CN202359044U - Methanol recovery device - Google Patents
Methanol recovery device Download PDFInfo
- Publication number
- CN202359044U CN202359044U CN2011204847409U CN201120484740U CN202359044U CN 202359044 U CN202359044 U CN 202359044U CN 2011204847409 U CN2011204847409 U CN 2011204847409U CN 201120484740 U CN201120484740 U CN 201120484740U CN 202359044 U CN202359044 U CN 202359044U
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- Prior art keywords
- methyl alcohol
- vacuum pump
- condenser
- methanol recovery
- recovery device
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Abstract
The utility model relates to a methanol recovery device, is mainly used for recovering methanol remaining from fatty acid methyl ester, and belongs to the methanol recovery device. At present, the methanol recovery device which is simple in structure, reasonable in design, convenient to use, reliable in performance and high in methanol recovery efficiency is unavailable. The methanol recovery device is characterized by comprising a distillation kettle, a vacuum pump, a first condenser, a second condenser and an absorption tower, wherein the vacuum pump is connected with the distillation kettle; the first condenser is connected with the vacuum pump; the second condenser is connected with the first condenser; and the absorption tower is connected with the second condenser. The methanol recovery device is reasonable in structural design, convenient to use, reliable in performance, and high in methanol recovery efficiency.
Description
Technical field
The utility model relates to a kind of device that reclaims methyl alcohol, is mainly used in to reclaim to remain in the methyl alcohol in the fatty acid methyl ester, belongs to a kind of device that reclaims methyl alcohol.
Background technology
In the technological process of producing fatty acid methyl ester, need from fatty acid methyl ester, to remove residual methyl alcohol, thereby improve the flash-point of product.When lipid acid (or grease) and methyl alcohol prepared in reaction fatty acid methyl ester; The methyl alcohol of the residual 5-10% of having in the fatty acid methyl ester that is prepared from; Usually adopt the mode of steam heating fatty acid methyl ester to remove methyl alcohol; Methyl alcohol is evaporated, the methyl alcohol gas that is evaporated through condenser condenses then, thus reach the purpose that reclaims methyl alcohol.
But because methyl esters and methyl alcohol dissolve each other, and both intermolecular have the attractive interaction effect, adopt steam-heated method after, still have the methyl alcohol about 1% to remain in the fatty acid methyl ester, must adopt the method for high vacuum high temperature precipitation to remove this part methyl alcohol.In high vacuum high temperature desolventizing method, the vacuum tightness in steam slipping is reached in the 200Pa, the still temperature is greater than 150 ℃, and precipitation is about 1 hour, makes the residual quantity of methyl alcohol less than 0.03%.But under this vacuum tightness, methanol gas can not be condensed into liquid in condensing surface, and methyl alcohol can only be extracted out by vacuum pump like this, drains in the atmosphere then, thereby causes environmental pollution, has wasted resource, has improved production cost.
In sum, also do not have at present a kind of simple in structure, reasonable in design, easy to use, dependable performance, the device of the recovery methyl alcohol that Methanol Recovery efficient is high.
The utility model content
The purpose of the utility model is to overcome the above-mentioned deficiency that exists in the prior art, and a kind of reasonable in design is provided, and is easy to use, dependable performance, the device of the recovery methyl alcohol that Methanol Recovery efficient is high.
The utility model addresses the above problem the technical scheme that is adopted: the constructional feature of the device of this recovery methyl alcohol is: comprise still kettle, vacuum pump, condensing surface, No. two condensing surfaces and absorption tower; Said vacuum pump is connected with still kettle; A said condensing surface is connected with vacuum pump; Said No. two condensing surfaces are connected with a condensing surface, and said absorption tower is connected with No. two condensing surfaces.
As preferably, the said condensing surface of the utility model is a horizontal condenser.
As preferably, said No. two condensing surfaces of the utility model are horizontal condenser.
As preferably, the said vacuum pump of the utility model is a dry vacuum pump.
The utility model compared with prior art has the following advantages and effect: simple in structure, reasonable in design; Scientific arrangement; Easy to use, the organic efficiency of methyl alcohol is high, effectively residual methyl alcohol in the weeding of grease fatty acid methyl esters; Can not produce when from fatty acid methyl ester, removing methyl alcohol and pollute, improve the utilization ratio of resource environment.
Description of drawings
Fig. 1 is the structural representation that reclaims the device of methyl alcohol among the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and through embodiment the utility model is done further to specify, following examples are to the explanation of the utility model and the utility model is not limited to following examples.
Embodiment.
Referring to Fig. 1; The device of the recovery methyl alcohol in the present embodiment comprises still kettle 1, vacuum pump 2, condensing surface 3, No. two condensing surfaces 4 and absorption towers 5, and wherein, No. one condensing surface 3 is a horizontal condenser; No. two condensing surfaces 4 also are horizontal condenser, and vacuum pump 2 is a dry vacuum pump.
The device that reclaims methyl alcohol in the present embodiment changes negative pressure and is condensed into the malleation condensation; Because the boiling point of normal pressure methanol is 64.5 ℃; Can condensation methyl alcohol gas with 30 ℃ with interior water coolant; The recovery that is condensed of overwhelming majority methyl alcohol gases, and then, make that the methyl alcohol more than 99.5% is recovered with-5 ℃ chilled brine cooled exhaust gas.The tail gas of rest part gets in the absorption tower 5 again and is absorbed, and Trace Methanol tail gas is dissolved in the water, and this water cycle is used, and when the content of methyl alcohol in the water reaches 3-5%, reclaims methyl alcohol again.Methyl alcohol after the recovery gets into the feeding system in the esterification technique again, and so circulation can effectively solve the pollution of methyl alcohol to environment, improves the utilization ratio of methyl alcohol, prevents the wasting of resources.
In addition, need to prove, the specific embodiment described in this specification sheets, its zero, the shape of parts, institute's title of being named etc. can be different, the above content described in this specification sheets only is to be illustrated what the utility model structure did.Allly conceive the equivalence that described structure, characteristic and principle do according to the utility model patent and change or simple change, include in the protection domain of the utility model patent.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment; Only otherwise depart from the structure of the utility model or surmount the defined scope of these claims, all should belong to the protection domain of the utility model.
Claims (4)
1. device that reclaims methyl alcohol; It is characterized in that: comprise still kettle, vacuum pump, condensing surface, No. two condensing surfaces and absorption tower; Said vacuum pump is connected with still kettle; A said condensing surface is connected with vacuum pump, and said No. two condensing surfaces are connected with a condensing surface, and said absorption tower is connected with No. two condensing surfaces.
2. the device of recovery methyl alcohol according to claim 1 is characterized in that: a said condensing surface is a horizontal condenser.
3. the device of recovery methyl alcohol according to claim 1 is characterized in that: said No. two condensing surfaces are horizontal condenser.
4. the device of recovery methyl alcohol according to claim 1 is characterized in that: said vacuum pump is a dry vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204847409U CN202359044U (en) | 2011-11-29 | 2011-11-29 | Methanol recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204847409U CN202359044U (en) | 2011-11-29 | 2011-11-29 | Methanol recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202359044U true CN202359044U (en) | 2012-08-01 |
Family
ID=46570247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204847409U Expired - Fee Related CN202359044U (en) | 2011-11-29 | 2011-11-29 | Methanol recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202359044U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569113A (en) * | 2015-01-27 | 2015-04-29 | 上海化工研究院 | Hot gas flow dissociation dewatering indirect Karl-Fischer-process analysis device |
| CN106699610A (en) * | 2016-12-21 | 2017-05-24 | 武汉青江化工黄冈有限公司 | Process and device for producing dimethyl sulfate with low methyl ether content |
-
2011
- 2011-11-29 CN CN2011204847409U patent/CN202359044U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104569113A (en) * | 2015-01-27 | 2015-04-29 | 上海化工研究院 | Hot gas flow dissociation dewatering indirect Karl-Fischer-process analysis device |
| CN106699610A (en) * | 2016-12-21 | 2017-05-24 | 武汉青江化工黄冈有限公司 | Process and device for producing dimethyl sulfate with low methyl ether content |
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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: 20120801 Termination date: 20191129 |