CN103512382A - Tail gas recovery device for producing cellulose ether - Google Patents
Tail gas recovery device for producing cellulose ether Download PDFInfo
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- CN103512382A CN103512382A CN201210221626.6A CN201210221626A CN103512382A CN 103512382 A CN103512382 A CN 103512382A CN 201210221626 A CN201210221626 A CN 201210221626A CN 103512382 A CN103512382 A CN 103512382A
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- tail gas
- recovery device
- gas recovery
- cellulose ether
- device body
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Abstract
The invention provides a tail gas recovery device for producing cellulose ether. The tail gas recovery device for producing cellulose ether comprises a tail gas recovery device body (1), wherein a low-temperature baffle (2) is installed in the tail gas recovery device body (1), a tail gas inlet (3) is formed in the tail gas recovery device body, a chilled water inlet (5) and a solvent outlet (4) are formed in the lower portion of the tail gas recovery device body, a chilled water outlet (6) and a tail gas outlet (7) are formed in the upper portion of the tail gas recovery device body, and a liquid level meter (8) is installed on the tail gas recovery device body (1). According to the tail gas recovery device, solvent contained in tail gas can be recycled and reused, the recycling rate reaches more than 99%, cost is saved for production of cellulose ether, and meanwhile pollution of the tail gas to the environment is reduced.
Description
Technical field
The invention belongs to fine chemistry industry production field, relate to the retracting device of cellulose ether, particularly a kind of cellulose ether is produced device for recovering tail gas.
Background technology
Present stage, in the production process of cellulose ether, mostly use the lower alcohols such as ethanol or isopropyl alcohol as reaction dissolvent, for cellulose ether material can fully be reacted in reactor, can use vavuum pump that the air in reactor is extracted out, thereby the oxidation reaction of isolated material, the quality of raising product, the air of these extractions can be discharged by exhausting pipeline; Cellulose ether material also has a little gaseous solvent and discharges by exhausting pipeline in recovery or washing process, and the tail gas producing in these production processes has number of chemical material, and environment is had to certain pollution, has improved again production cost simultaneously.
Summary of the invention
The object of this invention is to provide a kind of cellulose ether and produce device for recovering tail gas.This device can, by the solvent recovery recycling in tail gas, be avoided the pollution of tail gas to environment.
The object of invention is achieved in that a kind of cellulose ether production device for recovering tail gas, it comprises device for recovering tail gas, low temperature plate washer is installed in device for recovering tail gas, device for recovering tail gas is provided with gas inlet, be provided with chilled water import and solvent outlet below, top is provided with chilled water outlet and tail gas outlet, and liquid level gauge is housed on device for recovering tail gas.
This device can be by the solvent recovery recycling containing in tail gas, and recovery utilization rate reaches more than 99%, for the production of cellulose ether, has saved cost, has reduced tail gas staining environment simultaneously.
Accompanying drawing explanation
Accompanying drawing is that a kind of cellulose ether of the present invention is produced device for recovering tail gas schematic diagram.
The specific embodiment
Accompanying drawing shows a kind of cellulose ether of the present invention and produces device for recovering tail gas, it comprises that device for recovering tail gas 1, low temperature plate washer 2, gas inlet 3, solvent outlet 4, chilled water import 5, chilled water outlet 6, tail gas outlet 7, liquid level gauge 8 form, the specific embodiment:
The tail gas that cellulose ether produces in process of production enters in device for recovering tail gas 1 by gas inlet 3, chilled water is entered in the chuck of device for recovering tail gas 1 and in low temperature plate washer 2 by chilled water import 5, chilled water outlet 6 be arranged on device for recovering tail gas 1 above, chilled water is circulated in device for recovering tail gas 1, the temperature of device for recovering tail gas 1 can remain under certain low-temperature condition, make the solvent in tail gas become liquid state from gaseous state, tail gas is after multiple low temperature plate washer 2, solvent in tail gas can be recycled to device for recovering tail gas 1 bottom effectively, other gas is discharged by tail gas outlet 7, when liquid level gauge 8 shows that recovered solvent reaches after certain liquid level, solvent is delivered to production system by solvent outlet 4.
Claims (1)
1. a cellulose ether is produced device for recovering tail gas, it is characterized in that: it comprises device for recovering tail gas (1), low temperature plate washer (2) is installed in device for recovering tail gas, device for recovering tail gas is provided with gas inlet (3), be provided with chilled water import (5) and solvent outlet (4) below, top is provided with chilled water outlet (6) and tail gas outlet (7), and liquid level gauge (8) is housed on device for recovering tail gas (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221626.6A CN103512382B (en) | 2012-06-30 | 2012-06-30 | A kind of cellulose ether produces device for recovering tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210221626.6A CN103512382B (en) | 2012-06-30 | 2012-06-30 | A kind of cellulose ether produces device for recovering tail gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103512382A true CN103512382A (en) | 2014-01-15 |
| CN103512382B CN103512382B (en) | 2016-08-17 |
Family
ID=49895504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210221626.6A Active CN103512382B (en) | 2012-06-30 | 2012-06-30 | A kind of cellulose ether produces device for recovering tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103512382B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202063861U (en) * | 2011-05-06 | 2011-12-07 | 邸勇 | Tail-gas low-temperature recovery device |
| CN202061407U (en) * | 2011-05-06 | 2011-12-07 | 邸勇 | Waste gas treatment device |
| CN202061527U (en) * | 2011-05-06 | 2011-12-07 | 山东光大科技发展有限公司 | Volatile solvent water absorption processing device |
-
2012
- 2012-06-30 CN CN201210221626.6A patent/CN103512382B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202063861U (en) * | 2011-05-06 | 2011-12-07 | 邸勇 | Tail-gas low-temperature recovery device |
| CN202061407U (en) * | 2011-05-06 | 2011-12-07 | 邸勇 | Waste gas treatment device |
| CN202061527U (en) * | 2011-05-06 | 2011-12-07 | 山东光大科技发展有限公司 | Volatile solvent water absorption processing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103512382B (en) | 2016-08-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210623 Address after: Dongping Economic Development Zone, Dongping County, Tai'an City, Shandong Province Patentee after: Shandong Everbright Sailu New Material Technology Co.,Ltd. Address before: 271500 Dongping Industrial Park, Tai'an City, Shandong Province Patentee before: SHANDONG GUANGDA TECHNOLOGICAL DEVELOPMENT Co.,Ltd. |