CN202509007U - Methacrylic acid heavy component recovery device - Google Patents
Methacrylic acid heavy component recovery device Download PDFInfo
- Publication number
- CN202509007U CN202509007U CN2012200163715U CN201220016371U CN202509007U CN 202509007 U CN202509007 U CN 202509007U CN 2012200163715 U CN2012200163715 U CN 2012200163715U CN 201220016371 U CN201220016371 U CN 201220016371U CN 202509007 U CN202509007 U CN 202509007U
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- heavy constituent
- acid heavy
- gas
- methylacrylic acid
- retrieving arrangement
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Abstract
The utility model relates to a methacrylic acid heavy component recovery device. The methacrylic acid heavy component recovery device comprises a cracking reaction kettle which is provided with a stirrer and a hot oil circulating heater, a condenser which is provided with a filling tower and is used for condensing through circulation of cooling water and a gas-liquid separation tank which performs gas-liquid separation on materials, wherein the cracking reaction kettle, the condenser and the gas-liquid separation tank are connected in sequence through pipelines. The methacrylic acid heavy component recovery device, disclosed by the utility model, can perform cracking reaction, catalytic reaction, condensation and gas-liquid separation and the like on the heavy component waste liquid produced in rectification production for preparing MAA (Methacrylic Acid) in an ACH (Acetone Cyanohydrin) way, so that waste slag is removed, MAA is recycled and centralized incineration treatment is carried out on the formed waste gas. Therefore, the methacrylic acid heavy component recovery device, disclosed by the utility model, has the advantages of increasing yield of the MAA, reducing discharge and protecting environment.
Description
Technical field
The utility model relates to industrial retrieving arrangement, particularly, relates to the MAA heavy constituent retrieving arrangement that uses in acetone cyanohydrin (ACH) legal system methylacrylic acid (MAA) the rectifying production.
Background technology
The ACH hydrolysis method is produced among the thick MAA; The result that gas chromatography is analyzed shows; Thick MAA generally has the MAA of 95wt% at the most; The content of impurity is more than or equal to about 5wt%, and impurity generally comprises: water, acetone, vinylformic acid, USAF RH-1,2-hydroxy-iso-butyric acid (HIBA), mesityl oxide, pyruvic acid, 3-methacryloxy-2 Methylpropionic acid (" MOMPA "; Also be called the methacrylic acid dimer) etc.; Other is aided with about 75ppm stopper (PTZ), and after this streams got into the distillation system that two packing towers constitute, 93.45wt%, discharging waste liquid (below be also referred to as heavy constituent) that final output finished product is about incoming flow were about 3.85wt%, the about 0.03wt% of noncondensable gas, light constituent >=2.67wt%.In existing distillation system, thick MAA yield is low, and raw material consumption occupies high and causes expensive in the manufacturing, has restricted the ACH legal system and has got the large-scale development that MAA produces.
Therefore, be necessary the heavy constituent waste liquid of the about 3.85wt% of accounting is handled again.
The utility model content
The technical problem that the utility model solves provides the retrieving arrangement that a kind of heavy constituent waste liquid that produces in realizing acetone cyanohydrin (ACH) legal system methylacrylic acid (MAA) rectifying produced is handled again.
For solving the problems of the technologies described above; The utility model provides a kind of methylacrylic acid heavy constituent retrieving arrangement; This methylacrylic acid heavy constituent retrieving arrangement comprises: the scission reaction still; Comprise vertical setting interlude cylindraceous, be connected to upper baffle and lower rim silently following that is connected to this interlude of the upper limb of this interlude; The material outlet that comprises the material inlet that receives material, the drug delivery port that chemical agent is provided and vent gas phase materials on the said upper baffle; Comprise the slag-drip opening of discharging liquid phase and solid-phase material on said down silently the bottom, said interlude and said silently outer wall down are provided with the hot oiling well heater to said fission reaction still heating, are provided with the whisking appliance of stirring material in the said scission reaction still; Packing tower is the cylinder tank shape, is filled with filler in its cavity; The inlet mouth of its lower end is connected to the said material outlet of said scission reaction still and receives the gaseous phase materials from its discharge; Pass through from bottom to top to discharge from its air outlet behind the said filler, and introduce phegma, spray equably on the said filler from the upper end of said packing tower; Under action of gravity, flow downward along said filler space; In gaseous phase materials contacting in filler space, heat and mass turns back in the said scission reaction still to hold back high boiling heavy constituent; Condensing surface carries out condensation through cooling water circulation, and it receives the said gaseous phase materials of discharging from said packing tower, and exports after making its condensation; And knockout drum, it receives from the material of said condensing surface output, and through ageing gas-liquid separation, discharges gas from its venting port, and reclaims the material of liquid phase from the port that is arranged on its lower end.
