CN201737865U - Furfural production surplus heat utilization system - Google Patents
Furfural production surplus heat utilization system Download PDFInfo
- Publication number
- CN201737865U CN201737865U CN2010202379363U CN201020237936U CN201737865U CN 201737865 U CN201737865 U CN 201737865U CN 2010202379363 U CN2010202379363 U CN 2010202379363U CN 201020237936 U CN201020237936 U CN 201020237936U CN 201737865 U CN201737865 U CN 201737865U
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- CN
- China
- Prior art keywords
- furfural
- tower
- pure water
- water device
- reboiler
- 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 - Lifetime
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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
- Y02P20/10—Process efficiency
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a furfural production surplus heat utilization system which belongs to the technical field of surplus heat utilization equipment. The system comprises a hydrolysis kettle and a furfural primary tower, wherein a pure water evaporator is arranged between the hydrolysis kettle and the furfural primary tower; an aldehyde steam outlet of the hydrolysis kettle is connected with a steam inlet of the pure water evaporator; and the steam outlet of the pure water evaporator is connected with steam inlet of a reboiler of the furfural primary tower, a furfural fractionating tower or a furfural dehydrating tower. The heat used by the furfural aftertreatment equipment which is the furfural primary tower, the furfural fractionating tower or the furfural dehydrating tower is the heat carried by aldehyde steam after hydrolysis, and the heat carried by aldehyde steam is sufficiently converted into a heat source for other equipment, therefore, the aldehyde steam surplus heat in a furfural hydrolysis system is effectively and sufficiently utilized, and the purposes of energy saving, consumption reducing, emission reducing and benefit increasing are achieved.
Description
Technical field
The utility model belongs to the UTILIZATION OF VESIDUAL HEAT IN equipment technical field, is specifically related to a kind of furfural and produces bootstrap system.
Background technology
Raw material and diluted acid boiling hydrolysis in hydrolysis kettle in the furfural production process, the generation temperature is 170-190 ℃ an aldehyde vapour after the hydrolysis, the aldehyde vapour that hydrolysis produces is through condenser cooling becoming aldehyde liquid, aldehyde liquid enters the primary tower distillation, make the furfural content in the aldehyde liquid reach 92%, aldehyde liquid is sent into rectifying tower after the dehydration tower dehydration refining, finally makes the finished product furfural.Heat and water of condensation heat exchange that condenser makes that aldehyde vapour carries are set between hydrolysis kettle and the primary tower, and the heat that aldehyde vapour carries is not utilized fully, causes the waste of heat.And the steam of primary tower, dehydration tower, rectifying tower all need additionally provide.
The utility model content
The purpose of this utility model is to provide a kind of furfural to produce bootstrap system, and this system can make the heat that aldehyde vapour carries in the furfural production system be fully used.
The utility model is by the following technical solutions:
Furfural is produced bootstrap system, comprise hydrolysis kettle and furfural primary tower, be provided with the evaporating pure water device between described hydrolysis kettle and the furfural primary tower, the aldehyde vapor outlet of hydrolysis kettle is connected with the steam inlet of evaporating pure water device, and the vapour outlet of evaporating pure water device is connected with the steam inlet of the reboiler of furfural primary tower, furfural rectifying tower or furfural dehydration tower.
When the vapour outlet of described evaporating pure water device was connected with the steam inlet of the reboiler of furfural primary tower, the vapour outlet of the evaporating pure water device while was connected with the steam inlet of the reboiler of furfural rectifying tower.
When the vapour outlet of described evaporating pure water device was connected with the steam inlet of the reboiler of furfural primary tower, the vapour outlet of the evaporating pure water device while was connected with the steam inlet of the reboiler of furfural dehydration tower.
When the vapour outlet of described evaporating pure water device was connected with the steam inlet of the reboiler of furfural rectifying tower, the vapour outlet of the evaporating pure water device while was connected with the steam inlet of the reboiler of furfural dehydration tower.
When the vapour outlet of described evaporating pure water device was connected with the steam inlet of the reboiler of furfural primary tower, the vapour outlet of evaporating pure water device was connected with the steam inlet of furfural rectifying tower with the reboiler of furfural dehydration tower simultaneously.
The aldehyde vapour condensate outlet of described evaporating pure water device is connected with the liquid-inlet of furfural primary tower, and the distillate outlet of furfural primary tower is connected with the liquid-inlet of furfural dehydration tower, and the discharge port of furfural dehydration tower is connected with the opening for feed of furfural rectifying tower.
The utility model can make the thermal source of aldehyde vapour as the evaporating pure water device, aldehyde vapour is heated as water vapor with pure water, water vapor is supplied with furfural primary tower, furfural rectifying tower or/and the furfural dehydration tower as heat, aldehyde vapour enters the distillation of furfural primary tower through the cooled aldehyde liquid of evaporating pure water device, through the dehydration of furfural dehydration tower, finally enter the distillation of furfural rectifying tower and be the finished product furfural then.The heat that aldehyde liquid finishing apparatus furfural primary tower in the utility model, furfural rectifying tower or furfural dehydration tower use is the heat that aldehyde vapour carries after the hydrolysis, the heat that aldehyde vapour is carried fully is converted into the required thermal source of other equipment, effectively make full use of the waste heat that aldehyde vapour carries in the furfural hydrolysis system, play energy-saving and cost-reducingly, reduce discharging the synergic purpose.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Furfural is as shown in Figure 1 produced bootstrap system, comprise hydrolysis kettle 1, furfural primary tower 3, furfural rectifying tower 5 and furfural dehydration tower 4, be provided with evaporating pure water device 2 between hydrolysis kettle 1 and the furfural primary tower 3, the aldehyde vapor outlet 11 of hydrolysis kettle 1 is connected with the steam inlet 21 of evaporating pure water device 2,22 whiles of vapour outlet of evaporating pure water device 2 and the reboiler 31 of furfural primary tower 3, the reboiler 51 of furfural rectifying tower 5 is connected with the steam inlet of the reboiler 41 of furfural dehydration tower 4, the aldehyde vapour condensate outlet 23 of evaporating pure water device 2 is connected with the liquid-inlet of furfural primary tower 3, the distillate outlet of furfural primary tower 3 is connected with the liquid-inlet of furfural dehydration tower 4, and the discharge port of furfural dehydration tower 4 is connected with the opening for feed of furfural rectifying tower 5.
The aldehyde vapour that hydrolysis kettle 1 hydrolysis produces is as the thermal source of evaporating pure water device 2, aldehyde vapour is heated as water vapor with the pure water in the evaporating pure water device 2, water vapor is supplied with furfural primary tower 3, furfural rectifying tower 5 and furfural dehydration tower 4 as heat, the aldehyde liquid of the aldehyde vapour condensate outlet 23 of evaporating pure water device 2 enters 3 distillations of furfural primary tower, then through 4 dehydrations of furfural dehydration tower, finally enter 5 distillations of furfural rectifying tower and be the finished product furfural, thereby the heat of aldehyde vapour is fully used.
Claims (6)
1. furfural is produced bootstrap system, comprise hydrolysis kettle and furfural primary tower, it is characterized in that: be provided with the evaporating pure water device between described hydrolysis kettle and the furfural primary tower, the aldehyde vapor outlet of hydrolysis kettle is connected with the steam inlet of evaporating pure water device, and the vapour outlet of evaporating pure water device is connected with the steam inlet of the reboiler of furfural primary tower, furfural rectifying tower or furfural dehydration tower.
2. furfural as claimed in claim 1 is produced bootstrap system, it is characterized in that: when the vapour outlet of described evaporating pure water device was connected with the steam inlet of the reboiler of furfural primary tower, the vapour outlet of the evaporating pure water device while was connected with the steam inlet of the reboiler of furfural rectifying tower.
3. furfural as claimed in claim 1 is produced bootstrap system, it is characterized in that: when the vapour outlet of described evaporating pure water device was connected with the steam inlet of the reboiler of furfural primary tower, the vapour outlet of the evaporating pure water device while was connected with the steam inlet of the reboiler of furfural dehydration tower.
4. furfural as claimed in claim 1 is produced bootstrap system, it is characterized in that: when the vapour outlet of described evaporating pure water device was connected with the steam inlet of the reboiler of furfural rectifying tower, the vapour outlet of the evaporating pure water device while was connected with the steam inlet of the reboiler of furfural dehydration tower.
5. furfural as claimed in claim 1 is produced bootstrap system, it is characterized in that: when the vapour outlet of described evaporating pure water device was connected with the steam inlet of the reboiler of furfural primary tower, the vapour outlet of evaporating pure water device was connected with the steam inlet of furfural rectifying tower with the reboiler of furfural dehydration tower simultaneously.
6. furfural as claimed in claim 5 is produced bootstrap system, it is characterized in that: the aldehyde vapour condensate outlet of described evaporating pure water device is connected with the liquid-inlet of furfural primary tower, the distillate outlet of furfural primary tower is connected with the liquid-inlet of furfural dehydration tower, and the discharge port of furfural dehydration tower is connected with the opening for feed of furfural rectifying tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202379363U CN201737865U (en) | 2010-06-25 | 2010-06-25 | Furfural production surplus heat utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202379363U CN201737865U (en) | 2010-06-25 | 2010-06-25 | Furfural production surplus heat utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201737865U true CN201737865U (en) | 2011-02-09 |
Family
ID=43553148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202379363U Expired - Lifetime CN201737865U (en) | 2010-06-25 | 2010-06-25 | Furfural production surplus heat utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201737865U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863864A (en) * | 2010-06-25 | 2010-10-20 | 宏业生化股份有限公司 | Furfuraldehyde production bootstrap system |
| CN103822456A (en) * | 2014-02-26 | 2014-05-28 | 邢台市大曹庄管理区康丰化工有限公司 | Waste heat collection device for furfural production |
-
2010
- 2010-06-25 CN CN2010202379363U patent/CN201737865U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101863864A (en) * | 2010-06-25 | 2010-10-20 | 宏业生化股份有限公司 | Furfuraldehyde production bootstrap system |
| CN103822456A (en) * | 2014-02-26 | 2014-05-28 | 邢台市大曹庄管理区康丰化工有限公司 | Waste heat collection device for furfural production |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110209 Effective date of abandoning: 20120502 |