CN102211003A - Temperature control device and method for controlling the temperature of a tube reactor - Google Patents
Temperature control device and method for controlling the temperature of a tube reactor Download PDFInfo
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- CN102211003A CN102211003A CN2011100903461A CN201110090346A CN102211003A CN 102211003 A CN102211003 A CN 102211003A CN 2011100903461 A CN2011100903461 A CN 2011100903461A CN 201110090346 A CN201110090346 A CN 201110090346A CN 102211003 A CN102211003 A CN 102211003A
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- carrying agent
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- 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
- B01J8/06—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 in tube reactors; the solid particles being arranged in tubes
- B01J8/067—Heating or cooling the reactor
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- 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
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- 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
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- 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
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- 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
- B01J2208/00256—Controlling the temperature by indirect heat exchange with heat exchange elements outside the bed of solid particles in a heat exchanger for the heat exchange medium separate from the reactor
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- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The invention provides a temperature control device for controlling the temperature of a tube bundle reactor for catalytic reactions using temperature-adjusting gas. The tube bundle reactor comprises a catalyst chamber and a heat carrier chamber adjacent to the catalyst chamber and separated from the catalyst chamber. The temperature control device communicates with the heat carrier inlet and the heat carrier outlet of the heat carrier chamber. The temperature-adjusting gas flows through the temperature control device and the heat carrier chamber in the circuit. The temperature control device comprises a compression gas supply device, a heating device for temperature-adjusting gas and a conveying device for temperature-adjusting gas. The temperature control device is arranged on a transportable frame, which can also be conveyed to various reactor systems as a mobile temperature control device. Meanwhile, a temperature control method for controlling the temperature of a tubular reactor is also provided.
Description
Technical field
The present invention relates to a kind of register of temperature that is used for being used for the tube bundle reactor of catalytic reaction by the temperature adjustment gas regulation, wherein said tube bundle reactor comprises that a catalyst case and is in abutting connection with described catalyst case, but the heat-carrying agent chamber that separates with described catalyst case, wherein said register can be connected with the heat-carrying agent outlet is mobile with the heat-carrying agent inlet of described heat-carrying agent chamber, described temperature adjustment gas flows through register and the heat-carrying agent chamber in closed circuit, and described register comprises: the Compressed Gas feedway, the heater and the conveying device that is used for described temperature adjustment gas that are used for described temperature adjustment gas.The present invention relates to a kind of method of temperature of utilizing this register adjustable pipe bundle reactor in addition.
Background technology
In order to implement heterogeneously catalysed gas phase reactions for example oxidation technology, hydrogenation process, dehydrogenating technology, nitriding process, alkylation process, in chemical industry, the tube bundle reactor that particularly has the isothermal fixed bed has been proved to be favourable as special fixed bed reactors structural type.
In first embodiment, tube bundle reactor comprises the reactor master unit, and this master unit has the bundle of reaction tubes of vertical setting, wherein contains granular catalyst mostly and also contains inert material in case of necessity.Reaction tube is managed the bottom and is managed in the bottom down on its end is fixed on hermetically.Tube bank is surrounded by shell of reactor, described shell of reactor and each pipe bottom be tightly connected and with its formation shell chamber, heat-carrying agent flows around reaction tube in this shell chamber.In this case, the shell chamber also is called as the heat-carrying agent chamber, and this pipe is called catalyst case.Described reaction can be the heat absorption or heat release.Reaction gas mixtures flows to reaction tube via the reactor cover that covers a pipe bottom and discharges from reaction tube via the reactor cover that covers another pipe bottom as product gas mixture.
In order to obtain stable reaction condition, strive for reaching around the almost stationary temperature of the heat-carrying agent of reaction tube and good heat transmission.For the necessary auxiliary equipment of tube bundle reactor work, for example EGR, heat exchanger and heater in being arranged on along separate routes mostly are usually located at the outside of shell of reactor and utilize short as far as possible connecting line to be directly connected on the shell of reactor.Correspondingly, heat-carrying agent is entering shell of reactor and is flowing out from shell of reactor near another pipe bottom near the one pipe bottom.