In a technical scheme of the utility model; Said methylacrylic acid heavy constituent retrieving arrangement also can comprise the vacuum pump that is connected to said knockout drum, and said vacuum pump produces negative pressure with the gas sucking-off of separating in the said knockout drum in said knockout drum.
In a technical scheme of the utility model, the pressure in the said knockout drum can be-and 0.05Mpa is to-0.02Mpa.
In a technical scheme of the utility model, said vacuum pump expellant gas is introduced incinerator through pipeline and is burned.
In a technical scheme of the utility model, said scission reaction still during scission reaction through said hot oiling heater heats to 159 degree centigrade to 162 degrees centigrade, and keep this temperature to reaction to finish.
In a technical scheme of the utility model, said scission reaction still is stirred to reaction through said whisking appliance during scission reaction finishes.
In a technical scheme of the utility model, said filler can be Intelux filling.
In a technical scheme of the utility model, the volume of said scission reaction still can be 3/2 of primary treatment methylacrylic acid heavy constituent waste liquid amount and extraordinarily subtracts 10%.
In a technical scheme of the utility model, said condensing surface will condense to 26 degrees centigrade to 30 degrees centigrade through water of condensation through steam material therebetween.
In a technical scheme of the utility model, all flow passage components adopt the manufacturing of 316L stainless steel.
The methylacrylic acid heavy constituent retrieving arrangement of the utility model; Because carrying out scission reaction, catalyzed reaction, condensation and gas-liquid separation etc., handles again the heavy constituent waste liquid that produces in can producing acetone cyanohydrin (ACH) legal system methylacrylic acid (MAA) rectifying; So; Got rid of waste residue, reclaimed methylacrylic acid, and the waste gas that forms has been concentrated incineration process.Therefore, improve the productive rate of methylacrylic acid, reduced discharging, protected environment.
Description of drawings
Fig. 1 is the synoptic diagram of the methylacrylic acid heavy constituent retrieving arrangement of the utility model;
Fig. 2 is the synoptic diagram of the packing tower principle of work of the utility model; And
Fig. 3 is the synoptic diagram of the filler of the utility model.
Embodiment:
Below, illustrate and describe the embodiment of the methylacrylic acid heavy constituent retrieving arrangement of the utility model.
Fig. 1 is the synoptic diagram of the methylacrylic acid heavy constituent retrieving arrangement of the utility model, and Fig. 2 is the synoptic diagram of the packing tower principle of work of the utility model, and Fig. 3 is the synoptic diagram of the filler of the utility model.
As shown in Figure 1, the methylacrylic acid heavy constituent retrieving arrangement of the utility model comprises scission reaction still R5205, packing tower T5205, condensing surface E5205 and the knockout drum V5205 that is linked in sequence through pipeline.
Scission reaction still R5205 comprise vertical setting interlude cylindraceous, be connected to upper baffle and lower rim silently following that is connected to this interlude of the upper limb of this interlude.Comprise the material inlet 11 that receives material on the upper baffle, provide such as the drug delivery port 12 of the chemical agent of catalyzer and the material outlet 13 of vent gas phase materials.Comprise the slag-drip opening 14 of discharging liquid phase and solid-phase material on the following bottom silently.Interlude is provided with the hot oiling well heater 15 to the heating of fission reaction still with following outer wall silently, and is provided with the whisking appliance 16 that stirs material in the scission reaction still.Scission reaction still R5205 can adopt the reaction kettle of enamel material, also can adopt the stainless reaction kettle of 316L.
Packing tower T5205 is the cylinder tank shape; Be filled with dumped packing in its cavity; For example; Stainless steel Ying Teluokesi (Intalox) filler that specification is
, as shown in Figure 3.The inlet mouth 21 of its lower end is connected to the material outlet 13 of scission reaction still R5205 and receives the gaseous phase materials from its discharge, from bottom to top through discharging from its air outlet 22 behind the filler.Referring to Fig. 2, introduce phegma from the upper end of packing tower, spray equably and fill out on 23; Under action of gravity, flow downward along filler space; In gaseous phase materials contacting in filler space, heat and mass turns back in the scission reaction still to hold back high boiling heavy constituent.The high boiling heavy constituent of holding back turn back in the scission reaction still R5205 and discharge jointly with waste residue.Light constituent and MAA material then rise to cat head with vapour phase and export.
Condensing surface E5205 carries out condensation through cooling water circulation, and it receives the gaseous phase materials of discharging from packing tower, and exports after making its condensation.
Knockout drum V5205 can have similar cylinder tank shape with aforesaid scission reaction still R5205; It receives from the material of condensing surface output; And, discharge gas from its venting port 31, and reclaim the material of liquid phase from the port 32 that is arranged on its lower end through ageing gas-liquid separation.
In an embodiment of the utility model, methylacrylic acid heavy constituent retrieving arrangement also can comprise the vacuum pump P5201 that is connected to knockout drum.Vacuum pump P5201 produces negative pressure with the gas sucking-off of separating among the knockout drum V5205 in knockout drum.Pressure among the knockout drum V5205 can be-and 0.05Mpa is to-0.02Mpa.Vacuum pump P5201 expellant gas can be introduced the incinerator (not shown) through pipeline and burn.
In an embodiment of the utility model, the scission reaction still is heated to 159 degrees centigrade to 162 degrees centigrade through hot oiling well heater 15 during scission reaction, and preferred 161 degrees centigrade, and keep this temperature to reaction to finish.Simultaneously, the scission reaction still is stirred to the reaction end through whisking appliance during scission reaction.About 18 to 20 hours of scission reaction time in the cracking reactor.
The mechanism of scission reaction is:
The retrieving arrangement of the utility model can be according to the output requirement, and intermittently starting is produced.
In an embodiment of the utility model, the volume of scission reaction still may be selected to be 3/2 of primary treatment methylacrylic acid heavy constituent waste liquid amount and extraordinarily subtracts 10%, suitably selects according to treatment capacity.
In an embodiment of the utility model, for example, the temperature of water of condensation is 24-25 degree centigrade, and condensing surface will condense to 26 degrees centigrade to 30 degrees centigrade through the water of condensation condensation from about 142 degrees centigrade through steam material therebetween.
In an embodiment of the utility model, all flow passage components directly adopt the manufacturing of 316L stainless steel, perhaps can adopt peripheral hardware enamel coating after the carbon steel manufacturing.
The methylacrylic acid heavy constituent retrieving arrangement of the utility model; Because carrying out scission reaction, catalyzed reaction, condensation and gas-liquid separation etc., handles again the heavy constituent waste liquid that produces in can producing acetone cyanohydrin (ACH) legal system methylacrylic acid (MAA) rectifying; So; Got rid of waste residue, reclaimed methylacrylic acid, and the waste gas that forms has been concentrated incineration process.Therefore, improve the productive rate of methylacrylic acid, reduced discharging, protected environment.
Those skilled in the art should be understood that, according to design demand and other factors, can carry out various modifications, combination, part combination and replacement.Such modification, combination, part combine and replacement falls within the scope of accompanying claims or its equivalent.
