 (en) DEVICE BY NH3 REACTOR.
JPH09165202A (en) Steam reformer
WO2017063796A1 (en) Isothermal tubular catalytic reactor
JPS63283741A (en) Contact reaction device
CN211800744U (en) Jacket type heat exchange device also serving as guide cylinder
SU1058596A1 (en) Reactor
SU1142949A1 (en) Catalytic tubular converter
CN210206887U (en) Preheating system for continuous flow reaction
RU2039923C1 (en) Shell-and-tube heat exchanger
JP2776777B2 (en) Multi-tube heat exchanger with built-in filter
RU1773473C (en) Vertical tubular reactor

Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: UHDE GMBH