EP3439777A1 - Réacteur et procédé pour convertir des réactions limitées par l'équilibre réactionnel - Google Patents

Réacteur et procédé pour convertir des réactions limitées par l'équilibre réactionnel

Info

Publication number
EP3439777A1
EP3439777A1 EP17733986.8A EP17733986A EP3439777A1 EP 3439777 A1 EP3439777 A1 EP 3439777A1 EP 17733986 A EP17733986 A EP 17733986A EP 3439777 A1 EP3439777 A1 EP 3439777A1
Authority
EP
European Patent Office
Prior art keywords
reactor
hollow shaft
stirring blade
gas
phase zone
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.)
Withdrawn
Application number
EP17733986.8A
Other languages
German (de)
English (en)
Inventor
Jakob Albert
Manfred Baldauf
Jenny Reichert
Katharina Meltzer
Alexander Tremel
Peter Wasserscheid
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of EP3439777A1 publication Critical patent/EP3439777A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • B01J8/0242—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 flow within the bed being predominantly vertical
    • B01J8/0257—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 flow within the bed being predominantly vertical in a cylindrical annular shaped bed
    • 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
    • B01J8/0278—Feeding reactive fluids
    • 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
    • B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
    • B01J8/10—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by stirrers or by rotary drums or rotary receptacles or endless belts
    • 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
    • B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
    • B01J8/20—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium
    • B01J8/22—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid
    • B01J8/222—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles with liquid as a fluidising medium gas being introduced into the liquid in the presence of a rotating device only
    • 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
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00805—Details of the particulate material
    • B01J2208/00814—Details of the particulate material the particulate material being provides in prefilled containers
    • 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
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00823—Mixing elements
    • B01J2208/00858—Moving elements
    • B01J2208/00876—Moving elements outside the bed, e.g. rotary mixer
    • 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
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00884—Means for supporting the bed of particles, e.g. grids, bars, perforated plates
    • 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
    • B01J2208/00796—Details of the reactor or of the particulate material
    • B01J2208/00938—Flow distribution elements

