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  • disc refiner, disc refiner Suppliers and

    Doule disc pulp refiner Double disc pulp refiner for paper making machine The double disc refiner paper pulp making equipment designed and manufactured by Henan Fuyuan Company is traditionally installed in stock preparation plants, for both waste paper and virgin pulp, to improve fibers characteristics in order get a better sheet formation and …

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  • cellulose mill, cellulose mill Suppliers and

    LDPE PET rigid PVC CMC cellulose powder making machine liquid nitrogen treatment pulverizer machine. ... cellulose making pulp making biorefinery disc refiner. 5,000.00-20,000.00 Set. 1.0 Sets ... Cellulose Bamboo Fiber Paper Pulp Raw Materials For Making Tissue Papers in Mill with Best Price.

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  • Opportunities for biorefineries in the pulping industry

    2014-1-13 · making use of the chemical structures of complex organic compounds derived from the wood com - ponents. Moreover, the cellulose fraction which is currently used for paper products can be used for other purposes, such as production of biofuels or specialty cellulose products. In addition, there are new possibilities to make use of low …

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  • Refiner Disc Solutions For All Paper Mills | Parason

    2021-4-1 · Parason refiner disc specialists working on the latest technology to develop cost-efficient solutions. We offer a range of high-performance refiner disc to optimize production costs and pulp quality. Parason delivers customized solutions in the form of high-consistency refiner disc for mechanical pulp producers, dispersion processes, and chemical pulp …

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  • Optimization of pilot scale mechanical disk

    2021-4-1 · Optimization of refiner plate design can reduce energy consumption, increase production rate, and improve pulp quality in a pulp refining process (Musselman and Gringas 2007). Plate design changes in combination with optimized rotational speed can control the fiber residence time in the refiner and impact important fiber properties for …

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  • Converting a Kraft Pulp Mill into an Integrated Forest ...

    Biorefinery”, Pulp and Paper Canada, 107(6), 38-43(2006) ... because of competition from low-cost hardwood pulps with excellent paper making ... 0.30/gallon for cellulose conversion in last 5 ...

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  • Basic Pulp Properties - Biorefinery Site

    2017-6-16 · Pulp Handsheets Used for testing of pulp quality. TAPPI standard handsheets = 60 od g/m2 (1.2 od g) Make sheets in handsheet mold with 1.2 od g pulp. Couch sheets off mold with blotter paper. Cover one side with polished chrome plate. Put in handsheet press and press twice at 50 psig. Ist time 5 minutes, 2nd time 2 minutes.

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  • The Pulp and Paper Making Processes - Princeton

    2007-3-19 · The Pulp and Paper Making Processes ... Chips are used to produce refiner pulp and thermomechanical pulp. In both processes the chips ... rate the lignin from the cellulose fibers and remove it from the pulp. A major advantage of mechanical pulping is the high yields of pulp that can be

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  • Papermaking STOCK PREPARATION– LC REFINING

    2013-1-2 · A disc refiner is very similar to the conical refiner. The pulp travels between two discs with bars and grooves. There are essentially three categories of disc refiner: 1. Single disc refiners, where the pulp goes between a rotating rotor and a stationary stator. 2. Twin refiner where th e rotor and stator both rotate. 3.

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  • ANDRITZ PULP & PAPER

    The pulp making process hasn’t inherently changed over the years; however, ANDRITZ has had a lot of success with reinventing processes and technology in and around mills to increase capacity, improve quality, and cut operating costs. The LimeWhite-H White Liquor Disc Filter is another game-changing development.

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  • Volume 14 Issue 3 :: Article Issues :: BioResources

    2021-2-20 · A biorefinery approach was used to bleach the resulting solid phase containing the cellulose pulp with an optimized O–D–(EP)–D bleaching sequence, where O denotes delignification with the sequence D bleaching with chlorine dioxide and EP alkaline extraction with soda and hydrogen peroxide. The pulp was then beaten to …

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  • A highly efficient dilute alkali deacetylation and ...

    Enzymatic cellulose digestibility of DCS treated by the disc refiner was also measured at high solids conditions. Hydrolysis was conducted with 100 g of slurry in 250-mL capped Schott media bottles. The bottles were autoclaved empty, then the pH-adjusted disc-refined substrates were manually introduced into the bottles using a small funnel to ...

