CN202063852U - Laminar flow type reaction device for producing N-methyl pyrrolidone - Google Patents
Laminar flow type reaction device for producing N-methyl pyrrolidone Download PDFInfo
- Publication number
- CN202063852U CN202063852U CN2011201663668U CN201120166366U CN202063852U CN 202063852 U CN202063852 U CN 202063852U CN 2011201663668 U CN2011201663668 U CN 2011201663668U CN 201120166366 U CN201120166366 U CN 201120166366U CN 202063852 U CN202063852 U CN 202063852U
- Authority
- CN
- China
- Prior art keywords
- laminar flow
- flow type
- flow formula
- methyl
- heat exchanger
- 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 - Lifetime
Links
Images
Landscapes
- Pyrrole Compounds (AREA)
Abstract
The utility model relates to chemical engineering equipment, in particular to reaction device for producing N-methyl pyrrolidone. A laminar flow type reaction device for producing N-methyl pyrrolidone adopts the technical scheme that a discharge port of a heat exchanger is connected with an inlet of a laminar flow type reactor. Through the adoption of the technical scheme, the smooth radial velocity distribution of raw materials is achieved, and axial diffusion is avoided; and a single laminar flow type reactor keeps constant temperature and laminar flow, heating is not required in the laminar flow type reactor, and all that is needed is to maintain the heat balance, so that the original technical idea that the pipe diameter is needed to be increased or a pipe is needed to be lengthened for increasing the yield is broken through.
Description
Technical field
The utility model relates to a kind of chemical industry equipment, relates in particular to a kind of production N-methyl-2-pyrrolidone reaction unit.
Background technology
Traditional reactor is a double tube reactor, this reactor is that heat carrier pipeline chuck material pipe forms, thermal barrier circulates in chuck, this reactor is because of heat supply in the whole process of circulation of material, and the material caliber is generally less, if increase output then need increase caliber or the lengthening pipe, caliber is excessive certainly will to cause heating uneven if increase, have thermograde, reaction can not be carried out fully, transformation efficiency is lower; Increase falls in lengthening pipe then systemic resistance, and reactor volume increases.Therefore, production capacity is restricted, and easily causes wall stream material carbonization coking in the material stream passed reaction process.
Once used still formula amination reaction device abroad, this reactor is that the material pipe volution is coiled in the still, still has thermograde and coking phenomenon, and volume is also bigger, and such reactor production capacity is still restricted.
Summary of the invention
The utility model adopts tower structure, can hang on the steel construction by a plurality of placed in-line reactors, not limited by production capacity, but prolong operating period improves device running level.
The technical scheme that the utility model provides is:
A kind of laminar flow formula is produced the reaction unit of N-methyl-2-pyrrolidone, and the discharge port of heat exchanger is connected with the inlet of laminar flow formula reactor.
Preferably, the feeding mouth of heat exchanger is connected with the outlet of mixing tank.
Preferably, be connected by mixing tank between the inlet of the discharge port of heat exchanger and laminar flow formula reactor.
Preferably, laminar flow formula reactor is outside equipped with thermofin.
Preferably, heat exchanger is outside equipped with thermofin.
Preferably, mixing tank is outside equipped with thermofin.
Preferably, a plurality of laminar flow formula reactors are connected in series.
It is smooth that the technical scheme that adopts the utility model to provide can realize that the raw material radial velocity distributes, there is not longitudinal diffusion, single laminar flow formula reactor isothermal laminar flow, in laminar flow formula reactor, need not heating, only need keep heat balance, break through the technical thought that original increase output need increase caliber or lengthening pipe.
Be difficult for coking in the laminar flow formula reactor, the thermal oil consumption is less, and laminar flow is stable, and logistics is more evenly distributed, and has good mass-and heat-transfer effect, and reactor pressure decrease is low, and prolong operating period improves device running level.
Because the amination building-up reactions of N-methyl-2-pyrrolidone is thermopositive reaction, this response characteristic provides necessary condition for using laminar flow formula reactor, only needs one-time heating just can satisfy the processing requirement of subsequent reactions to temperature of reaction in reaction process.
The condition of amination building-up reactions is exactly pressure, temperature, the residence time.After mixing of materials was even, the pressure of amination building-up reactions mainly provided by the charging volume pump.Temperature is thermopositive reaction because of the amination building-up reactions, and general lagging material can satisfy processing requirement.Can satisfy fully after once being added to temperature of reaction in the reaction process.The residence time is followed the principle of first outer, calculates the volume of reactor the needed residence time by production capacity and reaction, just can guarantee the residence time.Mixing of materials is even, and after pressure, temperature, the residence time guaranteed, transformation efficiency can not be affected, and experiment has also proved this point.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of laminar flow formula reactor.
The direction of arrow is the Flow of Goods and Materials direction among the heat exchanger 2 laminar flow formula reactors 3 mixing tank figure.
Embodiment
As shown in the figure, a kind of laminar flow formula is produced the reaction unit of N-methyl-2-pyrrolidone, is connected with the feeding mouth of heat exchanger by the outlet of mixing tank, and the discharge port of heat exchanger also is connected by a mixing tank with the feeding mouth of laminar flow formula reactor.There are three laminar flow formula reactors connected in series.
Laminar flow formula reactor is outside equipped with thermofin.Heat exchanger is outside equipped with thermofin.Mixing tank is outside equipped with thermofin.
