CN201737866U - Furfuraldehyde production afterheat utilization system - Google Patents
Furfuraldehyde production afterheat utilization system Download PDFInfo
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- CN201737866U CN201737866U CN2010202379414U CN201020237941U CN201737866U CN 201737866 U CN201737866 U CN 201737866U CN 2010202379414 U CN2010202379414 U CN 2010202379414U CN 201020237941 U CN201020237941 U CN 201020237941U CN 201737866 U CN201737866 U CN 201737866U
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- furfural
- furfuraldehyde
- tower
- pure water
- steam inlet
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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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Abstract
The utility model belongs to the technical field of afterheat utilization, and relates to a furfuraldehyde production afterheat utilization system in particular which includes a hydrolyzing kettle and a furfuraldehyde primary tower; a pure water evaporator and a sodium percarbonate mother liquid evaporator are arranged between the hydrolyzing kettle and the furfuraldehyde primary tower; the furfuraldehyde gas outlet of the hydrolyzing kettle is connected with the steam inlet of the pure water evaporator and the steam inlet of the sodium percarbonate mother liquid evaporator; and the steam outlet of the pure water evaporator is connected with the steam inlet of the reboiler of the furfuraldehyde primary tower, a furfuraldehyde rectifying tower or a furfuraldehyde dehydrating tower. The furfuraldehyde production afterheat utilization system uses the furfuraldehyde gas to heat the pure water firstly and then converts the pure water into steam which is used as the hot source of the furfuraldehyde primary tower, the furfuraldehyde rectifying tower or /and the furfuraldehyde dehydrating tower. Meanwhile, the furfuraldehyde gas supplies heat to the evaporation concentration of the sodium percarbonate mother liquid to sufficiently convert the heat carried by the furfuraldehyde gas into a hot source needed by other equipment to realize the purposes of utilizing energies in a stepped way, effectively and sufficiently using the afterheat of the furfuraldehyde gas generated in a furfuraldehyde hydrolyzing system, greatly saving energies and reducing consumption, and reducing emission and increasing efficiency.
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 required steam of primary tower, dehydration tower, rectifying tower, SPC-D mother liquid evaporation device and thiourea peroxide mother liquid evaporation device 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 evaporating pure water device and SPC-D mother liquid evaporation device between described hydrolysis kettle and the furfural primary tower, the aldehyde vapor outlet of hydrolysis kettle is connected with the steam inlet of the steam inlet of evaporating pure water device with SPC-D mother liquid evaporation 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.
The vapour outlet of described SPC-D mother liquid evaporation device is connected with the steam inlet of thiourea peroxide mother liquid evaporation device.
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, the aldehyde vapour condensate outlet of SPC-D mother liquid evaporation device are 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.
Furfural of the present utility model is produced bootstrap system and is made the thermal source of aldehyde vapour as evaporating pure water device and SPC-D mother liquid evaporation device, aldehyde vapour is heated as water vapor with pure water, concentrate for simultaneously the SPC-D mother liquid evaporation heat is provided, water vapor is supplied with furfural primary tower, furfural rectifying tower or furfural dehydration tower as heat, aldehyde vapour enters the distillation of furfural primary tower through evaporating pure water device and the cooled aldehyde liquid of SPC-D mother liquid evaporation device, through the dehydration of furfural dehydration tower, finally enter the distillation of furfural rectifying tower and be the finished product furfural then; The aldehyde vapour that feeds SPC-D mother liquid evaporation device concentrates the SPC-D mother liquid evaporation, and the secondary steam that evaporation concentration produces continues on for the evaporation concentration of thiourea peroxide mother liquor.
The utility model aldehyde vapour heating evaporating pure water device earlier makes water wherein be converted into water vapor, water vapor is as the furfural primary tower, the furfural rectifying tower is or/and the thermal source of furfural dehydration tower, aldehyde vapour concentrates for simultaneously the SPC-D mother liquid evaporation heat is provided, the secondary steam that the SPC-D mother liquid evaporation produces is used for the evaporation concentration of thiourea peroxide mother liquor, furfural finishing apparatus furfural primary tower, the heat that furfural rectifying tower or furfural dehydration tower use is the entrained heat of aldehyde vapour after the hydrolysis, the heat that aldehyde vapour is carried fully is converted into the required thermal source of other equipment, realize stepped Btu utilization, 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 and SPC-D mother liquid evaporation device 7 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 71 of the steam inlet 21 of evaporating pure water device 2 with SPC-D mother liquid evaporation device 7; The vapour outlet 22 of evaporating pure water device 2 is connected with the steam inlet of the reboiler 41 of the reboiler 51 of the reboiler 31 of furfural primary tower 3, furfural rectifying tower 5 and furfural dehydration tower 4 simultaneously, the aldehyde vapour condensate outlet 23 of evaporating pure water device 2, the aldehyde vapour condensate outlet 73 of SPC-D mother liquid evaporation device 7 are 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 vapour outlet 72 of SPC-D mother liquid evaporation device 7 is connected with the steam inlet 61 of thiourea peroxide mother liquid evaporation device 6.