Claims (7)
1. a methylacrylic acid heavy constituent retrieving arrangement is characterized in that, comprising:
The scission reaction still; Comprise vertical setting interlude cylindraceous, be connected to upper baffle and lower rim silently following that is connected to this interlude of the upper limb of this interlude; The material outlet that comprises the material inlet that receives material, the drug delivery port that chemical agent is provided and vent gas phase materials on the said upper baffle; Comprise the slag-drip opening of discharging liquid phase and solid-phase material on the said following bottom silently; Said interlude and said following outer wall silently are provided with the hot oiling well heater to said fission reaction still heating, are provided with the whisking appliance that stirs material in the said scission reaction still;
Packing tower is the cylinder tank shape, is filled with filler in its cavity; The inlet mouth of its lower end is connected to the said material outlet of said scission reaction still and receives the gaseous phase materials from its discharge; Pass through from bottom to top to discharge from its air outlet behind the said filler, and introduce phegma, spray equably on the said filler from the upper end of said packing tower; Under action of gravity, flow downward along said filler space; In gaseous phase materials contacting in filler space, heat and mass turns back in the said scission reaction still to hold back high boiling heavy constituent;
Condensing surface carries out condensation through cooling water circulation, and it receives the said gaseous phase materials of discharging from said packing tower, and exports after making its condensation; And
Knockout drum, it receives from the material of said condensing surface output, and through ageing gas-liquid separation, discharges gas from its venting port, and reclaims the material of liquid phase from the port that is arranged on its lower end.
2. methylacrylic acid heavy constituent retrieving arrangement as claimed in claim 1; It is characterized in that; Also comprise the vacuum pump that is connected to said knockout drum, said vacuum pump produces negative pressure with the gas sucking-off of separating in the said knockout drum in said knockout drum.
3. methylacrylic acid heavy constituent retrieving arrangement as claimed in claim 2 is characterized in that, and the pressure in the said knockout drum is-and 0.05Mpa is to-0.02Mpa.
4. methylacrylic acid heavy constituent retrieving arrangement as claimed in claim 2 is characterized in that, said vacuum pump expellant gas is introduced incinerator through pipeline and burned.
5. like any one described methylacrylic acid heavy constituent retrieving arrangement of claim 1 to 4, it is characterized in that said filler is an Intelux filling.
6. like any one described methylacrylic acid heavy constituent retrieving arrangement of claim 1 to 4, it is characterized in that the volume of said scission reaction still is that 3/2 of primary treatment methylacrylic acid heavy constituent waste liquid amount extraordinarily subtracts 10%.
7. like any one described methylacrylic acid heavy constituent retrieving arrangement of claim 1 to 4, it is characterized in that all flow passage components adopt the manufacturing of 316L stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200163715U CN202509007U (en) | 2012-01-13 | 2012-01-13 | Methacrylic acid heavy component recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200163715U CN202509007U (en) | 2012-01-13 | 2012-01-13 | Methacrylic acid heavy component recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202509007U true CN202509007U (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200163715U Expired - Fee Related CN202509007U (en) | 2012-01-13 | 2012-01-13 | Methacrylic acid heavy component recovery device |
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| Country | Link |
|---|---|
| CN (1) | CN202509007U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993126A (en) * | 2012-12-27 | 2013-03-27 | 山东瑞博龙化工科技股份有限公司 | Cracking control device of acryloylmorpholine |
| CN114890890A (en) * | 2022-05-09 | 2022-08-12 | 中建安装集团有限公司 | Process for recovering methacrylic acid or/and ester residual liquid thereof by catalytic cracking coupled rectification |
-
2012
- 2012-01-13 CN CN2012200163715U patent/CN202509007U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102993126A (en) * | 2012-12-27 | 2013-03-27 | 山东瑞博龙化工科技股份有限公司 | Cracking control device of acryloylmorpholine |
| CN114890890A (en) * | 2022-05-09 | 2022-08-12 | 中建安装集团有限公司 | Process for recovering methacrylic acid or/and ester residual liquid thereof by catalytic cracking coupled rectification |
| CN114890890B (en) * | 2022-05-09 | 2024-02-06 | 中建安装集团有限公司 | Process for recovering methacrylic acid and/or ester raffinate thereof by catalytic cracking coupling rectification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20190113 |