CN209348631U - A kind of solid catalysis esterification production system - Google Patents
A kind of solid catalysis esterification production system Download PDFInfo
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- CN209348631U CN209348631U CN201821994242.7U CN201821994242U CN209348631U CN 209348631 U CN209348631 U CN 209348631U CN 201821994242 U CN201821994242 U CN 201821994242U CN 209348631 U CN209348631 U CN 209348631U
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- reaction kettle
- solid
- solid catalyst
- production system
- collector
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Abstract
The utility model provides a kind of solid catalysis esterification production system, including reaction kettle, reflux unit, condensation receiver and solid catalyst collector, the input end of the reflux unit is connect with the gaseous phase outlet of the reaction kettle, the outlet end of the reflux unit is connect with the condensation receiver, the reflux unit is additionally provided with a return line, one end of the return line is connected with the reflux unit, and the other end is connected with the reaction kettle；The solid catalyst collector is connect by a pipeline with the bottom of the reaction kettle, for collecting solid catalyst to be recycled.The production overall process that the system can be reacted in the same reaction kettle, filtered and be distilled, equipment is simple, structurally reasonable, the high conversion rate of reaction.
Description
Technical field
The utility model relates to a kind of solid catalysis to be esterified production system.
Background technique
Esterification generally carries out dehydration by aliphatic alcohols and fatty carboxylic acids and obtains aliphatic ester, the esterification process
Usually in the presence of a catalyst, liquid acid catalyst separates difficulty with reaction product after the completion of reaction, and has a large amount of spent acid to arrange
Waste water treatmentntrol difficult is caused out and is gradually eliminated.The reaction time can significantly be shortened using solid acid as catalyst, and yield
It is higher, it is the mainstream research direction of current catalyst for esterification reaction.
In the industrial production, solid catalysis esterification carries out usually in reaction kettle of the esterification, need after reaction by
Material in reaction kettle of the esterification is all released will carry out distillation procedure in the distillation still being passed through again again after catalyst filtration, whole
The operation of a technical process is relative complex, exists and is worked using a large amount of equipment and process maintenance, and the equipment used used time again
It has to by washing, equipment use is more, and waste water and the other wastes for washing generation are just more.
The Chinese patent literature of Publication No. CN108383722A discloses a kind of preparation of industrialization middle chain triglyceride
Method, this method using glycerol, octanoic acid and capric acid as raw material, heat and reduced pressure under Plus acidic solid catalyst, complete
After esterification, the lipid mixture containing solid catalyst is filtered using filter, recycles solid catalyst therein
After add to industrial molecular distilling apparatus middle chain triglyceride crude product refined and purified.Although the patent also solves
It is directly filtered in reactive end, but they still need to use other distillation equipments could complete whole preparation process.
The Chinese patent literature that notification number is CN204022712U discloses a kind of solid acid catalyst for propionic acid tricyclic
The process units of ubidecarenone, reaction kettle of the esterification bottoms material enters water washing pan water after accurate filter filters in the production technology
It washes, then just enters autoclave fractionating column and purified.The patent also only solves filtration problem in reactive end, it is desired nonetheless to volume
Outer washing equipment and distillation equipment.
In the existing production system using solid catalyst, only simply solving catalyst after the completion of reaction
Filtration problem is inevitably needed using additional washing and distillation equipment, and equipment investment is big, complex process.
Utility model content
The technical problems to be solved in the utility model be in order to overcome in the prior art esterification reaction process occupy equipment it is more,
The defect more than waste water and solvent slop more using equipment, washing redundant equipment generates is needed in complex process, production process, is provided
A kind of solid catalysis esterification production system, the system can be reacted in the same reaction kettle, filter (or washing) and distillation
Production overall process, reduce in production to the investment of equipment, simplify technological operation, structurally reasonable, therefore equipment is washed using few
The waste for washing equipment generation is also few, economic and environment-friendly.
The utility model is to solve above-mentioned technical problem by following technical proposals:
The utility model provides a kind of solid catalysis esterification production system, including reaction kettle, reflux unit, condensation reception
Device and solid catalyst collector,
The input end of the reflux unit is connect with the gaseous phase outlet of the reaction kettle, the outlet end of the reflux unit with
The condensation receiver connection, the reflux unit are additionally provided with a return line, one end of the return line and the reflux
Device is connected, and the other end is connected with the reaction kettle；
The solid catalyst collector is connect by a pipeline with the bottom of the reaction kettle, to be recycled for collecting
Solid catalyst；
The reaction kettle includes autoclave body, successively includes expanding reach cylinder, expanding reach cone, main reaction section cylinder in the autoclave body
Body and lower cone,
The internal diameter of the expanding reach cylinder is 1.2~1.5 times of the internal diameter of the main reaction section cylinder, the main reaction section
It is coated with heating jacket on the outside of cylinder, is provided with heating coil on the outside of the expanding reach cone；The main reaction section cylinder
Kettle wall be equipped with several material baffles obliquely；
The outside of the autoclave body is equipped with a circulation line, and the feed inlet of the circulation line and the expanding reach cylinder connect
Logical, the discharge port of the circulation line is connected to the lower cone, and the circulation line is successively arranged condenser along flow direction of material
And water segregator；
Rabbling mechanism is additionally provided in the autoclave body, the rabbling mechanism includes motor, the motor and stirring axis connection, institute
State the blender being provided on agitating shaft positioned at the main reaction section cylinder.
In the reaction kettle, preferably, the material baffle and horizontal angle are 10 °~45 °.
In the reaction kettle, preferably, the quantity of the material baffle is 2~6.
In the reaction kettle, preferably, the blender is screw blender.
Preferably, have solid catalyst in the reaction kettle in esterification reaction process, the solid catalyst collector
Volume is that solid catalyst feeds intake 4~6 times of volume in the reaction kettle.
Preferably, being equipped with filter layer in the solid catalyst collector, the filter layer receives the solid catalyst
Storage is divide into upper part and lower part, and the lower part of the solid catalyst collector is equipped with material liquid outlet, and the material liquid outlet passes through one
Feed liquid pipeline is connected to the expanding reach cylinder of the autoclave body of the reaction kettle, and a small amount of feed liquid being obtained by filtration through filter layer passes through the material
Liquid pipeline is back to reaction kettle；More preferably, the top of the solid catalyst collector is equipped with catalyst outlet, and the solid is urged
The lower part of agent collector is equipped with backflushing pipe, and the catalyst outlet passes through a catalyst recovery pipe and the reaction kettle
Bottom connection, solid catalyst, which is obtained by filtration, through filter layer to be back in reaction kettle by catalyst recovery pipe, realize solid
The recycling of body catalyst.
It for certain esterifications, is also washed after esterification, further, the reaction kettle is also
It is managed equipped with washing, the outside of the solid catalyst collector is also communicated with liquid level monitoring pipe, the solid catalyst collector
Bottom be equipped with drainpipe, the liquid level monitoring pipe be used for monitor in the solid catalyst collector liquid level separation situation,
The drainpipe is cooperated to carry out a point water.At this point, the solid catalyst collector can play the role of water segregator simultaneously.
The positive effect of the utility model is:
(1) after an esterification, rabbling mechanism is closed, the feed liquid in reaction kettle is only needed without all releasing
The solid catalyst for being deposited in bottom and a small amount of feed liquid are put into togerther in solid catalyst collector, remaining material in reaction kettle
Liquid can carry out distillation procedure, avoid needing to pump again after whole materials in reaction kettle are released filtering in conventional production operation
Enter and carry out distillation procedure in boiler, the utility model solid catalysis esterification production system realizes in same reaction kettle simultaneously
Esterification, the production overall process of filtering and distillation are carried out, equipment is few, simple process.
(2) reaction kettle is structurally reasonable in the utility model solid catalysis esterification production system, and material is uniformly mixed in kettle, instead
The high conversion rate answered.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that solid catalysis is esterified production system in the utility model embodiment 1.
Fig. 2 is the structural schematic diagram that solid catalysis is esterified production system in the utility model embodiment 2.
Fig. 3 is the structural schematic diagram that solid catalysis is esterified production system in the utility model embodiment 3.
Description of symbols:
1- reaction kettle, 2- reflux unit, 3- condense receiver, 4- solid catalyst collector；
101- expanding reach cylinder, 102- expanding reach cone, 103- main reaction section cylinder, 104- lower cone, 105- material gear
Plate, 106- condenser, 107- water segregator, 108- motor, 109- agitating shaft, 110- blender, 111- washing pipe；
201- return line；
401- filter layer, 402- material liquid outlet, 403- feed liquid pipeline, 404- catalyst outlet, 405- backflushing pipe, 406-
Catalyst recovery pipe, 407- level monitor, 408- drainpipe.
Specific embodiment
A preferred embodiment is named, and completely illustrates the utility model in conjunction with attached drawing to become apparent from.
Embodiment 1
As shown in Figure 1, present embodiments providing a kind of solid catalysis esterification production system, including reaction kettle 1, reflux unit
2, receiver 3 and solid catalyst collector 4 are condensed,
The input end of reflux unit 2 is connect with the gaseous phase outlet of reaction kettle 1, and the outlet end of reflux unit 2 and condensation receive
Device 3 connects, and reflux unit 2 is additionally provided with a return line 201, and one end of the return line 201 is connected with reflux unit 2, another
End is connected with reaction kettle 1.
Solid catalyst collector 4 is connect by a pipeline with the bottom of reaction kettle 1, and the solid for collecting to be recycled is urged
Agent.
Reaction kettle 1 includes autoclave body, successively includes expanding reach cylinder 101, expanding reach cone 102, main reaction section cylinder in autoclave body
Body 103 and lower cone 104.
The internal diameter of expanding reach cylinder 101 is 1.2 times of internal diameter of main conversion zone cylinder 103, main reaction section cylinder 103 it is outer
Side is coated with heating jacket, and the outside of expanding reach cone 102 is provided with heating coil.
The kettle wall of main reaction section cylinder 103 is equipped with several material baffles 105 obliquely, which has 4
It is a, it is evenly arranged on kettle wall, when actual fabrication, the quantity of the material baffle 105 can be selected between 2~6 as needed.
The material baffle 105 and horizontal angle are 30 °, and when angle actual fabrication can carry out between 10 °~45 ° as needed
Selection.
The outside of autoclave body is equipped with a circulation line, and the feed inlet of the circulation line is connected to expanding reach cylinder 101, the circulation
The discharge port of pipeline is connected to lower cone 104, which is successively arranged condenser 106 and water segregator 107 along flow direction of material；
Rabbling mechanism is additionally provided in autoclave body, which includes motor 108, and motor 108 is connect with agitating shaft 109, should
The blender 110 positioned at main reaction section cylinder 103 is provided on agitating shaft 109, which is screw blender.
When carrying out esterification using solid catalysis esterification production system, reaction raw materials and solid catalyst are placed in reaction
Esterification is carried out in kettle 1, the autoclave body of reaction kettle 1 is up big and down small, and the material of autoclave body main reaction section cylinder 103 passes through heating jacket
Heating carries out esterification and flows from bottom to top, and main reaction section cylinder 103 and expanding reach cone 102 can distinguish temperature control, generally
For, the temperature of expanding reach cone 102 is high compared with main reaction section cylinder 103, and material arrives after thus heated coil pipe further heats
Up to expanding reach cylinder 101, the precipitation rate of the low-boiling by-products such as water is improved under conditions of larger disengagement area, through circulation pipe
It is back to lower cone 104 after road separation water, effectively facilitates the flowing of solid catalyst in reaction kettle 1, material is sufficiently mixed in kettle,
The high conversion rate of esterification.
