CN100513680C - Paper pulp making technology by biological catalytic cracking method - Google Patents
Paper pulp making technology by biological catalytic cracking method Download PDFInfo
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- CN100513680C CN100513680C CNB2007100621399A CN200710062139A CN100513680C CN 100513680 C CN100513680 C CN 100513680C CN B2007100621399 A CNB2007100621399 A CN B2007100621399A CN 200710062139 A CN200710062139 A CN 200710062139A CN 100513680 C CN100513680 C CN 100513680C
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Abstract
The present invention relates to one kind of paper pulp making biologically catalyzed degradation process. Paper pulp material after being wetted with ozone water is biologically catalyzed degraded under the action of the composite biologically catalyzed degrading agent comprising whiterot fungus, cellulose, pectase, yeast and water, so as to produce slurry. The process has a production period as short as 2 hr, produces no organic compound and sewage, and is environment friendly, simple and low in power consumption.
Description
Technical field
The present invention relates to a kind of paper pulp making technology, particularly relate to a kind of bio-pulping process.Particularly, the present invention utilizes a kind of compound bio to urge to separate agent that pulping raw material is carried out biology to urge and separating to produce slurry.
Background technology
The chemical pulping cycle is short, production scale is big, adaptability to raw material is strong, is suitable for modern production.Therefore, present paper mode is most of still based on chemical method.Wherein common with soda pulping process and chlorine bleach again, promptly in heating, add and depress with caustic soda boiling paper making raw material, complicated compositions such as lignin in the raw material, polysaccharide, pectin, protein are dissolved in the caustic lye of soda, separate with cellulose and obtain paper pulp fiber; Adopt chlorine, hypochlorite, chlorine dioxide etc. to bleach and obtain bleached pulp.The distinct disadvantage of chemical pulping is chemical consumption and energy consumption height, can produce a large amount of black liquid and chlorine-contained wastewater in slurrying and bleaching process, and waste water has high COD and BOD loading, and whole process of production not only water consumption is big, and pollutes very serious.Therefore, pollution abatement, minimizing water consumption are the matters of utmost importance that paper industry needs to be resolved hurrily always.
200610042014, No. 200610044632 patent applications disclose the cold soaking and mechanical pulping process of grass and wooden class raw material respectively, above-mentioned patent application is grass or the wooden class raw material that is ground into silk to be added cold soaking steeped 1～4 hour in the immersion soup of being made up of sodium sulfite, NaOH, cold soaking auxiliary agent etc., behind the washing shove, obtain paper pulp with the bleaching of hydrogen peroxide alkali lye.Said method only is to pulverize slurrying with cold soaking and mechanical to have replaced digesting technoloy, and the black liquid of generation can recycle certain hour, does not fundamentally eliminate the influence of chemicals, still belongs to chemical pulping.
Because microorganism can change into CO with three big compositions in the plant fiber material effectively
2, H
2Matter is planted in O and corruption, process has environment friendly, and capable of reducing energy consumption and chemicals usage, therefore, biotechnology is acted on pulping and papermaking processes, replace chemistry route or part chemistry route to carry out slurrying, do not produce organic compound with biological approach, help overcoming the shortcoming that chemical method exists, be subjected to favor widely.
Sweden papermaking research institute (STFI) has taken the lead in carrying out the work of this respect, utilizes whiterot fungi that wood chip is carried out preliminary treatment, finds that pretreated wood chip carries out defibrination and can cut down the consumption of energy significantly.Late 1990s, whiterot fungi that Japanese kobe steel is used decomposes timber at normal temperatures and pressures, has successfully produced high-quality paper pulp.Biological pulping method is the very big challenge to traditional pulping process, yet, because the cycle of bio-pulping is oversize, need 30 days approximately, add the screening difficulty of whiterot fungi, this technology also is difficult to realize suitability for industrialized production at present.
1986, the Wei Kaili of Finland found to utilize the zytase pulp treatment, can improve the bleachability of paper pulp, reduces the consumption of chloride chemicalss such as chlorine, chlorine dioxide, helps developing chlorine-free bleaching.But because zytase can not the direct oxidation lignin, can only usually improve the bleachability of paper pulp by the hydrolysis xylan, be limited for removing of lignin.
Also have in the world and much carry out the report that the delignified pulp lignin is handled research.EP408,803, DE3,636,208, patent such as WO92/20857 all reported and utilized laccase and chlorine bleaches bleached pulp, to reduce the method for chemicals consumption.But still contain organochlorine compound in the waste water that above method produced.
U.S. Pat 5,545,544 disclose a kind of method of utilizing whiterot fungi that paper pulp especially chemical pulp is bleached, but its pulp treatment needs the long time, and the bacterial classification amount of use is also bigger, and effect is also not obvious.
Chinese patent 00130853x discloses a kind of method of utilizing biotechnology paper pulp to be carried out total chlorine free bleaching, utilize a kind of microorganism whiterot fungi that can xylogen degradation that paper pulp is bleached preliminary treatment earlier, re-using hydrogen peroxide bleaches, advantage is that the whiteness of paper pulp is improved, and the processing time also shortens dramatically.
Yet, above technology all be adopt biological method to paper pulp particularly chemical pulp bleach processing, purpose is to reduce the consumption of chemical bleaching agent.But owing to employed bacterium, enzyme are not the residual lignin that directly acts in the paper pulp, just increase the stripping of lignin by hydrolyzed hemicellulose, to improve the accessibility that chemistry floats agent, following bleaching still needs to use more chemical bleaching agent, can't fundamentally eliminate the generation that pulp bleaching effluent pollutes, not tackle the problem at its root.
Many researchs reports about Biological Pretreatment chemical pulping aspect are arranged in recent years, carry out sulfate or sulphite boiling after comprising Biological Pretreatment.Result of study shows: Biological Pretreatment can shorten digestion time, helps the production of low kappa number chemical pulp, also follow-up sulphite boiling is become very favourable simultaneously.With without Biological Pretreatment relatively, the Kappa number of Biological Pretreatment chemical pulping can descend 21～48%, and paper pulp yield changes little.Research also shows: carried out Biological Pretreatment in the past earlier in chemical pulping, and can reduce the hardness of paper pulp under the constant situation of chemicals consumption, or reduce the consumption of chemicals and the consumption of the energy under identical hardness.
200310114935.4 patent application discloses a kind of bio-pulping process, be with the xylan enzyme cotton fiber to be carried out preliminary treatment to obtain slurry, use again under alkali-hydrogenperoxide steam generator normal temperature and pressure and bleach, but the material that this process is used only limits to cotton fiber, the limitation of producing is very big, and using value is limited.
01107892.8 patent disclosure Biological Pretreatment prepare the technology of chemical mechanical straw pulp, be with the forage raw material behind boiling sterilization, carry out microbial pretreatment with wood fibre degraded microorganism such as wooden rainbow conk, glossy ganoderma etc., after separating by sodium sulfite-sodium hydroxide solution chemical presoaking and machinery mill, chlorine-free bleaching obtains paper pulp again.Advantage is that the cycle of biological treatment is shorter, but its essence of technology only is that forage has been made microbial pretreatment, rather than thoroughly make paper pulp with microorganism, and still there is the step of carrying out chemical presoaking with caustic soda in the technology, be a kind of biology-chemical pulping method.
02125571.7 patent disclosure a kind of biofermentation pulping process, be to use actinomyces that paper making raw material is fermented, and utilize the fermentation heat release that raw material is heated up, the control temperature after about 15 days, obtains paper pulp 70～80 ℃ of fermentations.This method is a kind of biological pulping method completely, but shortcoming is that the production cycle is long, still can produce a large amount of fermentation waste waters in the production process.
Summary of the invention
The purpose of this invention is to provide a kind of paper pulp making technology by biological catalytic cracking method, urge by compound bio and separate agent and pulping raw material is carried out biology urge and separating, produce slurry with thorough decomposition lignin.
Paper pulp making technology by biological catalytic cracking method of the present invention be with pulping raw material with Ozone Water wetting after, add compound bio and urge and separate agent and carry out biology and urge and separating to produce slurry.
Concrete pulping process is: the pulping raw material of pulverizing is joined in the Ozone Water that is equivalent to its 2～3 times of weight, urge the consumption of separating agent to add compound bio urging and separate agent according to adding 0.02～0.05 parts by weight compound bio in per 100 parts by weight pulping raw materials again, after mixing, fully soak infiltration, be warming up to 80～120 ℃, biology obtains slurry after urging and separating 0.5～2h.
Wherein, described compound bio is urged and is separated agent and mixed by following materials based on weight and form:
Whiterot fungi 1～2
Cellulase 1～2
Pectase 1～2
Yeast 2～5
Water 5～10.
The Ozone Water that the present invention uses is now with the current fresh saturated Ozone Water, by ozone generator ozone is directly fed and makes after reaching capacity in the water.
Among the present invention, in pulping raw material, add Ozone Water and compound bio urge separate agent after, urging of obtaining should be separated liquid and soak more than the 1h, separate the inside that agent can fully be penetrated into pulping raw material to guarantee that compound bio is urged, lignin is thoroughly degraded.Owing to will urge and separate liquid and be warmed up to and urge the time of separating temperature also to need about 1h, therefore, the present invention can will soak and two steps that heat up lump together and carry out, separate liquid and add in the process that heats up in the rotary spherical digester will urging, can realize the purpose of soaking, thereby needn't soak specially, save the time.
Whiterot fungi is the fungi that belongs to basidiomycetes subclass Aphyllophorales, gains the name because of dote is white in color, the timber main component of can degrading cellulose, lignin and hemicellulose.Whiterot fungi to lignin to remove resolution ratio high, and the cellulose in the paper pulp fiber is decomposed few, so paper pulp yield is up to 60%.Yet long degradation cycle makes whiterot fungi slurrying lose the meaning of suitability for industrialized production, has restricted the development of whiterot fungi pulping technique.The present invention utilizes whiterot fungi and other various biology enzymes to carry out composite, having filtered out a kind of brand-new compound bio urges and separates agent, this biology is urged and is separated the biology that agent improved whiterot fungi greatly and urge the ability of separating, and the time of decomposing lignin is shortened in the 2h, makes and utilizes whiterot fungi slurrying to become possibility.
The present invention has also screened such as Phanerochaete chrysosporium (Phanerochaete chrysosproium), penetrate arteries and veins bacterium (Phlebiaradiate), the bacterium (Pleurotus) of picking up the ears, flat mushroom (Pleurotus ostreatus), rainbow conk (Trametes versicolor), colloid serpula lacrymans (Merulius tremellosus), Coriolus multiple whiterot fungis such as (Coriolus versicolor) prepares compound bio and urges and separate agent and test, the result shows equal can getting a desired effect, and illustrates that compound bio of the present invention is urged to separate agent and do not have special screening requirements for the kind of whiterot fungi.
Paper pulp making technology of the present invention does not have special requirement for pulping raw material yet, and general careless class pulping raw material such as wheat straw, straw, straw, kaoliang stalk, reed, Chinese alpine rush, sheep Hu grass etc. and various wood material such as pine, poplar, birch etc. all can use.Just, suitably adjust compound bio and urge proportioning and the consumption of separating agent, and change the biological time and the temperature of separating of urging, urge with the best biology that reaches various pulping raw materials and separate effect and get final product according to the difference of pulping raw material.
Cracking lignin is the key technology of paper-making pulping to extract cellulose.In traditional chemical pulping process, when utilizing chemical reaction to open lignin, also produced a large amount of organic compounds.These organic compounds are washed from paper making pulp remove, can produce a large amount of wash waters, not only caused the serious environmental pollution, and the sewage disposal difficulty is big, expense is high.The present invention is under the Ozone Water atmosphere, adopting compound bio to urge to separate agent that pulping raw material is carried out biology urges and separating, with thorough decomposition-reduction Cheng Shui of lignin and carbon dioxide, do not produce organic compound in the degradation process, slurry does not need just to wash and can enter following operation, does not produce sewage, and industrial water just can recycle through simple precipitation process, thoroughly stop pollution, reached the target of environmental protection.
Biology of the present invention urges the solution pulping process only to need pulping raw material to be urged separate about 2h to be paper making pulp, and with short production cycle, technology is simple, is convenient to promote, and simultaneous adaptation is in large, medium and small enterprise implement.
Biology of the present invention urges solution pulping process energy consumption little, and production cost is low.With the preparation straw pulp is example, comparable chemical pulping water saving 90%, and power saving 50～60% economizes on coal 50～60%, save raw material 30%, and pulping rate is brought up to more than 60% by 40% of chemical method, and the overall manufacturing cost has reduced by 40% approximately.
The specific embodiment
Embodiment 1
100g whiterot fungi, 100g cellulase, 100g pectase and 200g yeast are joined in the 500mL water, and mixing and stirring is made compound bio and is urged that to separate agent standby.
Get 2t sheep grass recklessly, all being cut to length is 2～5cm, adds 5t and just feeds the fresh Ozone Water that ozone gas is prepared with ozone generator, the compound bio that adds above-mentioned preparation is again urged and is separated agent, after stirring, add in the rotary spherical digester, material is soaked on intensification limit, limit, behind about 1h, to urge and separate liquid and be warming up to 100 ℃, urge under this temperature separate reaction 1h after, discharging, slurry is removed moisture behind minute silk defibrination, obtain the 1.1t dry pulp.
Embodiment 2
200g whiterot fungi, 120g cellulase, 200g pectase and 400g yeast are joined in the 800mL water, and mixing and stirring is made compound bio and is urged that to separate agent standby.
Get the 2t poplar, be cut into the thick wood chip of 2cm, add in the fresh Ozone Water of 4t, the compound bio that adds above-mentioned preparation is again urged and is separated agent, after stirring, add in the rotary spherical digester, material is soaked on intensification limit, limit, behind about 1h, to urge and separate liquid and be warming up to 120 ℃, urge under this temperature separate reaction 1.5h after, discharging, slurry is removed moisture behind minute silk defibrination, obtain the 1.4t dry pulp.
Embodiment 3
120g whiterot fungi, 150g cellulase, 120g pectase and 250g yeast are joined in the 1000mL water, and mixing and stirring is made compound bio and is urged that to separate agent standby.
The reed of 2t being cut into 2～5cm length joins in the fresh Ozone Water of 6t, the compound bio that adds above-mentioned preparation is again urged and is separated agent, after stirring, add in the rotary spherical digester, material is soaked on intensification limit, limit, behind about 1h, to urge and separate liquid and be warming up to 110 ℃, urge under this temperature separate reaction 0.5h after, discharging, slurry is removed moisture behind minute silk defibrination, obtain the 1.25t dry pulp.
Embodiment 4
150g whiterot fungi, 180g cellulase, 150g pectase and 350g yeast are joined in the 600mL water, and mixing and stirring is made compound bio and is urged that to separate agent standby.
Getting 2t all cuts in the fresh Ozone Water of wheat straw adding 5t of 2～5cm, the compound bio that adds above-mentioned preparation is again urged and is separated agent, after stirring, add in the rotary spherical digester, material is soaked on intensification limit, limit, behind about 1h, to urge and separate liquid and be warming up to 90 ℃, urge under this temperature separate reaction 1.5h after, discharging, slurry is removed moisture behind minute silk defibrination, obtain the 1.15t dry pulp.
Embodiment 5
180g whiterot fungi, 120g cellulase, 180g pectase and 300g yeast are joined in the 800mL water, and mixing and stirring is made compound bio and is urged that to separate agent standby.
Get the 2t pine, be cut into the thick wood chip of 2cm, add in the fresh Ozone Water of 4t, the compound bio that adds above-mentioned preparation is again urged and is separated agent, after stirring, add in the rotary spherical digester, material is soaked on intensification limit, limit, behind about 1h, to urge and separate liquid and be warming up to 120 ℃, urge under this temperature separate reaction 1h after, discharging, slurry is removed moisture behind minute silk defibrination, obtain the 1.5t dry pulp.
Embodiment 6
150g whiterot fungi, 200g cellulase, 150g pectase and 450g yeast are joined in the 600mL water, and mixing and stirring is made compound bio and is urged that to separate agent standby.
Get the 2t kaoliang stalk, be cut to 2～5cm, the compound bio of adding fresh Ozone Water of 5t and above-mentioned preparation is urged and is separated agent, after stirring, add in the rotary spherical digester, material is soaked on intensification limit, limit, behind about 1h, will urge and separate liquid and be warming up to 120 ℃, urge under this temperature separate the reaction 1.5h after, discharging, slurry is removed moisture behind minute silk defibrination, obtain the 0.95t dry pulp.
Claims (2)
1, a kind of paper pulp making technology by biological catalytic cracking method, be that the pulping raw material that will pulverize joins in the Ozone Water that is equivalent to its 2～3 times of weight, urge the consumption of separating agent to add compound bio urging and separate agent according to adding 0.02～0.05 parts by weight compound bio in per 100 parts by weight pulping raw materials again, after mixing, fully soak infiltration, be warming up to 80～120 ℃, biology obtains slurry after urging and separating 0.5～2h, wherein, described compound bio is urged and is separated agent and mixed by following materials based on weight and form:
Whiterot fungi 1～2
Cellulase 1～2
Pectase 1～2
Yeast 2～5
Water 5～10.
2, paper pulp making technology by biological catalytic cracking method according to claim 1 is characterized in that described Ozone Water is the on-the-spot saturated Ozone Water that absorbs preparation.
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Cited By (1)
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| CN103321076A (en) * | 2013-06-21 | 2013-09-25 | 十堰润龙实业有限公司 | Cellulose biological extraction method combining saccharomycetes separation technology with gloeophyllum trabeum decomposition technology |
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| CN101608411B (en) * | 2008-06-19 | 2010-12-08 | 杨黎明 | Process for manufacturing paper pulp by using oxidation-reduction potential water and biological enzyme |
| CN102345244A (en) * | 2010-08-05 | 2012-02-08 | 王凤忠 | Pulping and papermaking process through multiple-composition biological enzyme method |
| CN102517944A (en) * | 2011-12-21 | 2012-06-27 | 张健 | Method for producing paper pulp through biodegrading lignin by white rot fungi |
| CN103215837B (en) * | 2013-04-19 | 2015-05-27 | 新疆国力源投资有限公司 | Method for preparing unbleached pulp and producing high-strength corrugated paper from cotton stalk |
| CN103556515B (en) * | 2013-09-17 | 2016-06-29 | 邵道德 | A kind of paper-making pulping process |
| CN104179055B (en) * | 2014-07-18 | 2016-03-09 | 刘秀平 | Grass fiber bio-separation compound formulation |
| CN104695260B (en) * | 2015-02-15 | 2016-06-15 | 李风志 | A kind of dissociation modified plant fibers clean pulping process |
| CN104894912B (en) * | 2015-06-08 | 2016-09-14 | 浙江华川实业集团有限公司 | A kind of paper technology |
| CN106283800A (en) * | 2016-09-29 | 2017-01-04 | 金华盛纸业（苏州工业园区）有限公司 | A kind of method of biological pretreatment slurry before defibrination |
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| CN110438835A (en) * | 2019-07-24 | 2019-11-12 | 浙江景兴纸业股份有限公司 | A method of improving high yield pulp fiber flexibility |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103321076A (en) * | 2013-06-21 | 2013-09-25 | 十堰润龙实业有限公司 | Cellulose biological extraction method combining saccharomycetes separation technology with gloeophyllum trabeum decomposition technology |
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