CN218710526U - System for triple processing furfural residue - Google Patents
System for triple processing furfural residue Download PDFInfo
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- CN218710526U CN218710526U CN202222843468.XU CN202222843468U CN218710526U CN 218710526 U CN218710526 U CN 218710526U CN 202222843468 U CN202222843468 U CN 202222843468U CN 218710526 U CN218710526 U CN 218710526U
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- CN
- China
- Prior art keywords
- furfural
- intercommunication
- lignin
- black liquor
- discharge gate
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- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical group O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 238000006243 chemical reaction Methods 0.000 claims abstract description 40
- 229920005610 lignin Polymers 0.000 claims abstract description 34
- 229920002678 cellulose Polymers 0.000 claims abstract description 22
- 239000001913 cellulose Substances 0.000 claims abstract description 22
- 230000018044 dehydration Effects 0.000 claims abstract description 14
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 14
- 239000013049 sediment Substances 0.000 claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 14
- 239000010935 stainless steel Substances 0.000 claims abstract description 14
- 239000007787 solid Substances 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 239000003814 drug Substances 0.000 claims abstract description 4
- 230000015556 catabolic process Effects 0.000 claims abstract description 3
- 238000006731 degradation reaction Methods 0.000 claims abstract description 3
- 238000001291 vacuum drying Methods 0.000 claims description 8
- 238000010041 electrostatic spinning Methods 0.000 claims description 7
- 238000002844 melting Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 5
- 239000003153 chemical reaction reagent Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 150000007524 organic acids Chemical class 0.000 claims description 4
- 239000007800 oxidant agent Substances 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000001590 oxidative effect Effects 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims 1
- 239000002699 waste material Substances 0.000 abstract description 14
- 239000000243 solution Substances 0.000 description 11
- 150000002972 pentoses Chemical class 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229920002488 Hemicellulose Polymers 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000003377 acid catalyst Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001523 electrospinning Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000007327 hydrogenolysis reaction Methods 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920002959 polymer blend Polymers 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N sulfuric acid Substances OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
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- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
The utility model relates to a triple system of handling furfural sediment belongs to furfural sediment and handles technical field. The transport end-to-end connection high pressure batch autoclave I's of furfural sediment belt conveyor feed inlet, high pressure batch autoclave I's export intercommunication continuous dehydration formula extruder, the liquid discharge gate intercommunication black liquor filter of continuous dehydration formula extruder, the solid discharge gate of continuous dehydration formula extruder passes through cellulose band conveyer intercommunication high pressure batch autoclave II, the liquid discharge gate intercommunication evaporimeter of black liquor filter, evaporimeter intercommunication high pressure batch autoclave III, the solid discharge gate intercommunication stainless steel enzymolysis tank of black liquor filter, stainless steel enzymolysis tank intercommunication batch reactor, be provided with on the batch reactor and be used for adding the pencil in the batch reactor in proper order with the medicament that carries out three steps of reactions to lignin after the degradation. The utility model discloses a large amount of cellulose, lignin are drawed out and are carried out the conversion utilization in the furfural sediment, have reduced the waste of resource, have avoided the pollution of environment.
Description
Technical Field
The utility model belongs to the technical field of furfural residue handles, specific theory relates to a triple system of handling furfural residue.
Background
During furfural production, hemicellulose in biomass is firstly hydrolyzed into pentose, and the pentose is dehydrated to generate furfural, so that only the hemicellulose in the biomass is utilized, cellulose and lignin with more abundant contents are not effectively utilized, resource waste is caused, and a large amount of acid-containing waste residues are generated to pollute the environment.
Therefore, a system for triple treatment of the furfural residues is needed to be provided, a large amount of cellulose and lignin in the furfural residues are extracted for conversion and utilization, the waste of resources is reduced, the generation of acid-containing waste residues is avoided, and the environmental pollution is avoided.
SUMMERY OF THE UTILITY MODEL
Cellulose, lignin in the furfural sediment that exist in order to overcome the background art do not by effective utilization, have caused the wasting of resources, have still produced a large amount of problems that contain the acid waste residue polluted the environment simultaneously, the utility model provides a system of triple processing furfural sediment draws out a large amount of cellulose, lignin in the furfural sediment and carries out the conversion utilization, has reduced the waste of resource, has stopped the production that contains the acid waste residue, has avoided the pollution of environment.
In order to achieve the above purpose, the utility model is realized by the following technical scheme:
the utility model provides a system for triple processing furfural residue, which comprises a furfural residue belt conveyor 1, a high-pressure reaction kettle I2, a continuous dehydration type extruder 3, a black liquor filter 4, a cellulose belt conveyor 5, a high-pressure reaction kettle II 6, an evaporator 7, a high-pressure reaction kettle III 8, a stainless steel enzymolysis tank 9 and an intermittent kettle type reactor 10; the conveying end of the furfural residue belt conveyor 1 is connected with a feed inlet of a high-pressure reaction kettle I2, an outlet of the high-pressure reaction kettle I2 is communicated with a continuous dewatering type extruder 3, a liquid discharge port of the continuous dewatering type extruder 3 is communicated with a black liquor filter 4, a solid discharge port of the continuous dewatering type extruder 3 is communicated with a high-pressure reaction kettle II 6 through a cellulose belt conveyor 5, a liquid discharge port of the black liquor filter 4 is communicated with an evaporator 7, the evaporator 7 is communicated with a high-pressure reaction kettle III 8, the solid discharge port of the black liquor filter 4 is communicated with a stainless steel enzymolysis tank 9, the stainless steel enzymolysis tank 9 is communicated with an intermittent kettle reactor 10, and a chemical adding pipe 11 used for sequentially adding a chemical for carrying out three-step reaction on degraded lignin into the intermittent kettle reactor 10 is arranged on the intermittent kettle reactor 10.
Preferably, the evaporator 7 is an external heating evaporator.
Preferably, the agent for performing the three-step reaction on the degraded lignin sequentially comprises an alkaline reagent, an oxidizing agent and an organic acid.
Preferably, the system for triple processing of furfural residue further comprises a vacuum drying oven 12 for drying pretreated lignin, a resonant acoustic mixer 13 for mixing lignin and a melt electrostatic spinning machine 14 for melting the mixture, wherein the vacuum drying oven 12, the resonant acoustic mixer 13 and the melt electrostatic spinning machine 14 are sequentially arranged behind the batch still reactor 10.
Preferably, polyacrylonitrile is placed in the resonance acoustic mixer 13.
The utility model has the advantages that:
the utility model discloses cellulose, lignin that do not obtain the utilization in the furfural sediment resolve out to the at utmost to change into high value product, a small amount of hemicellulose obtains furfural through low energy consumption mode preparation again, closed loop's high-efficient mode of utilization has been realized, realize the resource cyclic utilization of furfural sediment "changing waste into valuables", a large amount of cellulose in with the furfural sediment, lignin draw out and carry out the conversion utilization, the waste of resource has been reduced, the production that contains the acid waste residue has been stopped, the pollution of environment has been avoided.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a process flow chart of the lignin after the treatment according to the present invention.
In the figure, a 1-furfural residue belt conveyor, a 2-high-pressure reaction kettle I, a 3-continuous dehydration type extruder, a 4-black liquor filter, a 5-cellulose belt conveyor, a 6-high-pressure reaction kettle II, a 7-evaporator, a 8-high-pressure reaction kettle III, a 9-stainless steel enzymolysis tank, a 10-batch kettle type reactor, an 11-chemical feeding pipe, a 12-vacuum drying box, a 13-resonance acoustic mixer and a 14-melting electrostatic spinning machine are arranged.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail a preferred embodiment of the present invention with reference to the accompanying drawings to facilitate understanding of the skilled person.
As shown in the figure 1-2, the system for triple treatment of furfural residues comprises a furfural residue belt conveyor 1, a high-pressure reaction kettle I2, a continuous dehydration type extruder 3, a black liquor filter 4, a cellulose belt conveyor 5, a high-pressure reaction kettle II 6, an evaporator 7, a high-pressure reaction kettle III 8, a stainless steel enzymolysis tank 9 and a batch reactor 10.
The conveying end of the furfural residue belt conveyor 1 is connected with a feed inlet of a high-pressure reaction kettle I2, furfural residues are conveyed into the high-pressure reaction kettle I2 through the furfural residue belt conveyor 1, an outlet of the high-pressure reaction kettle I2 is communicated with a continuous dewatering type extruder 3, a liquid discharge port of the continuous dewatering type extruder 3 is communicated with a black liquor filter 4, a solid discharge port of the continuous dewatering type extruder 3 is communicated with a high-pressure reaction kettle II 6 through a cellulose belt conveyor 5, black liquor separated out by the continuous dewatering type extruder 3 enters the black liquor filter 4, solid cellulose obtained at a discharge port of the continuous dewatering type extruder 3 is added into the high-pressure reaction kettle II 6 through the cellulose belt conveyor 5.
The liquid discharge port of the black liquor filter 4 is communicated with an evaporator 7, the evaporator 7 is an external heating evaporator and is communicated with a high-pressure reaction kettle III 8, a pentose solution obtained by filtering of the black liquor filter 4 is used for further dehydration to prepare furfural, the pentose solution enters the evaporator 7 through a pipeline, the solution enters the high-pressure reaction kettle III 8 through a pipeline after the concentration of the solution reaches 0.5-15%, the solid discharge port of the black liquor filter 4 is communicated with a stainless steel enzymolysis tank 9, the stainless steel enzymolysis tank 9 obtained by the black liquor filter 4 is communicated with an intermittent kettle type reactor 10, lignin is added into the stainless steel enzymolysis tank 9, the lignin enters the intermittent kettle type reactor 10 after degradation to carry out three-step reaction, a chemical adding pipe 11 for sequentially adding chemicals for three-step reaction on the degraded lignin into the intermittent kettle type reactor 10 is arranged on the intermittent kettle type reactor 10, and the chemicals for three-step reaction on the degraded lignin are sequentially alkaline reagents, oxidizing agents and organic acids, so that structural units in the lignin are arranged orderly.
The system for triple processing of the furfural residues further comprises a vacuum drying box 12 for drying the pretreated lignin, a resonance acoustic mixer 13 for mixing the lignin and a melting electrostatic spinning machine 14 for melting the mixture, wherein the vacuum drying box 12, the resonance acoustic mixer 13 and the melting electrostatic spinning machine 14 are sequentially arranged behind the batch still reactor 10, and polyacrylonitrile is placed in the resonance acoustic mixer 13.
The utility model discloses a working process:
firstly, putting ground and screened furfural residues into a furfural residue belt conveyor 1, adding the furfural residues through an inlet at the upper end of a reactant in a high-pressure reaction kettle I2, adding an ethanol solution for mixing, conveying the generated solid cellulose and black liquor to a continuous dewatering type extruder 3 through an outlet at the upper right part for separation, feeding the separated black liquor into a black liquor filter 4, adding concentrated sulfuric acid to precipitate lignin, and filtering to obtain pentose solution and solid lignin.
Then, adding the solid cellulose obtained at the discharge port of the continuous dehydration type extruder 3 into a high-pressure reaction kettle II 6 through a cellulose belt conveyor 5, adding a Pt/WOx/Al2O3 catalyst, and obtaining an organic solvent ethanol through catalysis-hydrogenolysis; pentose solution obtained by filtering with a black liquor filter 4 is used for further dehydration to prepare furfural, the pentose solution enters an evaporator 7 through a pipeline, the solution enters a high-pressure reaction kettle III 8 through a pipeline after the concentration of the solution reaches 0.5-15%, and a composite acid catalyst is added for dehydration to form furfural stock solution.
And finally, preprocessing the lignin, adding the lignin into a stainless steel enzymolysis tank 9, degrading the lignin, then entering an intermittent kettle type reactor 10 to carry out three-step reaction, and sequentially adding an alkaline reagent, an oxidant and organic acid through a medicine adding port 11 respectively to ensure that the structural units in the lignin are regularly and orderly arranged. The treated lignin is placed in a vacuum drying oven 12, the dried lignin is placed in a resonant acoustic mixer 13 to mix with Polyacrylonitrile (PAN), and finally the resulting mixture is added to a melt electrospinning machine 14, the temperature of the polymer mixture is increased until they melt to be flowable, and then the polymer melt is rotated until fibers are formed.
The utility model discloses cellulose, lignin that do not obtain the utilization in the furfural sediment resolve out to the at utmost to change into high value product, a small amount of hemicellulose obtains furfural through low energy consumption mode preparation again, closed loop's high-efficient mode of utilization has been realized, realize the resource cyclic utilization of furfural sediment "changing waste into valuables", a large amount of cellulose in with the furfural sediment, lignin draw out and carry out the conversion utilization, the waste of resource has been reduced, the production that contains the acid waste residue has been stopped, the pollution of environment has been avoided.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (5)
1. A system for triple processing of furfural residues is characterized in that: the system for triple treatment of the furfural residues comprises a furfural residue belt conveyor (1), a high-pressure reaction kettle I (2), a continuous dehydration type extruder (3), a black liquor filter (4), a cellulose belt conveyor (5), a high-pressure reaction kettle II (6), an evaporator (7), a high-pressure reaction kettle III (8), a stainless steel enzymolysis tank (9) and an intermittent kettle type reactor (10); the feed inlet of transport end-to-end connection high pressure batch autoclave I (2) of furfural sediment band conveyer (1), the export intercommunication continuous dehydration formula extruder (3) of high pressure batch autoclave I (2), the liquid discharge gate intercommunication black liquor filter (4) of continuous dehydration formula extruder (3), the solid discharge gate of continuous dehydration formula extruder (3) passes through cellulose band conveyer (5) intercommunication high pressure batch autoclave II (6), the liquid discharge gate intercommunication evaporimeter (7) of black liquor filter (4), evaporimeter (7) intercommunication high pressure batch autoclave III (8), the solid discharge gate intercommunication stainless steel enzymolysis tank (9) of black liquor filter (4), stainless steel enzymolysis tank (9) intercommunication batch reactor (10), be provided with on batch reactor (10) and be used for adding medicine tube (11) in batch reactor (10) in proper order with the medicament that will carry out three steps of reaction to lignin after the degradation.
2. A system for triple processing of furfural residue according to claim 1 characterized in that: the evaporator (7) adopts an external heating type evaporator.
3. The system for triple processing of furfural slag according to claim 1 or 2, characterized in that: the agents for carrying out three-step reaction on the degraded lignin sequentially comprise an alkaline reagent, an oxidant and organic acid.
4. A system for triple processing of furfural residue according to claim 1 or 2 characterized in that: the system for triple processing of the furfural residues further comprises a vacuum drying box (12) for drying the pretreated lignin, a resonance acoustic mixer (13) for mixing the lignin and a melt electrostatic spinning machine (14) for melting the mixture, wherein the vacuum drying box (12), the resonance acoustic mixer (13) and the melt electrostatic spinning machine (14) are sequentially arranged behind the batch still reactor (10).
5. A system for triple processing of furfural residue according to claim 4, characterized in that: polyacrylonitrile is placed in the resonance sound mixer (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222843468.XU CN218710526U (en) | 2022-10-27 | 2022-10-27 | System for triple processing furfural residue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222843468.XU CN218710526U (en) | 2022-10-27 | 2022-10-27 | System for triple processing furfural residue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218710526U true CN218710526U (en) | 2023-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222843468.XU Active CN218710526U (en) | 2022-10-27 | 2022-10-27 | System for triple processing furfural residue |
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- 2022-10-27 CN CN202222843468.XU patent/CN218710526U/en active Active
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