Selection to the heat-carrying agent that is used for this tube bundle reactor is determined by the maximum temperature that occurs at work.During lower temperature under about 300 ℃, cooling can utilize boiling water to realize.At this, the pressure in the heat-carrying agent chamber can be increased to about 100bar.Because this boundary condition, reactor must be designed to have the pressure vessel of relatively thick degree.The advantage of this type of reactor be in the heat-carrying agent chamber very even temperature distribute and transmit in the extraordinary heat of shell side, can design mobile guiding device simply thus.
In another kind of embodiment, catalyst case and heat-carrying agent chamber can exchange.In other words, pipe can be designed to cooling tube and flow through by heat-carrying agent.Catalyst is arranged in the shell chamber of cooling tube.In this case, pipe is called the heat-carrying agent chamber, and the shell chamber is called catalyst case.
In about 250 ℃ to 650 ℃ temperature range, come heat extraction through molten salt bath commonly used.This heat-carrying agent has low-down steam pressure and moves in stress-free mode at work.For about temperature below 400 ℃, can use organic heat-carrying agent, for example heat-carrying agent oil.The tube bundle reactor that is used for this heat-carrying agent type is for example known from DE 2 207 166 A1 or EP 1 569 745 A1.
If when starting or stopping using tube bundle reactor and during operation, also must regulate and control (konditionieren) catalyst, then special problem may occur." regulation and control " are interpreted as, make catalyst have certain characteristic.
Therefore, may be necessary be: make catalyst be transformed into the activated state that is used to produce before starting tube bundle reactor or when starting tube bundle reactor from inactive state, this inactive state for example by transportation be filled into catalyst case in the time with air in contacting of oxygen produce.Otherwise what possibility was necessary is: make active catalyst deactivation so that change reliably and discharge when stopping using tube bundle reactor or after stopping using tube bundle reactor.
In addition, in different chemical reactions, activity of such catalysts weakens at work gradually, yet catalyst is in this same undesirably deactivatedization.This may be owing to different reasons.Catalyst for example may be As time goes on oxidized or catalyst surface be coated with carbon black or other pollutant.In order to ensure the production of economy, must recover activity of such catalysts.It is complicated and expensive fully more changing catalyst, therefore as far as possible preferably regulates and control catalyst in position, and described regulation and control also are called regeneration in this case.Regeneration is relevant with each technical process at interval.
Described regulation and control realize that in the following manner that is: guiding regulation and control gas passes through catalyst inserts (Katalysatorsch ü ttung) in the short time of several hours to several days orders of magnitude.This regulation and control gas has composition, the temperature and pressure that is suitable for corresponding technology.Oxidation reaction or reduction reaction appear.Each influence factor causes the corresponding structure measure.Composition and pressure can change well by the conversion equipment in the reactor upstream usually.
The subject matter of each modulation process process is: all will follow a temperature of determining on each position of catalyst inserts.For this reason, only the temperature at reactor upstream regulation regulation and control gas is not enough, because regulation and control gas has just reached after short input distance and the identical temperature of temperature in the reactor.In addition, the modulation process process is neither endothermic nor exothermic mostly.Therefore, be indispensable from the heat-carrying agent side to the temperature adjustment of catalyst inserts.Difficult point is now: each heat-carrying agent system specifically is matched with corresponding production technology for economic reasons usually, and therefore required regulating and controlling temperature also can not be conditioned apparently higher than the reaction temperature in the production technology.Therefore, in regulation and control duration, be used to produce or the heat-carrying agent of working will replace by the heat-carrying agent that can follow regulating and controlling temperature.
Reaction temperature be below 300 ℃, for example can move at boiling water in the chemical production processes of carrying out in (mode) because temperature is higher than regeneration technology 400 ℃, the short time, only molten salt bath is used for whole service as heat-carrying agent.Yet it is more expensive than direct boiling water cooling as heat-carrying agent to use molten salt bath.
