CN109874928A - It is a kind of for improving the hydrothermal depolymerization method of ensiling material quality - Google Patents
It is a kind of for improving the hydrothermal depolymerization method of ensiling material quality Download PDFInfo
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- CN109874928A CN109874928A CN201910040167.3A CN201910040167A CN109874928A CN 109874928 A CN109874928 A CN 109874928A CN 201910040167 A CN201910040167 A CN 201910040167A CN 109874928 A CN109874928 A CN 109874928A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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Abstract
The invention discloses a kind of for improving the hydrothermal depolymerization method of ensiling material quality, the following steps are included: using ensiling raw material as substrate, using choline chloride aqueous solution as reaction medium, hydrothermal depolymerization reacts 10min-60min at 100-160 DEG C, the material after depolymerization is obtained after solidliquid mixture cooling after reaction, the present invention is by itself contained small organic molecule acid in ensiling raw material, under hydrothermal conditions by hemicellulose in raw material, the depolymerization such as starch are oligosaccharide, lignin portion is removed simultaneously, cellulose retains, so that raw material becomes loose porous, directly as forage feed domestic animal, it is beneficial to animal health, conducive to animal digestion, palatability is more preferable and does not need the subsequent processings such as detoxification, increase the content and raw material digestibility of functional oligose, if being used as biological flue gas fermentation substrate, it is aobvious It writes raising raw material gas producing efficiency and process is simple, green, safe, cheap, application easy to spread.
Description
Technical field:
The present invention relates to ensilage technical fields, and in particular to a kind of for improving the hydrothermal depolymerization of ensiling material quality
Method.
Background technique:
Raw material ensilage can meet the feeding raw material supply of livestock and poultry in the four seasons with long-term preservation viridescent succulence crop.It is green
Storage raw material saves nutrition and the moisture of dark green crop, while a large amount of lactic acid and aromatic compound that ensilage generates, and makes
It is good to obtain yellowish green raw material color, smell sour, soft and succulency, palatability.Ensiling effect is promoted except banking system, raw material type etc. is changed
Outside fruit, it will usually pass through additional organic/inorganic chemical reagent (CN 106819407A, CN104286604A), acid-producing bacteria
(CN108060103A, CN108060104A, CN107653203A, CN 104336416B) or compound bacteria enzyme agent
(CN107325974A, CN108041289A, CN106173246A, CN1224333C) Lai Tigao Silage Quality.In general, micro-
Biological ensilage mainly acts on soluble sugar or albumen, and the cellulose for accounting for predominant amount, hemicellulose and wooden
Element influences less, therefore ensiling digests livestock and poultry, and especially nonruminant digestion promotes limited extent.
Exploitation green, efficient depolymerization method, remove in ensiling raw material and are difficult to the lignin component digested, depolymerization is more held out
Digestible cellulose and hemicellulose derived carbohydrate, the quality for promoting ensiling raw material are of great significance.
Summary of the invention:
The object of the present invention is to provide a kind of for improving the hydrothermal depolymerization method of ensiling material quality, by ensiling raw material
In contained small organic molecule acid itself, be under hydrothermal conditions oligosaccharide by the depolymerization such as hemicellulose, starch in raw material, it is beneficial
Removed in animal health, while by lignin portion, cellulose retains so that raw material becomes loose porous, be conducive to animal digestion,
Palatability is more preferable and does not need the subsequent processings such as detoxification, increases the content and raw material digestibility of functional oligose, if with
Make biological flue gas fermentation substrate, significantly improves raw material gas producing efficiency and process is simple, green, safe, cheap, it is easy to spread to answer
With solving the problems, such as.
The present invention is achieved by the following technical programs:
It is a kind of for improving the hydrothermal depolymerization method of ensiling material quality, method includes the following steps: with ensiling raw material
For substrate, using choline chloride aqueous solution as reaction medium, hydrothermal depolymerization reacts 10min-60min at 100-160 DEG C, after reaction
Solidliquid mixture it is cooling after obtain the material after depolymerization.
Material lignin component after the depolymerization significantly removes, oligosaccharide ingredient significantly increases, can be directly as feeding
Material keeps fowls, or is used as biological flue gas fermentation substrate, significantly improves raw material gas producing efficiency.
The mass concentration of choline chloride is 0.1-1.0wt% in reaction medium, and biomass substrate mass concentration is 10-
20wt%.
The ensiling raw material includes ensiling whole-plant corn, silage sorghum, ensiling hybrid Chinese pennisetum, ensiling switchgrass etc..
The features of the present invention and it is a technical advantage that:
1) hydrothermal depolymerization according to the present invention relies on the ensilings raw materials, feed such as small organic molecule acid, water, choline chloride
In intrinsic substance, process green, safety；
2) the macromolecular polysaccharides depolymerization such as hemicellulose, starch in raw material is function by hydrothermal depolymerization according to the present invention
Property oligosaccharide, is beneficial to animal health；
3) hydrothermal depolymerization according to the present invention removes lignin portion in raw material, and raw material becomes loose porous, is conducive to
Animal digestion, palatability are more preferable；
4) hydrothermal depolymerization according to the present invention, process is simple, cheap, can large-scale industrial production, also can be small-scale
Casual household's operation；
In short, the present invention is sour by itself contained small organic molecule in ensiling raw material, it under hydrothermal conditions will be in raw material
The depolymerization such as hemicellulose, starch are oligosaccharide, while lignin portion being removed, and cellulose retains, so that raw material becomes loose
It is porous, directly as forage feed domestic animal, it is beneficial to animal health, conducive to animal digestion, palatability is more preferable and does not need detoxification
Etc. subsequent processings, increase the content and raw material digestibility of functional oligose, if be used as biological flue gas fermentation substrate, significantly
It improves raw material gas producing efficiency and process is simple, green, safe, cheap, application easy to spread.
Specific embodiment:
It is to further explanation of the invention, rather than limiting the invention below.
Embodiment 1:
Using ensiling whole-plant corn as raw material, reaction medium is 0.1% choline chloride aqueous solution, makes its substrate mass concentration
10%, 60min is reacted at 100 DEG C, and 100g/ kilograms of raw material is increased to by 1g/ kilograms of raw material containing total sugar amount after depolymerization, wherein
Glucose oligosaccharide increases 95g/ kilograms of raw material, the sugar degradation product such as no furfural, 5 hydroxymethyl furfural by 0.5g/ kilograms of raw material
It generates, delignification rate 10%.Material after the depolymerization can be directly as pannage, and palatability is good, easy to digest.
Embodiment 2:
Using ensiling sugar grass as raw material, reaction medium is 0.2% choline chloride aqueous solution, makes its substrate mass concentration
15%, 30min is reacted at 130 DEG C, and 50g/ kilograms of raw material is increased to by 0.6g/ kilograms of raw material containing total sugar amount after depolymerization, wherein
Glucose oligosaccharide increases 30g/ kilograms of raw material by 0.1g/ kilograms of raw material, and xylo-oligosaccharide is increased by 0g/ kilograms of raw material
18g/ kilograms of raw material, the sugar degradation product such as no furfural, 5 hydroxymethyl furfural generate, delignification rate 40%.After the depolymerization
Material can be directly as feed for goat, and palatability is good, easy to digest.
Embodiment 3:
Using ensiling hybrid Chinese pennisetum as raw material, reaction medium is 0.5% choline chloride aqueous solution, makes its substrate mass concentration
It is 20%, 10min is reacted at 160 DEG C, 60g/ kilograms of raw material is increased to by 0.1g/ kilograms of raw material containing total sugar amount after depolymerization,
Middle glucose oligosaccharide increases 15g/ kilograms of raw material by 0g/ kilograms of raw material, and xylo-oligosaccharide is increased by 0g/ kilograms of raw material
40g/ kilograms of raw material, furfural content are generated lower than 0.2g/L, without the sugared degradation product such as 5 hydroxymethyl furfural, and delignification rate is
72%.Material after the depolymerization can be directly as milk cow forage, and palatability is good, easy to digest.
Embodiment 4:
Using ensiling switchgrass as raw material, reaction medium is 1.0% choline chloride aqueous solution, makes its substrate mass concentration
20%, 60min is reacted at 160 DEG C, and 40g/ kilograms of raw material is increased to by 0.05g/ kilograms of raw material containing total sugar amount after depolymerization,
Middle glucose oligosaccharide increases 10g/ kilograms of raw material by 0g/ kilograms of raw material, and xylo-oligosaccharide is increased by 0g/ kilograms of raw material
30g/ kilograms of raw material, furfural content are generated lower than 0.4g/L, without the sugared degradation product such as 5 hydroxymethyl furfural, and delignification rate is
80%.Material after obtained depolymerization is used as biological flue gas fermentation substrate, is directly accessed anaerobic fermentation bacterial and carries out biological flue gas
Fermentation obtains biological flue gas, significantly improves raw material gas producing efficiency, and relative to untreated raw material, biological flue gas total output is improved about
400%.
Upper embodiment proves, using hydrothermal depolymerization method described above, can effectively improve ensiling material quality, significant de-
Except lignin component, and increase the content and raw material digestibility of functional oligose；Correlated response process is green safe, operation is simple
It is single, application easy to spread.
Claims (4)
1. a kind of for improving the hydrothermal depolymerization method of ensiling material quality, which is characterized in that method includes the following steps: with
Ensiling raw material is substrate, and using choline chloride aqueous solution as reaction medium, hydrothermal depolymerization reacts 10min- at 100-160 DEG C
60min obtains the material after depolymerization after the solidliquid mixture cooling after reaction.
2. according to claim 1 for improving the hydrothermal depolymerization method of ensiling material quality, which is characterized in that the depolymerization
Material afterwards is directly as forage feed domestic animal or is used as biological flue gas fermentation substrate.
3. according to claim 1 or claim 2 for improving the hydrothermal depolymerization method of ensiling material quality, which is characterized in that reaction
The mass concentration of choline chloride is 0.1-1.0wt% in medium, and biomass substrate mass concentration is 10-20wt%.
4. according to claim 1 or claim 2 for improving the hydrothermal depolymerization method of ensiling material quality, which is characterized in that described
Ensiling raw material includes ensiling whole-plant corn, silage sorghum, ensiling hybrid Chinese pennisetum, ensiling switchgrass.
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| CN201910040167.3A CN109874928B (en) | 2019-01-16 | 2019-01-16 | Hydrothermal depolymerization method for improving quality of silage raw materials |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076741A (en) * | 2008-04-30 | 2011-05-25 | 希乐克公司 | biomass processing |
| CN103461669A (en) * | 2013-10-09 | 2013-12-25 | 中机美诺科技股份有限公司 | Method for producing silage by using dry yellow cornstalks |
| CN105779531A (en) * | 2016-05-16 | 2016-07-20 | 中国科学院广州能源研究所 | Method for pretreating lignocellulose biomasses by using modified high-temperature liquid water |
| WO2018204424A1 (en) * | 2017-05-01 | 2018-11-08 | National Technology & Engineering Solutions Of Sandia, Llc | Novel compositions and methods for synthesizing deep eutectic solvents from lignin derived phenolic compounds |
-
2019
- 2019-01-16 CN CN201910040167.3A patent/CN109874928B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102076741A (en) * | 2008-04-30 | 2011-05-25 | 希乐克公司 | biomass processing |
| CN103461669A (en) * | 2013-10-09 | 2013-12-25 | 中机美诺科技股份有限公司 | Method for producing silage by using dry yellow cornstalks |
| CN105779531A (en) * | 2016-05-16 | 2016-07-20 | 中国科学院广州能源研究所 | Method for pretreating lignocellulose biomasses by using modified high-temperature liquid water |
| WO2018204424A1 (en) * | 2017-05-01 | 2018-11-08 | National Technology & Engineering Solutions Of Sandia, Llc | Novel compositions and methods for synthesizing deep eutectic solvents from lignin derived phenolic compounds |
Non-Patent Citations (4)
| Title |
|---|
| 孙优善: "玉米秸秆保质贮存及水热反应处理提高可生化性方法的研究", 《中国优秀博硕士学位论文全文数据库(博士)农业科技辑》 * |
| 李利芬: "基于氯化胆碱低共熔溶剂的木质素提取改性和降解研究", 《中国优秀博硕士学位论文全文数据库(博士)工程科技Ⅰ辑》 * |
| 李宇萍等: "木质纤维素水热解聚制备能源化工平台化合物", 《生物产业技术》 * |
| 马章全等: "《羊肉与肉羊生产》", 31 October 2016, 西北农林科技大学出版社 * |
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