CN101367694B - Horizontal moving bed reactor for preparing propylene with oxygen-containing compound as raw material - Google Patents
Horizontal moving bed reactor for preparing propylene with oxygen-containing compound as raw material Download PDFInfo
- Publication number
- CN101367694B CN101367694B CN2008101208389A CN200810120838A CN101367694B CN 101367694 B CN101367694 B CN 101367694B CN 2008101208389 A CN2008101208389 A CN 2008101208389A CN 200810120838 A CN200810120838 A CN 200810120838A CN 101367694 B CN101367694 B CN 101367694B
- Authority
- CN
- China
- Prior art keywords
- bed reactor
- moving bed
- horizontal moving
- housing
- reaction
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The invention discloses a horizontal reactor of moving bed type, which produces propylene with oxygenated chemicals as raw material. The reactor includes a shell. One transverse end of the shell is provided with a raw material inlet and the other end is provided with a production outlet. A polyporous separator is arranged in the shell, which separates the internal space of the shell into at least four horizontal areas. The two areas at the end part of the shell are respectively communicated with the raw material inlet and the production outlet. The rest areas are one reaction area and a cooling area with an interval arranged in the middle. The shell corresponding to the upper end and the lower end of the reaction area is respectively provided with a catalyst inlet and a catalyst outlet. The shell corresponding to the cooling area is provided with a cooling liquid inlet. The horizontal reactor of moving bed type of the invention has simple structure, easy equipment design and manufacture, easy maintenance and convenient operation. The reaction can be controlled easily and the reaction condition can be kept well.
Description
Technical field
The present invention relates to a kind of production of propylene equipment, relating in particular to a kind of being used for the oxygenatedchemicals is the horizontal moving bed reactor of raw material production propylene.
Background technology
Oxygenatedchemicals system propylene technology is the technology that a kind of non-oil resource is produced propylene, has the major application prospect.According to numerous open source literatures, oxygenatedchemicals system propylene belongs to the strong exothermal reaction type, and the selectivity of purpose product propylene is relatively more responsive to temperature.
In the technology of the present oxygenatedchemicals system propylene of comparative maturity in the world; The MTO process using fluidized-bed reactor that UOP/Hydro develops jointly; Heat-transfer effect is better; Temperature of reaction is easier to control, but therefore catalyzer easy abrasion in fluid mapper process has relatively high expectations to the wear resisting property of catalyzer; The MTP process using fixed-bed reactor of Lurgi company; The propylene selectivity is higher; But the heat-transfer effect of fixed-bed reactor is relatively poor, so Lurgi adopts in its MTP technology and pre-reactor is set, the thin layer main reactor; Interstage cooling increases heat transfer, control reaction temperature with the whole bag of tricks such as adding Quench liquid.
Moving-burden bed reactor has the characteristics of fixed-bed reactor and fluidized-bed reactor concurrently, is applicable to the carbon distribution rapid speed but catalyzer rapidly not.One Chinese patent application 200610002109.4 discloses a kind of method of using moving bed technique and independently heavy alkene change step oxygen-containing organic compound to be converted into propylene; This method mainly circulates through by product and improves the yield of propylene; Moving-burden bed reactor is not carried out any improvement, problem such as more not mentioned how control reaction temperature.
Chinese patent 85103262 discloses a kind of multiple-stage reactor system with removable catalyst bed, and a plurality of catalytic reaction zones that vertically separate are arranged in the reactor drum, belongs to eclipsed form radially moving bed reactor type.
Chinese patent 03116945.7 discloses a kind of continuous catalytic reforming reactor drum; This reactor drum adopted one have catalytic bed bulge be reaction unit, reaction-ure inlet is positioned at the upper end of reaction unit, outlet is positioned at the lower end of reaction unit; Catalytic bed is made up of outer porous wall and interior porous wall tube; Wherein load catalyzer, catalyzer is done continuous flow from top to bottom by gravity, and reaction mass is outwards done centrifugal flowing by the center in reaction unit simultaneously; Be at flow manifold and afflux runner and do in the same way to flow from top to bottom, belong to Z type centrifugal radial moving-burden bed reactor.
This radially moving bed reactor is provided with a unique catalytic reaction zone in radial position; And all do not relate to and effectively remove by the use of thermal means; This possibly be because above-mentioned radially moving bed reactor is mainly used in catalytic reforming reaction; This reaction belongs to the heat absorption type, so the DESIGN OF REACTOR target is for reducing the thermosteresis in the device.
And be that the reaction of propylene is a thermopositive reaction with oxygenate; Above-mentioned reactor drum is not suitable for the preparation propylene, and existing moving-burden bed reactor often couples together a plurality of moving-burden bed reactors in order to solve heat dissipation problem; Add an interchanger between two adjacent moving-burden bed reactors; So not only waste the energy, and increased the complicacy of system, improved manufacturing cost.
Summary of the invention
The invention provides a kind of being used for the oxygenatedchemicals is the horizontal moving bed reactor of raw material production propylene, and this structure of reactor is simple, can solve because the problem that exothermic heat of reaction causes material temperature to raise and make the reduction of propylene selectivity.
A kind of being used for the oxygenatedchemicals is the horizontal moving bed reactor of raw material production propylene; Comprise housing, the horizontal end of housing is provided with material inlet, and the other end is provided with the product outlet; Be provided with the porous spacing body in the housing; Described porous spacing body is divided at least 4 transversely arranged zones with the enclosure interior spatial, and two zones that are positioned at shell end are communicated with reaction zone and cooling zone that all the other zones are provided with for the space respectively with material inlet and product outlet; Be respectively equipped with catalyst inlet, catalyst outlet on the pairing housing of reaction zone upper/lower terminal, the pairing housing in cooling zone is provided with cooling liquid inlet.
The form of porous spacing body can be varied, and the simplest mode is to select at least 3 screen clothes that laterally are arranged in parallel for use, and is not only simple in structure, and install easily manufacturedly, and the sieve diameter on the screen cloth need satisfy the requirement that catalyzer can not penetrate screen cloth.
Catalyzer is worn in the middle of moving process easily, can be through on the side of the adjacent reaction zone of screen cloth, perforated baffle being set, granules of catalyst be not easy through, the material gas flow is not significantly hindered, concrete diameter does not require.
Quench liquid can get into the cooling zone in several ways, the Quench nozzle for liquid that preferably installing is communicated with cooling liquid inlet in the cooling zone, and such mixing is more even.Quench nozzle for liquid quantity in single cooling zone can be any, preferred 4～64.
In order better to control the temperature of reaction zone, be provided with heat transfer tube in the reaction zone, be connected with heat transferring medium in the heat transfer tube.
The total quantity of reaction zone and cooling zone is at least three; Because reaction zone and cooling zone are to be provided with at interval; Therefore reaction zone and cooling zone quantity equate or differ one; And all do not need to cool off again after accomplishing with reaction before the raw material reaction, therefore two zones at all the other regional two ends are made as the cooling zone and seem and have little significance, therefore preferably select reflection to go quantity to Duo one than cooling zone quantity.
The porous spacing body circularizes region quantity with the enclosure interior separated by spaces can be any, but divide many more, system is more complicated, cost is also high more, preferably is divided into 11 zones, that kind just can obtain 5 reaction zones, 4 cooling zones.
The present invention also provides a kind of reaction unit of being made up of above-mentioned horizontal moving bed reactor series, parallel or series-parallel connection.
Horizontal moving bed reactor of the present invention is simple in structure, and equipment design manufacturing and maintenance are easier to, and be easy to operate, is easy to control reaction and carries out and keep reaction conditions preferably.
With oxygenate is that propylene is a thermopositive reaction; Material temperature can raise in the middle of the reaction process; Part material liquid can get into the cooling zone through cooling liquid inlet and mix the reduction material temperature with high-temperature product; Improved the selectivity of catalyzer, effectively utilized reaction heat simultaneously, further realized energy-saving and cost-reducing propylene.
This reactor drum can a plurality of catalytic reaction zones of arranged transversely, thereby reduce the thickness of single reaction zone, have reduced the temperature rise of beds, reduce single bed pressure drop simultaneously, make under the condition that is reflected at stable homogeneous more to carry out.
Description of drawings
Fig. 1 is the structural representation of horizontal moving bed reactor of the present invention.
Embodiment
As shown in Figure 1, a kind of being used for the oxygenatedchemicals is the horizontal moving bed reactor of raw material production propylene, comprises a horizontal cylindrical shell 1, and the cross section of housing 1 is other shape also, as square, oval, trapezoidal etc.Housing 1 a horizontal end is provided with material inlet 2, and the other end is provided with product outlet 3.
Be provided with 10 flat-surfaced screens that laterally are arranged in parallel 8 in the housing 1; Screen cloth 8 is 11 zones of laterally arranging continuously with the enclosure interior spatial division; Two zones that wherein are positioned at housing 1 two ends are communicated with material inlet 2 and product outlet 3 respectively; All the other 9 zones are 5 reaction zones 4 and 4 cooling zones 5, and reaction zone 4 is provided with cooling zone 5 at interval.Except that screen cloth 8, also can select other spacing body for use, like the dividing plate etc. of punching.
Because catalyzer is in reaction zone 4 continuous flows; Can be by screen cloth 8 wearing and tearing; Therefore on the side of screen cloth 8 adjacent reaction zones, installed perforated baffle 9; Porous is kept off on 9 plates little hole number and aperture size and will be set according to concrete reactor drum, make granules of catalyst be not easy through and reaction-ure fluid is not had remarkably influenced.
Can increase the quantity of reaction zone 4 and cooling zone 5 through the quantity that increases screen cloth 9, the quantity of screen cloth 8 increases, the complicacy that reactor drum is become, and manufacturing cost improves, and also can increase the treatment capacity of raw material certainly.Because unreacted raw material all need not cool off with the product that reacts completely; Therefore the quantity of reaction zone 4 cans be compared to many one of cooling zone 5 quantity most; And reaction zone 4 is to be provided with at interval with cooling zone 5, will make raw material and the obstructed overcooling of reaction after product district 5 before the reaction like this.
Be respectively equipped with catalyst inlet 6 and catalyst outlet 7 on the pairing housing 1 of reaction zone 4 upper/lower terminals; Catalyzer can be through deadweight continuous flow in reaction zone 4; For further control reaction temperature; In reaction zone 4, added the heat transfer tube (not shown), the required heat transferring medium of heat exchange can be selected methyl alcohol, water or their mixture for use.
Be positioned at two zones of housing 1 end and the housing 1 at all place, 5 lower ends, cooling zone and be provided with sweep gas import 11, sweep gas is selected water vapour, methane or other rare gas element for use.Through feeding sweep gas, prevent that liquid substances such as raw material, quench liquid from adding up in housing 1 bottom, reaches the purpose of successive reaction.
The principle of work of above-mentioned horizontal moving bed reactor is following:
Raw material gets in the housing from material inlet 2, then along transverse dispersion, penetrates each screen cloth 8 and perforated baffle 9 respectively; Catalyzer moves in reaction zone 4 under action of gravity; Raw material can carry out contact reacts with catalyzer in the middle of diffusion process, generate product propylene and other by product.Can discharge a large amount of heats in the middle of the reaction process, material temperature raises, and when raw material got into cooling zone 5, quench liquid was sprayed and reacted raw materials mix through Quench nozzle for liquid 10, reduces material temperature.Certainly owing in the reaction zone 4 heat transfer tube is arranged, more accurately control reaction temperature.Cooled raw material gets into next reaction zone 4 immediately, so constantly circulation.Final product flows out from the product outlet, obtains the product propylene through separating.
In order to realize more massive production; Can be with a plurality of above-mentioned moving-burden bed reactor series, parallel or series-parallel connections; How connecting this needs to decide according to concrete technology; Because the raw material through above-mentioned reactor drum does not have can between two adjacent moving-burden bed reactors, add an interchanger through overcooling at last, makes the temperature of reaction of next moving-burden bed reactor be more suitable for transforming propylene.