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  • The current status of the enzyme-mediated ... -

    2020-7-19 · The commercial cellulase preparation Celluclast, used in the pretreatment of high-purity bisulfate softwood pulp at 2 EGU/g for 2 h, resulted in efficient isolation of CNFs in a disc-refiner and drastically reduced the DP from 800 for the initial cellulose pulp to 500 for the CNFs (Nechyporchuk et al. 2015).

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  • Brief Description of the Pulp and Paper Making

    Pulp making can be done mechanically or chemically. ... the pulp and paper industries obtain cellulose from hardwood or softwood materials which are high in demand compaed with non-wood materials ...

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  • (PDF) PULP AND PAPER PULP AND PAPER PULP

    9 Chemical composition : high content of cellulose and hemicelluloses, low lignin g content 9 Sustainable 9 Low production cost Nyoman Wistara, Ph.D. Division of Forest Products Chemistry 23 11 Pulp and Paper Processing Stages: Nyoman Wistara, Ph.D. Division of Forest Products Chemistry 24 Processing Stages Raw Material Preparation - …

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  • (PDF) Microfibrillated cellulose: Energy-efficient ...

    The starting pulp, sulphite pulp, was chosen for its high hemicellulose content.The used enzyme cannot degrade the cellulose in the crystalline regions, only in the amorphous regions. Therefore, moderate refining to a Schopper-Riegler (SR) value of approximately 28 was first done before the enzyme treatment.

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  • Academic Journal of Polymer science (AJOP) |

    The cooked material was defibrated using a 25cm laboratory single-disc refiner, and then pulp was screened using a set of 2 screens, a 12-mesh screen on top of a 200-mesh screen. The material remaining on the 12-mesh screen was considered as reject (shives), and the fibers that passed the 12-mesh screen but remained on the 200-mesh screen …

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  • 2017EhmanCCT.pdf - See discussions stats and

    CELLULOSE CHEMISTRY AND TECHNOLOGY Cellulose Chem. Technol., 51 (9-10), 863-870(2017) DISSOLVING PULPS BY OXIDATION OF THE CELLULOSIC FRACTION OF LIGNOCELLULOSIC WASTE NANCI V. EHMAN, * GUSTAVO E. RODRIGUEZ RIVERO, ** MARÍA CRISTINA AREA * and FERNANDO E. FELISSIA * * Pulp and Paper Program, …

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  • Cellulose Chemistry and Technology

    Preparation of cationic softwood kraft pulp fibres as retention additive to produce reconstituted tobacco sheet via paper-making Pages 505-513 CHAOWEI WU, JIN LI, LITAO ZHANG, WENLING WANG, CHONG LUO, XIAOHUI TIAN, YANGYUAN TIAN, XIAOLONG ZHANG, CHEN WANG, RUNAN WANG, JIANKAI LI, XIAODONG YANG and YANGBING WEN

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  • US4773965A - Strong and clean sulfite pulp and

    Sulfite pulp having increased tear, Scott bond, and stretch properties and above about 90% dirt reduction without bleaching. Methods for making such sulfite pulp by increasing the consistency of conventional sulfite pulp to above about 12 percent, shearing the increased consistency pulp under compressive forces to improve the tear and stretch properties of the pulp, refining the sheared pulp …

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  • Polymers | Free Full-Text | Nanocelluloses:

    Furthermore, pulp beating increases the durability of composites, as proven by Tonoli et al. , due to the improved surface contact area after refining, which enhances the adhesion of the sort fibers to the matrix. Refining is carried out through a disc refiner with a relatively narrow gap between rotor and stator.

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  • at the Sappi Technology Centre

    2016-10-3 · Alpha cellulose Wood and pulp Extraction In-house method R223 ... Pilot refining using disc refiner – 8kg pulp Internal method R2,758 ... Handsheet making per beating Pulp Sheet forming ISO 5269-2-2004; TAPPI T205 SP-06 – 2006 R880 Freeness Pulp pulp drainage T227 om – 09 – 2009 R220 ...

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  • The current status of the enzyme-mediated ... -

    2020-7-19 · The increasing interest for cellulose-based products has resulted in the development of processes for the controlled deconstruction of cellulose into cellulose nanomaterials, such as cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs). These nanomaterials can significantly increase the diverse applications of cellulose by …

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  • Publications in High Yield Pulping Technology

    Measurement of the Power Distribution in a Single Disc Refiner. Journal of Pulp and Paper Science, vol. 25: 11, pp. 384-387. Paulsson, M. , Simonson, R. & Westermark, U. (1995). Chemical modification of lignin-rich paper: Part 2. Photostabilization by acetylation of paper made from spruce TMP and aspen CTMP.