Definitions

  • the invention relates to a process for the conversion of equilibrium limited reactions according to the preamble of claim 1 and a reaction apparatus for imple ⁇ wetting of equilibrium-limited reactions according to the preamble of claim 7.
  • the object of the invention is to provide a process and a reaction plant for the implementation of equilibrium-limited reactions which, compared to the prior art, bring about a higher yield in the reaction process and require less technical effort.
  • the object is achieved in a reactor for the implementation of equilibrium-limited reactions according to claim 1 and a method for the implementation of equilibrium-limited reactions according to claim 6.
  • the reactor according to the invention for the reaction of equi ⁇ weight limited reactions comprises a reaction chamber with a Eduktzu thoroughlyvoriques, an outlet device for reaction products and a device for receiving catalyst material and a stirring device.
  • the reactor is characterized in that the stirring device includes a hollow shaft at one end thereof a Gaseintrittsöff ⁇ voltage is provided and that a first stirring blade is provided with a gas outlet opening at the hollow shaft. Furthermore, to the hollow shaft in the area of the device for holding the catalyst material, a second blade on ⁇ sorted.
  • the second impeller which is arranged in the region of the catalyst material causes a better mainly horizontal gas mixing in this area, and therefore, again vortexed for the reactants which are present in the gas mixture to the catalyst material ⁇ the, so again a continuous reaction process is guaranteed ,
  • a liquid phase zone is seen ⁇ , wherein above this liquid phase zone, a Gaspha ⁇ Senzone present.
  • the first impeller, the stirring ⁇ wings are arranged with the gas outlet openings in the region of the liquid phase zone and the second impeller is arranged in the gas phase.
  • the Pro ⁇ -products present in the gas mixture is absorbed by the sorbent.
  • the remaining gas of the gas mixture when it emerges from the liquid phase zone, ie ascend gas bubbles and pass into the gas phase zone, results in a high proportion of educts.
  • the second impeller is in one embodiment of the invention preferably in the form of a Radial detergentrlochers ⁇ staltet, resulting in that the second impeller from the hollow shaft of the gas mixture in particular carries radially out ⁇ Shen and thereby in the range of the catalyst material, a good turbulence generated.
  • the extent of the first impeller radial to the hollow shaft between 20% and 30% of the total reactor diameter.
  • extension and impeller means the weites ⁇ th diameter over which extend the one or more stirring blades with respect to the hollow shaft.
  • impeller is to be understood in general, since a large number of various stirring devices may be appropriate. Sigma stirrers, alpha stirrers, INTERMIG stirrers, MIG stirrers or disk stirrers may be used for the flow of the gas mixture, all of which have different geometrical constructions.
  • the term impeller means any suitable for the distribution of the gas mixture and the circulation of the liquid phase zones device which is arranged on the hollow shaft. In a further embodiment of the invention is the
  • Reactor designed in such a way that it moves the agitating blade in the operating state in such a way that a web speed of the agitating blade is between 5 m / s and 15 m / s.
  • Another component of the invention is a process for the implementation of equilibrium-limited reactions according to claim 7, comprising the following steps: First, a catalyst material is arranged in the reactor, further one or more starting materials is introduced into the reactor, wherein it reacts for the reactants comes to a product and where ⁇ in a stirring device is provided, through which a gas mixture, is sucked in from an upper portion of the reactor and is passed through a hollow shaft in a lower portion of the reactor.
  • the gas mixture is discharged from the gas outlet openings in a mounted on the hollow shaft first impeller.
  • the gas mixture thus discharged is passed from there back into an upper region of the reactor, wherein it flows through the catalyst material located in the reactor.
  • a further stirring blade is provided on the hollow shaft, through which a turbulence of the gas mixture is brought about in the region of the catalyst material.
  • the circulation results in a flow in the gas mixture and thus in the reaction space, which makes it possible to obtain an isobaric operation at high pressures.
  • a liquid phase zone is present, in particular with a sorbent as a liquid, caused by the introduction of gas in the liquid phase zone of gas bubbles, which have a high mass transfer ⁇ surface with the liquid, preferably in the sorbent, and thus an effective mass transfer, So the products allow to sorbent.
  • ⁇ det a good mixing instead of liquid.
  • FIG. 1 shows a reactor with a catalyst material and egg ⁇ ner stirring device, wherein the stirring device is driven in the reactor from below,
  • Figure 2 shows a reactor analogous to that of Figure 1, in which a
  • FIG. 3 shows a reactor as in FIG. 1, wherein the reactor is operated in such a way that the products are gaseous in the prevailing atmosphere.
  • the reactor 2 according to FIG. 1 has a reaction space 4, an educt feed device 6 for the supply of starting materials 7 and an outlet device 8 for products 10. Furthermore, the reactor 2 comprises a device 12 for receiving catalyst material 14.
  • the device 12 may be configured as a basket or net, wherein the catalyst material is present.
  • the catalyst material 14 can be used as a bed in the Vorrich- However, it may also be arranged to improve the flow on multiple levels or layers in the device 12.
  • the reactor 2 comprises a stirring device 16, which in turn comprises a hollow shaft 18, wherein a gas inlet opening 20 is provided on the hollow shaft 18 in an upper region 27 of the reactor.
  • a first impeller 22, which has a gas outlet openings 24, is arranged on the hollow shaft 18 in a lower region 28 of the reactor.
  • the gas mixture 38 which is a mixture of gaseous reactants and gaseous products 7 10 basically in Wesentli ⁇ Chen, introduced into a liquid phase zone 30th
  • This liquid phase zone 30 comprises a Sorp ⁇ tion means 40 which is present here in a liquid form and serves substantially to absorb the reaction products from the reactor 10 and ultimately derive from the reactor. 2
  • the liquid sorbent 40 collects in the liquid phase zone 28, which does not exclude that in the remaining reaction ⁇ space 4 liquid sorbent 40, for example in
  • the sorbent 40 is also discharged through the outlet device 8 for products 10 and is supplied to a separation process which is not described in more detail here. Accordingly, the sorbent is 40 just ⁇ if telzuchtvortechnisch by a not further described here Sorptionsmit- back to the reactor 2 and the reaction chamber 4 is supplied.
  • the stirring device 16 thus described is a self-priming gas introduction stirrer, through which gas is passed from the upper reaction region into the lower region 28 of the reactor. As described, the gas bubbles emerging from the second impeller thus facilitate the connection of the products present in these gas bubbles with the sorbent.
  • a second impeller 26 is provided on the hollow shaft 18, the insbeson ⁇ particular is designed as Radialrrocker.
  • Examples of such a stirrer with a mainly radially generated conveying direction are disc stirrers, impeller stirrers,
  • the second impeller 26 in this case has an extension with respect to the Reaktor admirals ⁇ sers, which affects between 20 and 35% of this reactor diameter.
  • the web speed of the second impeller be ⁇ carries it between 3 m / s to 6 m / s.
  • the gas mixture 38 which is provided above the region in which the catalyst material 14 is arranged, is accordingly enriched in reaction products.
  • the system comprises reactants that were not converted in the equilibrium state of the reaction at Kataly ⁇ sator material 14 and reaction production ⁇ te.
  • This gas mixture 38 is again separated by the stirring device. sucked and occurs in the gas inlet opening 20 again in the hollow shaft 18, wherein the cycle process described begins again.
  • the first impeller has an extension 34 which is between 20% and 30% of the diameter 36 of the reactor space.
  • FIG. 1 shows a stirring device 16 which has a drive 29 in the lower region 28 of the reactor 2.
  • FIG. 1 shows a stirring device 16 which has a drive 29 in the lower region 28 of the reactor 2.
  • a drive 29 of the stirring device 16 is arranged in the upper region 27.
  • the reactor 2 according to Figure 3 differs from the two reactors according to Figures 1 and 2 in that there the thermodynamic conditions are adapted in a way that no sorbent is required 40, but that the Pro ⁇ -products 10 in gaseous form, be removed from the reaction space 4.
  • the gas inlet opening 20 of the hollow shaft is designed so that it is mounted outside of the reaction space 4.
  • the liquid phase for example, could be in the form of a heat transfer oil Darge ⁇ provides, but which is not shown here in this illustration.
  • reaction products 10 such as water and Metha ⁇ nol may additionally condensed out and the reaction heat to be dissipated.
  • the remaining gas stream is then sucked by the first impeller and recycled back into the reaction chamber 4 to ⁇ .
  • the gas recirculation is or any additional blowers only through the stirring device 16 upright preserver ⁇ th.
  • the continuous removal of condensed reaction products 10, the reaction equilibrium is shifted analogously to the pick-up by the absorbent. additional The condensation of products in the region outside of the reaction space 2 could lead to a pressure drop, which then supports the flow of the gas stream.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