In esterification reaction process, there is solid catalyst in reaction kettle 1, the volume of solid catalyst collector 4 is reaction kettle 1
Interior solid catalyst feeds intake 5 times of volume.After an esterification, rabbling mechanism is closed, the solid in reaction kettle is urged
Agent is deposited in the lower cone 104 of autoclave body, at this time without releasing whole feed liquids in reaction kettle, need to will only be deposited in bottom
Solid catalyst and a small amount of feed liquid be put into togerther in solid catalyst collector 4, remaining feed liquid can carry out in reaction kettle
Distillation procedure, the steam that kettle top is drawn from reaction kettle in distillation process are condensed through reflux unit 2, and a part of lime set is as reflux
Liquid returns to reaction kettle from return line 201, remaining efflux enters in condensation receiver 3 as product, realizes same anti-
Esterification, filtering and the production of distillation overall process are answered in kettle while carrying out, equipment is few, simple process.
Embodiment 2
As shown in Fig. 2, solid catalysis esterification production system provided in this embodiment is compared with Example 1, difference is, Gu
Filter layer 401 is equipped in body catalyst collector 4, which is divide into upper part and lower part solid catalyst collector 4,
The lower part of solid catalyst collector 4 is equipped with material liquid outlet 402, which passes through a feed liquid pipeline 403 and reaction kettle
Autoclave body expanding reach cylinder 101 be connected to.
After an esterification, understands some feed liquid and solid catalyst and be placed into solid catalyst receipts together
Storage 4 cuts off the connection of solid catalyst collector 4 and reaction kettle 1, makes solid after solid catalyst collector 4 is filled
Feed liquid in catalyst collection device 4 is filtered through the feed liquid pipeline 403 through filter layer 401 and is back in reaction kettle 1.Then connection
Solid catalyst collector 4 and reaction kettle 1, and opening the rabbling mechanism in reaction kettle 1 is slow stirring mode, is made in reaction kettle 1
Remaining solid catalyst enters in solid catalyst collector 4, and the feed liquid of carrying passes through the feed liquid after the filtering of filter layer 401
Pipeline 403 is back in reaction kettle 1.Up to the solid catalyst of noresidue in reaction kettle 1, solid catalyst collector 4 is cut off
With the connection of reaction kettle 1, the feed liquid in reaction kettle carries out distillation procedure.
The top of the solid catalyst collector 4 is additionally provided with catalyst outlet 404, the lower part of solid catalyst collector 4
Equipped with backflushing pipe 405, catalyst outlet 404 is connected to by a catalyst recovery pipe 406 with the bottom of reaction kettle 1.Work as steaming
After the completion of evaporating operation, the remaining feed liquid in reaction kettle 1 is emptied, rejoins reaction raw materials, backflushing pipe 405 is opened, then passes through
Filter layer 401 obtains solid catalyst and is back in reaction kettle 1 by catalyst recovery pipe 406 after filtering, realize that solid is urged
The recycling of agent.
Embodiment 3
As shown in figure 3, solid catalysis esterification production system provided in this embodiment is compared with Example 2, difference is, instead
Kettle 1 is answered to be additionally provided with washing pipe 111, the outside of solid catalyst collector 4 is also communicated with liquid level monitoring pipe 407, solid catalyst
The bottom of collector 4 is equipped with drainpipe 408.
Utilize the density variation of water and feed liquid and the principle of layering, the liquid level monitoring pipe 407 and solid catalyst collector 4
Connection, carries out a point water by pressure difference.
After esterification, the feed liquid that solid catalyst collector 4 is placed into together with solid catalyst is passed through
Filtering layer 401 is back in reaction kettle after filtering through feed liquid pipeline 403.For certain esterifications, after esterification also
It is washed, opens washing pipe 111 at this time and washed, water and part feed liquid are placed into solid catalyst collector together
In 4, due to density variation, water level monitors solid catalysis in the lower part of solid catalyst collector 4, using liquid level monitoring pipe 407
Liquid level in agent collector 4 separates situation, and water is discharged by drainpipe 408, and the water in solid catalyst collector 4 is emptied
Afterwards, remaining feed liquid is back in reaction kettle 1 by feed liquid pipeline 403, and solid catalyst collector 4 plays the work of water segregator simultaneously
With the feed liquid in reaction kettle 1 carries out distillation procedure.Esterification, washing can be realized simultaneously using the same reaction kettle 1 as a result,
And the multi-mode operations such as distillation, while being also able to achieve the recycling of catalyst.
