Relevant bibliographies by topics / Thermomechanical pulping (TMP)

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  1. Journal articles
  2. Dissertations / Theses

Academic literature on the topic 'Thermomechanical pulping (TMP)'

Author: Grafiati
Published: 4 June 2021
Last updated: 13 February 2022

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Journal articles on the topic "Thermomechanical pulping (TMP)"

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Roffael, Edmone, Brigitte Dix, and Thomas Schneider. "Thermomechanical (TMP) and Chemo-Thermomechanical Pulps (CTMP) for Medium Density Fibreboards (MDF)." Holzforschung 55, no. 2 (2001): 214–18. http://dx.doi.org/10.1515/hf.2001.035.

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Summary Thermomechanical (TMP) and chemo-thermomechanical pulps (CTMP) were prepared from spruce under different pulping conditions. The fibres were dried at 70 °C and medium density fibreboards (MDF) were made therefrom in pilot plant scale using urea-formaldehyde resins as a binder. The results of testing the physical-mechanical properties reveal that the pulping temperature has a significant influence on the thickness swelling and water absorption of the boards. MDF prepared from fibres produced at high pulping temperature (180 °C) generally show lower thickness swelling and water absorptio
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Solala, Iina, Toni Antikainen, Mehedi Reza, Leena-Sisko Johansson, Mark Hughes, and Tapani Vuorinen. "Spruce fiber properties after high-temperature thermomechanical pulping (HT-TMP)." Holzforschung 68, no. 2 (2014): 195–201. http://dx.doi.org/10.1515/hf-2013-0083.

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Abstract Spruce was submitted to high-temperature (150°C–170°C) refining for 2 or 5 min to produce thermomechanical pulp (TMP) fibers with decreased electrical energy consumption. The pulp was characterized in terms of specific energy consumption as well as tensile and surface properties. The fibers from high-temperature TMP contained more surface lignin even if all sample types usually broke at the S1–S2 cell wall region. They also produced significantly weaker paper sheets, whereas their dry zero-span strength did not suffer substantial losses, indicating decreased fiber-fiber bonding. Tensi
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Dollié, Lucas, Gérard Mortha, and Nathalie Marlin. "Modeling kraft cooking kinetics of fiber mixes from TMP and unbleached kraft pulps for assessment of old corrugated cardboard delignification." Holzforschung 72, no. 8 (2018): 621–29. http://dx.doi.org/10.1515/hf-2017-0197.

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AbstractKraft cooking kinetics of three different lignocellulosic substrates have been investigated, namely fibers from unbleached kraft pulp (UBKP from Pinus radiata), fibers from softwood unbleached thermomechanical pulp (TMP), and wood chips for TMP production. UBKP and TMP were considered to be representative of a fiber mixture obtained after the pulping and cleaning of old corrugated cardboards (OCC). The characteristic parameters for fitting a mathematical model for kraft pulping were estimated. Based on the results, a “fiber mixture cooking model” was developed to predict the cooking ki
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Zheng, M. R., and B. Q. Liao. "Membrane Aerated Biofilm Reactors for Thermomechanical Pulping Pressate Treatment." International Journal of Chemical Reactor Engineering 14, no. 5 (2016): 1017–24. http://dx.doi.org/10.1515/ijcre-2015-0183.

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Abstract A comparative study on the treatment of thermomechanical pulping (TMP) pressate between thermophilic (55 °C) and mesophilic (30 °C) membrane aerated biofilm reactors (MABRs) was conducted under different cycle lengths (CLs) for over 114 days. The performance of the MABRs was evaluated in terms of soluble chemical oxygen demand (COD) removal and biofilm detachment. With a total influent COD of 3,700–4,100 mg/L, the soluble COD removal efficiency of thermophilic MABR (40–65 %) was slightly lower than that of mesophilic MABR (50–80 %) under different CLs. The level of effluent suspended
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HU, THOMAS Q., MICHELLE ZHAO, SURJIT JOHAL, BERNARD YUEN, and PAUL WATSON. "Effects of Mountain Pine Beetle Grey-Stage Infestation and Chip Moisture Content on TMP Pulping of Lodgepole Pine." May 2009 8, no. 5 (2009): 11–18. http://dx.doi.org/10.32964/tj8.5.11.

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We performed pilot-plant thermomechanical pulping on green and dry, mountain pine beetle-infested, grey-stage lodgepole pine sapwood chips with different moisture contents. The energy requirements and the tensile strength of the thermomechanical pulps (TMPs) from the dry, early-grey-stage chips were similar to those from the green chips, but there were indications of slightly higher energy requirements and lower tensile strength for the pulps from the late-grey-stage chips. The late- or early-grey-stage TMP had lower sheet density (because of the lower chip moisture content), lower ISO brightn
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Li, Bin, Haiming Li, Quanqing Zha, Rohan Bandekar, Ahmed Alsaggaf, and Yonghao Ni. "Review: Effects of wood quality and refining process on TMP pulp and paper quality." BioResources 6, no. 3 (2011): 3569–84. http://dx.doi.org/10.15376/biores.6.3.li.

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For the thermomechanical pulping (TMP) process both wood chip quality and the refining process have important effects on the resulting pulp and paper quality. Properties of wood raw material give a framework for final pulp properties. During TMP refining the specific energy consumption and refining intensity strongly impact fibre and pulp qualities. Increasing specific energy consumption benefits the development of fibres and improves their properties. However, high intensity refining tends to shorten the fibres and produces more fines content when compared with low intensity refining. This re
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7

Jahren, Sigrun J., and Hallvard Ødegaard. "Treatment of Thermomechanical Pulping (TMP) Whitewater in Thermophilic (55°C) Anaerobic-Aerobic Moving Bed Biofilm Reactors." Water Science and Technology 40, no. 8 (1999): 81–89. http://dx.doi.org/10.2166/wst.1999.0391.

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Thermomechanical pulping whitewater was treated in an anaerobic followed by an aerobic Kaldnes moving bed biofilm reactor at 55°C. The anaerobic reactor was mixed by gas circulation and the aerobic reactor was mixed by aeration. The anaerobic reactor was started with mesophilic inoculum, while the aerobic reactor was started without inoculation. The reactors were operated on molasses water for one and a half years before the experiment was started. Total biomass concentrations (suspended and attached) were 3.3 g VSS/L in the anaerobic reactor and 1.6 g VSS/L in the aerobic reactor when startin
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Muguet, Marcelo Coelho dos Santos, Fernando José Borges Gomes, Kyösti Ruuttunen, et al. "Pulping-tailored fiber properties from a novel Brazilian Eucalyptus hybrid." Holzforschung 68, no. 3 (2014): 273–82. http://dx.doi.org/10.1515/hf-2013-0114.

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Abstract The chemical composition and morphology of pulp fibers have a significant impact on the properties of fiber products. Pulp samples from a novel unique Eucalyptus triple hybrid [Eucalyptus grandis × (Eucalyptus urophylla × Eucalyptus globulus)] were obtained by various pulping processes – kraft, soda-anthraquinone (NaOH-AQ), and thermomechanical pulping (TMP). The chemical composition of the fiber surfaces was evaluated by X-ray photoelectron spectroscopy (XPS). The surface lignin content of NaOH-AQ pulp fibers was lower than that of the kraft counterpart. However, kraft pulp handsheet
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Langevin, S. P., and B. Q. Liao. "Treatment of thermomechanical pulping condensate using thermophilic and mesophilic sequencing batch reactors." Water Science and Technology 62, no. 11 (2010): 2527–35. http://dx.doi.org/10.2166/wst.2010.939.

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In-mill thermophilic treatment of individual wastewater streams to achieve water system closure has received much attention in pulp and paper mills. Aerobic biological treatment of thermomechanical pulping (TMP) condensate was conducted using thermophilic (55°C) and mesophilic (35°C) sequencing batch reactors (SBRs) for a period of 143 days at a cyclic time of 6, 8 and 12 h. A soluble chemical oxygen demand (SCOD) removal efficiency of 77 to 91% was achieved, given an organic loading rate of 0.7–1.3 kg/m3 d. The COD removal efficiency of the thermophilic SBR was slightly lower than that of the
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Jahren, Sigrun J., and Jukka A. Rintala. "The closure of water circuits by internal thermophilic (55 and 70°C) anaerobic treatment in the thermomechanical pulping process." Water Science and Technology 35, no. 2-3 (1997): 49–56. http://dx.doi.org/10.2166/wst.1997.0480.

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The suitability of an internal thermophilic anaerobic treatment system for closing the water circuits in thermomechanical pulp (TMP) production was studied. The dissolution of wood organics in the water circuit was simulated by hot disintegration of TMP pulp, while the water system closure was simulated by repeated hot disintegration of TMP pulp with recirculated water. The upflow anaerobic sludge blanket (UASB) reactors were started at 55 and 70°C with mesophilic inoculum, and stable performances were established within 60 days at both temperatures. Closing the water circuits without internal
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Dissertations / Theses on the topic "Thermomechanical pulping (TMP)"

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Vena, P. F. "Thermomechanical pulping (TMP), chemithermomechanical pulping (CTMP) and biothermomechanical pulping (BTMP) of bugweed (Solanum mauritianum) and Pinus Patula." Thesis, Link to the online version, 2005. http://hdl.handle.net/10019/1283.

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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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Muhic, Dino. "Improved energy efficiency in double disc chip refining." Licentiate thesis, Mittuniversitetet, Institutionen för naturvetenskap, teknik och matematik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-12979.

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The electrical energy consumption in thermomechanical pulping (TMP) is very high, in the range of 2 – 3 MWh/adt depending on process solution and on the product quality specifications for the paper product. Both pulpwood and energy prices have increased rapidly for some time. Due to this, the main focus of the research and development is on ways to reduce the electrical energy consumption in wood chip refining. As a step towards a more energy and cost ‐ effective refining process, Holmen Paper AB has invested in a new mechanical pulping process at its Braviken mill. In this case the primary re
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Illikainen, M. (Mirja). "Mechanisms of thermomechanical pulp refining." Doctoral thesis, University of Oulu, 2008. http://urn.fi/urn:isbn:9789514289064.

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Abstract The objective of this thesis was to obtain new information about mechanisms of thermomechanical pulp refining in the inner area of a refiner disc gap by studying inter-fibre refining and by calculating the distribution of energy consumption in the refiner disc gap. The energy consumption of thermomechanical pulping process is very high although theoretically a small amount of energy is needed to create new fibre surfaces. Mechanisms of refining have been widely studied in order to understand the high energy consumption of the process, however, phenomena in the inner area of disc gap
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Journal articles
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