WO2005005040A1 - Echangeur thermique et reacteur equipe d'un tel echangeur thermique - Google Patents

Echangeur thermique et reacteur equipe d'un tel echangeur thermique Download PDF

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Publication number
WO2005005040A1
WO2005005040A1 PCT/EP2004/007310 EP2004007310W WO2005005040A1 WO 2005005040 A1 WO2005005040 A1 WO 2005005040A1 EP 2004007310 W EP2004007310 W EP 2004007310W WO 2005005040 A1 WO2005005040 A1 WO 2005005040A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchange
heat exchanger
exchange elements
reactor
heat
Prior art date
Application number
PCT/EP2004/007310
Other languages
German (de)
English (en)
Inventor
Julius Jeisy
Gottfried LÜTHY
Original Assignee
Dsm Ip Assets B.V.
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 Dsm Ip Assets B.V. filed Critical Dsm Ip Assets B.V.
Priority to DE112004001184T priority Critical patent/DE112004001184D2/de
Priority to DE202004021361U priority patent/DE202004021361U1/de
Publication of WO2005005040A1 publication Critical patent/WO2005005040A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
    • F28D7/163—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing
    • F28D7/1669—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation with conduit assemblies having a particular shape, e.g. square or annular; with assemblies of conduits having different geometrical features; with multiple groups of conduits connected in series or parallel and arranged inside common casing the conduit assemblies having an annular shape; the conduits being assembled around a central distribution tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F35/93—Heating or cooling systems arranged inside the receptacle
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0006—Controlling or regulating processes
    • B01J19/0013—Controlling the temperature of the process
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/006—Baffles
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/0066—Stirrers
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C46/00—Preparation of quinones
    • C07C46/02—Preparation of quinones by oxidation giving rise to quinoid structures
    • C07C46/06—Preparation of quinones by oxidation giving rise to quinoid structures of at least one hydroxy group on a six-membered aromatic ring
    • C07C46/08—Preparation of quinones by oxidation giving rise to quinoid structures of at least one hydroxy group on a six-membered aromatic ring with molecular oxygen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/90—Heating or cooling systems
    • B01F2035/98—Cooling
    • 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
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
    • B01J2219/00081—Tubes

Definitions

  • the invention relates to a heat exchanger according to the preamble of the independent claim and a reactor with such a heat exchanger.
  • Such heat exchangers are used, for example, in oxidation reactor vessels such as are used in the synthesis of vitamin E in the form of ⁇ -tocopherol or ⁇ -tocopherol acetate, for example in the intermediate stage of the oxidation of trimethylphenol to triethylquinone.
  • This oxidation can take place in a solvent such as diethylene glycol monomethyl ether in the presence of a suitable catalyst such as copper chloride.
  • the (exothermic) oxidation takes place, for example, at a temperature of about 60-105 ° C. and a pressure of, for example, about 1.3 ⁇ 10 5 Pa.
  • the reactor vessel is pressure-resistant up to a pressure of 40 x 10 5 Pa for safety reasons.
  • the reactor should be corrosion-resistant and, if possible, inert.
  • a high concentration of oxygen in the solution is desirable to avoid the formation of by-products such as copper oxalate. To do this, it must be possible to supply oxygen in sufficient quantities at all times.
  • a large exchange surface between the solution and the oxygen atmosphere is advantageous.
  • reactors have been proposed in which the heat exchanger comprises a spiral half-pipe coil which is attached to the outside of the container wall.
  • the container is easy to clean, but good heat dissipation is only fairly inadequate due to the rather massive wall thickness of the reactor container (for example 50 mm), which is required to ensure sufficient pressure resistance.
  • two cylindrical spirals (each similar to the shape of a helical spring) extending coaxially in the longitudinal direction of the container have been proposed as heat exchangers, of which at least the outer spiral is arranged relatively close to the inner wall of the container.
  • good heat transfer to the heat exchanger here the spirals
  • the spirals is only possible if the flow rate is high and the pipes are subject to turbulent flow.
  • the object of the following invention is therefore to propose a heat exchanger which has a high mechanical resistance, in particular a high pressure resistance, and whose heat exchange surface is as large as possible.
  • poorly mixed zones in the reactor vessel, in particular in the edge area, should be prevented.
  • the object is achieved by a heat exchanger as characterized by the independent claim.
  • Advantageous configurations of the heat exchanger according to the invention result from the paint the dependent claims.
  • the heat exchange elements of the heat exchanger according to the invention comprise a plurality of, for example four, tubes arranged in the direction of the longitudinal axis of the heat exchange element, for example vertically.
  • the tubes of a single heat exchange element are connected at one end, for example the lower ends, to a first header and at their other ends, for example the upper ends, to a second header.
  • Such a heat exchanger is characterized by a high mechanical resistance that
  • the heat exchange surface is large and a swirl is created right into the edge areas of the reactor vessel, which ensures that the reagents are thoroughly mixed.
  • the first collector of a heat exchange element can be connected to the supply line and the second to the discharge line, so that a heat exchange medium flows through the heat exchange elements during operation.
  • the straight flow through the heat exchange elements with the heat exchange medium allows high flow rates and thus a better exchange of heat.
  • the vertical flow from bottom to top is advantageous in that, when a liquid is used as the heat exchange medium during operation, no air can be present in the tubes, which results in a better exchange of heat.
  • All of the first collectors of the heat exchange elements can have a first common manifold and all of the second collectors can have a second common Bus line connected.
  • the manifolds can run similarly to the path along which the heat exchange elements are arranged, for example circular, and are in turn connected to the supply and discharge lines.
  • Such manifolds have the advantage that not all heat exchange elements or their collectors have to be connected individually to the supply or discharge line, which simplifies the construction of the heat exchanger, and that the flow conditions in the heat exchange elements are constant over the entire heat exchanger.
  • a displacement body can be arranged in each case in the tubes of the heat exchange elements.
  • it serves to provide as much contact area as possible between e.g. to create a cooling medium as a heat exchange medium and a medium to be cooled per unit volume of cooling medium and thus to increase the efficiency of the heat exchange.
  • it serves to increase the flow velocity in the heat exchange elements while the line pressure in the supply and discharge lines remains constant, and thus to improve the cooling capacity of the heat exchanger, because the heated cooling medium is quickly removed and new cold cooling medium immediately flows through the pipes again.
  • the heat exchanger according to the invention can either be coated with a corrosion-resistant, in particular inert, material, for example titanium, or consist of such a material. This prevents the heat exchanger from being damaged by the reaction and prevents additional undesirable by-products from being formed.
  • a reactor in particular an oxidation reactor, with a reactor vessel in which a heat exchanger, which is specified in more detail above, is arranged.
  • Such reactors are particularly suitable - as mentioned at the beginning - for the synthesis of vitamin E and there especially for the intermediate stage of the oxidation of trimethylphenol to trimethylquinone.
  • FIG. 1 shows a reactor vessel with an embodiment of a heat exchanger according to the invention
  • FIG. 2 is a plan view of the open reactor vessel from FIG. 1,
  • FIG. 3 shows a view of an individual heat exchange element of the exemplary embodiment of the heat exchanger according to the invention from FIG. 1,
  • Fig. 4 is a bottom view of the first manifold of the embodiment, the heat exchanger according to the invention from Fig. 1, and
  • FIG. 5 shows a section through a single tube of a heat exchange element according to FIG. 3, in which a displacement body is arranged.
  • the heat exchanger comprises a plurality of heat exchange elements 2 arranged in a circle around the longitudinal axis 10 of the reactor vessel 1 (see also FIG. 2), two header lines 30 and 31 connecting the heat exchange elements 2, a plurality of supply lines 4 and a plurality of discharge lines 5.
  • the heat exchange elements 2 are vertical in the edge region of the Reactor vessel 1 arranged. Industrial cooling water can be used as the heat exchange medium
  • Feed lines 4 are conveyed via a lower, first collecting line 30 into the first collectors 21 and from there into the tubes 20 of the heat exchange elements 2. It flows vertically from bottom to top through the tubes 20 and thereby absorbs heat from the solution via the tube wall 201 (FIG. 5).
  • the heated industrial cooling water flows through the second header 22 via an upper, second header 31 into the discharge lines 5 and is transported out of the reactor vessel 1.
  • 2 shows a plan view of the opened reactor vessel 1.
  • the thirty heat exchange elements 2 shown here by way of example are arranged at an angle ⁇ of approximately forty-five degrees to the circumferential direction.
  • Fig. 2 also shows that the heat exchange elements 2 here from a total of four supply lines 4 are fed with cooling water and this cooling water is discharged again from the heat exchange elements 2 via four discharge lines 5.
  • FIG. 3 shows an individual heat exchange element 2. It comprises a lower, here horizontally arranged, first collector 21, which is connected to the feed lines 4 (FIG. 1) via the first collecting line 30.
  • first collector 21 which is connected to the feed lines 4 (FIG. 1) via the first collecting line 30.
  • second collector 22 which is likewise arranged horizontally here.
  • This second collector 22 is connected to the discharge lines 5 via the second collecting line 31.
  • FIG. 4 shows the first, here circularly formed, collecting line 30, as it is connected to the heat exchange elements 2 and the supply lines 4 (FIG. 1).
  • the cooling water is conveyed into the first collecting line 30 via four feed connections 32.
  • the first manifold 30 is used to connect the four feed lines 4 (FIG. 1) to the thirty heat exchange elements 2 (FIG. 3) via the connecting lines 33 and to supply them with cooling water uniformly.
  • the second collecting line 31 can also be transported away of the cooling water from the heat exchange elements 2 (Fig. 3) are arranged.
  • FIG. 5 shows a single tube 20 of a heat exchange element 2 (FIG. 3).
  • a displacement body 200 is arranged in the center of the tube.
  • the cooling water flowing through the tube 20 is guided along the tube wall 201 through the displacement body. This increases the contact area between cooling water and tube wall 201 per unit volume of cooling water in comparison to a tube 20 without a displacement body 200.
  • the displacement body 200 is arranged in the center of the tube. The cooling water flowing through the tube 20 is guided along the tube wall 201 through the displacement body. This increases the contact area between cooling water and tube wall 201 per unit volume of cooling water in comparison to a tube 20 without a displacement body 200.
  • Displacement body 200 With the line pressure remaining the same, the flow velocity in the pipe 20, which leads to the cooling water heating up less. Thus there is a higher temperature gradient between the cooling water and the solution and the cooling efficiency is increased.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