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  • Fiber technology center - Project examples

    Complete pulp mills Chemical pulping Wood handling Cooking and fiber line Pulp drying Chemical recovery Air emission control New value-adding processes Dissolving pulping Mechanical pulping Recycled fiber Automation for pulp Services for pulp Fiber Technology Center

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  • US8123904B2 - Method of making medium

    The present invention provides a method for producing an MDF board from pulp from a fibrous lignocellulose material using a treatment or pretreatment step which exposes the material to oxalic acid or oxalic acid derivatives (particularly dialkyl ester derivatives, particularly in the vapor phase). The treated wood is then subjected to a sugar …

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  • With Classifying, Separating Or Screening Of Pulp

    Abstract: The invention relates to a method of making a paper or paper board, in which method cut pulp is prepared by cutting basic cellulosic fiber pulp at the consistency of at least 25% so that the average fiber length of the basic pulp is decreased by more than 25% and the SR number of the cut pulp is at most 20% higher than that of the ...

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  • Per Engstrand - Miun

    Mechanical Properties of high-yield pulp handsheets, as affected by blends of Nano-ligno-cellulose. Paper presented at the 2013 TAPPI International Conference on Nanotechnology for Renewable Materials, Stockholm, Sweden , 24-27 June 2013.

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  • Process of bleaching softwood pulps in a D1 or

    The washed pulp exits the bleaching sequence via line 46 for conventional use as for example in a paper making process. Example 2. The pulp was made from a pine softwood cooked by the Kraft process. The unbleached Eop pulp had 4.9 Permanganate number, 52.2% brightness, and 25 cP viscosity.

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  • A mild thermomechanical process for the

    2017-3-9 · The lignin residue remaining after the enzyme-based process for converting lignocellulosic substrates to sugars is a potential future feedstock for conversion into a wide variety of sustainable products [45, 46].Under the acidic conditions present during hydrothermal treatment lignin can be both partially depolymerised via cleavage of β-O-4 …

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  • Relation of certain infrared bands to cellulose ...

    Yongjian Xu, Yang Xu and Xiaopeng Yue, Changes of hydrogen bonding and aggregation structure of cellulose fiber due to microwave-assisted alkali treatment and its impacts on the application as fluff pulp, Cellulose, 24, 2, (967), (2017).

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  • Professor Iain Donnison - BEACON

    2020-11-23 · Refiner disc (refining zone) with variable residence time 4- 30 min and 2- 20 bar ... A biorefinery is a facility integrating equipment and processes for the conversion of biomass feedstock into a host of valuable chemicals and energy with minimal waste and emissions. ... cellulose, extractives etc which can be converted into biofuels ...

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  • ANDRITZ to supply two tissue production lines

    2021-3-21 · The proven TwinFlo disc refiner technology is used in a separate long-fiber line to achieve optimum development of fiber properties. The approach flow systems feature the ANDRITZ ShortFlow concept, which allows a minimized number of equipment items and very low storage volume as well as fast grade changes at the tissue machine.

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  • Publikationer - e2mp-i

    Measurement of the Power Distribution in a Single Disc Refiner. Journal of Pulp and Paper Science, vol. 25: 11, ss. 384-387. Paulsson, M. , Simonson, R. & Westermark, U. (1995). Chemical modification of lignin-rich paper: Part 2. Photostabilization by acetylation of paper made from spruce TMP and aspen CTMP.

    Get Price
  • Database: Step by Step | Pilots4U

    Jacket, stirred batch reactor for processing, bleacing and other chemical treatments for pulp or biomass. 2 x800 l, 100C, 1 bar. Technology area: Chemical or enzymatic pre-treatment, Extraction, Hydrolysis, Hydrothermal processing, Thermal or pressure pretreatment. Service provider: Danish Technological Institute

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  • A mild thermomechanical process for the

    2017-3-9 · The lignin residue remaining after the enzyme-based process for converting lignocellulosic substrates to sugars is a potential future feedstock for conversion into a wide variety of sustainable products [45, 46].Under the acidic conditions present during hydrothermal treatment lignin can be both partially depolymerised via cleavage of β-O-4 …

    Get Price
  • Frontiers | Recycling of Dilute Deacetylation

    Deacetylation/dilute alkaline pretreatment followed by mechanical refining (DMR) has been proven as an effective process for biomass sugar liberation without severe chemical modification to lignin. Previous research has been focused on optimizing deacetylation conditions, reducing energy consumptions in mechanical refining, and improving sugar …

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  • Eraldo Antonio Bonfatti Júnior - Universidade

    To reduce the rejects content, the pulp was subjected to two passages through the disc refiner. The oxygen delignification occurred in medium consistency (10%) and oxygen pressure of 5 kgf·cm-², in addition to the delignification with the combination of four alkaline charges (15, 30, 45 and 60 kg·t-1) and four temperatures (80, 100, 120 and ...