La présente invention concerne un réacteur pour convertir des réactions limitées par l'équilibre réactionnel, le réacteur présentant une chambre réactionnelle (4) dotée d'un dispositif d'introduction d'éduit (6) ; un dispositif de sortie (8) pour les produits réactionnels (10) ; et un dispositif pour prendre en charge la matière catalytique (14) et un dispositif d'agitation (16). L'invention est caractérisée en ce que le dispositif d'agitation (16) comprend un arbre creux (18) à une extrémité duquel se trouve une ouverture d'entrée de gaz (20), et en ce que sur l'arbre creux (18) se trouve une première ailette d'agitation (22) dotée d'ouvertures de sortie de gaz (24). Par ailleurs, une seconde ailette d'agitation (26) se trouve sur l'arbre creux (18) dans la zone du dispositif (12) pour prendre en charge la matière catalytique (14).
EP17733986.8A 2016-06-09 2017-06-09 Réacteur et procédé pour convertir des réactions limitées par l'équilibre réactionnel Withdrawn EP3439777A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016210224.9A DE102016210224A1 (de) 2016-06-09 2016-06-09 Reaktor und Verfahren zur Umsetzung von gleichgewichtslimitierten Reaktionen
PCT/EP2017/064080 WO2017212016A1 (fr) 2016-06-09 2017-06-09 Réacteur et procédé pour convertir des réactions limitées par l'équilibre réactionnel

Publications (1)

Publication Number Publication Date
EP3439777A1 true EP3439777A1 (fr) 2019-02-13

Family

ID=59253461

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17733986.8A Withdrawn EP3439777A1 (fr) 2016-06-09 2017-06-09 Réacteur et procédé pour convertir des réactions limitées par l'équilibre réactionnel

Country Status (7)

Country Link
US (1) US10441931B2 (fr)
EP (1) EP3439777A1 (fr)
CN (1) CN109310968A (fr)
AU (1) AU2017276766B2 (fr)
CL (1) CL2018003488A1 (fr)
DE (1) DE102016210224A1 (fr)
WO (1) WO2017212016A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK3556451T3 (da) 2018-04-20 2020-08-31 Siemens Ag Fremgangsmåde til drift af et reaktoranlæg
EP3556460A1 (fr) 2018-04-20 2019-10-23 Siemens Aktiengesellschaft Réacteur de mise en uvre de réactions à équilibre réduit
CN109046219B (zh) * 2018-09-19 2019-06-07 亚洲创建奕宏化工（河源）有限公司 自清洁环保型胶体反应装置
DE102019201172A1 (de) 2019-01-30 2020-07-30 Siemens Aktiengesellschaft Reaktorkaskade und Verfahren zum Betreiben einer Reaktorkaskade

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Also Published As

Publication number Publication date
AU2017276766A1 (en) 2018-12-06
WO2017212016A1 (fr) 2017-12-14
US10441931B2 (en) 2019-10-15
CL2018003488A1 (es) 2019-02-15
US20190217267A1 (en) 2019-07-18
AU2017276766B2 (en) 2020-04-16
DE102016210224A1 (de) 2017-12-14
CN109310968A (zh) 2019-02-05

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