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WO1991011552A1 - Procede de production de pulpes - Google Patents

Procede de production de pulpes Download PDF

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Publication number
WO1991011552A1
WO1991011552A1 PCT/FI1991/000034 FI9100034W WO9111552A1 WO 1991011552 A1 WO1991011552 A1 WO 1991011552A1 FI 9100034 W FI9100034 W FI 9100034W WO 9111552 A1 WO9111552 A1 WO 9111552A1
Authority
WO
WIPO (PCT)
Prior art keywords
enzyme
fibrous material
redox potential
specific energy
energy consumption
Prior art date
Application number
PCT/FI1991/000034
Other languages
English (en)
Inventor
Marja Vaheri
Nina Salama
Kimmo Ruohoniemi
Original Assignee
Enso-Gutzeit Oy
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Enso-Gutzeit Oy filed Critical Enso-Gutzeit Oy
Publication of WO1991011552A1 publication Critical patent/WO1991011552A1/fr

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means

Definitions

  • the present invention relates to mechanical pulp production from a fibrous material.
  • Fibrous material such as whole logs, chips, shavings or pulp ground in a single or several stages, is processed to mechanical pulp mostly by mechanical methods. Friction is availed in the production of mechanical pulp. There, energy is transferred to wood in a compression/decom ⁇ pression process, whereby the internal structure of wood is decomposed by frictional heat, therein allowing the separation of individual fibers from each other.
  • lignin can be modified with the help of a lignin-modifying enzyme as described in the patent publication PCT/EP87/00635.
  • the exemplifying embodiment of the above-mentioned PCT publication makes use of enzymes produced by the white rot fungus Phanerochaete chrysosporium.
  • the Phanerochaete chrysosporium fungus produces a lignin peroxidase enzyme for the purpose of lignin modification.
  • the redox potential is capable of controlling the reaction between the enzyme and lignin.
  • the enzyme modifies the lignin structure in the fibrous material either so as to ease the separa ⁇ tion of the fibers during the mechanical grinding, or alternatively, in the opposite way so as to promote poly- merization, " thereby increasing the strength properties of the fibrous materials.
  • the present invention differs from the above-mentioned PCT publication in that the exempli ⁇ fying embodiment of the PCT publication does not disclose the importance of the redox potential level as the con ⁇ trolling factor in the reaction mechanism between the enzyme and the lignin of the fibrous material for the purpose of reducing specific energy consumption in mechanical pulp refining.
  • the present invention it becomes possible in an economical and simple manner to control the reaction mechanism between the enzyme and lignin toward a desired direction through the adjustment of the redox potential level.
  • the fibrous material was additionally enzyme-treated with a hydrolytic enzyme in a suitable ratio to the treatment an the oxidizing enzyme.
  • the hydrolytic enzyme affects both the hemicellulose and/or cellulose.
  • the invention aims to use an appropriate amount of hydrolytic enzyme so that it acts only on the superficial layer of hemicellulose and/or cellulose thus promoting the separation of fibers from each other during the mechanical refining of pulp.
  • the invention is characterized in that the fibrous material is treated with an enzyme mixture consisting of hydro ⁇ lytic and oxidizing enzymes whose redox potential level is adjusted to a value below 200 mV.
  • the fibrous material is treated with lignin-attacking enzymes produced by, e.g., the white rot fungi and with cellulose and/or hemicellulose attacking enzymes produced by, e.g., the Trichoderma reesei or the Aspergillus species fungi, either alone or in combination with the presence of oxidizing/reducing, antioxidizing or salt chemicals, the savings of specific energy consumption are achieved even with short reaction times while raw material sterilization simultaneously can be avoided.
  • lignin-attacking enzymes produced by, e.g., the white rot fungi and with cellulose and/or hemicellulose attacking enzymes produced by, e.g., the Trichoderma reesei or the Aspergillus species fungi
  • the enzyme treatment in accordance with the invention can be performed for, e.g., whole logs, chips, shavings or pulp ground in a single or several stages.
  • the enzyme function presumes, however, an efficient contact with a maximally large fiber area.
  • the goal of the enzyme treatment is to modify the structure of.the hemicellulose and/or cellulose in the fiber lignin so that the separation of the fibers becomes easier during the mechanical pulp refining.
  • the desired result is achieved by treating the fibrous material with an oxidizing and a hydrolytic enzyme, and adjusting the redox potential with an appropriate oxidizing/reducing chemical.
  • the enzyme used is laccase, hemicellulase, cellulase, pectinase, esterase or a mixture thereof.
  • Appropriate enzymes deserving mentioning are xylanase, cellulase or pectinase enzymes produced by rot fungi or bacteria such as the Tjrametes hirsutus or
  • Trichoderma reesei species Trichoderma reesei species. Temperature during the enzyme treatment can be within the range 10...90 °C, preferably within 40...70 °C while the pH is held within the range 2.0...10.0, preferably within 4.0...8.0 and the redox potential is held below 200 mV, preferably within -100...+100 mV.
  • the invention will be examined in more detail with the help of exemplifying embodiments based on laboratory tests.
  • the pulp was next refined in a 30 cm dia. refiner by Sprout Waldro using a tapering disc clearance.
  • the refin ⁇ ing was performed twice and the specific energy consump ⁇ tion was measured. After each refining run, a sample of 200 g (solids weight) was taken.
  • the samples were analyzed for freeness (CSF) , fiber distribution, fiber length and shive content.
  • CSF freeness
  • the samples were processed into a white-water sheet which was measured for density, tensile strength, tear index, light scatter coefficient, light absorption coefficient and brightness.
  • Test 2 (reference test) : The pulp was not subjected to enzyme treatment but the pulp was simply treated with tap water in conditions similar to those prevailing during the enzyme treatment of Test 1. For the remaining parts, the treatment was analogous to that described above (Test 1) .
  • thermomechanical pulp TMP
  • lignin-modifying and hemicellulase/cellulase-type enzymes were monitored to stay below 200 mV during the reaction.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

L'invention se rapporte à la production de pulpe mécanique à partir d'un matériau fibreux, tel que des grumes entières, des copeaux, des rognures ou de la pulpe broyée en une ou plusieurs étapes. Afin d'abaisser la consommation d'énergie spécifique, le procédé décrit utilise un traitement enzymatique du matériau fibreux, qui consiste à traiter celui-ci au moyen d'un mélange enzymatique composé d'enzymes hydrolytiques et oxydantes dont le niveau du potentiel d'oxydoréduction est réglé sur une valeur inférieure à 200 mV.
PCT/FI1991/000034 1990-02-02 1991-02-01 Procede de production de pulpes WO1991011552A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI900544A FI900544A7 (fi) 1990-02-02 1990-02-02 Menetelmä massan valmistamiseksi
FI900544 1990-02-02

Publications (1)

Publication Number Publication Date
WO1991011552A1 true WO1991011552A1 (fr) 1991-08-08

Family

ID=8529825

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1991/000034 WO1991011552A1 (fr) 1990-02-02 1991-02-01 Procede de production de pulpes

Country Status (2)

Country Link
FI (1) FI900544A7 (fr)
WO (1) WO1991011552A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998031762A1 (fr) * 1997-01-14 1998-07-23 Neste Chemicals Oy Nouvel adhesif pour panneaux en fibre
US6242245B1 (en) 1997-09-26 2001-06-05 Consortium für elektrochemische Industrie GmbH Multicomponent system for modifying, degrading or bleaching lignin or lignin-containing materials, and processes for its use
US6939437B1 (en) 1999-11-19 2005-09-06 Buckman Laboratories International, Inc. Paper making processes using enzyme and polymer combinations
WO2005106110A1 (fr) * 2004-05-03 2005-11-10 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Procede de production mecanique de pate
FR2910500A1 (fr) * 2006-12-22 2008-06-27 Arjowiggins Soc Par Actions Si Procede de fabrication d'un papier calque
CN102234948A (zh) * 2010-04-27 2011-11-09 中国科学院过程工程研究所 秸秆漆酶组合预处理脱木质素的方法
WO2013045782A1 (fr) 2011-09-30 2013-04-04 Arkema France Pretraitement enzymatique de bois dans un procede de fabrication de pate a papier mecanique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE412422B (sv) * 1976-08-27 1980-03-03 Defibrator Ab Sett att framstella fibermassa av lignocellulosahaltigt material
EP0060467A1 (fr) * 1981-03-16 1982-09-22 Albin Dr.-Ing. Eisenstein Préparation de cellulose à partir de bois ou d'autres plantes lignocellulosiques par décomposition microbiologique de la lignocellulose
WO1988003190A1 (fr) * 1986-10-24 1988-05-05 Call Hans Peter Procede de production de cellulose a partir de matieres premieres contenant de la lignine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE412422B (sv) * 1976-08-27 1980-03-03 Defibrator Ab Sett att framstella fibermassa av lignocellulosahaltigt material
EP0060467A1 (fr) * 1981-03-16 1982-09-22 Albin Dr.-Ing. Eisenstein Préparation de cellulose à partir de bois ou d'autres plantes lignocellulosiques par décomposition microbiologique de la lignocellulose
WO1988003190A1 (fr) * 1986-10-24 1988-05-05 Call Hans Peter Procede de production de cellulose a partir de matieres premieres contenant de la lignine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SVENSK PAPPERSTIDNING, No. 8, 1980, L. SAMUELSSON et al., "Influence of fungal treatment on the strength versus energy relationship in mechanical pulping", pages 221 - page 225. *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998031762A1 (fr) * 1997-01-14 1998-07-23 Neste Chemicals Oy Nouvel adhesif pour panneaux en fibre
US6287708B1 (en) 1997-01-14 2001-09-11 Neste Chemicals Oy Adhesive for fiber boards
US6242245B1 (en) 1997-09-26 2001-06-05 Consortium für elektrochemische Industrie GmbH Multicomponent system for modifying, degrading or bleaching lignin or lignin-containing materials, and processes for its use
US6939437B1 (en) 1999-11-19 2005-09-06 Buckman Laboratories International, Inc. Paper making processes using enzyme and polymer combinations
WO2005106110A1 (fr) * 2004-05-03 2005-11-10 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Procede de production mecanique de pate
US8945347B2 (en) 2004-05-03 2015-02-03 Centre Technique De L'industrie Des Papiers, Cartons Et Celluloses Method for mechanical pulp production
WO2008087337A3 (fr) * 2006-12-22 2008-12-18 Arjowiggins Procede de fabrication d'un papier calque
FR2910500A1 (fr) * 2006-12-22 2008-06-27 Arjowiggins Soc Par Actions Si Procede de fabrication d'un papier calque
CN102234948A (zh) * 2010-04-27 2011-11-09 中国科学院过程工程研究所 秸秆漆酶组合预处理脱木质素的方法
WO2013045782A1 (fr) 2011-09-30 2013-04-04 Arkema France Pretraitement enzymatique de bois dans un procede de fabrication de pate a papier mecanique
FR2980805A1 (fr) * 2011-09-30 2013-04-05 Arkema France Pretraitement enzymatique de bois dans un procede de fabrication de pate a papier mecanique
CN103842581A (zh) * 2011-09-30 2014-06-04 阿肯马法国公司 在用于制备机械纸浆的方法中的木材的酶促预处理
US9834886B2 (en) 2011-09-30 2017-12-05 Arkema France Enzymatic pretreatment of wood in a method for producing mechanical paper pulp
CN108660826A (zh) * 2011-09-30 2018-10-16 阿肯马法国公司 在用于制备机械纸浆的方法中的木材的酶促预处理

Also Published As

Publication number Publication date
FI900544A0 (fi) 1990-02-02
FI900544L (fi) 1991-08-03
FI900544A7 (fi) 1991-10-18

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