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  • Technology Disclosure Cases Inactive

    SUNY-ESF is the oldest and most distinguished institution in the United States that focuses on the study of the environment.

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  • Table of Contents of Presentations - Society of

    2012-10-25 · 2. Making Significant Change To The Mode Of Forestry Sector’s Foreign Trade 2.1 Changing the reliance on traditional comparative advantages as labor force, raw material and land, to competitive advantages as technology, brand, quality, and service As economic globalization and trade freedom further progressed, currently some developing

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  • Biotechnology for Pulp and Paper Processing -

    Pulp and Paper Making Process Pulp Making Process Manufacturing of pulp starts with raw material preparation (Smook 1992a; Biermann 1996a). This includes debarking (when wood is used as raw material), chipping, and other processes such as depithing (for example, when bagasse is used as the raw material).

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  • Professor Iain Donnison - BEACON

    2020-11-23 · Refiner disc (refining zone) with variable residence time 4- 30 min and 2- 20 bar ... A biorefinery is a facility integrating equipment and processes for the conversion of biomass feedstock into a host of valuable chemicals and energy with minimal waste and emissions. ... cellulose, extractives etc which can be converted into biofuels ...

    Get Price
  • Eraldo Antonio Bonfatti Júnior - Universidade

    To reduce the rejects content, the pulp was subjected to two passages through the disc refiner. The oxygen delignification occurred in medium consistency (10%) and oxygen pressure of 5 kgf·cm-², in addition to the delignification with the combination of four alkaline charges (15, 30, 45 and 60 kg·t-1) and four temperatures (80, 100, 120 and ...

    Get Price
  • Publikationer - e2mp-i

    Measurement of the Power Distribution in a Single Disc Refiner. Journal of Pulp and Paper Science, vol. 25: 11, ss. 384-387. Paulsson, M. , Simonson, R. & Westermark, U. (1995). Chemical modification of lignin-rich paper: Part 2. Photostabilization by acetylation of paper made from spruce TMP and aspen CTMP.

    Get Price
  • Database: Step by Step | Pilots4U

    Jacket, stirred batch reactor for processing, bleacing and other chemical treatments for pulp or biomass. 2 x800 l, 100C, 1 bar. Technology area: Chemical or enzymatic pre-treatment, Extraction, Hydrolysis, Hydrothermal processing, Thermal or pressure pretreatment. Service provider: Danish Technological Institute

    Get Price
  • The potential of using carbohydrate-binding

    Cellulose is a structural material that, through its association with lignin and hemicellulose, is recalcitrant to degradation. Although the effectiveness of cellulose hydrolysis is usually assessed via glucose release, typically, cellulase accessibility to the cellulosic substrate is the key limitation that restricts effective enzymatic hydrolysis …

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  • A mild thermomechanical process for the

    Results. We summarise work leading to the development of an efficient process for the enzymatic conversion of radiata pine (Pinus radiata) into wood sugars.The process involves initial pressurised steaming of wood chips under relatively mild conditions (173 °C for 3–72 min) without added acid catalyst.

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  • The influence of enzymatic liquefaction and

    Enzyme-mediated hydrolysis of lignocellulosic materials for their conversion into bioproducts would benefit significantly if high solids concentrations (low water-to-biomass ratios) could be processed effectively. However, the fibrous nature of lignocellulosic biomass makes effective reaction mixing difficult, resulting in mass …

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  • Technology Disclosure Cases Inactive

    SUNY-ESF is the oldest and most distinguished institution in the United States that focuses on the study of the environment.

    Get Price
  • Jean-Francis Bloch, professor of paper science

    2018-8-28 · I am a professor of paper science, father of two, and mentor of 60 alumni. My work mainly focuses on the physics, mechanics, and optics of fibrous materials (e.g., microfluidics, magnetism, friction, brightness, or stiffness). I have a particular interest in the multiscale approach to establish a relationship between micro-structures and …

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