CN210138658U - Secondary recycling device for propylene glycol reaction water - Google Patents
Secondary recycling device for propylene glycol reaction water Download PDFInfo
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- CN210138658U CN210138658U CN201920446530.7U CN201920446530U CN210138658U CN 210138658 U CN210138658 U CN 210138658U CN 201920446530 U CN201920446530 U CN 201920446530U CN 210138658 U CN210138658 U CN 210138658U
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- carbonization
- pipeline
- reaction tower
- tower
- propylene glycol
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 105
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 title claims abstract description 57
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000004064 recycling Methods 0.000 title claims description 10
- 238000003763 carbonization Methods 0.000 claims abstract description 104
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000002994 raw material Substances 0.000 claims abstract description 30
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 22
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 22
- 239000012808 vapor phase Substances 0.000 claims abstract description 22
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 6
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 3
- 238000010924 continuous production Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 235000013772 propylene glycol Nutrition 0.000 description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 230000008676 import Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000010000 carbonizing Methods 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000012295 chemical reaction liquid Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The utility model relates to a propylene glycol reaction water secondary recycle device. The technical scheme is as follows: the middle-lower part of the carbonation reaction tower T7208 is connected to a carbon dioxide vapor phase line C1 through a pipeline, the feed line C4 is connected at the raw material inlet, the reuse water inlet is connected to a circulation line C2, the circulation line C2 is connected to the bottom of the carbonation reaction tower T7208 through a carbonation circulation pump P7223AB, the middle-lower part of the carbonation reaction tower T7209 is connected to a carbon dioxide vapor phase line C1 through a pipeline, the feed line C4 is connected at the raw material inlet, the reuse water inlet is connected to a circulation line C3, and the circulation line C3 is connected to the bottom of the carbonation reaction tower T7209 through a carbonation circulation pump P7224 AB. The utility model has the advantages that: the utility model discloses a through reaction water secondary recycle production, drop into raw materials water through the top of the tower feed inlet, through carbonization circulating pump circulation back, with the vapor phase carbon dioxide carbonization reaction that drops into in the tower to this continuous production who realizes propylene glycol carbonization reaction.
Description
Technical Field
The utility model relates to a propylene glycol production facility, in particular to propylene glycol reaction water secondary recycle device.
Background
The propylene glycol is also named α -propylene glycol, and is widely used as a moisture absorbent, an anti-freezing agent, a lubricant and a solvent in the food, medicine and cosmetic industries, wherein the propylene glycol is stored and stored in places with embankments, circulated air, and free from sunshine, open fire and other heat sources.
Disclosure of Invention
The utility model discloses an aim at is exactly to the above-mentioned defect that prior art exists, provides a propylene glycol reaction water secondary recycle device, through reaction water secondary recycle production, drops into raw material water through the top of the tower feed inlet, through carbonization circulating pump circulation back, with the vapor phase carbon dioxide carbonization reaction that drops into in the tower to this continuous production who realizes propylene glycol carbonization reaction.
The technical scheme is as follows: the device comprises a carbonization reaction tower T7208, a carbonization reaction tower T7209, a carbonization circulating pump P7223AB, a carbonization circulating pump P7224AB and a sodium carbonate filter plate-and-frame filter press F, wherein the middle lower part of the carbonization reaction tower T7208 is connected to a carbon dioxide vapor phase pipeline C1 through a pipeline, the top of the carbonization reaction tower T7208 is provided with a raw material inlet, the raw material inlet is connected with a feed pipeline C4, the top of the carbonization reaction tower T7208 is provided with a reuse water inlet, the reuse water inlet is connected with a first circulating pipeline C2, the first circulating pipeline C2 is connected to the bottom of the carbonization reaction tower T7208 through a carbonization circulating pump P7223AB, the first circulating pipeline C2 is provided with a switch valve, the middle lower part of the carbonization reaction tower T7209 is connected to a carbon dioxide vapor phase pipeline C1 through a pipeline, the top of the carbonization reaction tower T7209 is provided with a raw material inlet, the raw material inlet is connected to a feed pipeline C4, the top of the carbonization reaction tower T7209, the second circulation line C3 is connected to the bottom of the carbonation reaction tower T7209 by a carbonation circulation pump P7224AB, and an on-off valve is provided on the second circulation line C3.
Preferably, the carbonization circulating pump P7223AB is connected to the sodium carbonate salt filter plate-and-frame filter press F through a pipeline, and a switch valve is arranged on the pipeline between the carbonization circulating pump P7223AB and the sodium carbonate salt filter plate-and-frame filter press F.
Preferably, the carbonization circulating pump P7224AB is connected to the sodium carbonate salt filter plate-and-frame filter press F through a pipeline, and a switch valve is arranged on the pipeline between the carbonization circulating pump P7224AB and the sodium carbonate salt filter plate-and-frame filter press F.
Preferably, the top of the carbonation reaction tower T7208 is connected to the top of the carbonation reaction tower T7209 through a pipeline.
Preferably, the top of the carbonation reaction tower T7208 is connected to the condenser L7211A through a pipeline, and the top of the carbonation reaction tower T7209 is connected to the condenser L7211A through a pipeline.
Preferably, condenser L7211A is connected by a pipeline to chiller L7212B, and chiller L7212B is connected by a pipeline to light liquid surge tank V7202A.
The utility model has the advantages that: the utility model is produced by secondary recycling of reaction water, raw material water is fed through a feed inlet at the top of the tower, and after circulating through a carbonization circulating pump, the raw material water is carbonized with vapor phase carbon dioxide fed into the tower, so that the continuous production of propylene glycol carbonization reaction is realized; the utility model discloses a reaction recycle water feeding output coarse product in succession reduces intensity of labour, has improved the product yield, and the yield reaches more than 60%, has alleviateed earlier stage reaction system load simultaneously, has improved the device throughput.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
in the figure: the system comprises a carbonization reaction tower T7208, a condenser L7211A, a deep cooler L7212B, a light liquid buffer tank V7202B, a carbonization reaction tower T7209, a carbonization circulating pump P7223AB, a carbonization circulating pump P7224AB, a sodium carbonate filter plate-and-frame filter press F, a carbon dioxide vapor phase pipeline C1, a first circulating pipeline C2, a second circulating pipeline C3 and a feeding pipeline C4.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
The utility model discloses a carbonization reaction tower T7208, carbonization reaction tower T7209, carbonization circulation pump P7223AB, carbonization circulation pump P7224AB, sodium carbonate salt filter plate frame filter press F, through pipe connection to carbon dioxide vapor phase pipeline C1 in carbonization reaction tower T7208's well lower part, be equipped with the ooff valve on the pipeline between carbonization reaction tower T7208's well lower part and carbon dioxide vapor phase pipeline C1, when carbonization reaction tower T7208 uses, open the ooff valve on the pipeline between carbonization reaction tower T7208's well lower part and carbon dioxide vapor phase pipeline C1, let in carbon dioxide, carbonization reaction tower T7208's top is equipped with the raw materials import, feed line C4 is connected to raw materials import department, carbonization reaction tower T7208's top is equipped with the reuse water import, reuse water import connects first circulation pipeline C2, first circulation pipeline C2 is connected to carbonization reaction tower T7208's bottom through carbonization circulation pump P7223AB, be equipped with the ooff valve on first circulation pipeline C2, opening a switch valve on a first circulation pipeline C2, feeding raw material water through a feed inlet at the top of the tower, circulating the raw material water through a carbonization circulation pump, the middle-lower part of the carbonization reaction tower T7209 is connected to a carbon dioxide vapor pipeline C1 through a pipeline, a switch valve is arranged on the pipeline between the middle-lower part of the carbonization reaction tower T7209 and the carbon dioxide vapor pipeline C1, when the carbonization reaction tower T7209 is used, opening a switch valve on a pipeline between the middle lower part of the carbonization reaction tower T7209 and the carbon dioxide vapor phase pipeline C1, introducing carbon dioxide, arranging a raw material inlet at the top of the carbonization reaction tower T7209, the raw material inlet is connected with a feed pipeline C4, the top of the carbonization reaction tower T7209 is provided with a reuse water inlet, the reuse water inlet is connected with a second circulation pipeline C3, the second circulation pipeline C3 is connected with the bottom of the carbonization reaction tower T7209 through a carbonization circulation pump P7224AB, and the second circulation pipeline C3 is provided with a switch valve. Opening a switch valve on a second circulating pipeline C3, feeding raw material water through a feeding hole at the top of the tower, circulating the raw material water through a carbonization circulating pump, carbonizing the raw material water with vapor-phase carbon dioxide fed into the tower, feeding the raw material water through the feeding hole at the top of the tower, circulating the raw material water through the carbonization circulating pump, and carbonizing the raw material water with the vapor-phase carbon dioxide fed into the tower, thereby realizing the continuous production of the propylene glycol carbonization reaction.
Wherein, carbonization circulating pump P7223AB is connected to sodium carbonate salt filter plate-and-frame filter press F through the pipeline, be equipped with the ooff valve on the pipeline between carbonization circulating pump P7223AB and the sodium carbonate salt filter plate-and-frame filter press F, open the ooff valve on the pipeline between carbonization circulating pump P7223AB and the sodium carbonate salt filter plate-and-frame filter press F, close the ooff valve on first circulation pipeline C2, after carbonization reaction tower T7208 through intermittent carbonization reaction for 2 hours, carry the material to the plate-and-frame filter press through tower cauldron carbonization circulating pump P7223AB, carry out the filter-pressing operation.
In addition, a carbonization circulating pump P7224AB is connected to a sodium carbonate salt filter plate-and-frame filter press F through a pipeline, a switch valve is arranged on the pipeline between the carbonization circulating pump P7224AB and the sodium carbonate salt filter plate-and-frame filter press F, the switch valve on the pipeline between the carbonization circulating pump P7224AB and the sodium carbonate salt filter plate-and-frame filter press F is opened, the switch valve of a second circulating pipeline C3 is closed, and after the carbonization reaction tower T7208 is subjected to intermittent carbonization reaction for 2 hours, the material is conveyed to the plate-and-frame filter press through a tower kettle carbonization circulating pump P7224AB to perform filter.
The top of the carbonation reaction tower T7208 is connected to the top of the carbonation reaction tower T7209 by a pipeline, the top of the carbonation reaction tower T7208 is connected to the condenser L7211A by a pipeline, and the top of the carbonation reaction tower T7209 is connected to the condenser L7211A by a pipeline, thereby connecting the carbonation reaction tower T7208, the carbonation reaction tower T7209, and the condenser L7211A.
And condenser L7211A is connected to deep cooler L7212B through the pipeline, deep cooler L7212B is connected to light liquor buffer tank V7202A through the pipeline, the overhead vapor phase water and methanol of carbonization reaction tower T7208 or carbonization reaction tower T7209 are continuously discharged, and the condensate is pushed by the amount of the vapor phase to be cryogenically recovered to light liquor buffer tank V7202A again.
When the device is used, raw materials continuously enter a carbonization reaction tower from the top of the carbonization reaction tower according to a certain amount (10T/h) for carbonization reaction, raw material water is fed through a feed inlet at the top of the carbonization reaction tower, and enters the carbonization reaction tower T7208 after being circulated by a carbonization circulating pump to be carbonized with vapor-phase carbon dioxide fed into the tower, the temperature of a kettle of the carbonization reaction tower T7208 is controlled to be about 90-105 ℃ by adjusting the circulating condensed water amount of the tower body, the reaction liquid level of the carbonization reaction tower is controlled to be about 80%, vapor-phase water and methanol at the top of the carbonization reaction tower T7208 are continuously discharged, condensate is pushed by the vapor-phase amount to be cryogenically recycled to a light liquid buffer tank V7202A again, and after the carbonization reaction tower T7208 is subjected to intermittent carbonization reaction for 2 hours, the materials are conveyed to a; when the liquid level of the carbonization reaction tower T7208 reaches 80%, switching into a reaction carbonization tower T7209, circularly sampling the carbonization reaction tower T7208, and sending out to a plate-and-frame filter press for filter pressing operation after the chemical examination and the precipitation are qualified; and when the liquid level of the carbonization reaction tower T7209 reaches 80%, switching into the carbonization reaction tower T7208, circularly sampling the carbonization reaction tower T7209, carrying out chemical examination and precipitation, sending the qualified product out to a plate-and-frame filter press for filter pressing operation, and repeating the steps for switching the two reaction carbonization towers.
The utility model realizes the continuous production of propylene glycol carbonization reaction by the secondary recycling production of reaction water, the raw material water is input through the feed inlet at the top of the tower, and after the circulation of the carbonization circulating pump, the raw material water reacts with the vapor phase carbon dioxide input in the tower; the utility model discloses a reaction recycle water feeding output coarse product in succession reduces intensity of labour, has improved the product yield, and the yield reaches more than 60%, has alleviateed earlier stage reaction system load simultaneously, has improved the device throughput.
The above description is only a preferred embodiment of the present invention, and any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the technical solutions described above. Therefore, any simple modifications or equivalent replacements made according to the technical solution of the present invention belong to the scope of the claimed invention as far as possible.
Claims (6)
1. A secondary recycling device for propylene glycol reaction water is characterized in that: comprises a carbonization reaction tower (T7208), a carbonization reaction tower (T7209), a carbonization circulating pump (P7223 AB), a carbonization circulating pump (P7224 AB) and a sodium carbonate filter plate-and-frame filter press (F), wherein the middle lower part of the carbonization reaction tower (T7208) is connected to a carbon dioxide vapor phase pipeline (C1) through a pipeline, the top of the carbonization reaction tower (T7208) is provided with a raw material inlet, the raw material inlet is connected with a feeding pipeline (C4), the top of the carbonization reaction tower (T7208) is provided with a reuse water inlet, the reuse water inlet is connected with a first circulating pipeline (C2), the first circulating pipeline (C2) is connected to the bottom of the carbonization reaction tower (T7208) through a carbonization circulating pump (P7223 AB), the first circulating pipeline (C2) is provided with a switch valve, the middle lower part of the carbonization reaction tower (T7209) is connected to the carbon dioxide vapor phase pipeline (C1) through a pipeline, the top of the carbonization reaction tower (T7209) is provided with a raw material inlet, the raw material inlet, the top of the carbonization reaction tower (T7209) is provided with a reuse water inlet which is connected with a second circulation pipeline (C3), the second circulation pipeline (C3) is connected to the bottom of the carbonization reaction tower (T7209) through a carbonization circulation pump (P7224 AB), and the second circulation pipeline (C3) is provided with a switch valve.
2. The secondary recycling device of propylene glycol reaction water as claimed in claim 1, which is characterized in that: the carbonization circulating pump (P7223 AB) is connected to the sodium carbonate salt filter plate-and-frame filter press (F) through a pipeline, and a switch valve is arranged on the pipeline between the carbonization circulating pump (P7223 AB) and the sodium carbonate salt filter plate-and-frame filter press (F).
3. The secondary recycling device of propylene glycol reaction water as claimed in claim 1, which is characterized in that: the carbonization circulating pump (P7224 AB) is connected to the sodium carbonate salt filter plate-and-frame filter press (F) through a pipeline, and a switch valve is arranged on the pipeline between the carbonization circulating pump (P7224 AB) and the sodium carbonate salt filter plate-and-frame filter press (F).
4. The secondary recycling device of propylene glycol reaction water as claimed in claim 1, which is characterized in that: the top of the carbonation reaction tower (T7208) is connected to the top of the carbonation reaction tower (T7209) through a pipeline.
5. The secondary recycling device of propylene glycol reaction water as claimed in claim 4, which is characterized in that: the top of the carbonation reaction tower (T7208) was connected to a condenser (L7211A) through a line, and the top of the carbonation reaction tower (T7209) was connected to a condenser (L7211A) through a line.
6. The secondary recycling device of propylene glycol reaction water as claimed in claim 5, which is characterized in that: the condenser (L7211A) was connected by pipeline to a chiller (L7212B) and the chiller (L7212B) was connected by pipeline to a light liquid surge tank (V7202A).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446530.7U CN210138658U (en) | 2019-04-03 | 2019-04-03 | Secondary recycling device for propylene glycol reaction water |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920446530.7U CN210138658U (en) | 2019-04-03 | 2019-04-03 | Secondary recycling device for propylene glycol reaction water |
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| Publication Number | Publication Date |
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| CN210138658U true CN210138658U (en) | 2020-03-13 |
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| CN201920446530.7U Active CN210138658U (en) | 2019-04-03 | 2019-04-03 | Secondary recycling device for propylene glycol reaction water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453747A (en) * | 2020-04-08 | 2020-07-28 | 河北云瑞化工设备有限公司 | Device for preparing battery-grade lithium carbonate from crude lithium carbonate and using method of device |
-
2019
- 2019-04-03 CN CN201920446530.7U patent/CN210138658U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111453747A (en) * | 2020-04-08 | 2020-07-28 | 河北云瑞化工设备有限公司 | Device for preparing battery-grade lithium carbonate from crude lithium carbonate and using method of device |
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Address after: No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province 257000 Patentee after: Shenghua New Material Group Co.,Ltd. Address before: No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province 257000 Patentee before: SHANDONG SHIDA SHENGHUA CHEMICAL GROUP Co.,Ltd. |
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Address after: No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province 257000 Patentee after: Shi Dashenghua New Materials Group Co.,Ltd. Country or region after: China Address before: No. 198, Tongxing Road, Kenli District, Dongying City, Shandong Province 257000 Patentee before: Shenghua New Material Group Co.,Ltd. Country or region before: China |