WO2007102638A1 - Procédé de production de xylose à partir de bambous - Google Patents

Procédé de production de xylose à partir de bambous Download PDF

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Publication number
WO2007102638A1
WO2007102638A1 PCT/KR2006/001337 KR2006001337W WO2007102638A1 WO 2007102638 A1 WO2007102638 A1 WO 2007102638A1 KR 2006001337 W KR2006001337 W KR 2006001337W WO 2007102638 A1 WO2007102638 A1 WO 2007102638A1
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WO
WIPO (PCT)
Prior art keywords
bamboo
xylose
prehydrolysis
water
bamboo chips
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2006/001337
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English (en)
Inventor
Kwon-Hyok Lee
Jong-Myoung Won
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Individual
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Individual
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Filing date
Publication date
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Publication of WO2007102638A1 publication Critical patent/WO2007102638A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K1/00—Glucose; Glucose-containing syrups
    • C13K1/02—Glucose; Glucose-containing syrups obtained by saccharification of cellulosic materials
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
    • C13K13/00—Sugars not otherwise provided for in this class
    • C13K13/007—Separation of sugars provided for in subclass C13K
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes

Definitions

  • xylose has been produced primarily from birch wood.
  • xylose may be produced by the separation of xylose from components dissolved during digestion of various wood species and herbaceous plants with organic solvents.
  • the present invention relates to a method for producing xylose from bamboo, and more particularly to a method for producing xylose from bamboo, which provides a solution to the economic and environmental problems occurring in the prior art and is used to recover xylose as resources from hemicellulose dissolved during prehydrolysis and digestion steps in a process of producing high-quality dissolving pulp.
  • xylose has been produced primarily from birch wood.
  • xylose may be produced by the separation of xylose from components dissolved during digestion of various wood species and herbaceous plants with organic solvents.
  • the present invention has been made in view of the above problems, and it is an object of the present invention to provide a method for producing xylose from bamboo, and more particularly a method for producing xylose from bamboo, which provides a solution to the economic and environmental problems occurring in the prior art and is used to recover xylose as resources from hemicellulose dissolved during prehydrolysis and digestion steps in a process of producing high-quality dissolving pulp.
  • a method for producing xylose as a raw material of gum from bamboo comprising the steps of 1) removing leaves from bamboo; 2) splitting bamboo culms at a regular interval of 1.5 to 3 mm in a longitudinal direction; 3) cutting the longitudinally-split culms to a length of 10 to 30 mm in a horizontal direction to produce bamboo chips; 4) screening debris and impurities from the cut bamboo chips; 5) water-washing to remove impurities, foreign materials and dust from the cut bamboo chips; 6) subjecting the washed bamboo chips to prehydrolysis using water or steam, followed by addition of a suitable amount of a catalyst depending upon a desired degree of prehydrolysis to facilitate prehydrolysis to dissolve hemicellulose components; 7) concentrating the solution separated from the bamboo chips by a heat exchange system or waste heat; 8) subjecting the concentrated solution to alkanol precipitation to precipitate xylose by adding methanol, ethanol
  • a method for producing xylose as a raw material of gum from bamboo comprising the steps of 1) removing leaves from bamboo; 2) splitting bamboo culms at a regular interval of 1.5 to 3 mm in a longitudinal direction; 3) cutting the longitudinally-split culms to a length of 10 to 30 mm in a horizontal direction to produce bamboo chips; 4) screening debris and impurities from the cut bamboo chips; 5) water-washing to remove impurities, foreign materials and dust from the cut bamboo chips; 6) subjecting the washed bamboo chips to prehydrolysis using water or steam, followed by addition of a suitable amount of a catalyst depending upon a desired degree of prehydrolysis to facilitate prehydrolysis to dissolve hemicellulose components; 7) introducing the bamboo chips into a digester, and softening and pulping the bamboo chips by high-temperature digestion using a liquid chemical consisting of water, alkali and anthraquinone in a liquor ratio of 3.5 to
  • the present invention is similar to a conventional art in terms of providing a method for producing pulp.
  • the present invention is significantly characterized by the production of xylose from bamboo as a nonwoody plant, extraction of xylose in the prehydrolysis and digestion steps during the production of pulp, and consequently no need for global tree felling and deforestation with provision of remarkably high-quality xylose produced from the bamboo.
  • individual steps for production of xylose from bamboo will be described in more detail.
  • the method for producing dissolving pulp from bamboo includes removal of leaves from bamboo, as a first step.
  • bamboo leaves contain various components unnecessary for the production of pulp, but are substantially less in a quantity of fibers.
  • bamboo leaves may result in increased consumption of chemicals rather than provision of beneficial effects in pulp production. Therefore, elimination of the bamboo leaves is done prior to introduction of bamboo into the production process of the dissolving pulp.
  • bamboo pulp production in accordance with the present invention employs only bamboo culms without inclusion of bamboo leaves.
  • the second step includes splitting of the bamboo culms at a regular interval of 1.5 to 3 mm in a longitudinal direction.
  • the bamboo culms are split into halves, followed by re-splitting of the split bamboo culms into a narrower width.
  • the bamboo culms are split into a width of 1.5 to 3 mm.
  • Nondirectional random splitting of the bamboo may be highly susceptible to disintegration of fibers rather than achieving uniform cutting of the resulting fibers. Consequently, such nondirectional random splitting also weakens the strength of the produced pulp to thereby result in deterioration of the fiber quality.
  • the method of the present invention uses the bamboo material which is processed to have a narrow width by application of multiple vertical splitting.
  • the bamboo material may be collectively cut into small pieces using a multi-blade cutting apparatus.
  • the third step includes horizontal cutting of the longitudinally-split culms to a length of 10 to 30 mm to produce bamboo chips. That is, for production of small-sized bamboo chips and consequently easy filling and packing of the chips into a digester, the bamboo material is also cut into a size of 10 to 30 mm in the horizontal direction using a cutting machine.
  • the fourth step includes screening of debris and impurities from the cut bamboo chips.
  • the fifth step includes water-washing to remove impurities, foreign materials and dust sticking to the bamboo chips.
  • This removal step reduces wasteful and unnecessary consumption of chemicals in the digestion process, and enables to obtain pure pulp, thereby improving the quality of the resulting pulp.
  • hydrolysis is carried out to dissolve hemicellulose while achieving a maximum yield of the dissolving pulp in the bamboo chips.
  • hydrolysis is conventionally carried out as a liquid water or steam phase prehydrolysis, or in the presence of a catalyst such as sulfuric acid.
  • the catalyst that can be used in prehydrolysis may be selected from the group consisting of sulfuric acid, hydrochloric acid, sulfurous acid and formic acid.
  • a liquor ratio i.e. an addition ratio of liquid water+catalyst: bamboo chip is preferably adjusted in a range of 1.5 to 7:1, depending upon a desired degree of hydrolysis.
  • prehydrolysis is carried out at a 1.5 to 7:1 liquor ratio of the water- containing liquor and the bamboo chip. It should be noted that hemicellulose among chemical components of the bamboo during the prehydrolysis step decomposes with evolution of organic acids, and the resulting organic acids lead to hydrolysis of the bamboo.
  • the liquor ratio should be adjusted to an appropriate level depending upon a desired polymerization degree and a desired hydrolysis degree of hemicellulose.
  • the liquor ratio refers to a 1.5 to 7 volume of the aqueous solution (the state where chemicals were dissolved in water if chemicals such as a catalyst were included), assuming that the bamboo chip (based on the oven dry weight) is 1.
  • the purpose of adjusting the liquor ratio to within the above-specified range is to 1) facilitate intimate contact between the bamboo chip and the liquid chemical during reaction of the bamboo chip, and 2) control a degree of the reaction by varying the strength (concentration) of the liquid chemical in contact with the bamboo chip, depending upon the liquor ratio to be established.
  • prehydrolysis temperature and time may be preferably set to a range of 90 to 150 ° C and a range of 60 to 250 min, respectively, even though there may be slight differences depending upon the required quality with decomposition conditions in the prehydrolysis step.
  • the term "oven dry weight” refers to a weight of the pure bamboo chip with exclusion of moisture, because the bamboo chip contains large amounts of moisture.
  • the seventh step includes concentration of the solution separated from the bamboo chips by a heat exchange system or waste heat.
  • the solution concentration is carried out by elevating the temperature to evaporate the water vapor.
  • the eighth step includes precipitation of xylose via alkanol precipitation of the concentrated solution by addition of methanol, ethanol, or a mixture of methanol and ethanol in a 50 to 150% volume of the solution.
  • the ninth step includes separation of the precipitated xylose by a filtration or centrifugation method. That is, filtration or centrifugation is carried out to extract xylose in the precipitated state.
  • the tenth step includes purification of the thus-extracted xylose by acid hydrolysis treatment.
  • acid hydrolysis is carried out to purify xylose.
  • Examples of the acid that can be used in the acid hydrolysis treatment may also include sulfuric acid, hydrochloric acid, and formic acid.
  • the thus-produced xylose is used as a raw material for gum or as a sweetening agent.
  • the present invention is also directed to an extraction method of xylose in the digestion step following the prehydrolysis step.
  • the latter method also follows the same steps 1 to 6 of the former method.
  • the latter method includes different steps from the seventh step to the tenth step.
  • the seventh step includes introducing of the bamboo chips into a digester, and softening and pulping of the bamboo chips by high-temperature digestion using a liquid chemical consisting of water, alkali and anthraquinone in a liquor ratio of 3.5 to 6.0 : 1 (weight ratio of liquid chemical : bamboo).
  • the present invention involves application of a soda-AQ pulping in order to facilitate delignification, and prevent decomposition of alpha- cellulose simultaneously with realization of improved pulp yield.
  • this soda-AQ process is carried out by adding a liquor containing alkali (largely using NaOH), anthraquinone and water in a liquor ratio of 3.5 to 6.0:1, based on the oven dry weight of the bamboo chip.
  • a liquor containing alkali largely using NaOH
  • anthraquinone largely using water
  • a liquor ratio of 3.5 to 6.0:1 based on the oven dry weight of the bamboo chip.
  • an amount of the alkali in terms of
  • Na 2 O added to water is 10 to 30%, and anthraquinone (AQ) is 0.01 to 2%, based on the oven dry weight of the bamboo chip (net weight of the bamboo chip with exclusion of moisture contained therein).
  • the digestion step is carried out at a temperature of 140 to 180 ° C for 90 to 200 min.
  • Such digestion conditions may be adjusted depending upon the quality of pulp to be produced, including a degree of polymerization.
  • the eighth step includes neutralization and precipitation of the digested materials with a supply of carbon dioxide gas to dissolve xylose.
  • the phase separation process is necessary to separate xylose from the mixture because the precipitates obtained in the previous step also contain lignin.
  • Lignin is soluble in organic solvents, whereas hemicellulose and xylose are soluble in aqueous solutions.
  • phase separation the mixture of water, alcohol and methylisobutylketone is added to the resulting precipitates, followed by homogenous mixing and phase separation with appropriate control of a water proportion. Once phase separation occurred, an organic solvent fraction and an aqueous fraction are separated from each other. Finally, the tenth step includes addition of alcohol to the separated aqueous solution to thereby precipitate xylose.
  • the added alcohol is separated and recovered again by distillation.
  • the digester was covered and screwed, followed by hydrolysis at 170 ° C for 90 min. After hydrolysis was complete, the separated solution and wash water were concentrated, followed by precipitation and separation via alkanol precipitation.
  • the washed prehydrolyzed bamboo chips were re-introduced into the digester, to which 16% active alkali (in terms Of Na 2 O) and 0.1% anthraquinone were added. After the liquor ratio was adjusted to 4:1, digestion was carried out at 170 ° C for l20 min.
  • the digestion waste liquor and wash liquid were concentrated, followed by neutralization and precipitation with an addition of carbon dioxide.
  • Example 2 bamboo treatment and most of conditions were the same as in Example 1, and prehydrolysis conditions were set as follows.
  • the invention allows efficient use of natural resources by recovering xylose generated as a byproduct in a process of producing dissolving pulp from bamboo that do not significantly influence the environment and, at the same time, can be stably supplied as a raw material, and using the recovered xylose as high- value added resources. Also, the invention allows recovery of xylose at significantly lower costs, as compared to a conventional method of producing xylose from wood or pulp. In particular, management of xylose contained in the prehydrolyzate liquor fraction and the digestion waste liquor via the separate process enables selective application of the recovered xylose depending upon consideration of efficient and economic utilization of resources.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

L'invention concerne un procédé de production de xylose à partir de bambous, et plus particulièrement un procédé de production de xylose à partir de bambous qui apporte une solution aux problèmes économiques et environnementaux de l'art antérieur et qui est utilisé pour récupérer du xylose en tant que ressource à partir d'hémicellulose dissoute par l'intermédiaire d'étapes de préhydrolyse et de digestion d'un procédé de production de pâte pour transformation chimique de haute qualité. L'invention permet ainsi d'utiliser de manière efficace des ressources naturelles par récupération de xylose généré en tant que sous-produit dans un procédé de production de pâte pour transformation chimique à partir de bambous sans danger pour l'environnement, le xylose pouvant dans un même temps être fourni de manière stable en tant que matière première, et le xylose récupéré pouvant être utilisé en tant que ressource à forte valeur ajoutée. L'invention permet également de récupérer du xylose à des coûts significativement réduits par comparaison aux coûts de production de xylose à partir de bois ou de pâte.
PCT/KR2006/001337 2006-03-09 2006-04-12 Procédé de production de xylose à partir de bambous Ceased WO2007102638A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2006-0022009 2006-03-09
KR1020060022009A KR100638607B1 (ko) 2006-03-09 2006-03-09 대나무를 이용하여 생산하는 자일로스 생산방법

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102978993A (zh) * 2012-11-26 2013-03-20 四川银鸽竹浆纸业有限公司 竹纤维溶解浆及其生产工艺
WO2016112134A1 (fr) * 2015-01-07 2016-07-14 Virdia, Inc. Méthodes d'extraction et de conversion de sucres hémicellulosiques
CN106906262A (zh) * 2017-03-01 2017-06-30 四川金象赛瑞化工股份有限公司 一种竹子汽爆法连续提取木糖的方法
US9963673B2 (en) 2010-06-26 2018-05-08 Virdia, Inc. Sugar mixtures and methods for production and use thereof
US9976194B2 (en) 2011-10-10 2018-05-22 Virdia, Inc. Sugar compositions
US10240217B2 (en) 2010-09-02 2019-03-26 Virdia, Inc. Methods and systems for processing sugar mixtures and resultant compositions
CN110904710A (zh) * 2019-11-06 2020-03-24 福建省青山纸业股份有限公司 一种竹浆粕制备工艺
CN110983848A (zh) * 2019-11-06 2020-04-10 福建省青山纸业股份有限公司 一种竹本色浆制备工艺
US10760138B2 (en) 2010-06-28 2020-09-01 Virdia, Inc. Methods and systems for processing a sucrose crop and sugar mixtures
CN111943994A (zh) * 2020-07-02 2020-11-17 上海昶法新材料有限公司 利用溶解浆预蒸煮废液制备木糖的方法
US10876178B2 (en) 2011-04-07 2020-12-29 Virdia, Inc. Lignocellulosic conversion processes and products
US11091815B2 (en) 2015-05-27 2021-08-17 Virdia, Llc Integrated methods for treating lignocellulosic material
US11965220B2 (en) 2012-05-03 2024-04-23 Virdia, Llc Methods for treating lignocellulosic materials

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130137568A (ko) * 2012-06-07 2013-12-17 단국대학교 산학협력단 바이오매스 처리를 위한 전처리 과정과 분리 과정의 동시 진행 방법 및 이를 이용하여 정제되는 바이오 케미컬

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JPS62148425A (ja) * 1985-12-20 1987-07-02 Mitsutoyo:Kk 笹の葉および稈から薬効物質を製造する方法
KR100547492B1 (ko) * 2005-06-30 2006-01-31 이권혁 대나무를 이용하여 생산하는 펄프의 제조방법과 그 펄프 및그 지류 제조방법
KR100547491B1 (ko) * 2005-04-27 2006-01-31 이권혁 대나무를 이용하여 생산하는 섬유용 펄프의 제조방법 및 그 펄프

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62148425A (ja) * 1985-12-20 1987-07-02 Mitsutoyo:Kk 笹の葉および稈から薬効物質を製造する方法
KR100547491B1 (ko) * 2005-04-27 2006-01-31 이권혁 대나무를 이용하여 생산하는 섬유용 펄프의 제조방법 및 그 펄프
KR100547492B1 (ko) * 2005-06-30 2006-01-31 이권혁 대나무를 이용하여 생산하는 펄프의 제조방법과 그 펄프 및그 지류 제조방법

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9963673B2 (en) 2010-06-26 2018-05-08 Virdia, Inc. Sugar mixtures and methods for production and use thereof
US10752878B2 (en) 2010-06-26 2020-08-25 Virdia, Inc. Sugar mixtures and methods for production and use thereof
US10760138B2 (en) 2010-06-28 2020-09-01 Virdia, Inc. Methods and systems for processing a sucrose crop and sugar mixtures
US10240217B2 (en) 2010-09-02 2019-03-26 Virdia, Inc. Methods and systems for processing sugar mixtures and resultant compositions
US11667981B2 (en) 2011-04-07 2023-06-06 Virdia, Llc Lignocellulosic conversion processes and products
US10876178B2 (en) 2011-04-07 2020-12-29 Virdia, Inc. Lignocellulosic conversion processes and products
US9976194B2 (en) 2011-10-10 2018-05-22 Virdia, Inc. Sugar compositions
US10041138B1 (en) * 2011-10-10 2018-08-07 Virdia, Inc. Sugar compositions
US11965220B2 (en) 2012-05-03 2024-04-23 Virdia, Llc Methods for treating lignocellulosic materials
CN102978993A (zh) * 2012-11-26 2013-03-20 四川银鸽竹浆纸业有限公司 竹纤维溶解浆及其生产工艺
US11078548B2 (en) 2015-01-07 2021-08-03 Virdia, Llc Method for producing xylitol by fermentation
WO2016112134A1 (fr) * 2015-01-07 2016-07-14 Virdia, Inc. Méthodes d'extraction et de conversion de sucres hémicellulosiques
US11091815B2 (en) 2015-05-27 2021-08-17 Virdia, Llc Integrated methods for treating lignocellulosic material
CN106906262A (zh) * 2017-03-01 2017-06-30 四川金象赛瑞化工股份有限公司 一种竹子汽爆法连续提取木糖的方法
CN106906262B (zh) * 2017-03-01 2023-07-21 四川金象赛瑞化工股份有限公司 一种竹子汽爆法连续提取木糖的方法
CN110904710A (zh) * 2019-11-06 2020-03-24 福建省青山纸业股份有限公司 一种竹浆粕制备工艺
CN110983848A (zh) * 2019-11-06 2020-04-10 福建省青山纸业股份有限公司 一种竹本色浆制备工艺
CN111943994A (zh) * 2020-07-02 2020-11-17 上海昶法新材料有限公司 利用溶解浆预蒸煮废液制备木糖的方法
CN111943994B (zh) * 2020-07-02 2022-02-01 上海昶法新材料有限公司 利用溶解浆预蒸煮废液制备木糖的方法

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