CN105418554A - Furfural preparation method adopting bagasse as major raw material - Google Patents
Furfural preparation method adopting bagasse as major raw material Download PDFInfo
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- CN105418554A CN105418554A CN201510862713.3A CN201510862713A CN105418554A CN 105418554 A CN105418554 A CN 105418554A CN 201510862713 A CN201510862713 A CN 201510862713A CN 105418554 A CN105418554 A CN 105418554A
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- bagasse
- raw material
- furfural
- microwave cracking
- solution
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- 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
- C07D307/50—Preparation from natural products
Abstract
The invention discloses a furfural preparation method adopting bagasse as major raw material. The method comprises the following steps: pretreating bagasse; performing microwave pyrolysis; and converting the bagasse into furfural through high temperature and high pressure. According to the furfural preparation method adopting bagasse as the major raw material disclosed by the invention, through the microwave pyrolysis of bagasse, the production efficiency is high, the raw material cost is low, the conversion rate is high, the energy consumption can be reduced, the comprehensive utilization rate of the raw material is increased, and perfect economic benefits are created.
Description
Technical field
The present invention relates to a kind of preparation method of furfural, particularly a kind of take bagasse as the method that main raw material prepares furfural.
Background technology
The agricultural byproducts of the furfural industrially luxuriant sugar of the many contractings of multiplex carbohydrate containing are raw material, are hydrolyzed under the effect of diluted acid, and further water ringization manufactures furfural.Furfural is excellent solvent, also for the preparation of medicine and Industrial products.The preparation of existing furfural adopts corn cob as raw material mostly, but along with the rise of corn cob cost of material, cost increases gradually, have impact on the economic benefit of enterprise, and the existing method inefficiency preparing furfural, furfural income is low.
Summary of the invention
For solving the problem, the invention discloses a kind of take bagasse as the method that main raw material prepares furfural.
In order to achieve the above object, the invention provides following technical scheme: a kind of is the method that main raw material prepares furfural with bagasse, comprises the steps:
(1) bagasse powder flour is broken into particulate state in small, broken bits for subsequent use;
(2) by the particle crushed by putting into container, dry with taking out after the hot-water soak 3-5 of 90-100 ° hour;
(3) added by the bagasse particles dried in the phosphoric acid solution of 7-9% and mix, every 100g solution adds 80g bagasse particles;
(4) mixture after step (3) reaction treatment is put into the reaction vessel of quartz, adopt the microwave power of 2000W, maintain the temperature at 420-450 ° and carry out microwave cracking;
(5) microwave cracking liquid completely reacted for step (4) is collected;
(6), after the microwave cracking liquid in step (5) being placed 20-30min, filter, obtain filtered liquid;
(7) filtered liquid is put into reactor, at pressure 2.5-3.2MPa, temperature is react 3-4h under the environment of 220-270 ° to obtain furfuryl aldehyde solution;
(8) furfuryl aldehyde solution is carried out distillation and obtain highly purified furfural.
Beneficial effect:
Provided by the invention take bagasse as the method that main raw material prepares furfural, and by carrying out microwave cracking with bagasse, production efficiency is high, and raw materials cost is low, and transformation efficiency is high, can reduce energy consumption, improves the comprehensive utilization ratio of raw material, has good economic benefit.
Embodiment
Below with reference to specific embodiment, technical scheme provided by the invention is described in detail, following embodiment should be understood and be only not used in for illustration of the present invention and limit the scope of the invention.
The invention provides a kind of is the method that main raw material prepares furfural with bagasse, comprises the steps:
(1) bagasse powder flour is broken into particulate state in small, broken bits for subsequent use;
(2) by the particle crushed by putting into container, dry with taking out after the hot-water soak 3-5 of 90-100 ° hour;
(3) added by the bagasse particles dried in the phosphoric acid solution of 7-9% and mix, every 100g solution adds 80g bagasse particles;
(4) mixture after step (3) reaction treatment is put into the reaction vessel of quartz, adopt the microwave power of 2000W, maintain the temperature at 420-450 ° and carry out microwave cracking;
(5) microwave cracking liquid completely reacted for step (4) is collected;
(6), after the microwave cracking liquid in step (5) being placed 20-30min, filter, obtain filtered liquid;
(7) filtered liquid is put into reactor, at pressure 2.5-3.2MPa, temperature is react 3-4h under the environment of 220-270 ° to obtain furfuryl aldehyde solution;
(8) furfuryl aldehyde solution is carried out distillation and obtain highly purified furfural.
Provided by the invention take bagasse as the method that main raw material prepares furfural, and by carrying out microwave cracking with bagasse, production efficiency is high, and raw materials cost is low, and transformation efficiency is high, can reduce energy consumption, improves the comprehensive utilization ratio of raw material, has good economic benefit.
Finally should illustrate; above example is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although done to explain to the present invention with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify to technical scheme of the present invention or equivalent replacement, and not depart from essence and the scope of technical solution of the present invention.
Claims (1)
1. be the method that main raw material prepares furfural with bagasse, it is characterized in that: comprise the steps:
(1) bagasse powder flour is broken into particulate state in small, broken bits for subsequent use;
(2) by the particle crushed by putting into container, dry with taking out after the hot-water soak 3-5 of 90-100 ° hour;
(3) added by the bagasse particles dried in the phosphoric acid solution of 7-9% and mix, every 100g solution adds 80g bagasse particles;
(4) mixture after step (3) reaction treatment is put into the reaction vessel of quartz, adopt the microwave power of 2000W, maintain the temperature at 420-450 ° and carry out microwave cracking;
(5) microwave cracking liquid completely reacted for step (4) is collected;
(6), after the microwave cracking liquid in step (5) being placed 20-30min, filter, obtain filtered liquid;
(7) filtered liquid is put into reactor, at pressure 2.5-3.2MPa, temperature is react 3-4h under the environment of 220-270 ° to obtain furfuryl aldehyde solution;
(8) furfuryl aldehyde solution is carried out distillation and obtain highly purified furfural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510862713.3A CN105418554A (en) | 2015-12-01 | 2015-12-01 | Furfural preparation method adopting bagasse as major raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510862713.3A CN105418554A (en) | 2015-12-01 | 2015-12-01 | Furfural preparation method adopting bagasse as major raw material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105418554A true CN105418554A (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510862713.3A Pending CN105418554A (en) | 2015-12-01 | 2015-12-01 | Furfural preparation method adopting bagasse as major raw material |
Country Status (1)
| Country | Link |
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| CN (1) | CN105418554A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108586395A (en) * | 2018-06-28 | 2018-09-28 | 广西浙缘农业科技有限公司 | A method of preparing alditol with bagasse |
| CN108707128A (en) * | 2018-06-28 | 2018-10-26 | 广西浙缘农业科技有限公司 | A method of extracting alditol from bagasse |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108586395A (en) * | 2018-06-28 | 2018-09-28 | 广西浙缘农业科技有限公司 | A method of preparing alditol with bagasse |
| CN108707128A (en) * | 2018-06-28 | 2018-10-26 | 广西浙缘农业科技有限公司 | A method of extracting alditol from bagasse |
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Application publication date: 20160323 |
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