The raw material of the amination building-up reactions of N-methyl-2-pyrrolidone is squeezed in the mixing tank by the charging volume pump, entered heat exchanger then.After heat exchanger heats, mix once more.Enter laminar flow formula reactor then and carry out the amination building-up reactions.
Should be noted that at last: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present invention; And not breaking away from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Claims (7)
1. the reaction unit of a laminar flow formula production N-methyl-2-pyrrolidone is characterized in that the discharge port of heat exchanger is connected with the inlet of laminar flow formula reactor.
2. produce the reaction unit of N-methyl-2-pyrrolidone according to the described a kind of laminar flow formula of claim 1, it is characterized in that the feeding mouth of heat exchanger is connected with the outlet of mixing tank.
3. produce the reaction unit of N-methyl-2-pyrrolidone according to the described a kind of laminar flow formula of claim 1, it is characterized in that, be connected by mixing tank between the inlet of the discharge port of heat exchanger and laminar flow formula reactor.
4. according to the reaction unit of claim 1 or 3 described a kind of laminar flow formulas production N-methyl-2-pyrrolidones, it is characterized in that laminar flow formula reactor is outside equipped with thermofin.
5. according to the reaction unit of claim 1 or 2 described a kind of laminar flow formulas production N-methyl-2-pyrrolidones, it is characterized in that heat exchanger is outside equipped with thermofin.
6. produce the reaction unit of N-methyl-2-pyrrolidone according to the described a kind of laminar flow formula of claim 2, it is characterized in that mixing tank is outside equipped with thermofin.
7. produce the reaction unit of N-methyl-2-pyrrolidone according to the described a kind of laminar flow formula of claim 1, it is characterized in that a plurality of laminar flow formula reactors are connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201663668U CN202063852U (en) | 2011-05-24 | 2011-05-24 | Laminar flow type reaction device for producing N-methyl pyrrolidone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201663668U CN202063852U (en) | 2011-05-24 | 2011-05-24 | Laminar flow type reaction device for producing N-methyl pyrrolidone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202063852U true CN202063852U (en) | 2011-12-07 |
Family
ID=45057721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201663668U Expired - Lifetime CN202063852U (en) | 2011-05-24 | 2011-05-24 | Laminar flow type reaction device for producing N-methyl pyrrolidone |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202063852U (en) |
-
2011
- 2011-05-24 CN CN2011201663668U patent/CN202063852U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205980827U (en) | Ring kiln tail gas waste heat recovery apparatus | |
| WO2009116977A3 (en) | Tube reactor | |
| CN211636454U (en) | Chemical reaction apparatus | |
| CN114405413B (en) | Reaction device for producing maleic anhydride by n-butane method | |
| CN202063852U (en) | Laminar flow type reaction device for producing N-methyl pyrrolidone | |
| CN202322675U (en) | 2-acrylamide-2-methylacrylsulfonate continuous synthesis reaction device | |
| CN105062871B (en) | A kind of heating system for dry-type anaerobic fermentation | |
| CN103910604B (en) | The treatment process of methyl alcohol synthetic reactor outlet high-temperature gas and system for methanol synthesis | |
| CN206989768U (en) | Dehydrogenating propane device reaction device input and output material high-performance heat exchanger | |
| CN102249973A (en) | Reaction apparatus and reaction method for strataflo production of N-methyl-2-pyrrolidone | |
| CN212142558U (en) | Continuous production system | |
| CN109912006B (en) | Tube cluster type supercritical water oxidation reactor | |
| CN104174349B (en) | Steam inside-heat-transfer type composite reaction kettle for AC foaming agent | |
| CN203787511U (en) | Novel hydrogen-oxygen pile system | |
| CN203489228U (en) | Forced water circulation furnace-process phosphoric acid waste heat recovery device | |
| CN202336220U (en) | Even-heating reboiler | |
| CN202580607U (en) | Liquid chlorine gasification device | |
| CN104192864A (en) | Preparation device and preparation method of high-purity ammonium bifluoride | |
| CN105004201A (en) | Urea solution hydrolysis ammonia producing reactor outlet heat exchanger | |
| CN204365269U (en) | The integrated reactor of coaxial double stage tandem | |
| CN204594287U (en) | A kind of tube-in-tube heat exchanger | |
| CN203090937U (en) | Spraying pyrolyzer | |
| CN202480393U (en) | High-temperature extruding machine | |
| CN214075126U (en) | Vinylidene chloride rectification feeding temperature stabilizing device | |
| CN215464455U (en) | Annular continuous nitration reaction device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MAIQI CHEMICAL CO., LTD. Free format text: FORMER NAME: PUYANG MYJ TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 457000 Shengli Road, Henan, Puyang Patentee after: Maiqi Chemical Co., Ltd. Address before: 457000 Shengli Road, Henan, Puyang Patentee before: Puyang Maiqi Technology Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Reaction apparatus and reaction method for strataflo production of N-methyl-2-pyrrolidone Effective date of registration: 20141121 Granted publication date: 20111207 Pledgee: Bank of China, Limited by Share Ltd, Puyang branch Pledgor: Maiqi Chemical Co., Ltd. Registration number: 2014990000976 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190813 Granted publication date: 20111207 Pledgee: Bank of China, Limited by Share Ltd, Puyang branch Pledgor: Maiqi Chemical Co., Ltd. Registration number: 2014990000976 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |