CN106083776A - A kind of improve the method for furfural content in bagasse hydrolyzate - Google Patents
A kind of improve the method for furfural content in bagasse hydrolyzate Download PDFInfo
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- CN106083776A CN106083776A CN201610525645.6A CN201610525645A CN106083776A CN 106083776 A CN106083776 A CN 106083776A CN 201610525645 A CN201610525645 A CN 201610525645A CN 106083776 A CN106083776 A CN 106083776A
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- Prior art keywords
- bagasse
- furfural content
- hydrolyzed solution
- kappa number
- quality
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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 and a kind of improve the method for furfural content in bagasse hydrolyzate, belong to biorefinery field.Described method includes utilizing ultralow low-kappa number bagasse, is put into by bagasse in cooker, adds a certain amount of distilled water, add sulphuric acid and form ultralow acid environment, solution is heated to 140～210 DEG C, and temperature retention time is 40min, utilizes Water By High Performance Liquid solution liquid furfural content.Compared with prior art, in hydrolyzed solution, furfural content significantly improves the present invention.
Description
Technical field
The present invention relates to biorefinery field, a kind of improve the method for furfural content in bagasse hydrolyzate.
Background technology
Lignocellulose has the physical arrangement of densification, if solely using enzyme to hydrolyze it, enzyme molecule is difficult to enter
Its internal structure causes the hydrolysis efficiency of lignocellulose the lowest.And make chemically lignocellulose to be hydrolyzed, then
Generally requiring and carry out under high temperature, high pressure, acid condition, the requirement to reaction equipment is of a relatively high.Therefore, at lignocellulose
Hydrolysis before, first lignocellulose is carried out pretreatment, to destroy hemicellulose in lignocellulose, cellulose and lignin
Contact between three, increases the accessibility of cellulose in lignocellulose, then carries out enzyme hydrolysis or chemical hydrolysis, and then improve
The service efficiency of lignocellulose.
Summary of the invention
The present invention is in order to improve Wooden Biomass hydrolysis furfural content further, it is provided that bran in a kind of raising bagasse hydrolyzate
The method of aldehyde concentration.The method is simple, adds trace sulphuric acid and forms ultralow low-kappa number, and in hydrolyzed solution, furfural content significantly carries
High.
The technical scheme is that
A kind of improving the method for furfural content in bagasse hydrolyzate, operating procedure is as follows:
The most ultralow low-kappa number bagasse:
1) bagasse quality g after over dry: distilled water volume mL is 1: 15, all puts into cooker by bagasse after over dry and distilled water
In, adding sulphuric acid quality is the 0～0.10% of mixed liquor quality, then uses electrothermal heating mode, and temperature from ambient is warming up to
140～210 DEG C, then solid-liquid separation after insulation 40min, collects the hydrolyzed solution of ultralow low-kappa number bagasse.
2) bagasse quality g after over dry: distilled water volume mL is 1: 15, all puts into cooker by bagasse after over dry and distilled water
In, without sulphuric acid, then using electrothermal heating mode, temperature from ambient is warming up to 140 DEG C, then solid-liquid after insulation 40min
Separate, collect the hydrolyzed solution of ultralow low-kappa number bagasse.
2. in hydrolyzed solution, furfural content measures:
1) the 1 of step 1 is taken) hydrolyzed solution of ultralow low-kappa number bagasse collected, utilize efficient liquid phase chromatography of ions to examine
Surveying furfural content, the furfural content obtained is followed successively by 182mg/L, 94mg/L.
2.2) the 2 of step 1 are taken) hydrolyzed solution of ultralow low-kappa number bagasse collected, utilize efficient liquid phase chromatography of ions
Detection furfural content, the furfural content obtained is 11mg/L.
The 1 of above-mentioned steps 1) in add sulphuric acid quality be the 0.05% of mixed liquor quality, when temperature is 170 DEG C in hydrolyzed solution
Furfural content is 182mg/L.
Compared with prior art beneficial effects of the present invention:
Forming ultralow low-kappa number by adding trace sulphuric acid, in hydrolyzed solution, furfural content is greatly improved.
Detailed description of the invention
Below in conjunction with embodiment, the inventive method is described in further detail.
Embodiment 1
A kind of improving the method for furfural content in bagasse hydrolyzate, operating procedure is as follows:
The most ultralow low-kappa number bagasse:
Bagasse quality g after over dry: distilled water volume mL is 1: 15, all puts into cooker by bagasse after over dry and distilled water
In, without sulphuric acid, then using electrothermal heating mode, temperature from ambient is warming up to 140 DEG C, then solid-liquid after insulation 40min
Separate, collect the hydrolyzed solution of ultralow low-kappa number bagasse.
2. in hydrolyzed solution, furfural content measures:
Take the hydrolyzed solution of the ultralow low-kappa number bagasse that step 1 is collected, utilize efficient liquid phase chromatography of ions to detect furfural
Concentration, the furfural content obtained is 11mg/L.
Embodiment 2
A kind of improving the method for furfural content in bagasse hydrolyzate, operating procedure is as follows:
The most ultralow low-kappa number bagasse:
Bagasse quality g after over dry: distilled water volume mL is 1: 15, all puts into cooker by bagasse after over dry and distilled water
In, adding sulphuric acid quality is the 0.05% of mixed liquor quality, then uses electrothermal heating mode, and temperature from ambient is warming up to 170
DEG C, then solid-liquid separation after insulation 40min, collects the hydrolyzed solution of ultralow low-kappa number bagasse.
2. in hydrolyzed solution, furfural content measures:
Take the hydrolyzed solution of the ultralow low-kappa number bagasse that step 1 is collected, utilize efficient liquid phase chromatography of ions to detect furfural
Concentration, the furfural content obtained is 182mg/L.
Embodiment 3
A kind of improving the method for furfural content in bagasse hydrolyzate, operating procedure is as follows:
The most ultralow low-kappa number bagasse:
Bagasse quality g after over dry: distilled water volume mL is 1: 15, all puts into cooker by bagasse after over dry and distilled water
In, adding sulphuric acid quality is the 0.10% of mixed liquor quality, then uses electrothermal heating mode, and temperature from ambient is warming up to 210
DEG C, then solid-liquid separation after insulation 40min, collects the hydrolyzed solution of ultralow low-kappa number bagasse.
2. in hydrolyzed solution, furfural content measures:
Take the hydrolyzed solution of the ultralow low-kappa number bagasse that step 1 is collected, utilize efficient liquid phase chromatography of ions to detect furfural
Concentration, the furfural content obtained is 94mg/L.
It is only several specific embodiments of the present invention it should be noted that listed above.It is clear that the invention is not restricted to
Above example, it is also possible to have many deformation.Those of ordinary skill in the art directly can derive from present disclosure
Or all deformation associated, all it is considered as protection scope of the present invention.
Claims (2)
1. one kind is improved the method for furfural content in bagasse hydrolyzate, it is characterised in that operating procedure is as follows:
1) ultralow low-kappa number bagasse:
1.1) bagasse quality g after over dry: distilled water volume mL is 1: 15, all puts into cooker by bagasse after over dry and distilled water
In, adding sulphuric acid quality is the 0～0.10% of mixed liquor quality, then uses electrothermal heating mode, and temperature from ambient is warming up to
140～210 DEG C, then solid-liquid separation after insulation 40min, collects the hydrolyzed solution of ultralow low-kappa number bagasse；
1.2) bagasse quality g after over dry: distilled water volume mL is 1: 15, all puts into cooker by bagasse after over dry and distilled water
In, without sulphuric acid, then using electrothermal heating mode, temperature from ambient is warming up to 140 DEG C, then solid-liquid after insulation 40min
Separate, collect the hydrolyzed solution of ultralow low-kappa number bagasse；
2) in hydrolyzed solution, furfural content measures:
2.1) take the hydrolyzed solution of the ultralow low-kappa number bagasse that step (1) is collected, utilize efficient liquid phase chromatography of ions to detect bran
Aldehyde concentration, the furfural content obtained is followed successively by 182mg/L, 94mg/L；
2.2) take the hydrolyzed solution of the ultralow low-kappa number bagasse that step 1 is collected, utilize efficient liquid phase chromatography of ions to detect furfural
Concentration, the furfural content obtained is 11mg/L.
The most according to claim 1 a kind of improve the method for furfural content in bagasse hydrolyzate, it is characterised in that described step
Rapid 1.1) adding sulphuric acid quality in is the 0.05% of mixed liquor quality, and when temperature is 170 DEG C, in hydrolyzed solution, furfural content is
182mg/L。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525645.6A CN106083776A (en) | 2016-07-04 | 2016-07-04 | A kind of improve the method for furfural content in bagasse hydrolyzate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610525645.6A CN106083776A (en) | 2016-07-04 | 2016-07-04 | A kind of improve the method for furfural content in bagasse hydrolyzate |
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| CN201610525645.6A Pending CN106083776A (en) | 2016-07-04 | 2016-07-04 | A kind of improve the method for furfural content in bagasse hydrolyzate |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381450A (en) * | 2001-04-17 | 2002-11-27 | 上海长洁卫生保健制品有限公司 | Process for preparing glycoaldehyde from cane dregs |
| CN101798603A (en) * | 2010-03-22 | 2010-08-11 | 华东理工大学 | Hydrolysis method of lignocellulosic biomass |
| CN102816877A (en) * | 2012-08-29 | 2012-12-12 | 上海交通大学 | Hydrothermal saccharification method and device for cellulose biomass |
-
2016
- 2016-07-04 CN CN201610525645.6A patent/CN106083776A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381450A (en) * | 2001-04-17 | 2002-11-27 | 上海长洁卫生保健制品有限公司 | Process for preparing glycoaldehyde from cane dregs |
| CN101798603A (en) * | 2010-03-22 | 2010-08-11 | 华东理工大学 | Hydrolysis method of lignocellulosic biomass |
| CN102816877A (en) * | 2012-08-29 | 2012-12-12 | 上海交通大学 | Hydrothermal saccharification method and device for cellulose biomass |
Non-Patent Citations (1)
| Title |
|---|
| 田华丽等: "超低酸预处理木薯渣过程中碳水化合物及发酵抑制物的溶出规律", 《中国造纸学会第十七届学术年会论文集》 * |
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Application publication date: 20161109 |