CN218345391U - Production system for preparing furan resin from biomass - Google Patents
Production system for preparing furan resin from biomass Download PDFInfo
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- CN218345391U CN218345391U CN202222870859.0U CN202222870859U CN218345391U CN 218345391 U CN218345391 U CN 218345391U CN 202222870859 U CN202222870859 U CN 202222870859U CN 218345391 U CN218345391 U CN 218345391U
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Abstract
The utility model belongs to a production system for preparing furan resin by biomass; the device comprises a biomass bin, wherein the biomass bin is connected with a furfural hydrolysis device, a furfural outlet of the furfural hydrolysis device is connected with a furfuryl alcohol production device, a furfural residue outlet of the furfural hydrolysis device is connected with a coal slurry preparation device, the coal slurry preparation device is connected with a gas purification and separation device through a gasification furnace, a hydrogen outlet of the gas purification and separation device is connected with a furfuryl alcohol production device, and an outlet of the furfuryl alcohol production device is connected with a furan resin storage device through a furan resin production and synthesis device; the method has the advantages of realizing the coupling of the treatment of the furfural residues and the production of furan resin, realizing the effective reutilization of the furfural residues on the premise of avoiding the pollution of the furfural residues to the environment, and further achieving the purpose of saving the cost.
Description
Technical Field
The utility model belongs to the technical field of furan resin preparation, in particular to biomass preparation furan resin's production system.
Background
The casting resin is widely applied to the fields of locomotives, machinery, wind power, nuclear power and the like, the furan resin produced by taking furfuryl alcohol with furan rings as a raw material has the largest dosage and ratio, and the furan resin has the advantages of high curing speed, high efficiency, good performance and the like.
As is well known, furan resin is a generic name of resins produced from furfuryl alcohol having a furan ring as a raw material, which are solidified into insoluble and infusible solids in an acidic medium, and the main raw materials for producing furan resin are furfuryl alcohol, formaldehyde and urea. Firstly, urea and formaldehyde are subjected to addition reaction under alkaline conditions to generate the hydroxymethyl urea and the dimethylol urea. And (3) carrying out condensation reaction on the hydroxymethyl derivative and furfuryl alcohol under an acidic condition, and carrying out vacuum dehydration to obtain the furan resin. From the preparation process of the furan resin, furfuryl alcohol is one of raw materials for preparing the furan resin, and a conventional way for preparing furfuryl alcohol is to produce furfural through hydrolysis of biomass, and furfuryl alcohol is prepared from furfural in the subsequent process; the mode of preparing furfuryl alcohol from biomass can generate a large amount of furfural residues, the accumulation of the furfural residues in a large amount has the risk of polluting the environment, and enterprises begin to research the deep utilization of the furfural residues on the basis of the part of furfural residues to change waste into valuable, such as preparing the furfural residues into porous adsorption carbon materials, improving alkaline soil, realizing the cultivation of crops and the like by using corresponding equipment; the above-mentioned manner requires the re-purchase of the related dedicated facilities, not only resulting in a large investment cost, but also being affected by the raw material (furfural residue), which is mainly manifested in that the related dedicated facilities must be stopped simultaneously due to the lack of furfural residue when the plant for producing furan resin is in a stopped state.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect among the prior art, and provide one kind and realize make full use of to furfural sediment under the condition that uses preparation furan resin as the basis, realize practicing thrift the cost when avoiding producing the waste polluted environment to realize furfural sediment and recycle and the production system of the living beings preparation furan resin that preparation furan resin realized the coupling.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a production system of living beings preparation furan resin, this production system includes the living beings storehouse, and the living beings storehouse links to each other with furfural hydrolysis unit, and furfural export and furfuryl alcohol apparatus for producing of furfural hydrolysis unit link to each other, furfural sediment export and the coal slurry preparation facilities of furfural hydrolysis unit link to each other, and the coal slurry preparation facilities passes through the gasifier and links to each other with gaseous purification and separation device, gaseous purification and separation device's hydrogen outlet links to each other with furfuryl alcohol apparatus for producing, and furfuryl alcohol apparatus for producing's export is passed through furan resin production synthesizer and is linked to each other with furan resin storage device.
The utility model discloses still include urea production unit, urea production unit includes the nitrogen gas storage tank, and the nitrogen gas storage tank passes through synthetic ammonia device and links to each other with urea apparatus for producing, and urea apparatus for producing's urea meltwater export links to each other with urea prilling granulator and furan resin production synthesizer respectively.
Preferably, the gas-phase inlet of the ammonia synthesis device is connected with the hydrogen outlet of the gas purification and separation device.
Preferably, the gas phase inlet of the urea production device is connected with the carbon dioxide outlet of the gas purification and separation device.
Preferably, the mixed gas outlet of the gas purification and separation device is connected with the methanol synthesis device, the product outlet of the methanol synthesis device is connected with the inlet of the formaldehyde production device, and the formaldehyde liquid outlet of the formaldehyde production device is connected with the furan resin production and synthesis device.
Preferably, the additive inlet of the furan resin production and synthesis device is connected with an additive storage tank.
Preferably, the formaldehyde production device is provided with an air pipeline communicated with the atmosphere.
Preferably, the raw material inlet of the coal slurry preparation device is connected with the raw material storage tank.
According to the production system for preparing furan resin from biomass, which is manufactured according to the scheme, on the basis of relevant devices for preparing furan resin, furfural residues are recovered and enter a coal slurry preparation device and a gasification furnace, and in the subsequent process, synthetic gas is separated into hydrogen, carbon dioxide and mixed gas consisting of carbon monoxide and hydrogen through a gas purification and separation device; the utility model preferably uses the hydrogen separated by the gas purification and separation device as the raw material for preparing furfuryl alcohol by furfural, so as to realize the aim of producing furfuryl alcohol by hydrogenation; the method has the advantages of realizing the coupling of the treatment of the furfural residues and the production of furan resin, realizing the effective reutilization of the furfural residues on the premise of avoiding the pollution of the furfural residues to the environment, and further achieving the purpose of saving the cost.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention.
In the upper diagram:
1. a biomass bin; 2. a furfural hydrolysis device; 3. a furfuryl alcohol production unit; 4. a furan resin production and synthesis device; 5. a furan resin storage device; 6. an additive storage tank; 7. a raw material storage tank; 8. a gasification furnace; 9. a gas purification and separation device; 10. a methanol synthesis unit; 11. a formaldehyde production device; 12. an air duct; 13. a nitrogen storage tank; 14. an ammonia synthesis unit; 15. a urea production unit; 16. a urea granulation device; 17. coal slurry preparation facilities.
Detailed Description
The technical solution of the present invention will be clearly and completely described below with reference to the specific embodiments. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the utility model relates to a production system of living beings preparation furan resin, this production system include living beings storehouse 1, and living beings storehouse 1 links to each other with furfural hydrolysis unit 2, and furfural export and furfuryl alcohol apparatus for producing 3 of furfural hydrolysis unit 2 link to each other, furfural residue export and coal slurry apparatus for producing 17 of furfural hydrolysis unit 2 link to each other, and coal slurry apparatus for producing 17 links to each other with gas purification and separation device 9 through gasifier 8, gas purification and separation device 9's hydrogen export links to each other with furfuryl alcohol apparatus for producing 3, and furfuryl alcohol apparatus for producing 3's export is passed through furan resin production synthesizer 4 and is linked to each other with furan resin storage device 5. The utility model utilizes furfural residue after biomass hydrolysis as one of the raw materials in the coal slurry preparation device 17, burns in the gasification furnace 8, and then enters the gas purification and separation device 9 for gas purification and separation, and hydrogen, carbon dioxide and the mixed gas of hydrogen and carbon monoxide can be obtained after the gas purification and separation; the hydrogen can enter the furfuryl alcohol production device 3 for hydrogenation reaction to meet the requirement of furfuryl alcohol production, so that the cost of outsourcing hydrogen is saved.
The utility model discloses still include urea production unit, urea production unit includes nitrogen gas storage tank 13, and nitrogen gas storage tank 13 links to each other with urea apparatus for producing 15 through synthetic ammonia device 14, and urea apparatus for producing 15's urea melt liquid export links to each other with urea prilling granulator 16 and furan resin production synthesizer 4 respectively. The utility model discloses still included the urea production unit, the urea meltwater of output can directly get into furan resin production synthesizer 4 in this urea apparatus for producing, has avoided in traditional production process to need to heat the steam consumption to molten condition to urea.
Further, a gas phase inlet of the ammonia synthesis device 14 is connected with a hydrogen outlet of the gas purification and separation device 9. The utility model discloses in the hydrogen that obtains of separation in the gas purification and separation device 9 except can be applied to the reaction of hydrogenation production furfuryl alcohol, can also get into the raw materials use as production ammonia in the synthetic ammonia device 14 to reach the purpose of practicing thrift hydrogen purchase cost outward.
Further, a gas phase inlet of the urea production device 15 is connected with a carbon dioxide outlet of the gas purification and separation device 9. The utility model discloses in the carbon dioxide that the separation obtained in the gas purification separator 9 can be applied to urea apparatus for producing 15 for the production urea uses, in order to reach the purpose of practicing thrift carbon dioxide purchase cost outward.
Further, the mixed gas outlet of the gas purification and separation device 9 is connected with the methanol synthesis device 10, the product outlet of the methanol synthesis device 10 is connected with the inlet of the formaldehyde production device 11, and the formaldehyde liquid outlet of the formaldehyde production device 11 is connected with the furan resin production and synthesis device 4. The mixed gas purified and separated in the medium gas purification and separation device 9 of the utility model can be used as the raw material for synthesizing methanol, thereby achieving the purpose of saving the synthesis cost, the synthesized methanol enters the formaldehyde production device 11 and is oxidized by the air to form formaldehyde, and the formaldehyde can be directly applied to the preparation of furan resin as one of the raw materials for producing the furan resin; the utility model discloses an optimization to whole production system not only can realize the coupling to the processing of furfural sediment and production furan resin system, realizes practicing thrift the cost on the basis of avoiding the waste pollution environment, and reduces the characteristics of steam consumption.
Further, an additive inlet of the furan resin production and synthesis device 4 is connected with an additive storage tank 6.
Further, an air pipeline 12 communicated with the atmosphere is arranged on the formaldehyde production device 11.
Further, a raw material inlet of the coal slurry preparation device 17 is connected with the raw material storage tank 7.
The utility model discloses a theory of operation does: the biomass in the biomass bin 1 enters a furfural hydrolysis device 2 to be hydrolyzed to obtain furfural, and the furfural enters a furfuryl alcohol production device 3 to react with hydrogen from a gas purification and separation device 9 to obtain furfuryl alcohol; the furfural residues after hydrolysis in the process enter a coal slurry preparation device 17, the raw materials in the raw material storage tank 7 enter the coal slurry preparation device 17 at the same time, and the raw materials are mixed to prepare coal slurry; the coal slurry enters a gasification furnace 8 to burn to obtain synthetic gas, and the synthetic gas enters a gas purification and separation device 9 to be purified and separated; the gas separation device 9 obtains hydrogen, carbon dioxide and a mixed gas consisting of hydrogen and carbon monoxide through purification and separation; one part of the hydrogen obtained in the gas purification and separation device 9 is sent into a furfuryl alcohol production device 3 for furfural hydrogenation, the other part of the hydrogen enters a synthetic ammonia device 14 for producing urea raw material synthetic ammonia, the synthetic ammonia and the carbon dioxide obtained by the gas separation device 9 enter a urea production device 15 for synthesizing urea melt liquid, one part of the urea melt liquid enters a urea granulation device 16 for producing urea, and the other part of the urea melt liquid enters a furan resin production and synthesis device 4; the mixed gas of carbon monoxide and hydrogen of the gas purification and separation device 9 enters a methanol synthesis device 10 for synthesizing methanol, and the methanol is oxidized by air from an air pipeline 12 in a formaldehyde production device 11 to generate formaldehyde; the furfuryl alcohol from the furfuryl alcohol production device 3, the urea melt from the urea production device 15 and the formaldehyde solution from the formaldehyde production device 11 enter the furan resin production synthesis device 4 to obtain furan resin through condensation reaction.
Specifically, the method comprises the following steps: a production system for preparing furan resin from biomass comprises the following steps: the method comprises the following steps: hydrolyzing biomass in the biomass bin 1 in a furfural hydrolysis device 2 to obtain furfural, and reacting the furfural in a furfuryl alcohol production device 3 with hydrogen from a gas purification and separation device 9 to obtain furfuryl alcohol; the biomass 1 comprises corncobs, straws and the like; the furfural hydrolysis device 2 comprises the working procedures of hydrolysis, rectification and the like, and the mass concentration of produced furfural in the furfural device 2 is more than 98.5%; the hydrogenation process of the furfuryl alcohol production device 3 comprises but is not limited to liquid phase furfural hydrogenation to produce furfuryl alcohol, and the hydrogenation reaction temperature in the furfuryl alcohol production device 3 is 190-240 ℃, and the pressure is 5.5-8.0MPa; the furfural production device 3 also comprises a furfuryl alcohol rectification process; step two: the furfural residues obtained by the furfural hydrolysis device 2 enter a coal slurry preparation device 17, the raw materials in the raw material storage tank 7 simultaneously enter the coal slurry preparation device 17, the raw materials are mixed to prepare coal slurry, and the coal slurry enters a gasification furnace 8 to be combusted to obtain synthetic gas which enters a gas purification and separation device 9 for purification and separation; the raw material storage tanks 7 can be a plurality of, such as a water storage tank, a raw material coal bunker, an organic waste liquid storage tank, an organic solid waste storage bunker and the like; raw materials entering the coal slurry preparation device 17 comprise process raw materials such as water, organic waste liquid, organic waste solids, raw coal and the like or recovered waste materials; the coal slurry preparation device 17 comprises equipment and devices such as a ball mill and a rod mill, and the concentration of the coal slurry obtained by the coal slurry preparation device 17 is 45-65%; the gasification furnace 8 is a water-coal-slurry gasification furnace, and the process pressure is 4.0-8.7MPa; the synthesis gas obtained by burning in the gasification furnace 8 comprises gas components such as carbon monoxide, carbon dioxide, hydrogen and the like; the gas purification and separation device 9 comprises a CO conversion device, a low-temperature methanol washing device, a cryogenic separation device, a membrane separation and purification device and the like. Step three: one part of hydrogen of the gas purification and separation device 9 is sent into the furfuryl alcohol production device 3 for furfural hydrogenation, and the other part is sent into the ammonia synthesis device 14 for urea raw material synthesis ammonia production; the gas separation device 9 obtains three process gases, wherein the three process gases comprise hydrogen, carbon dioxide and a mixed gas consisting of hydrogen and carbon monoxide; step four: the synthetic ammonia at the outlet of the synthetic ammonia device 14 and the carbon dioxide from the gas purification and separation device 9 in the third step enter a urea production device 15 to synthesize urea melt, one part of the urea melt is sent to a urea granulation device 16 for producing urea, and the other part of the urea melt enters a furan resin production and synthesis device 4; the urea production device 15 comprises devices and processes such as a carbon dioxide compression device, a synthesis device and an evaporation system; the temperature of the urea melt is 45-140 ℃, and the urea content is more than 95%; step five: the mixed gas of carbon monoxide and hydrogen from the gas purification and separation device 9 enters a methanol synthesis device 10 to synthesize methanol, and the methanol is oxidized by air from an air pipeline 12 in a formaldehyde production device 11 to generate formaldehyde. The volume ratio of the carbon monoxide to the hydrogen in the mixed gas of the carbon monoxide and the hydrogen is 1. The reaction pressure of the methanol synthesis device 10 is 4.0-5.0MPa, and the temperature is 190-250 ℃. The methanol synthesis device 10 comprises equipment and devices such as a fixed bed reactor, a steam drum, a methanol rectifying tower and the like. The concentration of the formaldehyde solution produced by the formaldehyde production device 11 is 37-57%. Step six: furfuryl alcohol from a furfuryl alcohol production device 3, urea melt liquid from a urea production device 15 and formaldehyde solution from a formaldehyde production device 11 enter a furan resin production and synthesis device 4, corresponding additives are added into the furan resin production and synthesis device 4 through an additive storage tank 6, and furan resin is obtained through condensation reaction; the furan resin production and synthesis device 4 comprises equipment and devices such as a reaction kettle, a stirrer and the like, and the furan resin production device 4 comprises production processes such as condensation, pH adjustment, dehydration and the like; the condensation reaction operating conditions in the furan resin production and synthesis device 4 are normal pressure, temperature: 60-120 ℃; the additive 6 comprises sodium hydroxide, ammonia water, acetic acid, ammonium chloride, melamine and other materials.
The biomass acidolysis in the utility model obtains furfural and furfural residues, the furfural residues are burned in the coal water slurry gasification furnace to obtain synthesis gas which is used for producing furfuryl alcohol, formaldehyde and urea, and finally synthesizing furan resin, thereby realizing the full and complete utilization and high added value conversion of biomass; in addition, the gasification furnace of the utility model takes furfural residue, organic waste liquid and organic waste solid as main raw materials, and part of raw material coal is matched, thereby changing waste into valuable; the formaldehyde synthesis, the furfuryl alcohol, the urea and the resin synthesis are continuously and sequentially produced, and the thermal furfuryl alcohol and the thermal urea solution carry certain heat to enter the resin synthesis device, so that the steam consumption of the resin synthesis is reduced.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "connected," "connected," and the like are to be construed broadly, and may be, for example, a fixed connection, an integral connection, or a detachable connection; or communication between the interiors of the two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific situation. It should be noted that, in this document, "first", "second", etc. are used only for distinguishing one from another, and do not indicate their importance, order, etc. The above detailed description is only specific to the feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments, modifications and alterations without departing from the spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a production system of living beings preparation furan resin, this production system includes living beings storehouse (1), and living beings storehouse (1) links to each other with furfural hydrolysis unit (2), and the furfural export of furfural hydrolysis unit (2) links to each other its characterized in that with furfuryl alcohol apparatus for producing (3): a furfural residue outlet of the furfural hydrolysis device (2) is connected with a coal slurry preparation device (17), the coal slurry preparation device (17) is connected with a gas purification and separation device (9) through a gasification furnace (8), a hydrogen outlet of the gas purification and separation device (9) is connected with a furfuryl alcohol production device (3), and an outlet of the furfuryl alcohol production device (3) is connected with a furan resin storage device (5) through a furan resin production and synthesis device (4).
2. The production system for preparing furan resin from biomass according to claim 1, wherein: the device also comprises a urea production unit, wherein the urea production unit comprises a nitrogen storage tank (13), the nitrogen storage tank (13) is connected with a urea production device (15) through a synthetic ammonia device (14), and a urea melt liquid outlet of the urea production device (15) is respectively connected with a urea granulation device (16) and a furan resin production synthesis device (4).
3. The production system for preparing furan resin from biomass according to claim 2, wherein: and a gas-phase inlet of the ammonia synthesis device (14) is connected with a hydrogen outlet of the gas purification and separation device (9).
4. The production system for preparing furan resin from biomass according to claim 2, wherein: and a gas-phase inlet of the urea production device (15) is connected with a carbon dioxide outlet of the gas purification and separation device (9).
5. A biomass furan resin production system according to any one of claims 1-4, wherein: the mixed gas outlet of the gas purification and separation device (9) is connected with the methanol synthesis device (10), the product outlet of the methanol synthesis device (10) is connected with the inlet of the formaldehyde production device (11), and the formaldehyde liquid outlet of the formaldehyde production device (11) is connected with the furan resin production and synthesis device (4).
6. The production system for preparing furan resin from biomass according to claim 5, wherein: and an additive inlet of the furan resin production and synthesis device (4) is connected with an additive storage tank (6).
7. The biomass furan resin production system of claim 5, wherein: and an air pipeline (12) communicated with the atmosphere is arranged on the formaldehyde production device (11).
8. The biomass furan resin production system of claim 1, wherein: and a raw material inlet of the coal slurry preparation device (17) is connected with the raw material storage tank (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222870859.0U CN218345391U (en) | 2022-10-28 | 2022-10-28 | Production system for preparing furan resin from biomass |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222870859.0U CN218345391U (en) | 2022-10-28 | 2022-10-28 | Production system for preparing furan resin from biomass |
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| CN218345391U true CN218345391U (en) | 2023-01-20 |
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| CN202222870859.0U Active CN218345391U (en) | 2022-10-28 | 2022-10-28 | Production system for preparing furan resin from biomass |
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