Claims (8)
1. a kind of solid catalysis is esterified production system, which is characterized in that including reaction kettle, reflux unit, condensation receiver and consolidate
Body catalyst collector,
The input end of the reflux unit is connect with the gaseous phase outlet of the reaction kettle, the outlet end of the reflux unit with it is described
Receiver connection is condensed, the reflux unit is additionally provided with a return line, one end of the return line and the reflux unit
It is connected, the other end is connected with the reaction kettle；
The solid catalyst collector is connect by a pipeline with the bottom of the reaction kettle, for collecting solid to be recycled
Catalyst；
The reaction kettle includes autoclave body, in the autoclave body successively include expanding reach cylinder, expanding reach cone, main reaction section cylinder and
Lower cone,
The internal diameter of the expanding reach cylinder is 1.2~1.5 times of the internal diameter of the main reaction section cylinder, the main reaction section cylinder
Outside be coated with heating jacket, be provided with heating coil on the outside of the expanding reach cone；The kettle of the main reaction section cylinder
Wall is equipped with several material baffles obliquely,
The outside of the autoclave body is equipped with a circulation line, and the feed inlet of the circulation line is connected to the expanding reach cylinder, institute
The discharge port for stating circulation line is connected to the lower cone, and the circulation line is successively arranged condenser and Fen Shui along flow direction of material
Device,
Rabbling mechanism is additionally provided in the autoclave body, the rabbling mechanism includes motor, the motor and stirring axis connection, described to stir
Mix the blender being provided on axis positioned at the main reaction section cylinder.
2. solid catalysis as described in claim 1 is esterified production system, which is characterized in that the material baffle with it is horizontal
Angle is 10 °~45 °.
3. solid catalysis as described in claim 1 is esterified production system, which is characterized in that the quantity of the material baffle is 2
~6.
4. solid catalysis as described in claim 1 is esterified production system, which is characterized in that the blender is screw stirring
Device.
5. solid catalysis as described in claim 1 is esterified production system, which is characterized in that described anti-in esterification reaction process
Answering has solid catalyst in kettle, the volume of the solid catalyst collector is that solid catalyst feeds intake volume in the reaction kettle
4~6 times.
6. solid catalysis as described in claim 1 is esterified production system, which is characterized in that in the solid catalyst collector
Equipped with filter layer, the solid catalyst collector is divide into upper part and lower part by the filter layer, and the solid catalyst is collected
The lower part of device is equipped with material liquid outlet, the expanding reach cylinder that the material liquid outlet passes through a feed liquid pipeline and the autoclave body of the reaction kettle
Connection.
7. solid catalysis as claimed in claim 6 is esterified production system, which is characterized in that the solid catalyst collector
Top is equipped with catalyst outlet, and the lower part of the solid catalyst collector is equipped with backflushing pipe, and the catalyst outlet passes through
One catalyst recovery pipe is connected to the bottom of the reaction kettle.
8. solid catalysis as claimed in claim 6 is esterified production system, which is characterized in that the reaction kettle is additionally provided with washing
Pipe, the outside of the solid catalyst collector are also communicated with liquid level monitoring pipe, and the bottom of the solid catalyst collector is set
There is drainpipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821994242.7U CN209348631U (en) | 2018-11-29 | 2018-11-29 | A kind of solid catalysis esterification production system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821994242.7U CN209348631U (en) | 2018-11-29 | 2018-11-29 | A kind of solid catalysis esterification production system |
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| CN209348631U true CN209348631U (en) | 2019-09-06 |
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|---|---|---|---|
| CN201821994242.7U Expired - Fee Related CN209348631U (en) | 2018-11-29 | 2018-11-29 | A kind of solid catalysis esterification production system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762831A (en) * | 2020-07-01 | 2020-10-13 | 江阴市江中设备制造有限公司 | Acid-base waste water evaporator |
-
2018
- 2018-11-29 CN CN201821994242.7U patent/CN209348631U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111762831A (en) * | 2020-07-01 | 2020-10-13 | 江阴市江中设备制造有限公司 | Acid-base waste water evaporator |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190906 Termination date: 20211129 |
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| CF01 | Termination of patent right due to non-payment of annual fee |