Claims (10)
- One kind to be used for the oxygenatedchemicals be the horizontal moving bed reactor of raw material production propylene; Comprise housing (1); The horizontal end of housing (1) is provided with material inlet (2); The other end is provided with product outlet (3), and housing is provided with the porous spacing body in (1), it is characterized in that: described porous spacing body is separated at least 5 transversely arranged zones with housing (1) internal space; Two zones that are positioned at housing (1) end are communicated with material inlet (2) and product outlet (3) respectively, reaction zone (4) and cooling zone (5) that all the other zones are provided with for the space; Be respectively equipped with catalyst inlet (6), catalyst outlet (7) on the pairing housing of reaction zone (4) upper/lower terminal (1), the pairing housing in cooling zone (5) (1) is provided with cooling liquid inlet.
- 2. horizontal moving bed reactor according to claim 1 is characterized in that: described porous spacing body is at least 4 flat-surfaced screens that laterally are arranged in parallel (8).
- 3. horizontal moving bed reactor according to claim 2 is characterized in that: the side of the adjacent reaction zone of described screen cloth (8) (4) is provided with perforated baffle (9).
- 4. horizontal moving bed reactor according to claim 1 is characterized in that: be provided with the Quench nozzle for liquid (7) that is communicated with cooling liquid inlet in described cooling zone (5).
- 5. horizontal moving bed reactor according to claim 4 is characterized in that: the described quantity of Quench nozzle for liquid (7) in single cooling zone (5) is 4～64.
- 6. horizontal moving bed reactor according to claim 1 is characterized in that: described reaction zone is provided with heat transfer tube in (4).
- 7. horizontal moving bed reactor according to claim 1 is characterized in that: described housing (1) is provided with the sweep gas import (11) that is communicated with two zones that are positioned at housing (1) end and lower end, cooling zone (4).
- 8. horizontal moving bed reactor according to claim 1 is characterized in that: the total quantity of described reaction zone (4) and cooling zone (5) is an odd number, and reaction zone (4) quantity is Duoed one than cooling zone (5) quantity.
- 9. horizontal moving bed reactor according to claim 1 and 2; It is characterized in that: described porous spacing body is separated into 11 zones with housing (1) internal space; Wherein 5 zones are reaction zone (4), and 4 zones are cooling zone (5), and reaction zone (4) and cooling zone (5) are provided with at interval.
- 10. reaction unit of forming by described horizontal moving bed reactor series, parallel of claim 1 or series-parallel connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101208389A CN101367694B (en) | 2008-09-18 | 2008-09-18 | Horizontal moving bed reactor for preparing propylene with oxygen-containing compound as raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101208389A CN101367694B (en) | 2008-09-18 | 2008-09-18 | Horizontal moving bed reactor for preparing propylene with oxygen-containing compound as raw material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101367694A CN101367694A (en) | 2009-02-18 |
| CN101367694B true CN101367694B (en) | 2012-06-13 |
Family
ID=40411725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101208389A Expired - Fee Related CN101367694B (en) | 2008-09-18 | 2008-09-18 | Horizontal moving bed reactor for preparing propylene with oxygen-containing compound as raw material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101367694B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101830769B (en) * | 2010-05-12 | 2012-11-14 | 浙江大学 | Method for converting methanol into propylene |
| CN101851144B (en) * | 2010-05-18 | 2013-05-08 | 浙江大学 | Tube-type moving-bed reactor used for producing propylene by taking oxygen compounds as raw materials |
| CN101869819B (en) * | 2010-06-18 | 2014-12-03 | 王伟跃 | Reactor for preparing propylene from oxygen-containing compound |
| CN103301785B (en) * | 2012-03-16 | 2016-01-20 | 中国石油化工股份有限公司 | A kind of gas phase catalytic reaction method and moving-burden bed reactor and application thereof |
