CN203458944U - Tail gas adsorption device for synthesizing S-2-methyl chloropropionate - Google Patents
Tail gas adsorption device for synthesizing S-2-methyl chloropropionate Download PDFInfo
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- CN203458944U CN203458944U CN201320532068.5U CN201320532068U CN203458944U CN 203458944 U CN203458944 U CN 203458944U CN 201320532068 U CN201320532068 U CN 201320532068U CN 203458944 U CN203458944 U CN 203458944U
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Abstract
The utility model discloses a tail gas adsorption device for synthesizing S-2-methyl chloropropionate. The tail gas adsorption device comprises a reaction kettle, a condenser, a gas-liquid separator, a tail gas buffer tank and a tail gas treatment component; particularly the tail gas adsorption device is provided with two groups of liquid seal U-shaped pipes; an air outlet and a liquid inlet are formed in the top of the reaction kettle and are respectively connected with the two groups of liquid seal U-shaped pipes; the bottom of a condenser pipe is connected with the gas-liquid separator; the gas-liquid separator is connected with the tail gas buffer tank; the top of the tail gas buffer tank is connected with the tail gas treatment component through a pipeline, and the bottom of the tail gas buffer tank is connected to the second liquid seal U-shaped pipe. According to the tail gas adsorption device for synthesizing S-2-methyl chloropropionate, the liquid seal U-shaped pipes and the condenser are used for performing external reflux, so that reacted raw materials which are easily vaporized are not lost, the raw materials are saved, and the cost is reduced. Meanwhile, the condensate in the condenser does not directly flow back into the reaction kettle, the safety of the reaction kettle is guaranteed, and the treated tail gas reaches the emission standard.
Description
Technical field
The utility model relates to a kind of tail gas adsorption device, relates in particular to a kind of tail gas adsorption device of synthetic S-2-methyl chloropropionate, mainly belongs to the technical field of chemical industry equipment.
Background technology
The general route that adopts D-ALPHA-Hydroxypropionic acid methyl esters and thionyl chloride reaction in the technique of the synthetic S-2-of manufacture methyl chloropropionate, reaction by-product sulfur dioxide and hydrogen chloride gas.In order to make the raw material that participates in reaction fully react and the gas of reaction generation must be removed in time, conventionally adopt the mode of heating to improve on the one hand reaction speed, on the other hand the gas of reaction generation is driven out of.Utilize vent gas treatment adsorbent equipment to reclaim the raw material of vaporization, reaction by-product sulfur dioxide and hydrogen chloride gas are absorbed to processing acquisition nitration mixture (dilute sulfuric acid, hydrochloric acid) take-away.
Summary of the invention
The purpose of this utility model is to propose a kind of tail gas adsorption device of synthetic S-2-methyl chloropropionate.
The purpose of this utility model, to be achieved by the following technical programs: a kind of tail gas adsorption device of synthetic S-2-methyl chloropropionate, comprise reactor, condenser, gas-liquid separator, tail gas buffer and vent gas treatment assembly, it is characterized in that: described tail gas adsorption device is provided with the U-shaped pipe of the first fluid-tight and the U-shaped pipe of the second fluid-tight, described reactor top is provided with gas outlet and inlet, the gas outlet of the U-shaped pipe of described the first fluid-tight one end coupled reaction still, the other end connects condenser, the inlet of the U-shaped pipe of described the second fluid-tight one end coupled reaction still, the other end connects gas-liquid separator, described condenser bottom is connected with gas-liquid separator, described gas-liquid separator connects tail gas buffer, described tail gas buffer top connects vent gas treatment assembly by pipeline, bottom is connected to the U-shaped pipe of the second fluid-tight by pipeline.
Further, described tail gas adsorption device is also provided with secondary condenser, described secondary condenser is arranged between gas-liquid separator and tail gas buffer, described secondary condenser top connects gas-liquid separator by pipeline, bottom is provided with two arms, one of them arm connects the U-shaped pipe of the second fluid-tight, and another arm is connected to tail gas buffer top.
Further, described vent gas treatment assembly comprises falling-film absorber, packed absorber, nitration mixture groove and liquid caustic soda neutralization chamber, described falling-film absorber top connects tail gas buffer top by pipeline, falling-film absorber bottom connects nitration mixture groove by pipeline, described nitration mixture groove is provided with the conveying pipeline that is connected to falling-film absorber top, described falling-film absorber bottom is also provided with venthole, described venthole is by bottom, conduit bonding pad absorption tower, described packing material absorbing top of tower is provided with emptying passage, described packing material absorbing tower bottom connects liquid caustic soda neutralization chamber by pipeline, described liquid caustic soda neutralization chamber is provided with the transfer tube that is connected to packing material absorbing top of tower.
Apply tail gas adsorption device of the present utility model, be provided with the U-shaped pipe of fluid-tight and condenser and carry out exteenal reflux, the raw material of the easy vaporization of reaction can not run off, saved raw material, reduced cost; Guarantee that condenser inner condensat liquid can directly not be back to reactor simultaneously, guaranteed the safety of reactor, tail gas reaches discharge standard after treatment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the tail gas adsorption device of the synthetic S-2-methyl chloropropionate of the utility model.
The specific embodiment
Below just accompanying drawing in conjunction with the embodiments, is described in further detail the specific embodiment of the present utility model, so that technical solutions of the utility model are easier to understand, grasp.
As shown in Figure 1, the tail gas adsorption device of synthetic S-2-methyl chloropropionate, comprise reactor 1, condenser 2, gas-liquid separator 3, tail gas buffer 4 and vent gas treatment assembly 5, especially, tail gas adsorption device is provided with the U-shaped pipe 6 of the first fluid-tight and the U-shaped pipe 7 of the second fluid-tight, reactor 1 top is provided with gas outlet 11 and inlet 12, the gas outlet 11 of the U-shaped pipe 6 one end coupled reaction stills 1 of the first fluid-tight, the other end connects condenser 2, the inlet 12 of the U-shaped pipe 7 one end coupled reaction stills 1 of the second fluid-tight, the other end connects gas-liquid separator 3, condenser 2 bottoms are connected with gas-liquid separator 3, gas-liquid separator 3 connects tail gas buffer 4, tail gas buffer 4 tops connect vent gas treatment assembly 5 by pipeline, bottom is connected to the U-shaped pipe 7 of the second fluid-tight by pipeline.
For optimizing this device, tail gas adsorption device is also provided with secondary condenser 8, secondary condenser 8 is arranged between gas-liquid separator 3 and tail gas buffer 4, secondary condenser 8 tops connect gas-liquid separator 3 by pipeline, bottom is provided with two arms, one of them arm connects the U-shaped pipe 7 of the second fluid-tight, and another arm is connected to tail gas buffer 4 tops.
In addition, vent gas treatment assembly comprises falling-film absorber, packed absorber, nitration mixture groove and liquid caustic soda neutralization chamber, falling-film absorber top connects tail gas buffer top by pipeline, falling-film absorber bottom connects nitration mixture groove by pipeline, nitration mixture groove is provided with the conveying pipeline that is connected to falling-film absorber top, falling-film absorber bottom is also provided with venthole, venthole is by bottom, conduit bonding pad absorption tower, packing material absorbing top of tower is provided with emptying passage, packing material absorbing tower bottom connects liquid caustic soda neutralization chamber by pipeline, liquid caustic soda neutralization chamber is provided with the transfer tube that is connected to packing material absorbing top of tower, accompanying drawing omits each parts mark in vent gas treatment assembly 5.
During concrete enforcement, adopt condensed in two stages device, tail gas and part material by the U-shaped pipe of the first fluid-tight through first-stage condenser condensation, condensed raw material enters gas-liquid separator, by the U-shaped pipe of the second fluid-tight, be back to reactor again and continue to participate in reaction, residual exhaust enters the second condenser and continues condensation, condensed raw material enters reactor continuation participation reaction after being back to the U-shaped pipe of the second fluid-tight, be not condensed containing sulfur dioxide, the tail gas of hydrogen chloride gas enters tail gas buffer, a tail gas part can be dissolved in tail gas buffer, another part enters vent gas treatment assembly and carries out vent gas treatment, the function of vent gas treatment assembly realizes non-the utility model technology emphasis, therefore repeat no more.
By above-mentioned character express, can find out, the beneficial effects of the utility model: the synthesis tail gas of application the utility model S-2-methyl chloropropionate is processed adsorbent equipment, be provided with the U-shaped pipe of fluid-tight and condenser and carry out exteenal reflux, the raw material of the easy vaporization of reaction can not run off, save raw material, reduced cost; Guarantee that condenser inner condensat liquid can directly not be back to reactor simultaneously, guaranteed the safety of reactor, tail gas reaches discharge standard after treatment.
In addition to the implementation, the utility model can also have other embodiment.All employings are equal to the technical scheme of replacement or equivalent transformation formation, within all dropping on the utility model scope required for protection.
Claims (3)
1. synthesize the tail gas adsorption device of S-2-methyl chloropropionate, comprise reactor, condenser, gas-liquid separator, tail gas buffer and vent gas treatment assembly, it is characterized in that: described tail gas adsorption device is provided with the U-shaped pipe of the first fluid-tight and the U-shaped pipe of the second fluid-tight, described reactor top is provided with gas outlet and inlet, the gas outlet of the U-shaped pipe of described the first fluid-tight one end coupled reaction still, the other end connects condenser, the inlet of the U-shaped pipe of described the second fluid-tight one end coupled reaction still, the other end connects gas-liquid separator, described condenser bottom is connected with gas-liquid separator, described gas-liquid separator connects tail gas buffer, described tail gas buffer top connects vent gas treatment assembly by pipeline, bottom is connected to the U-shaped pipe of the second fluid-tight by pipeline.
2. synthesize according to claim 1 the tail gas adsorption device of S-2-methyl chloropropionate, it is characterized in that: described tail gas adsorption device is provided with secondary condenser, described secondary condenser is arranged between gas-liquid separator and tail gas buffer, described secondary condenser top connects gas-liquid separator by pipeline, bottom is provided with two arms, one of them arm connects the U-shaped pipe of the second fluid-tight, and another arm is connected to tail gas buffer top.
3. synthesize according to claim 1 the tail gas adsorption device of S-2-methyl chloropropionate, it is characterized in that: described vent gas treatment assembly comprises falling-film absorber, packed absorber, nitration mixture groove and liquid caustic soda neutralization chamber, described falling-film absorber top connects tail gas buffer top by pipeline, falling-film absorber bottom connects nitration mixture groove by pipeline, described nitration mixture groove is provided with the conveying pipeline that is connected to falling-film absorber top, described falling-film absorber bottom is also provided with venthole, described venthole is by bottom, conduit bonding pad absorption tower, described packing material absorbing top of tower is provided with emptying passage, described packing material absorbing tower bottom connects liquid caustic soda neutralization chamber by pipeline, described liquid caustic soda neutralization chamber is provided with the transfer tube that is connected to packing material absorbing top of tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532068.5U CN203458944U (en) | 2013-08-29 | 2013-08-29 | Tail gas adsorption device for synthesizing S-2-methyl chloropropionate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320532068.5U CN203458944U (en) | 2013-08-29 | 2013-08-29 | Tail gas adsorption device for synthesizing S-2-methyl chloropropionate |
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| CN203458944U true CN203458944U (en) | 2014-03-05 |
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| CN201320532068.5U Withdrawn - After Issue CN203458944U (en) | 2013-08-29 | 2013-08-29 | Tail gas adsorption device for synthesizing S-2-methyl chloropropionate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103463924A (en) * | 2013-08-29 | 2013-12-25 | 张家港市三联化工科技有限公司 | Adsorption device of synthesis tail gas of S-dichlorprop methyl ester |
-
2013
- 2013-08-29 CN CN201320532068.5U patent/CN203458944U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103463924A (en) * | 2013-08-29 | 2013-12-25 | 张家港市三联化工科技有限公司 | Adsorption device of synthesis tail gas of S-dichlorprop methyl ester |
| CN103463924B (en) * | 2013-08-29 | 2016-01-27 | 张家港市三联化工科技有限公司 | The tail gas adsorption device of synthesis S-2-methyl chloropropionate |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20160127 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140305 Effective date of abandoning: 20160127 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |