Academic literature on the topic 'Thermo-mechanical pulping'

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Journal articles on the topic "Thermo-mechanical pulping"

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Schneider, T., C. Behn, E. Windeisen-Holzhauser, and E. Roffael. "Influence of thermo-mechanical and chemo-thermo-mechanical pulping on the properties of oak fibres." European Journal of Wood and Wood Products 77, no. 2 (2019): 229–34. http://dx.doi.org/10.1007/s00107-018-1380-2.

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Talebjedi, Behnam, Ali Khosravi, Timo Laukkanen, Henrik Holmberg, Esa Vakkilainen, and Sanna Syri. "Energy Modeling of a Refiner in Thermo-Mechanical Pulping Process Using ANFIS Method." Energies 13, no. 19 (2020): 5113. http://dx.doi.org/10.3390/en13195113.

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In the pulping industry, thermo-mechanical pulping (TMP) as a subdivision of the refiner-based mechanical pulping is one of the most energy-intensive processes where the core of the process is attributed to the refining process. In this study, to simulate the refining unit of the TMP process under different operational states, the idea of machine learning algorithms is employed. Complicated processes and prediction problems could be simulated and solved by utilizing artificial intelligence methods inspired by the pattern of brain learning. In this research, six evolutionary optimization algori
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Dickson, Alan, Armin Thumm, Karl Murton, and David Sandquist. "The influence of mechanical pulping treatment on the physical properties of wood fibre plastic composites." BioResources 15, no. 3 (2020): 5532–45. http://dx.doi.org/10.15376/biores.15.3.5532-5545.

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Medium density fibreboard (MDF) fibres produced by a mechanical pulping process have shown potential for reinforcement in natural fibre composites (NFCs). In this work, the effect of process options, available in a pilot-scale fibre processing facility, on NFC properties were investigated. These were: a) refining energy; b) pre-treatment by sulphonation (i.e. chemi-thermo-mechanical pulping (CTMP)) and c) whether the extractives stream (i.e. the plug screw pressate) was discarded or included with the fibre. There were improvements in composite performance with refining energy, although these w
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Harinath, Eranda, L. T. Biegler, and Guy A. Dumont. "Advanced Step Nonlinear Model Predictive Control for Two-stage Thermo Mechanical Pulping Processes*." IFAC Proceedings Volumes 44, no. 1 (2011): 3653–58. http://dx.doi.org/10.3182/20110828-6-it-1002.02266.

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Harinath, Eranda, L. T. Biegler, and Guy A. Dumont. "Control and optimization strategies for thermo-mechanical pulping processes: Nonlinear model predictive control." Journal of Process Control 21, no. 4 (2011): 519–28. http://dx.doi.org/10.1016/j.jprocont.2011.01.009.

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Aujla, Muhammad Ikram, Muhammad Akram Kashmiri, and Babar Ali. "Activated sludge and chemical treatment process for Chemi-Thermo-Mechanical Pulping black liquors." International Journal of Environment and Waste Management 8, no. 1/2 (2011): 106. http://dx.doi.org/10.1504/ijewm.2011.040968.

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Harinath, Eranda, L. T. Biegler, and Guy A. Dumont. "Predictive optimal control for thermo-mechanical pulping processes with multi-stage low consistency refining." Journal of Process Control 23, no. 7 (2013): 1001–11. http://dx.doi.org/10.1016/j.jprocont.2013.05.005.

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Mari, E. L., A. S. Torres, and C. O. Austria. "Recycling Mimeograph-Printed Newsprint Paper." ASEAN Journal on Science and Technology for Development 28, no. 2 (2011): 156. http://dx.doi.org/10.29037/ajstd.42.

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Virgin newsprint paper from thermo-mechanical pulp was subjected to a laboratory recycling scheme, which involved mimeograph-printing, re-pulping, de-inking, washing, refining, and handsheetforming, without adding other fibre in between cycles. Fibre dimension, pulp freeness and paper properties were determined after each cycle until the fifth, at which about 20% of the original material remained. The remaining fibre was then mixed with virgin pulp, the original newsprint and unsorted mixed office waste to determine the proportion necessary for acceptable properties. The results indicated rema
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Boonprasertpoh, Aekartit, Duanghathai Pentrakoon, and Warintorn Chavasiri. "Properties of Polyethylene Foam Incorporated with Extracted Lignin from Pulping Black Liquor." Materials Science Forum 654-656 (June 2010): 2289–92. http://dx.doi.org/10.4028/www.scientific.net/msf.654-656.2289.

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This research was a study of physical and mechanical properties of polyethylene foam incorporated with various amount of lignin from 5 to 20 phr.The lignin was isolated from black liquor from Kraft pulping using a sulfuric acid at pH 3 and washed with hot water. A Fourier Transform Infrared Spectroscopy (FTIR), Thermo Gravimetric Analyzer (TGA), and Laser Light Scattering were used to characterize the extracted lignin.The preparation of polyethylene foam was carried out using two-roll mill and compression moulding.Visual inspection, density measurement, and Scanning Electron Microscope (SEM) w
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Talebjedi, Behnam, Timo Laukkanen, Henrik Holmberg, Esa Vakkilainen, and Sanna Syri. "Energy Efficiency Analysis of the Refining Unit in Thermo-Mechanical Pulp Mill." Energies 14, no. 6 (2021): 1664. http://dx.doi.org/10.3390/en14061664.

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A refining model is developed to analyses the refining process’s energy efficiency based on the refining variables. A simulation model is obtained for longer-term refining energy analysis by further developing the MATLAB Thermo-Mechanical Pulping Simulink toolbox. This model is utilized to predict two essential variables for refining energy efficiency calculation: refining motor-load and generated steam. The conventional variable for presenting refining energy efficiency is refining specific energy consumption (RSEC), which is the ratio of the refining motor load to throughput and does not con
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Dissertations / Theses on the topic "Thermo-mechanical pulping"

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Collyer, Matthew. "Catalytic wet air oxidation of thermo-mechanical pulping sludge." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=23365.

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Wet air oxidation (WAO) is a waste treatment process which involves the oxidation of organic and inorganic compounds at high temperature and pressure in the aqueous phase. Previous work has shown that WAO is technically feasible for the treatment of sludge from a thermo-mechanical pulping (TMP) mill. In an attempt to improve the degree of oxidation, and consequently reduce the overall cost, the use of different catalysts was investigated. Experiments were carried out in a stainless steel batch reactor using pure oxygen and sludge from the primary clarifier of a TMP mill. Various metal salts we
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Chang, Gary Carleton University Dissertation Engineering Systems and Computer. "System identification and control of a thermo-mechanical pulping refiner." Ottawa, 1995.

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Puwakkatiya-Kankanamge, Eranda Harinath. "Identification, control and optimization strategies for thermo-mechanical pulping (TMP) processes." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42553.

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The focus of this thesis is to develop an advanced control system for existing and to-be developed Thermo-Mechanical Pulping (TMP) refining processes. Therefore, the thesis has two parts. The first part developed two different but yet complementary closed-loop identification methods to update the models used in the low-level control layer of the current advanced control systems for TMP refiners. These newly developed identification methods are specific to closed-loop systems controlled by Model Predictive Control (MPC) techniques, and successfully tailored to the presence of the MPC.
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Deng, Kailin. "On-line identification of a two-stage thermo-mechanical pulping process." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0026/MQ52388.pdf.

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Deng, Kailin Carleton University Dissertation Engineering Mechanical and Aerospace. "On-line identification of a two-stage thermo-mechanical pulping process." Ottawa, 2000.

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Mårtensson, Tomas. "Application of enzymes for pre-treatment of wood chips for energy efficient thermomechanical pulping." Thesis, Linköpings universitet, Institutionen för fysik, kemi och biologi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-77463.

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Thermomechanical pulping (TMP) is a highly energy intensive process where most of the energy is used in therefining of chips to fibres. Various ways of reducing the energy consumption have earlier been studied, for examplechange of refiner pattern, addition of various chemicals, and also some biochemical implementation in the form of fungus and enzymes. This study includes pre-trials with the enzymes pectin lyase and pectin esterase,multipectinase, xylanase, and mannanase. The results are studied via a reducing sugar assay, an enzymatic assayusing spectrophotometry, and capillary zone electrop
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Domnik, Corinna S. "Activated sludge treatment of chemi-thermo-mechanical pulping effluent : a theoretical and experimental investigation of the response to effluent variation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ29591.pdf.

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Hadera, Hubert [Verfasser], Sebastian [Akademischer Betreuer] Engell, and Ana [Gutachter] Barbosa-Póvoa. "Integrated electricity demand-side management and scheduling of energy-intensive plants : Application to stainless-steel and thermo-mechanical pulping industry / Hubert Hadera. Betreuer: Sebastian Engell. Gutachter: Ana Barbosa-Póvoa." Dortmund : Universitätsbibliothek Dortmund, 2015. http://d-nb.info/1112468641/34.

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Theng, Dyna. "Feasibility of incorporating treated lignin and cellulose nanofiber in fiberboards made from corn stalk and rice straw." Doctoral thesis, Universitat de Girona, 2017. http://hdl.handle.net/10803/461717.

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Agricultural waste is of particularly interest due to abudant, cheap, widely available worldwide and renewable material. It represent a good option for wood sources substitution, containing similar in chemical and physical characteristics. The present Doctoral Thesis studies the possibility of substituting wood sources by crop residues and replacing synthetic binders by natural adhesives in fiberboard production. Corn and rice biomass were selected as raw materials, followed by thermo-mechanical pulping (TMP) pretreatment. Fiberboards made of TMP of both crop residues without any binder presen
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Book chapters on the topic "Thermo-mechanical pulping"

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Harrison, Robert P., and Paul R. Stuart. "Processing of thermo-mechanical pulping data to enhance PCA and PLS." In Computer Aided Chemical Engineering. Elsevier, 2003. http://dx.doi.org/10.1016/s1570-7946(03)80252-3.

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