Known a kind of simpler and method that cost is more economical from DE 38 19 357 A1.This method relates to the regeneration of pellet type catalyst in the reaction tube of tube bundle reactor, and this tube bundle reactor is used for the pressure of 20bar to 150bar and cooling fluid that its reaction tube is crossed the shell chamber by percolation is cooled off.In this regeneration technology, at first from the shell chamber, remove cooling fluid, will be heated to temperature 100 ℃ to 400 ℃, that be higher than the temperature under working condition with the catalyst that the regeneration gas of heat directly contacts then.Then the heat medium of gaseous state or steam-like is introduced in the shell chamber, the temperature difference between the reaction tube outside and shell of reactor inboard is maintained at 100 ℃ at the most thus.Before regeneration (technology) beginning, can utilize the nitrogen wash catalyst of heat.The nitrogen of heat or overheated water vapour for example can be used as heat-carrying agent.Utilize valve to realize the transformation of duty.Other details of employed heat-carrying agent system repeats no more in regeneration technology.Yet in this method of temperature control, the temperature of the heat medium of gaseous state or steam-like its from the shell chamber inlet until the outlet stroke on marked change, thereby the longitudinal temperature distribution along reaction tube is very inhomogeneous, and this point is disadvantageous for the even regeneration of catalyst.
WO2009/118372 A1 has described a kind of method, and this method is used for utilizing the gas that comprises hydrogen to small part to make the catalyst original position regeneration that contains cobalt and titanium of deactivatedization in fischer-tropsch process at fixed bed by the oxidation step and the reduction step subsequently of temperature between 580 ℃ and 670 ℃.Catalyst is preferably placed in the reaction tube of tube bundle reactor, and described reaction tube is cooled off by water and/or steam at regeneration period on shell side.In stable operation, fischer-tropsch process temperature between 100 ℃ and 600 ℃ and pressure under the situation between the 5bar to 150bar, implement.No longer the heat-carrying agent system is additionally instructed.
Known a kind of method and reactor that is used to implement the endothermic reaction from DE 34 39 176 A1.At this, utilize the catalyst of endothermic reaction regeneration in second reactor in a reactor simultaneously.The document proposes: the CO that guide heat-carrying agent in closed circuit, for example compresses
2Described register has air blast and heater.Two reactors are changed mutually.The regeneration of the catalyst in the spatially remote each other isolated reactor assembly does not have reference significance at this.
Always efficient is lower and/or cost is higher to be used for during catalyst inserts regulation and control known solution that the temperature of tube bundle reactor is regulated, particularly the temperature of different reactor system regulated.
Summary of the invention
Therefore the objective of the invention is: propose a kind of register and method, the temperature that is used for adjustable pipe bundle reactor and different reactor assembly, especially for regulation and control (Konditionieren) tube bundle reactor and different reactor assemblies, even temperature distributes and high heat discharge or high heat input to utilize this register and method can obtain very, simultaneously can reduction technology and cost.
According to the present invention, described purpose realizes in the following manner by the register that starts described type: described register is installed on the transportable framework and can be transported to different reactor assemblies as register movably.In addition according to the present invention, the described purpose also method of the feature by having claim 9 realizes.
According to the present invention, this register is installed on the transportable framework.This has realized the very compact design of register owing to the structure space that dwindles.Therefore, this register can be transported to different reactor assemblies in simple mode.By on a plurality of reactor assemblies, using movably register successively, reduced the correlative investment cost of each reactor assembly.Preferably the basal plane with the standard freight container is suitable at this for the external dimensions of this transportable framework, and for example width is 2.438m (8 feet), and length is 6.058m (20 feet) or 12.192m (40 feet).
The present invention utilizes the following fact: temperature adjustment power obviously improves by the Compressed Gas feedway, and obviously reduce in the required structure space of register this moment.Because gas supply device is the Compressed Gas feedway, so volume flow and then flowing velocity are less when mass flow is identical.Therefore, when mass flow was identical, pressure loss approximately linear ground raise along with pressure and reduces.
