CN202283465U - C10-24 fatty acid methyl esterification device - Google Patents
C10-24 fatty acid methyl esterification device Download PDFInfo
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- CN202283465U CN202283465U CN2011203343486U CN201120334348U CN202283465U CN 202283465 U CN202283465 U CN 202283465U CN 2011203343486 U CN2011203343486 U CN 2011203343486U CN 201120334348 U CN201120334348 U CN 201120334348U CN 202283465 U CN202283465 U CN 202283465U
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- shell
- interlayer
- fatty acid
- inner bag
- deflection plate
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Abstract
The utility model discloses a C10-24 fatty acid methyl esterification device, which is a double-layer fixed bed type reactor in staged heating and staged reaction, and comprises a shell, a liner, a baffle plate and the like. The shell is connected with the liner through a flange; an interlayer is formed between the shell and the liner; a discharging hole is formed at the bottom of the interlayer; the upper part of the interlayer is provided with the baffle plate; the top of the shell is provided with a gas phase outlet; and the lowest end of the liner is provided with a feeding hole, and a primary heating section, a primary reaction chamber, a secondary heating section and a secondary reaction chamber are sequentially formed upwards and are connected with each other through flanges. The esterification device has outstanding characteristics that: the reaction liquid has low static pressure, and the produced water easily overflows to contribute to an esterification reaction; and the reaction liquid flows downwards in a film shape along an outer wall of the liner under the action of the baffle plate, the outer wall of the liner is similar to a high-efficiency film evaporator, a high-purity product can be obtained through the discharging hole, the equipment is simplified, and the energy is saved.
Description
(1) technical field under:
The utility model relates to a kind of reaction unit, especially a kind of C
10-24The device of methyl esterification of fatty acid.
(2) background technology
Esterification is one type of important organic synthesis, and industry plays a part very important in modern times.The carboxylate that esterification is synthetic is the raw material of industry such as spices, daily use chemicals, fuel, coating, leather, medicine.The higher fatty acids methyl esters was as the reproducible energy in recent years, and to replace the aromatic carboxylic acid ester plasticiser be the important topic that people study.Traditional fatty acid methyl ester synthetic method is with aliphatic acid and methyl alcohol, in the disposable according to a certain percentage input agitated reactor of concentrated sulfuric acid catalyst, under certain temperature and pressure, through reaction in 6～8 hours.The deficiency that this method exists: 1. the concentrated sulfuric acid is serious to equipment corrosion, and side reaction is many, the post processing trouble; 2. the reaction time long, energy consumption is high; 3. methyl alcohol occupies the dischargeable capacity of very big agitated reactor, and utilization rate of equipment and installations is low.For this reason, in the last few years, people had developed multiple solid acid catalyst and had been used for esterification; These catalyst are insoluble to reactant liquor, and reaction finishes the back and is prone to separate means Separation and Recovery catalyst and recycling through filter, centrifugal or deposition etc.; Economize on resources, reduce and pollute.The heterogeneous synthetic main form of reactor that adopts of fatty acid methyl ester has at present:
1, tank reactor.Utilize mechanical agitation to strengthen contacting of aliphatic acid and alcohol, and solid catalyst is suspended in the reactant liquor, utilize external centrifuge or filter Separation and Recovery catalyst.
2, tower reactor.Solid catalyst is wrapped in (or being placed on the column plate) within the filler, and reactant carries out esterification at catalyst surface.
3, fixed bed reactors.Solid catalyst is filled in forms porous fixed bed in the reaction tube, reactant contacts with catalyst when the space of fixed bed, discharge from the fixed bed outlet subsequently, and directly and catalyst separation.
In the esterification of catalysis of solid catalyst higher fatty acids, fixed bed reactors have certain advantage with respect to other two types, with respect to tank reactor: 1. do not have machinery and stir the equipment good seal performance.2. can be continuously produced, bear higher temperature and pressure.3. the solid catalyst wearing and tearing are little.Relative tower reactor: 1. volume is little.2. catalyst regeneration is convenient.Still there are some problems in the suitability for industrialized production that right conventional fixed bed reactors are applied in fatty acid methyl ester, shows: 1. calandria type fixed bed reactor, adopt the pipe apparatus with catalyst inside, and unit heat exchange area inner catalyst amount is little, and respond is little.2. equipment making complex process.3. reaction conversion ratio is low.4. reaction temperature is inhomogeneous.
(3) summary of the invention:
In order to overcome the deficiency of existing apparatus, the utility model provides a kind of C
10-24The device of methyl esterification of fatty acid, it is simple in structure, easy operating, sufficient reacting, energy consumption is low, conversion ratio is high, the catalyst packing factor is big.
The technical scheme that its technical problem that solves the utility model adopts is:
1. C
10-24The device of methyl esterification of fatty acid is a segmentation heating, segmentation reaction, double-deck fixed bed type reactor, mainly contains shell, inner bag, deflection plate formation; Shell is connected with flange with inner bag, forms interlayer, and discharging opening is arranged at the interlayer bottom; Deflection plate is arranged at interlayer top, and cover top portion has gaseous phase outlet, and charging aperture is arranged at the inner bag bottom; Distributor, successively up: one-level bringing-up section, first order reaction chamber, secondary bringing-up section, second order reaction chamber connect with flange; The I and II reative cell all is equipped with catalyst, and all there is inner flange inside, two, and the orifice plate that accompanies silk screen is fixed on the inner flange.
2. like above-mentioned the 1st described a kind of C
10-24The device of methyl esterification of fatty acid, wherein, deflection plate is up big and down small truncated cone-shaped.The deflection plate upper end is equal with the inner bag top, and the outer wall of the following end distance inner bag of deflection plate is 0.5～1cm, and deflection plate is fixed on the inwall of shell with lattice.
3. like above-mentioned the 1st described a kind of C
10-24The device of methyl esterification of fatty acid, wherein, the ratio of I and II bringing-up section heat exchange area is 1: 0.5～1.
4. like above-mentioned the 1st described a kind of C
10-24The device of methyl esterification of fatty acid, wherein, I and II reaction chamber volume ratio is 1～1.5: 1.
5. like above-mentioned the 1st described a kind of C
10-24The device of methyl esterification of fatty acid, wherein, the gross area of I and II heat exchanging segment should satisfy 20～80m between the I and II reaction chamber volume
2/ m
3Relation.
6. like above-mentioned the 1st described a kind of C
10-24The device of methyl esterification of fatty acid, wherein, the interlayer that shell and inner bag form, the bottom position of interlayer is in one-level bringing-up section outer wall center.
7. like above-mentioned the 1st described a kind of C
10-24The device of methyl esterification of fatty acid wherein, all is equipped with the macropore strong acid cation exchange resin catalyst in the I and II reative cell.
The beneficial effect of the utility model: 1. reactant is heated evenly, has avoided the phenomenon of catalyst overheating inactivation.2. the catalyst packing factor is big, and production capacity is big.3. the catalyst surface fluid pressure is little, and the water of generation is prone to overflow, and helps the absorption of catalyst to reactant, has both improved reaction speed, has increased the conversion ratio of aliphatic acid again.4. deflection plate makes the liquid that flows out from top, second order reaction chamber, flows down with film like along inner bladder outer wall, and inner bag need not separation equipment and can obtain the high-load fatty acid methyl ester like the efficient film evaporimeter.5. catalyst filling, regeneration are conveniently.
(4) description of drawings:
A kind of C of Fig. 1
10-24The device sketch map of methyl esterification of fatty acid.
Fig. 2 is the vertical profile of deflection plate among Fig. 1.
In the accompanying drawing 1: 1. unload the catalyst mouth; 2. add the catalyst mouth; 3. lattice; 4. charging aperture; 5. distributor; 6. flange; 7. one-level bringing-up section; 8. discharging opening; 9. built-in flange; 10. interlayer; 11. first order reaction chamber; 12. secondary bringing-up section; 13. orifice plate; 14. second order reaction chamber; 15. deflection plate; 16. silk screen; 17. gaseous phase outlet; 18. thermometer; 19. shell; 20. manhole; 21. inner bag.
(5) specific embodiment:
Below in conjunction with accompanying drawing the utility model is further specified.
This device comprises: one-level bringing-up section 7, bottom have charging aperture 4 and distributor 5, and top is connected with flange 6 with 11 lower ends, first order reaction chamber; Catalyst is equipped with in first order reaction chamber 11, and all there is built-in flange 9 inside, two, and silk screen 16 is fixed on it with orifice plate 13; 11 upper ends, first order reaction chamber link to each other with flange 6 with secondary bringing-up section 12 lower ends; Secondary bringing-up section 12 upper ends link to each other with flange 6 with 14 lower ends, second order reaction chamber; Catalyst is equipped with in second order reaction chamber 14, and all there is built-in flange 9 inside, two up and down, and silk screen 16 is fixed on it with orifice plate 13; One-level bringing-up section 7 outer wall middle and lower parts are equipped with a flange 6 and are linked to each other with shell 19 bottoms; Shell 19 tops are higher than the height of 21 1 shell end sockets of inner bag at least; Form interlayer 10 between shell 19 and the inner bag 21; Discharging opening 8 is arranged at interlayer 10 bottoms; Between shell 19 and inner bag 21 tops deflection plate 15 is arranged, deflection plate 15 upper ends are equal with inner bag 21 tops, and the outer wall of the following end distance inner bag 21 of deflection plate 15 is 0.5～1cm, and deflection plate 15 usefulness lattice 3 are fixed on the inwall of shell 19; Gaseous phase outlet 17 is arranged at the top of shell 19.
Preferred device, said deflection plate 15 is up big and down small truncated cone-shaped, and deflection plate 15 upper ends are equal with inner bag 21 tops, and the outer wall of the following end distance inner bag 21 of deflection plate 15 is 0.5～1cm, and deflection plate 15 usefulness lattice 3 are fixed on the inwall of shell 19.
Preferred device, the ratio of said I and II bringing-up section 7,12 heat exchange areas is 1: 0.5～1.
Preferred device, said I and II reative cell 11,14 volumetric ratios are 1～1.5: 1.
Preferred device, the gross area of said I and II heat exchanging segment 7,12 should satisfy 20～80m between I and II reative cell 11,14 volumes
2/ m
3Relation.
Preferred device, the interlayer that said shell 19 and inner bag 21 form, the bottom position of interlayer 10 is in one-level bringing-up section 7 outer wall center.
Preferred device all is equipped with the macropore strong acid cation exchange resin catalyst in the said I and II reative cell 11,14.
Raw material after distributor 5 is evenly distributed 7 intensifications of one-level bringing-up section, gets into first order reaction chamber 11 by charging aperture 4, and large hole cation exchanger resin is equipped with in first order reaction chamber 11, under the effect of catalyst, esterification takes place.After the mixture that flows out from first order reaction chamber 11 gets into secondary bringing-up section 12 heat temperature raisings; Get into second order reaction chamber 14; Macropore strong acid ion exchange resin is equipped with in second order reaction chamber 14, under the effect of catalyst, does not have the aliphatic acid of reaction and excessive methyl alcohol generation esterification to generate fatty acid methyl ester.From the component that comes out in 14 tops, second order reaction chamber, mainly contain fatty acid methyl ester, first alcohol and water.Water and methyl alcohol major part are gone out from gaseous phase outlet 17 with vapor form; Fatty acid methyl ester and a spot of water are dirty with filminess along inner bladder outer wall 21; Wall 21 effects outside the tank are further dehydration by evaporation down, and the interlayer bottom is the fatty acid methyl ester of high-load, flows out through discharging opening 8 to be finished product.Content through the gas chromatographic detection fatty acid methyl ester can reach more than 98%; The conversion ratio that calculates oleic acid through the acid value of chemical examination product reaches 99%.
Claims (4)
1. C
10-24The device of methyl esterification of fatty acid is characterized in that: said device is a segmentation heating, segmentation reaction, double-deck fixed bed type reactor, mainly contains shell, inner bag, deflection plate; Shell links to each other with flange with inner bag, forms interlayer, and discharging opening is arranged at the interlayer bottom; Deflection plate is arranged at interlayer top, and cover top portion has gaseous phase outlet, and charging aperture, distributor are arranged at the inner bag bottom; Successively up: one-level bringing-up section, first order reaction chamber, secondary bringing-up section, second order reaction chamber link to each other with flange; The I and II reative cell all is equipped with cation exchange resin catalyst, and all there is inner flange inside, two, and the orifice plate that accompanies silk screen is fixed on the inner flange.
2. according to claim 1 C
10-24The device of methyl esterification of fatty acid is characterized in that: deflection plate is up big and down small truncated cone-shaped, and the deflection plate upper end is equal with the inner bag top, and the outer wall of the following end distance inner bag of deflection plate is 0.5～1cm, and deflection plate is fixed on the inwall of shell with lattice.
3. according to claim 1 C
10-24The device of methyl esterification of fatty acid is characterized in that: the gross area of I and II heat exchanging segment, should satisfy 20～80m between the I and II reaction chamber volume
2/ m
3Relation.
4. according to claim 1 C
10-24The device of methyl esterification of fatty acid is characterized in that: the interlayer that shell and inner bag form, the bottom position of interlayer is in one-level bringing-up section outer wall center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203343486U CN202283465U (en) | 2011-09-07 | 2011-09-07 | C10-24 fatty acid methyl esterification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203343486U CN202283465U (en) | 2011-09-07 | 2011-09-07 | C10-24 fatty acid methyl esterification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202283465U true CN202283465U (en) | 2012-06-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203343486U Expired - Fee Related CN202283465U (en) | 2011-09-07 | 2011-09-07 | C10-24 fatty acid methyl esterification device |
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|---|---|
| CN (1) | CN202283465U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106732199A (en) * | 2017-01-06 | 2017-05-31 | 中国化学工程第十四建设有限公司 | For the catalytic reactor of sewage disposal |
-
2011
- 2011-09-07 CN CN2011203343486U patent/CN202283465U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106732199A (en) * | 2017-01-06 | 2017-05-31 | 中国化学工程第十四建设有限公司 | For the catalytic reactor of sewage disposal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20120907 |