CN205398516U - Living beings are hydrolysised and are prepared device of acetylpropionic acid and furfural - Google Patents
Living beings are hydrolysised and are prepared device of acetylpropionic acid and furfural Download PDFInfo
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- CN205398516U CN205398516U CN201620142135.6U CN201620142135U CN205398516U CN 205398516 U CN205398516 U CN 205398516U CN 201620142135 U CN201620142135 U CN 201620142135U CN 205398516 U CN205398516 U CN 205398516U
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- hydrolysis reactor
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- furfural
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Abstract
The utility model provides a living beings are hydrolysised and are prepared device of acetylpropionic acid and furfural, includes at least three hydrolysis reactor, and every hydrolysis reactor upper portion is equipped with feed inlet, catalyst inlet and gas outlet, and the bottom is equipped with the waste residue and exports and the air inlet, catalyst inlet is connected with catalyst storage tank, is connected with first gaseous phase pipeline and second gaseous phase pipeline on the pipeline of gas outlet, is connected with first steam pipework and second steam pipework on the pipeline of air inlet, and the exit end of first gaseous phase pipeline has connected gradually first heat exchanger and low pressure steam buffer tank, and the gas outlet and the second steam pipework intercommunication on low pressure steam buffer tank upper portion are equipped with the valve on first gaseous phase pipeline, second gaseous phase pipeline, first steam pipework and the second steam pipework. The utility model discloses set up a plurality of hydrolysis reactor for hydrolysis reactor can alternate use in the living beings hydrolytic process, two hydrolysis reactor work, and all the other hydrolysis reactor can do reinforced the preparation, have realized the continuity of living beings hydrolytic processes.
Description
Technical field
This utility model belongs to the technical field of chemical industry of biomass, is specifically related to a kind of biomass by hydrolyzation and prepares the device of levulic acid and furfural.
Background technology
Levulic acid (LevulinicAcid, LA), having another name called 4-oxy pentanoic acid, LA or LA, its outward appearance is white plates or acicular crystal, the organic solvents such as soluble in water, ethanol, ether, but insoluble in gasoline, kerosene, Oleum Terebinthinae, carbon tetrachloride etc..This product is inflammable, low toxicity, have hygroscopicity, does not release carbon dioxide, distill and decompose hardly under normal pressure during heating.Owing to levulic acid molecular structure containing carbonyl, carboxyl, the polyfunctional group such as methyl and methylene, both there is the character of carboxylic acid, there is again the character of ketone, there is good chemical reactivity, can be esterified, replace, condensation and neutralization reaction etc., the products such as resin, medicine, pesticide, spice, solvent, coating and ink, rubber and plastic additive, lube oil additive, surfactant can be produced by levulic acid.
Levulic acid can obtain after generating monosaccharide further dehydration and piptonychia acid from cellulose hydrolysis, and cellulose is widely present in the biomass resource of nature, and therefore, how utilizing biomass resource to produce levulic acid becomes study hotspot.
Utility model content
This utility model purpose is in that the device providing a kind of biomass by hydrolyzation to prepare levulic acid and furfural.
Based on object above, this utility model takes techniques below scheme:
A kind of biomass by hydrolyzation prepares the device of levulic acid and furfural, including at least three hydrolysis reactor, each hydrolysis reactor top is provided with charging aperture, catalyst inlet and gas outlet, bottom is provided with waste residue outlet and air inlet, described catalyst inlet is connected to catalyst storage tank, the pipeline of gas outlet is connected to the first gas phase pipeline and the second gas phase pipeline, the pipeline of air inlet is connected to the first steam pipework and the second steam pipework, the port of export of described first gas phase pipeline is connected with First Heat Exchanger and low-pressure steam surge tank in turn, the gas outlet on described low-pressure steam surge tank top connects with the second steam pipework, described first gas phase pipeline, second gas phase pipeline, first steam pipework and the second steam pipework are provided with valve.
Further, the port of export of described second gas phase pipeline is connected with the second heat exchanger in turn and is provided with the acid-base neutralization tank of discharging opening, and acid-base neutralization tank is also associated with alkali liquor storage tank.
Further, the discharging opening of described acid-base neutralization tank is connected to purification separation device.
Further, described catalyst storage tank is positioned at the lower section of hydrolysis reactor, and the pipeline between catalyst storage tank and catalyst inlet is provided with feed pump.
Further, described valve is stop valve.
Further, described hydrolysis reactor has 3 or 4.