La présente invention concerne un échangeur thermique pour une cuve de réacteur (1) qui comprend une conduite d'admission (4) et une conduite d'évacuation (5) pour un milieu d'échange thermique, ainsi que plusieurs éléments d'échange thermique (2) reliés à la conduite d'admission (4) et à la conduite d'évacuation (5). Ces éléments d'échange thermique (2) sont montés le long d'une voie circulaire plane. Les éléments d'échange thermique individuels (2) sont montés de façon à former un angle aigu (α) situé entre 10° et 70° avec la voie circulaire. Leurs axes longitudinaux s'étendent de manière perpendiculaire au plan de la voie circulaire. Les éléments d'échange thermique individuels (2) comprennent plusieurs tubes (20) montés dans la direction de leurs axes longitudinaux, dont une extrémité est reliée à un premier collecteur commun (21) et l'autre extrémité est reliée à un second collecteur commun (22).
PCT/EP2004/007310 2003-07-14 2004-07-05 Echangeur thermique et reacteur equipe d'un tel echangeur thermique WO2005005040A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112004001184T DE112004001184D2 (de) 2003-07-14 2004-07-05 Wärmetauscher und Reaktor mit einem derartigen Wärmetauscher
DE202004021361U DE202004021361U1 (de) 2003-07-14 2004-07-05 Wärmetauscher und Reaktor mit einem derartigen Wärmetauscher

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03405534.3 2003-07-14
EP03405534 2003-07-14

Publications (1)

Publication Number Publication Date
WO2005005040A1 true WO2005005040A1 (fr) 2005-01-20

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ID=34043025

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/007310 WO2005005040A1 (fr) 2003-07-14 2004-07-05 Echangeur thermique et reacteur equipe d'un tel echangeur thermique

Country Status (4)

Country Link
CN (1) CN1822899A (fr)
CH (1) CH696802A5 (fr)
DE (2) DE202004021361U1 (fr)
WO (1) WO2005005040A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009042274A1 (fr) * 2007-09-26 2009-04-02 General Electric Company Dispositifs de refroidissement radiant et procédés d'assemblage de ceux-ci
EP2246109A1 (fr) * 2009-04-29 2010-11-03 Methanol Casale S.A. Réacteur de tube isotherme
JP2011503514A (ja) * 2007-11-16 2011-01-27 ゼネラル・エレクトリック・カンパニイ シンガス冷却器プラテンの製造方法及びシンガス冷却器プラテン
US20110186278A1 (en) * 2008-09-23 2011-08-04 Methanol Casale S.A. Heat exchanger with radially arranged elements for isothermal chemical reactors
DE102007012112C5 (de) * 2007-03-13 2016-08-18 Loritus Gmbh Vorrichtung und Verfahren zur hydrothermalen Karbonisierung von Biomasse
JP2017507015A (ja) * 2014-01-02 2017-03-16 ハンワ ケミカル コーポレイション バッフルを備えた回分式反応器

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102641713B (zh) * 2012-04-18 2014-03-19 南京斯迈柯特种金属装备股份有限公司 一种直管换热式高效聚合反应釜
DE102014009237A1 (de) * 2014-06-24 2015-12-24 Weylchem Wiesbaden Gmbh Verfahren zur Gewinnung von Vitamin E, Sterolen und/oder Terpenen aus öligen oder fettigen Gemischen biologischer Herkunft
FI20145759A (fi) * 2014-09-02 2016-03-03 Outotec Finland Oy Autoklaavi ja lämmönsiirtoelementti
CN109482120A (zh) * 2018-12-14 2019-03-19 南通三圣石墨设备科技股份有限公司 一种新型反应釜内置石墨换热器及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2753388A1 (de) * 1976-12-01 1978-07-13 Biogal Gyogyszergyar Fermentierungseinrichtung mit grossem volumen
US4670397A (en) * 1986-02-05 1987-06-02 Phillips Petroleum Company Fermentation apparatus
EP0316910A1 (fr) * 1987-11-17 1989-05-24 Phillips Petroleum Company Dispositif d'échange de chaleur
EP1031373A2 (fr) * 1999-02-27 2000-08-30 Metallgesellschaft Aktiengesellschaft Réacteur et procédé pour la conversion catalytique de mélanges gazeux
WO2002026370A1 (fr) * 2000-09-26 2002-04-04 Shell Internationale Research Maatschappij B.V. Pieces rapportees en forme de tige pour tubes de reacteur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2753388A1 (de) * 1976-12-01 1978-07-13 Biogal Gyogyszergyar Fermentierungseinrichtung mit grossem volumen
US4670397A (en) * 1986-02-05 1987-06-02 Phillips Petroleum Company Fermentation apparatus
EP0316910A1 (fr) * 1987-11-17 1989-05-24 Phillips Petroleum Company Dispositif d'échange de chaleur
EP1031373A2 (fr) * 1999-02-27 2000-08-30 Metallgesellschaft Aktiengesellschaft Réacteur et procédé pour la conversion catalytique de mélanges gazeux
WO2002026370A1 (fr) * 2000-09-26 2002-04-04 Shell Internationale Research Maatschappij B.V. Pieces rapportees en forme de tige pour tubes de reacteur

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007012112C5 (de) * 2007-03-13 2016-08-18 Loritus Gmbh Vorrichtung und Verfahren zur hydrothermalen Karbonisierung von Biomasse
WO2009042274A1 (fr) * 2007-09-26 2009-04-02 General Electric Company Dispositifs de refroidissement radiant et procédés d'assemblage de ceux-ci
US8376034B2 (en) 2007-09-26 2013-02-19 General Electric Company Radiant coolers and methods for assembling same
JP2011503514A (ja) * 2007-11-16 2011-01-27 ゼネラル・エレクトリック・カンパニイ シンガス冷却器プラテンの製造方法及びシンガス冷却器プラテン
US20110186278A1 (en) * 2008-09-23 2011-08-04 Methanol Casale S.A. Heat exchanger with radially arranged elements for isothermal chemical reactors
US8460614B2 (en) * 2008-09-23 2013-06-11 Methanol Casale S.A. Heat exchanger with radially arranged elements for isothermal chemical reactors
EP2246109A1 (fr) * 2009-04-29 2010-11-03 Methanol Casale S.A. Réacteur de tube isotherme
WO2010124916A1 (fr) * 2009-04-29 2010-11-04 Methanol Casale Sa Réacteur tubulaire isotherme
US8673232B2 (en) 2009-04-29 2014-03-18 Methanol Casale Sa Isothermal tube reactor
JP2017507015A (ja) * 2014-01-02 2017-03-16 ハンワ ケミカル コーポレイション バッフルを備えた回分式反応器
EP3090800A4 (fr) * 2014-01-02 2017-08-02 Hanwha Chemical Corporation Réacteur discontinu comprenant une chicane

Also Published As

Publication number Publication date
DE112004001184D2 (de) 2006-04-20
CN1822899A (zh) 2006-08-23
CH696802A5 (de) 2007-12-14
DE202004021361U1 (de) 2007-11-22

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