CN108929290A - A kind of furfural dehydration device - Google Patents
A kind of furfural dehydration device Download PDFInfo
- Publication number
- CN108929290A CN108929290A CN201810911519.3A CN201810911519A CN108929290A CN 108929290 A CN108929290 A CN 108929290A CN 201810911519 A CN201810911519 A CN 201810911519A CN 108929290 A CN108929290 A CN 108929290A
- Authority
- CN
- China
- Prior art keywords
- dehydrating tower
- pipeline
- furfural
- dehydration device
- storage tank
- 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.)
- Pending
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- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 230000018044 dehydration Effects 0.000 title claims abstract description 45
- 238000006297 dehydration reaction Methods 0.000 title claims abstract description 45
- 239000011256 inorganic filler Substances 0.000 claims abstract description 43
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 43
- 150000001299 aldehydes Chemical class 0.000 claims abstract description 31
- 239000002994 raw material Substances 0.000 claims abstract description 19
- 239000000945 filler Substances 0.000 claims abstract description 13
- 230000001172 regenerating effect Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 25
- 238000001816 cooling Methods 0.000 description 8
- 238000005086 pumping Methods 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- LBPYPRXFFYUUSI-UHFFFAOYSA-N furan-2-carbaldehyde;hydrate Chemical compound O.O=CC1=CC=CO1 LBPYPRXFFYUUSI-UHFFFAOYSA-N 0.000 description 1
- -1 furfural aldehyde Chemical class 0.000 description 1
- 229910052809 inorganic oxide Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000000053 physical method Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/38—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with substituted hydrocarbon radicals attached to ring carbon atoms
- C07D307/40—Radicals substituted by oxygen atoms
- C07D307/46—Doubly bound oxygen atoms, or two oxygen atoms singly bound to the same carbon atom
- C07D307/48—Furfural
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a kind of furfural dehydration devices, furfural storage tank and dehydration device, it is characterized by: dehydration device includes taking out aldehyde pump, dehydrator and raw material storage tank, dehydrator includes dehydrating tower one and dehydrating tower two, inorganic filler layer is filled with inside dehydrating tower one and dehydrating tower two, furfural storage tank is connected by pipeline with aldehyde pump is taken out, aldehyde pump is taken out to be connected by pipeline with one lower end of dehydrating tower, the upper end of dehydrating tower one is connected by pipeline with the lower end of dehydrating tower two, the upper end of dehydrating tower two is connected by pipeline with raw material storage tank, structure of the invention is reasonable, it is easy to use, the method absorbed by the dehydration of inorganic filler physics, the reduction furfural moisture being simple and efficient, improve furfural content, the inorganic filler repeated reproducibility of dehydration is set to utilize by filler regenerating unit simultaneously, in the product matter for improving furfural It measures while effectively reducing production cost.
Description
Technical field
The present invention relates to furfural production technical fields, and in particular to a kind of furfural dehydration device.
Background technique
During furfural production, hair aldehyde purification, it is necessary first under vacuum conditions, be carried out using the difference of each component boiling point
Dehydration, the principle for recycling furfural-water to form azeotropic is further dehydrated, by continuously flowing back, to obtain qualified chaff
Aldehyde product, therefore the water content of furfural is to evaluate the important indicator of furfural grade, water content is fewer, and the higher grade of furfural, and
By existing increasing reflux ratio, extending the techniques such as purification production time can improve the water content of a reduction furfural, but this work
The loss of skill furfural can increase, and influence refining rate, and increase production cost.
Summary of the invention
The technical problem to be solved in the present invention is to provide furfurals a kind of easy to use, that dehydration efficiency is high and input cost is few
Dehydration device.
To realize above-mentioned target, the technical solution of the present invention is as follows: a kind of furfural dehydration device, including furfural storage tank and de-
Water installations, it is characterised in that: dehydration device includes that pumping aldehyde pump, dehydrator and raw material storage tank, dehydrator include one He of dehydrating tower
Inorganic filler layer is filled with inside dehydrating tower two, dehydrating tower one and dehydrating tower two, furfural storage tank pumps phase with aldehyde is taken out by pipeline
Connection takes out aldehyde pump and is connected by pipeline with one lower end of dehydrating tower, and the upper end of dehydrating tower one passes through pipeline and dehydrating tower two
Lower end be connected, the upper end of dehydrating tower two is connected by pipeline with raw material storage tank.
Further, dehydration device further includes having the second dehydrator, and the second dehydrator includes dehydrating tower three and dehydrating tower four,
It is filled with inorganic filler layer inside dehydrating tower three and dehydrating tower four, takes out aldehyde pump and is connected by pipeline with three lower end of dehydrating tower,
The upper end of dehydrating tower three is connected by pipeline with the lower end of dehydrating tower four, and the upper end of dehydrating tower four passes through pipeline and original
Material storage tank is connected.
Further, the height between furfural storage tank and ground is greater than the height between dehydration device and ground.
Further, it takes out the pipeline between the pipeline between aldehyde pump and dehydrating tower one, dehydrating tower one and dehydrating tower two, be dehydrated
Between pipeline, pumping aldehyde pump between tower two and raw material storage tank and the pipeline between dehydrating tower three, dehydrating tower three and dehydrating tower four
Pipeline, be respectively arranged with control valve on the pipeline between dehydrating tower four and raw material storage tank.
Further, inorganic filler layer is to be respectively arranged in dehydrating tower one, dehydrating tower two, dehydrating tower three and dehydrating tower four
The sieve plate of portion's upper/lower terminal and the inorganic filler being set between sieve plate.
Further, inorganic filler is made of the silica gel and active carbon that mixed proportion is 1:1.
Further, dehydration device further includes having filler regenerating unit, and filler regenerating unit includes gas source, surge tank, wind
Machine and gas heater, gas source are connected to by pipeline with surge tank item, and exhaust fan is added with surge tank and gas respectively by pipeline
Hot device is connected, gas heater by be provided with the pipeline of pipeline valve respectively with blower, the bottom of dehydrating tower one, dehydrating tower
Two bottom, the bottom of dehydrating tower three are connected with four bottom of dehydrating tower, dehydrating tower one, dehydrating tower two, dehydrating tower three and dehydration
It is respectively arranged with outlet pipe at the top of tower four, the first control valve is provided on outlet pipe.
Further, it is provided with second pipe valve on the pipeline between pipeline valve and heated gas heats device, buffers
Tank is connected by the pipeline being provided between the pipeline of third pipeline valve and pipeline valve and second pipe valve.
Structure of the invention is reasonable, easy to use, and the method absorbed by the dehydration of inorganic filler physics can effectively reduce
The moisture of furfural, corresponding to furfural aldehyde contenting amount can increase on the basis of the original, and the reduction furfural moisture that is simple and efficient mentions
High furfural content, while so that the inorganic filler repeated reproducibility of dehydration is utilized by filler regenerating unit, improving chaff
The product quality of aldehyde effectively reduces production cost simultaneously.
Detailed description of the invention
Fig. 1 the structural representation of present invention.
Drawing explanation: 1, furfural storage tank, 2, take out aldehyde pump, 3, raw material storage tank, 4, dehydrating tower one, 5, dehydrating tower two, 6,
Dehydrating tower three, 7, dehydrating tower four, 8, control valve, 9, surge tank, 10, blower, 11, gas heater, 12, pipeline valve, 13,
Two pipeline valves, 14, third pipeline valve, the 15, first control valve.
Specific embodiment
In the description of the present invention, it is to be understood that, term " longitudinal direction ", " transverse direction ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown is merely for convenience of the description present invention, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In conjunction with attached drawing, the technical schemes of the invention are described in detail, a kind of furfural dehydration device, including furfural storage tank 1 and de-
Water installations, dehydration device include that pumping aldehyde pump 2, dehydrator and raw material storage tank 3, dehydrator include dehydrating tower 1 and dehydrating tower two
5, inorganic filler layer is filled with inside dehydrating tower one and dehydrating tower two, furfural storage tank is connected by pipeline with aldehyde pump is taken out, pumping
Aldehyde pump is connected by pipeline with one lower end of dehydrating tower, and the upper end of dehydrating tower one passes through the lower end of pipeline and dehydrating tower two
It is connected, the upper end of dehydrating tower two is connected by pipeline with raw material storage tank, when needing to further decrease in furfural stoste
Moisture, when being further processed to furfural stoste, furfural stoste in furfural storage tank is pumped by taking out aldehyde and is pumped into furfural stoste
The height being greater than the height between furfural storage tank and ground between dehydration device and ground may be selected in one bottom of dehydrating tower at this time
Degree, makes furfural storage tank position integrally be higher than dehydration device, using gravitational effects, the pumping aldehyde of smaller power can be used to pump to furfural
Stoste is extracted, and when furfural stoste enters inorganic filler layer, the moisture contained in furfural stoste is passed through by inorganic filler layer
Physical method absorption, the furfural stoste after dehydrated is flowed out from the upper end of dehydrating tower one, in order to further decrease furfural
Moisture in stoste enters the bottom with the concatenated dehydrating tower two of dehydrating tower one from the furfural stoste in dehydrating tower one, and furfural is former
Liquid is using the inorganic filler layer second dehydration in dehydrating tower two, and furfural stoste after second dehydration is from the upper of dehydrating tower two
It finally flows into after the outflow of end into raw material storage tank, furfural stoste further reduced chaff by the twice dehydration of dehydrator
The content of moisture in aldehyde.
When in dehydrator inorganic filler layer using after a certain period of time water suction reach saturation, can not continue to furfural stoste into
Row dehydration, at this time in order not to stop production while again can to furfural stoste carry out uninterruptedly be dehydrated, can be dehydrated dress
Set the second dehydrator of middle installation, the second dehydrator includes dehydrating tower 36 and dehydrating tower 47, inside dehydrating tower three and dehydrating tower four
Filled with inorganic filler layer, takes out aldehyde pump and be connected by pipeline with three lower end of dehydrating tower, the upper end of dehydrating tower three passes through pipe
Road is connected with the lower end of dehydrating tower four, and the upper end of dehydrating tower four is connected by pipeline with raw material storage tank, works as dehydration
Inorganic filler layer adsorption saturation in device one can not stop the supply to the furfural stoste of dehydrator, at this time when continuing absorption
It is dehydrated in the dehydrating tower three and dehydrating tower four that furfural stoste can be each led into the second dehydrator, the chaff after final dewatering
Aldehyde enters in raw material storage tank, when the second dehydrator is dehydrated furfural stoste, can carry out to the inorganic filler layer in dehydrator
Replacement is dehydrated by the alternating of dehydrator and the second dehydrator, has achieved the purpose that furfural stoste is uninterruptedly dehydrated, inorganic filler
Layer can be to be respectively arranged at dehydrating tower one, the sieve plate of four inside upper/lower terminal of dehydrating tower two, dehydrating tower three and dehydrating tower and setting
Inorganic filler between sieve plate facilitates the replacement of filler.
During being dehydrated to furfural stoste, facilitate the direction of feed of control furfural stoste and later to the maintenance of equipment
Maintenance, and achieve the purpose that dehydrator and the second dehydrator are used alternatingly, the pipe between aldehyde pump and dehydrating tower one can taken out at this time
Pipeline, dehydrating tower two between road, dehydrating tower one and dehydrating tower two and the pipeline between raw material storage tank take out aldehyde pump and dehydrating tower
Divide on pipeline between pipeline, dehydrating tower three between three and the pipeline between dehydrating tower four, dehydrating tower four and raw material storage tank
It is not provided with control valve 8, when dehydrator can close the control valve taken out between aldehyde pump and dehydrating tower three on pipeline in the process of running,
When dehydrator two can close the control valve taken out between aldehyde pump and dehydrating tower one on pipeline in the process of running, realize dehydrator and
The purpose that second dehydrator is used alternatingly.
It is not available then, needs replacing, replacement inorganic filler will increase after inorganic filler is to furfural stoste dehydration saturation
Production cost reaches the recycling of inorganic filler to reduce production cost, can install filler additional again in dehydration device at this time
Generating apparatus, filler regenerating unit include gas source, surge tank 9, blower 10 and gas heater 11, and gas source passes through pipeline and surge tank
Item connection, exhaust fan are connected with surge tank and gas heater respectively by pipeline, and gas heater is by being provided with pipeline
The pipeline of valve 12 respectively with blower, the bottom of dehydrating tower one, the bottom of dehydrating tower two, the bottom of dehydrating tower three and dehydrating tower four
Bottom is connected, and is respectively arranged with outlet pipe, escape pipe at the top of dehydrating tower one, dehydrating tower two, dehydrating tower three and dehydrating tower four
It is provided with the first control valve 15 on road, stops working after the inorganic filler in dehydrator reaches water suction saturation, at dehydrator two
In the dehydrating operation state to furfural stoste, gas source is passed through surge tank at this time, gas source preferred property is stable, without dangerous and source
Extensive nitrogen, while opening blower, dehydrating tower one, the pipeline valve on dehydrating tower two and dehydrating tower one and the top of dehydrating tower two
First control valve of the outlet pipe in portion, the gas in surge tank are pumped into gas heater by blower, and gas heater will
It is respectively enterd in dehydrating tower one and dehydrating tower two after gas heating from pipeline valve, the high-temperature gas heated by heater is by nothing
Moisture in machine filler is heated into vapor, and the vapor after separating with inorganic filler passes through two top of dehydrating tower one and dehydrating tower
Outlet pipe in be discharged, the regeneration of inorganic filler is realized, when needing to dehydrating tower three in the second dehydrator and de-
When inorganic filler in water tower four is regenerated, the regenerated usage mode of inorganic filler in dehydrator is repeated, it is de- to second
Hydrophone is dehydrated, and inorganic filler is regenerated, and after filler natural cooling, can carry out the work being dehydrated to furfural stoste.
During cooling after filler regeneration, because high-temperature gas is cold by needing to carry out dehydrator behind dehydrator inside
But, often cooling time is longer, influences efficiency, and during cooling, in filler moisture become after vapor because the time compared with
Length can become again water adsorption in inorganic filler, and the effect for causing inorganic filler to be dehydrated absorption again is poor, at this time in pipe
Second pipe valve 13 is provided on pipeline between road valve and heated gas heats device, surge tank is by being provided with third pipe
Pipeline between the pipeline of road valve 14 and pipeline valve and second pipe valve is connected, in the cooling process of inorganic filler
In, the second pipe valve in gas heater is closed, and is stopped the gas of conveying heating, and open third pipeline valve, is made to delay
It rushes the gas at normal temperature in tank to be directly blown into dehydrator or the second dehydrator, by gas at normal temperature respectively to dehydrating tower one, de-
Water tower two, dehydrating tower three and dehydrating tower four brush, and accelerate the cooling of inorganic filler, reduce the cooling of inorganic filler
Time, the cooling efficiency of inorganic filler is improved, while improving the reproduction quality of inorganic filler.
Because of inorganic oxide substance of the furfural stoste in entering dehydrator or the second dehydrator dehydration, in inorganic filler
Chemically reacted with furfural stoste, furfural caused to darken, influence the quality of furfural, in order to avoid or reduce because of oxide
Darken caused by being chemically reacted with furfural, thus inorganic filler may be selected by mixed proportion be 1:1 silica gel and
The inorganic filler of active carbon composition makes furfural color not change.
Basic principle of the invention, main feature and advantage has been shown and described above, do not depart from spirit of that invention and
Under the premise of range, there are also various changes and modifications, these changes and improvements to both fall within claimed invention by the present invention
Range.
Claims (8)
1. a kind of furfural dehydration device, including furfural storage tank and dehydration device, it is characterised in that: dehydration device includes taking out aldehyde
Pump, dehydrator and raw material storage tank, dehydrator include dehydrating tower one and dehydrating tower two, are filled inside dehydrating tower one and dehydrating tower two
There is inorganic filler layer, furfural storage tank is connected by pipeline with aldehyde pump is taken out, and is taken out aldehyde pump and is passed through pipeline and one lower end of dehydrating tower
It is connected, the upper end of dehydrating tower one is connected by pipeline with the lower end of dehydrating tower two, and the upper end of dehydrating tower two passes through
Pipeline is connected with raw material storage tank.
2. a kind of furfural dehydration device according to claim 1, it is characterised in that: dehydration device further includes having the second dehydration
Device, the second dehydrator include dehydrating tower three and dehydrating tower four, are filled with inorganic filler layer inside dehydrating tower three and dehydrating tower four, take out
Aldehyde pump is connected by pipeline with three lower end of dehydrating tower, and the upper end of dehydrating tower three passes through the lower end of pipeline and dehydrating tower four
It is connected, the upper end of dehydrating tower four is connected by pipeline with raw material storage tank.
3. a kind of furfural dehydration device according to claim 1 or 2, it is characterised in that: between furfural storage tank and ground
Height be greater than height between dehydration device and ground.
4. a kind of furfural dehydration device according to claim 2, it is characterised in that: take out the pipe between aldehyde pump and dehydrating tower one
Pipeline, dehydrating tower two between road, dehydrating tower one and dehydrating tower two and the pipeline between raw material storage tank take out aldehyde pump and dehydrating tower
Divide on pipeline between pipeline, dehydrating tower three between three and the pipeline between dehydrating tower four, dehydrating tower four and raw material storage tank
Control valve is not provided with it.
5. a kind of furfural dehydration device according to claim 2, it is characterised in that: inorganic filler layer is de- to be respectively arranged at
Water tower one, four inside upper/lower terminal of dehydrating tower two, dehydrating tower three and dehydrating tower sieve plate and be set between sieve plate inorganic fill out
Material.
6. a kind of furfural dehydration device according to claim 5, it is characterised in that: inorganic filler is 1:1 by mixed proportion
Silica gel and active carbon composition.
7. a kind of furfural dehydration device according to claim 2, it is characterised in that: dehydration device further includes having filler regeneration
Device, filler regenerating unit include gas source, surge tank, blower and gas heater, and gas source is connected to by pipeline with surge tank item,
Exhaust fan is connected with surge tank and gas heater respectively by pipeline, and gas heater is by being provided with the pipe of pipeline valve
Road is connected with blower, the bottom of dehydrating tower one, the bottom of dehydrating tower two, the bottom of dehydrating tower three and four bottom of dehydrating tower respectively
It is logical, it is respectively arranged with outlet pipe at the top of dehydrating tower one, dehydrating tower two, dehydrating tower three and dehydrating tower four, is arranged on outlet pipe
There is the first control valve.
8. a kind of furfural dehydration device according to claim 2, it is characterised in that: pipeline valve and heated gas heats device
Between pipeline on be provided with second pipe valve, surge tank by be provided with third pipeline valve pipeline and pipeline valve and
Pipeline between second pipe valve is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810911519.3A CN108929290A (en) | 2018-08-12 | 2018-08-12 | A kind of furfural dehydration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810911519.3A CN108929290A (en) | 2018-08-12 | 2018-08-12 | A kind of furfural dehydration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108929290A true CN108929290A (en) | 2018-12-04 |
Family
ID=64445894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810911519.3A Pending CN108929290A (en) | 2018-08-12 | 2018-08-12 | A kind of furfural dehydration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108929290A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202030684U (en) * | 2011-03-23 | 2011-11-09 | 昌图县糠醛厂 | Continuous refining device for furfural |
| CN104128015A (en) * | 2014-08-19 | 2014-11-05 | 衡水中科信能源有限公司 | Furfural continuous rectification device and process |
| CN204307379U (en) * | 2014-12-04 | 2015-05-06 | 子洲县元嘉糠醛生产销售有限公司 | A kind of furfuryl alcohol dewater unit |
| CN105461669A (en) * | 2015-12-28 | 2016-04-06 | 山西恒宇生物科技有限公司 | Dehydration and deacidification device for refining furfural and refining process |
-
2018
- 2018-08-12 CN CN201810911519.3A patent/CN108929290A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202030684U (en) * | 2011-03-23 | 2011-11-09 | 昌图县糠醛厂 | Continuous refining device for furfural |
| CN104128015A (en) * | 2014-08-19 | 2014-11-05 | 衡水中科信能源有限公司 | Furfural continuous rectification device and process |
| CN204307379U (en) * | 2014-12-04 | 2015-05-06 | 子洲县元嘉糠醛生产销售有限公司 | A kind of furfuryl alcohol dewater unit |
| CN105461669A (en) * | 2015-12-28 | 2016-04-06 | 山西恒宇生物科技有限公司 | Dehydration and deacidification device for refining furfural and refining process |
Non-Patent Citations (1)
| Title |
|---|
| 刘迎新 等: "果糖脱水制备5-羟甲基糠醛及分离纯化" * |
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Application publication date: 20181204 |