Compared with prior art, this utility model has the advantages that
1) this utility model is by arranging multiple hydrolysis reactor so that in biomass water solution preocess, hydrolysis reactor can be used alternatingly, and two hydrolysis reactor work, all the other hydrolysis reactors can do reinforced preparation, it is achieved that the seriality of biomass water solution preocess；
2) connected with the second steam pipework on other hydrolysis reactor with low-pressure steam surge tank by the first gas phase pipeline, First Heat Exchanger between hydrolysis reactor, it is achieved production of can connecting between hydrolysis reactor；The steam of the temperature and pressure required for providing for other hydrolysis reactor after passing through heat exchange, blood pressure lowering by the gas phase of the first gas phase pipeline, resource can be able to fully effectively utilization.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
nullA kind of biomass by hydrolyzation prepares the device of levulic acid and furfural，As shown in Figure 1，Including 3 hydrolysis reactors (or 4 hydrolysis reactors，Two hydrolysis reactor work，One hydrolysis reactor does reinforced preparation，Another is standby)，Each hydrolysis reactor top is provided with charging aperture 1、Catalyst inlet 2 and gas outlet 3，Bottom is provided with waste residue outlet 4 and air inlet 5，Described catalyst inlet 2 is connected to the catalyst storage tank 6 of the lower section being positioned at hydrolysis reactor，Pipeline between catalyst storage tank 6 and catalyst inlet 2 is provided with feed pump 7，The pipeline of gas outlet 3 is connected to the first gas phase pipeline 8-1 and the second gas phase pipeline 8-2，The port of export of the second gas phase pipeline 8-2 is connected with the second heat exchanger 9-2 in turn and is provided with the acid-base neutralization tank 10 of discharging opening，The discharging opening of acid-base neutralization tank 10 is connected to purification separation device 11，Acid-base neutralization tank 10 is also associated with alkali liquor storage tank 16，The pipeline of air inlet 5 is connected to the first steam pipework 12-1 and the second steam pipework 12-2，The port of export of described first gas phase pipeline 8-1 is connected with First Heat Exchanger 9-1 and low-pressure steam surge tank 13 in turn，The gas outlet on described low-pressure steam surge tank 13 top connects with the second steam pipework 12-2，Described first gas phase pipeline 8-1、Second gas phase pipeline 8-2、First steam pipework 12-1 and the second steam pipework 12-2 is provided with stop valve 14.
nullWork process: as shown in Figure 1，First hydrolysis reactor 15-1、Three hydrolysis reactor 15-3 of second hydrolysis reactor 15-2 and the fill the straw biomass after pulverizing simultaneously，Filling catalyst in first hydrolysis reactor 15-1，Catalyst is concentration is the dilute sulfuric acid of 3%，Close the stop valve 14 of the first steam pipework 12-1 of first hydrolysis reactor 15-1，Passing into temperature by the second steam pipework 12-2 is 170～180 DEG C、Pressure is the water vapour of 0.6～1.0MPa，The hemicellulose in biomass in first hydrolysis reactor 15-1 is hydrolyzed，When biomass reach 170～180 DEG C with catalyst feed temperature，Open the stop valve 14 on the second gas phase pipeline 8-2，After the furfural generated is entered the second heat exchanger 9-2 heat exchange cooling by steam by the second gas phase pipeline 8-2，Enter acid-base neutralization tank 10，Response time is 2h；nullIt is then shut off the stop valve 14 on the second steam pipework 12-2 and the second gas phase pipeline 8-2 of first hydrolysis reactor 15-1，Open the stop valve 14 on the first steam pipework 12-1，Passing into temperature is 210～230 DEG C、Pressure is the water vapour (high steam) of 2.0～2.5MPa，The cellulose in biomass in first hydrolysis reactor 15-1 is hydrolyzed，When biomass material temperature reaches 210～230 DEG C，Open the stop valve 14 on the first gas phase pipeline 8-1，The levulic acid that cellulose hydrolysis generates、Formic acid and acetic acid etc.，Also comprise a small amount of dilute sulfuric acid to be taken out of by steam，It is cooled to 170～180 DEG C by First Heat Exchanger 9-1 and low-pressure steam surge tank 13、After being depressurized to 0.6～1.0MPa，Enter the second steam pipework 12-2 of second hydrolysis reactor 15-2，The hemicellulose in biomass in second hydrolysis reactor 15-2 is at levulic acid、The catalytic action of the acid such as formic acid and acetic acid issues unboiled water solution，In the process，Levulic acid does not react，After the levulic acid generated and furfural are entered the second heat exchanger 9-2 heat exchange cooling by steam by the second gas phase pipeline 8-2，After entering acid-base neutralization tank 10 acid-base neutralization，Enter purification separation device 11，Separation can respectively obtain levulic acid and furfural，First hydrolysis reactor 15-1 reaction terminates，Waste residue is discharged by waste residue outlet，Second hydrolysis reactor 15-2 fills catalyst，Switch to the first steam pipework 12-1，3rd hydrolysis reactor 15-3 can do reinforced preparation (the 4th hydrolysis reactor 15-4 is standby).This utility model is by arranging multiple hydrolysis reactor so that in biomass water solution preocess, hydrolysis reactor can be used alternatingly, it is achieved that the seriality of biomass water solution preocess；And series connection produces between hydrolysis reactor, after utilizing cellulose generation hydrolysis, with organic acid such as levulic acid, formic acid and acetic acid in high steam, the steam source that can react as next hydrolysis of hemicellulose after decrease temperature and pressure on the one hand, on the other hand, the organic acid such as formic acid and acetic acid as the catalyst of hemicellulose, can also save energy consumption, and the resource generated in course of reaction have also been obtained effective utilization.
Claims (6)
1. a biomass by hydrolyzation prepares the device of levulic acid and furfural, it is characterized in that, including at least three hydrolysis reactor, each hydrolysis reactor top is provided with charging aperture, catalyst inlet and gas outlet, bottom is provided with waste residue outlet and air inlet, described catalyst inlet is connected to catalyst storage tank, the pipeline of gas outlet is connected to the first gas phase pipeline and the second gas phase pipeline, the pipeline of air inlet is connected to the first steam pipework and the second steam pipework, the port of export of described first gas phase pipeline is connected with First Heat Exchanger and low-pressure steam surge tank in turn, the gas outlet on described low-pressure steam surge tank top connects with the second steam pipework, described first gas phase pipeline, second gas phase pipeline, first steam pipework and the second steam pipework are provided with valve.
2. biomass by hydrolyzation according to claim 1 prepares the device of levulic acid and furfural, it is characterized in that, the port of export of described second gas phase pipeline is connected with the second heat exchanger in turn and is provided with the acid-base neutralization tank of discharging opening, and acid-base neutralization tank is also associated with alkali liquor storage tank.
3. biomass by hydrolyzation according to claim 2 prepares the device of levulic acid and furfural, it is characterised in that the discharging opening of described acid-base neutralization tank is connected to purification separation device.
4. biomass by hydrolyzation according to claim 1 prepares the device of levulic acid and furfural, it is characterised in that described catalyst storage tank is positioned at the lower section of hydrolysis reactor, and the pipeline between catalyst storage tank and catalyst inlet is provided with feed pump.
5. biomass by hydrolyzation according to claim 1 prepares the device of levulic acid and furfural, it is characterised in that described valve is stop valve.
6. the biomass by hydrolyzation according to claim 1,2,3,4 or 5 prepares the device of levulic acid and furfural, it is characterised in that described hydrolysis reactor has 3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620142135.6U CN205398516U (en) | 2016-02-26 | 2016-02-26 | Living beings are hydrolysised and are prepared device of acetylpropionic acid and furfural |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620142135.6U CN205398516U (en) | 2016-02-26 | 2016-02-26 | Living beings are hydrolysised and are prepared device of acetylpropionic acid and furfural |
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| Publication Number | Publication Date |
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| CN205398516U true CN205398516U (en) | 2016-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620142135.6U Expired - Fee Related CN205398516U (en) | 2016-02-26 | 2016-02-26 | Living beings are hydrolysised and are prepared device of acetylpropionic acid and furfural |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106432146A (en) * | 2016-09-07 | 2017-02-22 | 河北科技大学 | Equipment for manufacturing furfural from corncobs |
| CN111229130A (en) * | 2020-03-25 | 2020-06-05 | 中国科学技术大学先进技术研究院 | Continuous pressurizing feeding method of biomass |
| CN111440134A (en) * | 2020-04-23 | 2020-07-24 | 华东理工大学 | Method and device for coproduction of furfural and levulinic acid by biomass fractional hydrolysis |
-
2016
- 2016-02-26 CN CN201620142135.6U patent/CN205398516U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106432146A (en) * | 2016-09-07 | 2017-02-22 | 河北科技大学 | Equipment for manufacturing furfural from corncobs |
| CN111229130A (en) * | 2020-03-25 | 2020-06-05 | 中国科学技术大学先进技术研究院 | Continuous pressurizing feeding method of biomass |
| CN111440134A (en) * | 2020-04-23 | 2020-07-24 | 华东理工大学 | Method and device for coproduction of furfural and levulinic acid by biomass fractional hydrolysis |
| CN111440134B (en) * | 2020-04-23 | 2024-03-29 | 华东理工大学 | Method and device for coproducing furfural and levulinic acid through biomass fractional hydrolysis |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160727 Termination date: 20200226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |