CN106053660A - Method for lowering acetic acid concentration in bagasse hydrolysate - Google Patents
Method for lowering acetic acid concentration in bagasse hydrolysate Download PDFInfo
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- CN106053660A CN106053660A CN201610522571.0A CN201610522571A CN106053660A CN 106053660 A CN106053660 A CN 106053660A CN 201610522571 A CN201610522571 A CN 201610522571A CN 106053660 A CN106053660 A CN 106053660A
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- bagasse
- acetic acid
- acid concentration
- hydrolyzed solution
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/34—Organic compounds containing oxygen
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N2030/022—Column chromatography characterised by the kind of separation mechanism
- G01N2030/027—Liquid chromatography
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- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a method for lowering acetic acid concentration in bagasse hydrolysate and belongs to the field of biomass refinery. The method comprises: pretreating bagasse with an extremely low acid, placing the bagasse in a boiling pot, adding a certain amount of distilled water, adding sulfuric acid to form extremely low acid environment, heating the solution to 140-210 DEG C, holding the temperature for 40 min, and measuring the acetic acid concentration in the hydrolysate by using high-performance liquid chromatography. Compared with the prior art, the method enables significant reduction for the acetic acid concentration in the hydrolysate.
Description
Technical field
The present invention relates to biorefinery field, a kind of reduce the method for acetic acid concentration in bagasse hydrolyzate.
Background technology
The fossil energies such as coal, oil, natural gas are the core energy of industrial society, but are not Renewable resources, if do not had
Have the new energy to replace its leading position in energy resource structure, can occur one day the energy serious, catastrophic and
Environmental crisis.Biomass energy both can contribute energy substitute fossil fuels, can produce chemical products again as coal and oil
Substitute fossil product, bring huge environment, economy and safety benefit to society, be the regenerative resource having a extensive future.At present,
Biomass Industry is the most progressively developed, and the study hotspot of biorefinery Yi Shi world today scientific domain, wood fibre is former
Material will be the primary raw material of biorefinery from now on, and how enterprises in pulp and paper industry combines with biorefinery technology is papermaking
The important topic that industry expectation solves, is the key link realizing papermaking enterprise transition and upgrade, sustainable development.
Summary of the invention
The present invention is in order to reduce Wooden Biomass hydrolysis acetic acid concentration further, it is provided that second in a kind of reduction bagasse hydrolyzate
The method of acid concentration.The method is simple, adds trace sulphuric acid and forms ultralow low-kappa number, and in hydrolyzed solution, acetic acid concentration significantly drops
Low.
The technical scheme is that
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, acetic acid 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 formic acid concn, the acetic acid concentration obtained is followed successively by 201mg/L, 413mg/L.
2) the 2 of step 1 are taken) hydrolyzed solution of ultralow low-kappa number bagasse collected, utilize efficient liquid phase chromatography of ions to examine
Surveying formic acid concn, the acetic acid concentration obtained is 525mg/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
Formic acid concn is 201mg/L.
Compared with prior art beneficial effects of the present invention:
Forming ultralow low-kappa number by adding trace sulphuric acid, in hydrolyzed solution, acetic acid concentration is greatly reduced.
Detailed description of the invention
Below in conjunction with embodiment, the inventive method is described in further detail.
Embodiment 1
A kind of reducing the method for acetic acid concentration 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, acetic acid 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 acetic acid
Concentration, the acetic acid concentration obtained is 525mg/L.
Embodiment 2
A kind of reducing the method for acetic acid concentration 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, acetic acid 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 acetic acid
Concentration, the acetic acid concentration obtained is 201mg/L.
Embodiment 3
A kind of reducing the method for acetic acid concentration 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, acetic acid 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 acetic acid
Concentration, the acetic acid concentration obtained is 413mg/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 reduced the method for acetic acid concentration 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, acetic acid content measures:
2.1) step 1.1 is taken) hydrolyzed solution of ultralow low-kappa number bagasse collected, utilize efficient liquid phase chromatography of ions to detect first
Acid concentration, the acetic acid concentration obtained is followed successively by 201mg/L, 413mg/L；
2.2) step 1.2 is taken) hydrolyzed solution of ultralow low-kappa number bagasse collected, utilize efficient liquid phase chromatography of ions to detect first
Acid concentration, the acetic acid concentration obtained is 525mg/L.
The most according to claim 1 a kind of reduce the method for acetic acid concentration 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, formic acid concn is
201mg/L。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522571.0A CN106053660A (en) | 2016-07-04 | 2016-07-04 | Method for lowering acetic acid concentration in bagasse hydrolysate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610522571.0A CN106053660A (en) | 2016-07-04 | 2016-07-04 | Method for lowering acetic acid concentration in bagasse hydrolysate |
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| CN106053660A true CN106053660A (en) | 2016-10-26 |
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| CN201610522571.0A Pending CN106053660A (en) | 2016-07-04 | 2016-07-04 | Method for lowering acetic acid concentration in bagasse hydrolysate |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613970A (en) * | 2009-06-09 | 2009-12-30 | 上海士林纤维材料有限公司 | Bagasse dissolving pulp pulping process of preextraction hemicellulose and products thereof |
-
2016
- 2016-07-04 CN CN201610522571.0A patent/CN106053660A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613970A (en) * | 2009-06-09 | 2009-12-30 | 上海士林纤维材料有限公司 | Bagasse dissolving pulp pulping process of preextraction hemicellulose and products thereof |
Non-Patent Citations (5)
| Title |
|---|
| CANDIDO.R.G.ET AL.: "Study of Sugarcane Bagasse Pretreatment with Sulfuric Acid as a Step of Cellulose Obtaining", 《INTERNATIONAL SCHOLARLY AND SCIENTIFIC RESEARCH & INNOVATION》 * |
| LARISSA CANILHA ET AL.: "A study on the pretreatment of a sugarcane bagasse sample with dilute sulfuric acid", 《J IND MICROBIOL BIOTECHNOL》 * |
| ZHANYING ZHANG ET AL.: "Pretreatment of sugarcane bagasse by acidified aqueous polyol solutions", 《CELLULOSE》 * |
| 刘瑞 等: "预处理蔗渣纤维素水解糖化研究", 《合成纤维工业》 * |
| 蒋磊: "甘蔗渣溶解浆制备过程预水解和酶预处理技术研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
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