| CN104672040B (en) * | 2013-12-03 | 2017-06-16 | 中国科学院大连化学物理研究所 | A kind of method of preparing low-carbon olefin from oxygen-containing compounds and its equipment for using |
| EP3078652B1 (en) | 2013-12-03 | 2018-07-18 | Dalian Institute Of Chemical Physics, Chinese Academy of Sciences | Method for preparing a light olefin using an oxygen-containing compound |
| CN105130730A (en) * | 2015-09-02 | 2015-12-09 | 中国昆仑工程公司 | Technological method for preparing light hydrocarbons through methanol by means of continuous regeneration moving beds and production system |
| CN113680307A (en) * | 2021-09-09 | 2021-11-23 | 金川集团股份有限公司 | Horizontal rotary reaction device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0154492A2 (en) * | 1984-02-27 | 1985-09-11 | Uop Inc. | Multiple-stage reactor system for a moving catalyst bed |
| DD266279A1 (en) * | 1987-11-30 | 1989-03-29 | Leipzig Chemieanlagen | CONTACT TAG WITH WOOD FLOOR |
| CN1067185A (en) * | 1991-05-29 | 1992-12-23 | 希尔斯股份公司 | The reactor that is used for heterogeneous reaction |
| CN1657149A (en) * | 2004-02-16 | 2005-08-24 | 高煦 | Horizontal quenching liquid cooling fluidized bed reactor |
-
2008
- 2008-09-18 CN CN2008101208389A patent/CN101367694B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0154492A2 (en) * | 1984-02-27 | 1985-09-11 | Uop Inc. | Multiple-stage reactor system for a moving catalyst bed |
| DD266279A1 (en) * | 1987-11-30 | 1989-03-29 | Leipzig Chemieanlagen | CONTACT TAG WITH WOOD FLOOR |
| CN1067185A (en) * | 1991-05-29 | 1992-12-23 | 希尔斯股份公司 | The reactor that is used for heterogeneous reaction |
| CN1657149A (en) * | 2004-02-16 | 2005-08-24 | 高煦 | Horizontal quenching liquid cooling fluidized bed reactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101367694A (en) | 2009-02-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101367694B (en) | Horizontal moving bed reactor for preparing propylene with oxygen-containing compound as raw material | |
| CN101367700B (en) | Radially moving bed reactor for preparing propylene with oxygen-containing compound as raw material | |
| US20100129283A1 (en) | Chemical Reactor | |
| CN203990548U (en) | radial parallel catalytic reactor | |
| CN102850183A (en) | Methanol synthesis system and method | |
| CN105536654A (en) | Large-scale axial multistage-mixing heat exchange type oxydehydrogenation reactor for butylene | |
| CN110078580B (en) | Fluidized bed reaction device and method for preparing ethylene through oxidative coupling of methane | |
| CN200955019Y (en) | Synthesized multi-sectional radial cold-exciting type reactor | |
| CN111013497B (en) | Tube array reactor | |
| CN103585933A (en) | Corrugated board type uniform-temperature hydrogenation reactor | |
| CN101376618B (en) | Horizontal type fixed bed reactor for producing propene with oxygen-containing compound as raw material | |
| CN205886831U (en) | Gather methoxy dimethyl ether synthesis fixed bed reactor | |
| CN116020350A (en) | Reactor for synthesizing carbonic ester, system and method for synthesizing carbonic ester | |
| CN209866000U (en) | Axial-radial HPPO fixed bed reactor | |
| CN205235936U (en) | Modular fixed bed reactor reaches device by its formation | |
| CN109833832B (en) | Axial and radial HPPO fixed bed reactor | |
| CN203648501U (en) | Corrugated plate type uniform-temperature hydrogenation reactor | |
| CN201684584U (en) | Vinyl acetate reactor | |
| CN102029130B (en) | Device and method for preparing dimethyl ether | |
| CN205886832U (en) | It is listed as reactor to gather methoxy dimethyl ether synthesis | |
| CN202983653U (en) | Fluidized bed reactor for preparing butadiene by oxidizing and dehydrogenizing butene | |
| CN201841008U (en) | Dimethyl ether preparing device | |
| CN107224939B (en) | Axial reactor | |
| CN100413829C (en) | Method for producing dimethylbenzene and benzene through dismutation of toluene and transference of alkyl | |
| CN103111240A (en) | Multi-section-type tabular reactor and method for preparing compound by using reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20160918 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |