CN109183484B - Pulping process using gramineous plants as raw materials - Google Patents
Pulping process using gramineous plants as raw materials Download PDFInfo
- Publication number
- CN109183484B CN109183484B CN201811016270.6A CN201811016270A CN109183484B CN 109183484 B CN109183484 B CN 109183484B CN 201811016270 A CN201811016270 A CN 201811016270A CN 109183484 B CN109183484 B CN 109183484B
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- cooking
- enzyme
- liquor
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- liquid
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Classifications
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- 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
-
- 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
- D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
-
- 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
- D21C3/26—Multistage processes
-
- 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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
Abstract
The invention relates to a pulping process using gramineous plants as raw materials, belonging to the field of papermaking. A pulping process using gramineous plants as raw materials comprises a secondary cooking step, wherein cooking liquor used in primary cooking comprises the following components in percentage by mass: 5-8% of sodium hydroxide, 0.5-1.0% of sodium sulfite, 1-2.5% of sodium sulfide, 0.3-0.5% of anthraquinone, 0.02-0.1% of sodium dodecyl sulfate and the balance of water; the cooking liquor used for the second cooking comprises enzyme liquor I and enzyme liquor II according to the mass ratio of 1-3: 1, and (b) a mixed enzyme solution. The process has the advantages that the alkali consumption and the enzyme consumption are both small, the waste discharge amount is reduced, the mixed enzyme cooking liquor can be repeatedly utilized, and the environment is protected; meanwhile, the process has short cooking time and good cooking effect.
Description
Technical Field
The invention relates to a pulping process using gramineous plants as raw materials, belonging to the field of papermaking.
Background
The papermaking production is divided into two basic processes of pulping and papermaking. The pulping process uses methods including mechanical, chemical or a combination of both to break down the plant fiber material into a natural color pulp or a bleached pulp. Chemical pulping is a common method, and the principle is that a chemical liquid is used for cooking a material sheet, a chemical agent reacts with lignin in the material sheet at a high temperature to generate a water soluble substance, so that fibers are separated and dispersed into pulp, and the chemical pulping method is divided into alkaline pulping and acid pulping. The chemical pulping can keep the natural length of fiber approximately, remove most of lignin and produce high-grade soft paper with high strength, but the defects are obvious, the yield is low, the pollution is large, the cooking residual liquid contains a large amount of alkaline substances and the environment is polluted. Gramineae is one of the raw materials commonly used for papermaking, has the characteristics of short production period, wide resource distribution and the like compared with wood raw materials, and is a cheap and easily-obtained excellent raw material.
Disclosure of Invention
The invention aims to provide a pulping process using gramineae as a raw material, which uses cheap gramineae as the raw material and adopts a mode of combining chemical liquid medicine and biological enzyme liquid medicine to carry out pulping so as to solve the problems of large pollution and difficult recovery of pulping residual liquid.
A pulping process using gramineous plants as raw materials comprises a secondary cooking step,
the cooking liquor used for the first cooking consists of the following components in percentage by mass: 5-8% of sodium hydroxide, 0.5-1.0% of sodium sulfite, 1-2.5% of sodium sulfide, 0.3-0.5% of anthraquinone, 0.02-0.1% of sodium dodecyl sulfate and the balance of water;
the cooking liquor used for the second cooking comprises enzyme liquor I and enzyme liquor II according to the mass ratio of 1-3: 1, wherein the enzyme solution I is raka lactuca (a)Irpex lacteus) After fermentation of CGMCC3.275, obtaining clarified crude enzyme liquid by separating thalli; the enzyme solution II is Inonotus crassipes (A), (B)Coriolopsis gallica) After fermentation of CICC2689, the clarified crude enzyme solution is obtained by separating thalli.
The gramineous plants of the present invention are preferably reed, wheat straw, triarrhena indica, etc.
Preferably, the cooking liquor used for the second cooking further comprises an enzyme stabilizer, and the concentration of the enzyme stabilizer is 0.5-2 mmol/L.
Preferably, the cooking liquor used for the second cooking also comprises water, and the using amount of the water is 60-300 times of that of the mixed enzyme liquor.
Preferably, the first cooking process is as follows: and (3) performing primary cooking according to the liquor ratio of 1: 3-1: 6, wherein the cooking temperature is 70-100 ℃, and the cooking time is 10-30 min.
Preferably, the second cooking process is: and (3) performing secondary cooking according to the liquid ratio of 1: 4-1: 8, wherein the cooking temperature is 55-70 ℃, and the cooking time is 10-30 min.
Preferably, the cooking liquor used in the second cooking is prepared from enzyme liquor I and enzyme liquor II according to the mass ratio of 1.3-2.5: 1, an enzyme stabilizer and water, wherein the concentration of the enzyme stabilizer in the cooking liquor is 0.5-2 mmol/L, and the using amount of the water is 100-200 times of that of the mixed enzyme solution.
Preferably, the method comprises the following process steps:
s1 preparing materials, namely cutting the gramineous plant raw materials into pieces and removing impurities;
s2, primary cooking: carrying out primary cooking according to the liquid ratio of 1: 3-1: 6, wherein the cooking temperature is 70-100 ℃, the cooking time is 10-30 min, and washing with water;
s3 secondary cooking: and (3) performing secondary cooking according to the liquid ratio of 1: 4-1: 8, wherein the cooking temperature is 55-70 ℃, the cooking time is 10-30 min, and washing with water.
The invention has the beneficial effects that: the method comprises two cooking steps, wherein the first cooking step adopts the sword-process pulping cooking liquor, the cooking liquor is used for realizing the internal permeation of the raw material, so that the raw material is swelled, and partial components such as hybrid cells, hemicellulose and the like are dissolved. And then, performing secondary cooking by using the mixed enzyme liquid, and decomposing lignin by using biological enzyme to disperse the fibers into single fibers. The process has the advantages that the alkali consumption and the enzyme consumption are both small, the waste discharge amount is reduced, the mixed enzyme cooking liquor can be repeatedly utilized, and the environment is protected; meanwhile, the process has short cooking time and good cooking effect.
Detailed Description
Enzyme solutions I described in the examples: culture medium: wort 1.0L, agar 15.0g, natural pH 12 Brix. Raking bacteria of milk white (Irpex lacteus) Inoculating CGMCC3.275 strain on slant culture medium, culturing in constant temperature incubator at 26 deg.C for 4 days, transferring to culture medium, and culturing at 26 deg.C for 3 days to obtain fermentation liquid; filtering the fermentation liquor with 0.22 micron filter membrane for sterilization to obtain the final product.
Enzyme solution II described in the examples: culture medium: 1.0L of potato extract, 20.0g of glucose and 15.0g of agar, and the pH is natural. Potato extract: removing peel of potato 200g, cutting into small pieces, adding water 1.0L, boiling for 30min, filtering to remove potato pieces, and adding filtrate to 1.0L. Prepared from Inonotus scaber (Koch.), (Coriolopsis gallica) Inoculating the CICC2689 strain on a slant culture medium, culturing for 4 days in a constant-temperature incubator at 28 ℃, then transferring to the culture medium, and culturing for 3 days at 28 ℃ to obtain a fermentation liquid; filtering the fermentation liquor with 0.22 micron filter membrane for sterilization to obtain the final product.
In the embodiment, the cooking liquor used for the second cooking is prepared from an enzyme liquor I and an enzyme liquor II according to the mass ratio of 1.3-2.5: 1, an enzyme stabilizer and water, wherein the concentration of the enzyme stabilizer in the cooking liquor is 0-2 mmol/L, and the using amount of the water is 100-200 times of that of the mixed enzyme solution.
Example 1
S1, preparing materials, namely cutting the reed raw material into pieces and removing impurities;
s2, primary cooking: carrying out primary cooking according to a liquor ratio of 1:4, wherein the cooking temperature is 80 ℃, the cooking time is 15min, and washing with water, wherein the cooking liquor comprises the following components in percentage by mass: 6% of sodium hydroxide, 0.5% of sodium sulfite, 1.6% of sodium sulfide, 0.5% of anthraquinone, 0.03% of sodium dodecyl sulfate and the balance of water;
s3 secondary cooking: and (2) carrying out secondary cooking according to a liquid ratio of 1:5, wherein the cooking temperature is 60 ℃, the cooking time is 15min, and washing is carried out, and the used cooking liquid is prepared from enzyme liquid I and enzyme liquid II according to a mass ratio of 1.3: 1 and water, wherein the amount of the water is 150 times of that of the mixed enzyme solution.
Example 2
S1, preparing materials, namely cutting the reed raw material into pieces and removing impurities;
s2, primary cooking: carrying out primary cooking according to a liquid ratio of 1:4, wherein the cooking temperature is 75 ℃, the cooking time is 20min, and washing with water, wherein the cooking liquid comprises the following components in percentage by mass: 6% of sodium hydroxide, 0.5% of sodium sulfite, 1.6% of sodium sulfide, 0.5% of anthraquinone, 0.03% of sodium dodecyl sulfate and the balance of water;
s3 secondary cooking: and (2) carrying out secondary cooking according to a liquor ratio of 1:5, wherein the cooking temperature is 55 ℃, the cooking time is 15min, and washing with water, wherein the used cooking liquor is prepared from enzyme liquor I and enzyme liquor II according to a mass ratio of 2.1: 1 and water, wherein the amount of the water is 150 times of that of the mixed enzyme solution.
Example 3
S1, preparing materials, namely cutting the reed raw material into pieces and removing impurities;
s2, primary cooking: carrying out primary cooking according to a liquid ratio of 1:5, wherein the cooking temperature is 85 ℃, the cooking time is 10min, and washing with water, wherein the cooking liquid comprises the following components in percentage by mass: 8% of sodium hydroxide, 0.6% of sodium sulfite, 2% of sodium sulfide, 0.5% of anthraquinone, 0.07% of sodium dodecyl sulfate and the balance of water;
s3 secondary cooking: and (2) carrying out secondary cooking according to the liquid ratio of 1:6, wherein the cooking temperature is 65 ℃, the cooking time is 15min, and washing with water, wherein the used cooking liquid is prepared from enzyme liquid I and enzyme liquid II according to the mass ratio of 1.5: 1, an enzyme stabilizer and water, wherein the concentration of the enzyme stabilizer (glycerol) in the cooking liquor is 1mmol/L, and the using amount of the water is 200 times of that of the mixed enzyme liquid.
Example 4
S1, preparing materials, namely cutting the reed raw material into pieces and removing impurities;
s2, primary cooking: carrying out primary cooking according to a liquid ratio of 1:5, wherein the cooking temperature is 85 ℃, the cooking time is 10min, and washing with water, wherein the cooking liquid comprises the following components in percentage by mass: 8% of sodium hydroxide, 0.6% of sodium sulfite, 2% of sodium sulfide, 0.5% of anthraquinone, 0.07% of sodium dodecyl sulfate and the balance of water;
s3 secondary cooking: and (2) carrying out secondary cooking according to a liquid ratio of 1:8, wherein the cooking temperature is 65 ℃, the cooking time is 15min, and washing with water, wherein the used cooking liquid is prepared from enzyme liquid I and enzyme liquid II according to a mass ratio of 2.3: 1, an enzyme stabilizer and water, wherein the concentration of the enzyme stabilizer (glycerol) in the cooking liquor is 1.5mmol/L, and the using amount of the water is 200 times of that of the mixed enzyme solution.
Example 5
S1 preparing materials, namely cutting the wheat straw raw material and removing impurities;
s2, primary cooking: carrying out primary cooking according to a liquid ratio of 1:3, wherein the cooking temperature is 70 ℃, the cooking time is 15min, and washing with water, wherein the cooking liquid comprises the following components in percentage by mass: 8% of sodium hydroxide, 0.6% of sodium sulfite, 2% of sodium sulfide, 0.5% of anthraquinone, 0.07% of sodium dodecyl sulfate and the balance of water;
s3 secondary cooking: performing secondary cooking according to a liquid ratio of 1:6, wherein the cooking temperature is 55 ℃, the cooking time is 20min, and washing with water, wherein the used cooking liquid is prepared from enzyme liquid I and enzyme liquid II according to a mass ratio of 1.5: 1, an enzyme stabilizer and water, wherein the concentration of the enzyme stabilizer (glycerol) in the cooking liquor is 1.5mmol/L, and the using amount of the water is 100 times of that of the mixed enzyme solution.
Comparative example 1
The procedure of example 1 was repeated, except that all of the enzyme solutions used were enzyme solution I.
Comparative example 2
The procedure of example 1 was repeated, except that all of the enzyme solutions used were enzyme solution II.
TABLE 1
Claims (5)
1. A pulping process using gramineous plants as raw materials is characterized in that the pulping process comprises a secondary cooking step,
the cooking liquor used for the first cooking consists of the following components in percentage by mass: 5-8% of sodium hydroxide, 0.5-1.0% of sodium sulfite, 1-2.5% of sodium sulfide, 0.3-0.5% of anthraquinone, 0.02-0.1% of sodium dodecyl sulfate and the balance of water;
the cooking liquor used for the second cooking comprises enzyme liquor I and enzyme liquor II according to the mass ratio of 1-3: 1, wherein the enzyme solution I is raka lactuca (a)Irpex lacteus) After fermentation of CGMCC3.275, obtaining clarified crude enzyme liquid by separating thalli; the enzyme solution II is Inonotus crassipes (A), (B)Coriolopsis gallica) After fermentation of CICC2689, clear crude enzyme liquid is obtained by separating thalli,
the first cooking process comprises the following steps: performing primary cooking according to the liquid ratio of 1: 3-1: 6, wherein the cooking temperature is 70-100 ℃, and the cooking time is 10-30 min;
the second cooking process comprises the following steps: and (3) performing secondary cooking according to the liquid ratio of 1: 4-1: 8, wherein the cooking temperature is 55-70 ℃, and the cooking time is 10-30 min.
2. The process as claimed in claim 1, wherein the cooking liquor used in the second cooking further comprises an enzyme stabilizer, and the concentration of the enzyme stabilizer is 0.5-2 mmol/L.
3. The process as claimed in claim 1, wherein the cooking liquor used in the second cooking further comprises water, and the amount of the water is 60-300 times of the mixed enzyme liquor.
4. The process as claimed in claim 1, wherein the cooking liquor used in the second cooking is prepared from enzyme liquor I and enzyme liquor II according to a mass ratio of 1.3-2.5: 1, an enzyme stabilizer and water, wherein the concentration of the enzyme stabilizer in the cooking liquor is 0.5-2 mmol/L, and the using amount of the water is 100-200 times of that of the mixed enzyme solution.
5. The process according to claim 1, characterized in that it comprises the following process steps:
s1 preparing materials, namely cutting the gramineous plant raw materials into pieces and removing impurities;
s2, primary cooking: carrying out primary cooking according to the liquid ratio of 1: 3-1: 6, wherein the cooking temperature is 70-100 ℃, the cooking time is 10-30 min, and washing with water;
s3 secondary cooking: and (3) performing secondary cooking according to the liquid ratio of 1: 4-1: 8, wherein the cooking temperature is 55-70 ℃, the cooking time is 10-30 min, and washing with water.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811016270.6A CN109183484B (en) | 2018-09-02 | 2018-09-02 | Pulping process using gramineous plants as raw materials |
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| CN201811016270.6A CN109183484B (en) | 2018-09-02 | 2018-09-02 | Pulping process using gramineous plants as raw materials |
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| CN109183484A CN109183484A (en) | 2019-01-11 |
| CN109183484B true CN109183484B (en) | 2021-05-28 |
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| CN1546787A (en) * | 2003-12-01 | 2004-11-17 | 山东博汇纸业股份有限公司 | Pulping method using vegetation raw material and xylanase |
| CN101748631A (en) * | 2009-12-18 | 2010-06-23 | 华南理工大学 | Efficient and clean puling and bleaching method dissolving alpha-pulp by Chinese alpine rush |
| CN102808362A (en) * | 2011-06-01 | 2012-12-05 | 张仁娟 | Manufacturing method of waterproof and fireproof paper |
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Patent Citations (6)
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| CN1546787A (en) * | 2003-12-01 | 2004-11-17 | 山东博汇纸业股份有限公司 | Pulping method using vegetation raw material and xylanase |
| CN101748631A (en) * | 2009-12-18 | 2010-06-23 | 华南理工大学 | Efficient and clean puling and bleaching method dissolving alpha-pulp by Chinese alpine rush |
| CN102808362A (en) * | 2011-06-01 | 2012-12-05 | 张仁娟 | Manufacturing method of waterproof and fireproof paper |
| CN106221355A (en) * | 2016-07-22 | 2016-12-14 | 景田（上海）环保科技有限公司 | A kind of enzyme waste paper deinking agent |
| CN107287972A (en) * | 2017-07-03 | 2017-10-24 | 晟颐天祥天然纤维科技有限公司 | A kind of preparation method for cleaning reed pulp |
| CN108384723A (en) * | 2018-03-13 | 2018-08-10 | 中国林业科学研究院亚热带林业研究所 | A kind of complex micro organism fungicide preparation method and applications |
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Effective date of registration: 20210511 Address after: 530313 West shop, 2nd floor, complex building 1, Hengxian Hengfu Industrial Co., Ltd. (Liujing modern logistics park), Weiqi Road, industrial park, Liujing Town, Heng County, Nanning City, Guangxi Zhuang Autonomous Region Applicant after: Guangxi hongruitai pulp Co.,Ltd. Address before: 116011 room 2206, 100 Shengli Road, Xigang District, Dalian, Liaoning. Applicant before: DALIAN SHENGDUO EDUCATION CONSULTING Co.,Ltd. |
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