On the contrary, when given reactor assembly flow cross section, the higher quality flow is circulated.The higher quality flow means the higher heat absorption ability and the higher heat transmission on the reaction tube wall of temperature adjustment gas.At this, the temperature of the Compressed Gas in tube bundle reactor only improves a little, thereby temperature not only all distributes on the cross section of tube bundle reactor but also along the longitudinal direction of reaction tube extremely equably.Therefore, can obviously improve temperature adjustment power, and need not excessively to improve the driving power of recycle gas blower.Can save the locus and the weight of drive motors and its electric supply installation thus.Simultaneously, can select the internal duct of register and the flow cross section of equipment littlelyr, reduce its structure space thus.
Preferably, described Compressed Gas feedway has compressor.Therefore, the compressed gas physical efficiency produces in mode simple and cost economy.
In a kind of favourable design of the present invention, the pressure of described Compressed Gas is in the scope of 3bar to 100bar, preferably in the scope in the scope of 5bar to 50bar, particularly preferably in 10bar to 30bar.In this pressure limit, particularly in the pressure limit of 10bar to 30bar, realized the obvious rising of temperature adjustment power, and only needed less to improve the driving power of recycle gas blower.
Preferably, described register has two and is used to be connected to the heat-carrying agent inlet of described heat-carrying agent chamber or the connecting line in the heat-carrying agent outlet, and at least one in the described connecting line has the elasticity middleware.By the connecting portion of this flexibility/flexibly, needn't be matched with the connecting portion of reactor assembly for the compensated position tolerance bothersomely.In the movably design of register, can easily be connected on the different reactor assemblies by this measure.
At this, described elasticity middleware have be used to absorb internal pressure, adjustable tension force unloading portion.Thus, the elasticity middleware can absorb internal pressure in simple mode, and can not add load to pipeline component subsequently.
Preferably, described temperature adjustment gas comprises air, nitrogen, carbon dioxide, water vapour or its mixture.Can be easily so the cost less expensive obtain this gas.
In a kind of favourable embodiment of the present invention, described register comprises that one is used to cool off the cooling device of described temperature adjustment gas, and described cooling device is designed to: water is directly sprayed in the temperature adjustment gas return path.Thus can be simply and the rated temperature of adjusting/setting temperature adjustment gas apace.
Preferably, described register comprises the adjusting device of the temperature and pressure that is used to regulate described temperature adjustment gas.Thereby the temperature and pressure that can keep temperature adjustment gas very reliably.
In a kind of favourable embodiment of the method according to this invention, for the catalyst inserts in the tube bundle reactor is regulated and control, the heat-carrying agent loop of this tube bundle reactor was flow through by heat-carrying agent liquid or the part evaporation in the production phase, during the temperature adjustment gas circulation, temperature with described temperature adjustment gas---and, where necessary, pressure---be increased to the initial temperature of regulation process; Guiding regulation and control gas is by the catalyst inserts.The regulation and control of catalyst inserts also comprise used catalyst inserts regeneration.Utilize this measure to regulate and control catalyst inserts in tube bundle reactor in position in simple mode.Because Compressed Gas, the temperature of temperature adjustment gas not only all distribute very equably transverse to reaction tube but also along its longitudinal direction, thereby regulation process also carries out equably in whole catalyst inserts inside, and have guaranteed the even quality of catalyst inserts thus.In order to help the course of work, in the step d) of claim 9, can before regulation and control gas, pass through the catalyst inserts by the guiding hot gas.
As mentioned above, according to the present invention, register is installed on the transportable framework, and register is transported to tube bundle reactor to be used to carry out temperature adjustment, is transported again after the temperature adjustment process finishes.Avoided thus otherwise must be arranged on the expense of the fixedly register in each tube bundle reactor.Reduce the correlative investment cost of the register of each tube bundle reactor by this way significantly.
Description of drawings
Exemplarily elaborate the present invention by accompanying drawing below.Wherein show:
Fig. 1 illustrates the flow chart according to first embodiment of register of the present invention, in the heat-carrying agent loop of this register access tube bundle reactor;
Fig. 2 a illustrates side view according to second embodiment of register of the present invention with schematic diagram, in the heat-carrying agent loop of this register access tube bundle reactor;
Fig. 2 b is to illustrate the vertical view of second embodiment among the 2a that publishes picture.
The specific embodiment
Fig. 1 schematically shows to have according to the parts of the embodiment of register 102 of the present invention and the flow chart of tube bundle reactor 100.
Be designed to singly distinguish at the tube bundle reactor shown in this 100.Tube bundle reactor 100 has a plurality of reaction tubes 103 that are filled with catalyst, and this reaction tube is to restrain 104 arranged in form.Reaction tube 103 is fixed on pipe bottom 105 hermetically and manages in the bottom 106 down.Pipe bottom 105,106 is connected with cylindricality shell of reactor 107 on its perimeter, and this shell of reactor 107 surrounds tube bank 104.Pipe bottom 105,106 and the shell of reactor common shell chambers 108 that form 107, the heat-carrying agent 109 that is in this shell chamber 108 in the operate as normal drenches reaction tube 103 around dashing.Tube bank 104 for example can be designed to have the inner chamber of no pipe in a tubular form or circlewise on entire cross section.Usually between the tube bank 104 of annular and shell of reactor 107, be formed with the outer shroud of a no pipe.Last pipe bottom 105 can be connected with top airscoop shroud 110 by upper flange, and 106 is connected with bottom hood 111 by lower flange bottom managing down.When on reaction gas side and/or heat-carrying agent side, having high workload pressure, can advantageously substitute the flange connection with being welded to connect, as illustrated in fig. 1.Reaction tube 103 feeds in airscoop shroud 110 and the hood 111.Airscoop shroud 110 has air inlet pipe 112, and hood 111 has blast pipe 113.Heat-carrying agent 109 is guided through the shell chamber 108 of tube bundle reactor 100 by the guide of flow device that is fit to.Heat-carrying agent shown in reactor 100 in distribute or accumulate on the perimembranous of reactor 100 by upper and lower annulus line 114,115 and corresponding upper and lower connecting line 116,117.Under, (being positioned at the right side in Fig. 1) first that be connected to annulus line 114,115 in this unshowned heat-carrying agent system take on 118, this heat-carrying agent system has EGR, register and other possible parts.
Below the operation that is used for first duty and second duty is described.At this, first duty is interpreted as the normal operating conditions of tube bundle reactor 100, reacting gas 130 enters in the reactor 100 in this normal operating conditions, in this reactor 100, carry out chemical reaction, and then from these reactor 100 outputs, wherein the heat-carrying agent 109 of circulation is controlled reaction temperatures in the shell chamber 108 of tube bundle reactor 100.Second duty is interpreted as regulation process, and gas 131 is crossed reactor 100 at the pipe effluent in this regulation process, and the composition of the gas of using in this gas 131 and first duty is different.In addition, in second duty, heat-carrying agent 132 has the characteristic different with the heat-carrying agent in first duty.Particularly, this heat-carrying agent is a Compressed Gas, for example has other composition, other temperature or the combination of described characteristic in addition.Register 102 according to the present invention is preferred for this second duty.Under this duty, the gas that for example is used for regenerated catalyst is conducted through reaction tube 103, and under the situation of using the gaseous state heat-carrying agent, the temperature of heat-carrying agent 132 is enhanced apparently higher than the temperature of first duty.
Under first duty, reacting gas 130 enters in the top airscoop shroud 110 via top air inlet pipe 112, is distributed to there on the pipe bottom 105, and the bottom blast pipe 113 via reaction tube 103 and bottom hood 111 flows out from reactor 100 again.Equally also directing reaction gas 130 passes through reactor 100 from bottom to top.
The heat-carrying agent 109 of the reaction utilization circulation in shell chamber 108 that finishes in first duty is controlled.At this, heat-carrying agent 109 is transfused in lower annular pipeline 115 or the upper, annular pipeline 114 and exports from corresponding another annulus line 114,115 again.Under the heat-carrying agent that utilizes evaporation, situation that preferred water is cooled off exothermic reaction, liquid heat-carrying agent 109 is transfused in the lower annular pipeline 115, and is distributed on the perimembranous there.Heat-carrying agent is transported in the shell chamber 108 of reactor 100 and utilizes the guide of flow device (not shown at this) that is fit to be distributed to equably on the cross section of reactor 100 there by a plurality of bottoms connecting line 117.Liquid-steam-the mixture that forms in reactor 100 is directed in the upper, annular pipeline 114 and from this upper, annular pipeline by a plurality of tops connecting line 116 and takes over discharge from reactor 100 by a top.
Compressed Gas is directed in the loop of sealing as the heat-carrying agent 132 of second duty.At this, Compressed Gas 132 comprises air, nitrogen, carbon dioxide, water vapour or their mixture.Utilize first recycle gas blower 119 that Compressed Gas is transported in the tube bundle reactor 100.In order to ensure good heat transmission, preferably utilize guide of flow device lateral guiding Compressed Gas 132 through tube bank 104, go back the application specific device where necessary.Compressed Gas 132 flows out from reactor 100 by top connecting line 116, accumulates in the upper, annular pipeline 114 and by this upper, annular pipeline and takes over 137 outputs from top.Mode on regulation process is decided, and heat is fed to reaction tube 103 or discharges from reaction tube.Correspondingly, Compressed Gas 132 must be cooled or heat.Under situation about cooling off, flow through cooler 120 from the Compressed Gas 132 of upper, annular pipeline 114, this cooler is preferably designed to aerial cooler.Alternatively or additionally, Compressed Gas 132 can cool off by unshowned mixing arrangement in Fig. 1, Compressed Gas 132 cools off by the direct injection of water in this mixing arrangement.
If regulation process be heat absorption, promptly absorb heat, then be that Compressed Gas 132 heats in heater 123.Then, again Compressed Gas 132 is transported in the tube bundle reactor 100 by first recycle gas blower 119.At this, can also change the serial connection sequence of parts of each series connection of register 102.Thereby this may be advantageously, that is: the heater streamwise is arranged on the downstream of first recycle gas blower or is arranged to and arranges with this first recycle gas blower is parallel.In order to remain on the operating pressure in the heat-carrying agent system, be provided with pressure regulating system 127.At this, pressure sensor 128 gaging pressures.If hypotony then improves pressure by compressor 125, this compressor is connected the position that is fit in the heat-carrying agent system.When hypertonia, then open pressure-relief valve 129.
Example as the efficient of register 102 according to the present invention and the method according to this invention activates new catalyst inserts by the radial directed heat-carrying agent, to be used for operate as normal next time in tube bundle reactor 100.Will be in situation 1 by being in the air under the environmental pressure activation and in situation 2, compare by compressed-air actuated activation.
Technical data:
13300 external diameters are that 30mm, length are the reaction tube of 8m.
Housing diameter 4900mm.
The nominal pipe diameter DN800 of the air inlet pipe of heat-carrying agent and blast pipe.
In the time of about 300 ℃, activate and discharge the heat of 200KW from reactor.
Situation 1: by conveying capacity is 50000m
3The register of/h make be under the environmental pressure, inlet temperature is that 300 ℃ air circulates.
Situation 2: by being 19000m according to of the present invention, conveying capacity
3The register of/h make be under the absolute pressure 20bar, inlet temperature is that 300 ℃ air circulates.
Table 1: relatively calculate
As what learn the result who provides from table 1, the rising of air themperature only is 3.0K in situation 2 for 22.7K in situation 1 in reactor.The mean heat transfer coefficient of air/reaction tube is 60W/m in situation 1
2K and be 190W/m in situation 2
2K.Therefore, when required circulating power is roughly the same, in situation 2, can obtain the obvious improvement of reaction tube 103 heat transmission and the temperature adjustment that obviously improves, be isothermal.
Shown in Fig. 2 a and Fig. 2 b according to register 102 of the present invention, as the unit that is installed in compactly on the transportable framework 139.As this illustrate, framework 139 can utilize hanger 140 to promote and rise to installed position by transport vehicle.Other version also is possible.For example framework can be designed to container and have skid and promote connecting portion, can be equipped with the towing hook of cargo vehicle on this lifting connecting portion, so that container is dragged on its loading surface.After arrangement, the connecting line 133 of connecting line 134 by on the pressure side and suction side is realized being connected.Come the reactor connecting portion of the annulus line 114,115 of autoreactor 100 must be harmonious with the link position of register 102 as well as possiblely.Yet for example, in fact only can follow this link position owing to cause the local circumstance or the tolerance of dislocation limitedly.Therefore, at least one in the connecting line 133,134 has the flange connecting portion 135,136 of band elasticity middleware 141,142.Can compensate the dislocation of connecting portion thus within the specific limits.If pipeline is connected to each other, then link position utilize elasticity middleware 141,142 by be used for absorbing internal pressure, adjustable tension force unloading portion 143,144 is fixed on its position.
Each parts of register 102 are arranged to a unit compactness, the saving position on transportable framework 139.The connecting line 133 of suction side leads to cooler 120, and this cooler is designed to aerial cooler at this.Compressed Gas pipeline 145 leads to electric heater 123 therefrom and feeds therefrom in first recycle gas blower 119, and Compressed Gas pipeline 145 leads to reactor 100 from this first recycle gas blower 119 via elasticity middleware 142.Pressure keeps by being arranged on electric heater 123 other compressors 125.Pressure piping 146 leads to the intake line that is used for first air blast 119 from compressor 125 above electric heater 123.Yet this connection (structure) can also realize on other position, for example passes through from the connecting line of compressor 125 until the weak point of the pipeline 145 between cooler 120 and electric heater 123.Not shown in this embodiment adjusting device.
Feature of the present invention is not limited to shown example.These features for example can be with the mode combination with one another that is fit to.In addition, described device can use similarly in multi-zone tube bundle reactor, for example describes in EP 1 590 076 A1, and this multi-zone tube bundle reactor can be connected to the heat-carrying agent side in one or more districts.Described device is particularly suitable for using in off working state and process.This device for example can be used for activation and regenerated catalyst, when will also being used on purpose making catalyst deactivation by oxidation technology, perhaps be used for calcine technology in addition when inside reactor is removed the catalyst of kickback.
Claims (11)
1. register of temperature that is used for being used for the tube bundle reactor of catalytic reaction by the temperature adjustment gas regulation, wherein said tube bundle reactor comprises that a catalyst case and is in abutting connection with described catalyst case but the heat-carrying agent chamber that separates with described catalyst case, wherein said register can be connected with the heat-carrying agent outlet is mobile with the heat-carrying agent inlet of described heat-carrying agent chamber, described temperature adjustment gas flows through register and the heat-carrying agent chamber in the loop, and described register comprises:
Compressed Gas feedway (125),
The heater that is used for described temperature adjustment gas,
The conveying device that is used for described temperature adjustment gas,
It is characterized in that described register is installed in that transportable framework (139) is gone up and can be transported to different reactor assemblies as register movably.
2. register according to claim 1 is characterized in that, described Compressed Gas feedway has compressor (125).
3. register according to claim 1 and 2 is characterized in that, described Compressed Gas (132) has in the scope of 3bar to 100bar, preferably in the scope of 5bar to 50bar, particularly preferably in the pressure in the scope of 10bar to 30bar.
4. according to each described register in the aforementioned claim, it is characterized in that, described register has two and is used to be connected to the heat-carrying agent inlet (138) of described heat-carrying agent chamber (108) or the connecting line (134 in the heat-carrying agent outlet (137), 133), in the described connecting line at least one has elasticity middleware (141,142).
5. register according to claim 4 is characterized in that, described elasticity middleware (141,142) have be used to absorb internal pressure, adjustable tension force unloading portion (143,144).
6. according to each described register in the aforementioned claim, it is characterized in that described temperature adjustment gas (132) comprises air, nitrogen, carbon dioxide, water vapour or their mixture.
7. according to each described register in the aforementioned claim, it is characterized in that described register comprises that one is used to cool off the cooling device of described temperature adjustment gas (132), described cooling device is designed to: water is directly sprayed in the temperature adjustment gas return path.
8. according to each described register in the aforementioned claim, it is characterized in that described register comprises the adjusting device (124,127) of the temperature and pressure that is used to regulate described temperature adjustment gas (132).
9. method of temperature that is used for regulating the tube bundle reactor (100) be used for catalytic reaction by temperature adjustment gas (132), wherein said tube bundle reactor (100) comprises that a catalyst case (103) and is in abutting connection with described catalyst case but the heat-carrying agent chamber (108) that separates with described catalyst case, described heat-carrying agent chamber (108) is the part in heat-carrying agent loop, guiding described temperature adjustment gas (132) in described heat-carrying agent loop, described method comprises the steps:
A) prepare to be transported to tube bundle reactor (100) according to each described register (102) in the claim 1 to 8 and with described register (102);
B) register (102) is received in the described heat-carrying agent loop;
C) fill described heat-carrying agent loop with given pressure with described temperature adjustment gas (132);
D) make described temperature adjustment gas (132) circulation.
10. method according to claim 9, it is characterized in that, in order to regulate and control the catalyst inserts in the described tube bundle reactor (100), the heat-carrying agent loop of described tube bundle reactor was flow through by heat-carrying agent (109) liquid or the part evaporation in the production phase, carried out following step during step d):
E) temperature of described temperature adjustment gas (132) is increased to the initial temperature of regulation process, also improves the pressure of described temperature adjustment gas (132) in case of necessity;
F) guide this regulation and control gas (131) by the catalyst inserts.
11. according to claim 9 or 10 described methods, it is characterized in that, after the temperature adjustment process finishes, transport described register (102).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201010014642 DE102010014642B4 (en) | 2010-04-12 | 2010-04-12 | Temperature control device and method for controlling the temperature of a tube bundle reactor |
| DE102010014642.0 | 2010-04-12 |
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| Publication Number | Publication Date |
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| CN102211003A true CN102211003A (en) | 2011-10-12 |
| CN102211003B CN102211003B (en) | 2013-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100903461A Expired - Fee Related CN102211003B (en) | 2010-04-12 | 2011-04-12 | Temperature control device and method for controlling temperature of tube reactor |
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| CN (1) | CN102211003B (en) |
| DE (1) | DE102010014642B4 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108097175A (en) * | 2018-01-31 | 2018-06-01 | 新疆美克化工股份有限公司 | Formaldehyde catalyst contrast experiment's self-balancing consersion unit |
| CN110603091A (en) * | 2017-04-28 | 2019-12-20 | 墨西哥氟石股份公司 | Improvements in or relating to propellant conditioning packs |
| CN112204120A (en) * | 2018-06-08 | 2021-01-08 | 曼恩能源方案有限公司 | Method for carrying out catalytic gas phase reactions, tube bundle reactor and reactor system |
| CN113499740A (en) * | 2021-08-06 | 2021-10-15 | 宁波巨化化工科技有限公司 | Method and device for reducing difference and controlling temperature of gas-phase fixed bed circulating reactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112588210A (en) * | 2021-01-15 | 2021-04-02 | 西安航天华威化工生物工程有限公司 | Benzoic anhydride reaction device capable of producing 8 ten thousand tons each year |
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| CN110603091A (en) * | 2017-04-28 | 2019-12-20 | 墨西哥氟石股份公司 | Improvements in or relating to propellant conditioning packs |
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| CN112204120A (en) * | 2018-06-08 | 2021-01-08 | 曼恩能源方案有限公司 | Method for carrying out catalytic gas phase reactions, tube bundle reactor and reactor system |
| CN112204120B (en) * | 2018-06-08 | 2022-11-29 | 曼恩能源方案有限公司 | Method for carrying out catalytic gas phase reactions, tube bundle reactor and reactor system |
| CN113499740A (en) * | 2021-08-06 | 2021-10-15 | 宁波巨化化工科技有限公司 | Method and device for reducing difference and controlling temperature of gas-phase fixed bed circulating reactor |
| CN113499740B (en) * | 2021-08-06 | 2023-03-10 | 宁波巨化化工科技有限公司 | Method and device for reducing difference and controlling temperature of gas-phase fixed bed circulating reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102010014642A1 (en) | 2011-10-13 |
| DE102010014642B4 (en) | 2014-08-07 |
| CN102211003B (en) | 2013-11-27 |
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