CN202951391U - Impurity trapping system for absorbing hydrochloric acid in production of dichlorobenzene - Google Patents
Impurity trapping system for absorbing hydrochloric acid in production of dichlorobenzene Download PDFInfo
- Publication number
- CN202951391U CN202951391U CN 201220646785 CN201220646785U CN202951391U CN 202951391 U CN202951391 U CN 202951391U CN 201220646785 CN201220646785 CN 201220646785 CN 201220646785 U CN201220646785 U CN 201220646785U CN 202951391 U CN202951391 U CN 202951391U
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- CN
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- Prior art keywords
- hydrochloric acid
- hydrogen chloride
- impurity
- chloride gas
- dichlorobenzene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model discloses an impurity trapping system for absorbing hydrochloric acid in production of dichlorobenzene. The impurity trapping system comprises a washing tower and a Roots blower, as well as a trapping tank, wherein hydrogen chloride gas with impurities is washed by the washing tower and enters the trapping tank from an outlet at the upper part of the washing tower in a tangential manner, the hydrogen chloride gas can upwards enter a hydrochloric acid absorption system from the outlet at the upper part of the trapping tank under the action of the Roots blower, and the impurities can downwards return to the washing tower from the outlet at the lower part of the trapping tank. The impurity trapping system disclosed by the utility model has the advantages of reducing benzene, chlorobenzene, dichlorobenzene and other impurities, which are entrained in the hydrogen chloride gas, improve the purity of the hydrogen chloride gas entering the absorption system, improve the quality of a byproduct, namely the hydrochloric acid, simultaneously reduce the consumption of raw materials in production of the dichlorobenzene and save production cost.
Description
Technical field
The utility model relates to the impurity capture system of absorption by Hydrochloric Acid in a kind of dichloro-benzenes production.
Background technology
The hydrogen chloride gas that in dichloro-benzenes production, reaction produces is sent into the absorption by Hydrochloric Acid system by roots blower and is made the hydrochloric acid take-away, carry the impurity such as benzene, Benzene Chloride and dichloro-benzenes during existing absorption by Hydrochloric Acid secretly due to hydrogen chloride gas serious, cause hydrochloric acid defective, whole process units consumption of raw materials is higher, has increased production cost.
The utility model content
The utility model purpose: for the problems referred to above, the purpose of this utility model is to provide the impurity capture system of absorption by Hydrochloric Acid in a kind of dichloro-benzenes production, reduces material the carrying secretly in hydrogen chloride gas such as benzene, Benzene Chloride and dichloro-benzenes.
Technical scheme: the impurity capture system of absorption by Hydrochloric Acid in a kind of dichloro-benzenes production, comprise scrubbing tower, roots blower, also comprise capture tank, with the hydrogen chloride gas of impurity after described scrubbing tower washing, enter described capture tank from described scrubbing tower top outlet tangent line, under the effect of described roots blower, hydrogen chloride gas upwards enters the absorption by Hydrochloric Acid system from the outlet of described capture tank top, and described impurity is got back to described scrubbing tower from described capture tank lower part outlet downwards.
Beneficial effect: compared with prior art, the utility model has the advantages that and reduced the impurity such as benzene, Benzene Chloride and dichloro-benzenes of carrying secretly in the hydrogen chloride gas, improved the purity of the hydrogen chloride gas that advances absorption system, the quality of by-product hydrochloric acid is improved, reduce the raw materials consumption that dichloro-benzenes is produced simultaneously, saved production cost.
The accompanying drawing explanation
Accompanying drawing is the utility model structural representation.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only for the utility model is described, be not used in restriction scope of the present utility model, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present utility model.
As shown in drawings, the impurity capture system of absorption by Hydrochloric Acid in a kind of dichloro-benzenes production, comprise scrubbing tower 1, roots blower 2, capture tank 3, with the hydrogen chloride gas of impurity after scrubbing tower 1 washing, export 4 tangent lines from scrubbing tower 1 top and enter capture tank 3, under the effect of roots blower 2, hydrogen chloride gas upwards enters the absorption by Hydrochloric Acid system from capture tank 3 top outlets 5, and impurity is got back to scrubbing tower 1 from capture tank 3 lower part outlets 6 downwards, then returns to the dichloro-benzenes reaction system and continue reaction.
Claims (1)
- A dichloro-benzenes produce in the impurity capture system of absorption by Hydrochloric Acid, comprise scrubbing tower (1), roots blower (2), it is characterized in that: also comprise capture tank (3), with the hydrogen chloride gas of impurity after described scrubbing tower (1) washing, enter described capture tank (3) from described scrubbing tower (1) top outlet tangent line, under the effect of described roots blower (2), hydrogen chloride gas upwards enters the absorption by Hydrochloric Acid system from the outlet of described capture tank (3) top, and described impurity is got back to described scrubbing tower (1) from described capture tank (3) lower part outlet downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646785 CN202951391U (en) | 2012-11-30 | 2012-11-30 | Impurity trapping system for absorbing hydrochloric acid in production of dichlorobenzene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220646785 CN202951391U (en) | 2012-11-30 | 2012-11-30 | Impurity trapping system for absorbing hydrochloric acid in production of dichlorobenzene |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202951391U true CN202951391U (en) | 2013-05-29 |
Family
ID=48456985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220646785 Expired - Fee Related CN202951391U (en) | 2012-11-30 | 2012-11-30 | Impurity trapping system for absorbing hydrochloric acid in production of dichlorobenzene |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202951391U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310875A (en) * | 2015-07-01 | 2017-01-11 | 启东久星化工有限公司 | System for separating organic matter from mixture of hydrogen chloride and organic matter |
-
2012
- 2012-11-30 CN CN 201220646785 patent/CN202951391U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106310875A (en) * | 2015-07-01 | 2017-01-11 | 启东久星化工有限公司 | System for separating organic matter from mixture of hydrogen chloride and organic matter |
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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: 20130529 Termination date: 20131130 |