The aldehyde vapour that hydrolysis kettle 1 produces is as the thermal source of evaporating pure water device 2 and SPC-D mother liquid evaporation device 7, 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, the aldehyde vapour condensate outlet 73 of SPC-D mother liquid evaporation device 7 enters 3 distillations of furfural primary tower, through 4 dehydrations of furfural dehydration tower, finally enter 5 distillations of furfural rectifying tower and be the finished product furfural then; The aldehyde vapour that feeds SPC-D mother liquid evaporation device 7 concentrates the SPC-D mother liquid evaporation, the SPC-D mother liquid evaporation concentrates the secondary steam continuation feeding thiourea peroxide mother liquid evaporation device 6 that produces and is used for the evaporation concentration of thiourea peroxide mother liquor, thereby the heat of aldehyde vapour is fully used.
Claims (7)
1. furfural is produced bootstrap system, comprise hydrolysis kettle and furfural primary tower, it is characterized in that: be provided with evaporating pure water device and SPC-D mother liquid evaporation device between described hydrolysis kettle and the furfural primary tower, the aldehyde vapor outlet of hydrolysis kettle is connected with the steam inlet of the steam inlet of evaporating pure water device with SPC-D mother liquid evaporation 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, and it is characterized in that: the vapour outlet of described SPC-D mother liquid evaporation device is connected with the steam inlet of thiourea peroxide mother liquid evaporation device.
3. furfural as claimed in claim 1 or 2 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.
4. furfural as claimed in claim 1 or 2 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.
5. furfural as claimed in claim 1 or 2 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.
6. furfural as claimed in claim 1 or 2 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.
7. furfural as claimed in claim 6 is produced bootstrap system, it is characterized in that: the aldehyde vapour condensate outlet of described evaporating pure water device, the aldehyde vapour condensate outlet of SPC-D mother liquid evaporation device are 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 |
|---|---|---|---|
| CN2010202379414U CN201737866U (en) | 2010-06-25 | 2010-06-25 | Furfuraldehyde production afterheat utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202379414U CN201737866U (en) | 2010-06-25 | 2010-06-25 | Furfuraldehyde production afterheat utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201737866U true CN201737866U (en) | 2011-02-09 |
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ID=43553149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202379414U Expired - Lifetime CN201737866U (en) | 2010-06-25 | 2010-06-25 | Furfuraldehyde production afterheat utilization system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201737866U (en) |
Cited By (3)
| 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 |
| CN102675265A (en) * | 2012-05-31 | 2012-09-19 | 天津大学 | Method of refining furfural through six-tower continuous rectification |
| CN103193670A (en) * | 2013-04-02 | 2013-07-10 | 浙江金科日化原料有限公司 | System for recovering heat generated in production of tetraacetylethylenediamine |
-
2010
- 2010-06-25 CN CN2010202379414U patent/CN201737866U/en not_active Expired - Lifetime
Cited By (5)
| 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 |
| CN102675265A (en) * | 2012-05-31 | 2012-09-19 | 天津大学 | Method of refining furfural through six-tower continuous rectification |
| CN102675265B (en) * | 2012-05-31 | 2014-09-17 | 天津大学 | Method of refining furfural through six-tower continuous rectification |
| CN103193670A (en) * | 2013-04-02 | 2013-07-10 | 浙江金科日化原料有限公司 | System for recovering heat generated in production of tetraacetylethylenediamine |
| CN103193670B (en) * | 2013-04-02 | 2015-01-07 | 浙江金科日化原料有限公司 | System for recovering heat generated in production of tetraacetylethylenediamine |
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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: 20120418 |
|
| RGAV | Abandon patent right to avoid regrant |