Dissertations / Theses on the topic 'Pâtes et papier'
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Szadeczki, Marika. "Ozonation de pâte thermomécanique : ozonations de mélanges de pâtes thermomécaniques et chimiques : application aux fibres recyclées." Grenoble INPG, 1997. http://www.theses.fr/1997INPG0192.
Full textCochaux, Alain. "Résistance au déchirement des pâtes et des papiers : caractérisation et possibilités d'amélioration." Grenoble INPG, 1994. http://www.theses.fr/1994INPG0082.
Full textPan, Xiaoqi. "Caractérisation de la lignine des pâtes mécaniques : application au cas du blanchiment et du photojaunissement des pâtes." Grenoble INPG, 1991. http://www.theses.fr/1991INPG0091.
Full textAmaral, Maria Emilia da Costa Cabral. "Désintégration des pâtes à papier : Caractérisation et quantification des effets produits." Grenoble INPG, 2001. http://www.theses.fr/2001INPG0102.
Full textTavernier, Didier. "Étude biologique et chimique des accidents de blanchiment des pâtes à papier." Lille 1, 1988. http://www.theses.fr/1988LIL10065.
Full textKashama, Batabela Johnny. "Caractérisation physiologique des populations bactériennes contaminant les machines des pâtes et papier." Mémoire, Université de Sherbrooke, 2007. http://savoirs.usherbrooke.ca/handle/11143/4785.
Full textDelpech-Barrie, Françoise. "Délignification des pâtes cellulosiques et des végétaux par l'oxygène : milieux aqueux, alcalins et solvants organiques-eau." Grenoble INPG, 1991. http://www.theses.fr/1991INPG0001.
Full textLecourt, Michael. "Etude de la réduction de la consommation énergétique du raffinage des pâtes chimique par traitement enzymatique." Aix-Marseille 1, 2010. http://www.theses.fr/2010AIX1A084.
Full textTo produce papers matching with the requirements of paper machines and customers , it is of of the utmost importance to refine bleached chemical pulps. This stage allows modifying the morphological characteristics of fibres, to improve the paper formation and to develop the mechanical resistance of paper. The refining requires up to 30 % of the total energy consumption of a paper mill. Consequently, it is a key issue to look for solutions aiming at reducing the energy bill of this post. In this context, the addition of enzymes in the process could be one of these environmentally friendly solutions. The enzymes chosen, introduced before refining, have a specific action on the fibre wall chemid ll components of bleached kraft pulps which have been obtained from a mix of softwood or fram Brazilian eucalyptus. Results of introducing the enzyme allowed assessment and quantification of the impact of the enzyme treatment on fibre compounds organization and praperties. The consequences of the enzyme treatment differed from an enzyme to another one. Enzymes presenting an activity cellobiohydrolase, xylanase or mannanase had limited effects. Changes were too narrow to be noticed. Xylanase treatment only resulted in an improvement in pulp brightness. Cellulases presenting major endoglucanase activity opened the structure of fibres, increasing the proportion of linked water in the wall and the tensile strength of paper. Observations with electron microscopy coupled with immunolabelling technique showed the penetration of this enzyme through the fibre wall. Nevertheless, in the case of softwood pulp, fibre length dropped. The optimization of the enzyme amount and the mechanical treatment through a reduction of the refining intensity, reduced tear strength losses. In these conditions, if a reduction of 10 % of tensile strength and 13 % of tear strength can be tolerated, 40 % of refining energy could be saved. Ln the case of eucalyptus pulp, endoglucanases generated the most important effects with an improvement of the paper resistance and a better drainage. With an optimizedenzymatic refining, it became possible to reduce the energy consumption by 45 % to reach 4km of breaking length, while maintaining high levels in the other relevant parameters
Chouaib, Nadia. "Pâtes à haut rendement et fibres secondaires : mise en oeuvre de l'ozone et du peroxyde d'hydrogène." Toulouse, INPT, 1997. http://www.theses.fr/1997INPT022G.
Full textRavalason, Holy. "Développement de nouveaux outils fongiques respectueux de l'environnement (écoprocédés) pour la production de pâtes chimiques blanchies de résineux." Aix-Marseille 1, 2009. http://www.theses.fr/2009AIX11017.
Full textBiotechnologies can be applied to paper industry as an alternative to chemical processes for pulp and paper production. In this work advances in genomic and protein engineering were used to improve biotechnological processes applied to chemical pulps production and bleaching. In the first part of this work, the Phanerochaete chrysosporium secretome, grown on softwood chips under biopulping conditions was analysed. A proteomic approach was chosen, using the P. Chrysosporium genome. Proteomic analysis revealed the production of several enzymes involved in wood biodegradation. The secretion of some of the identified enzymes was demonstrated for the first time. Biotreated wood chips were further submitted to kraft cooking and chlorine dioxide bleaching. Fungal treatment led to an increase of pulp yield, as well as an increase of pulp final brightness and a decrease in chlorine dioxide consumption. These effects could be partially explained by the production of specific wood-degrading enzymes. In the second part, Pycnoporus cinnabarinus laccase was fused to a fungal carbohydrate binding module (CBM). The laccase-CBM was produced in Aspergillus niger, and binding capabilities of the enzyme on a cellulosic substrate and on softwood kraft pulp fibers were evaluated. Laccase-CBM and P. Cinnabarinus laccase were compared for their softwood kraft pulp biobleaching potential, in the presence of a redox mediator (hydroxybenzotriazole). The presence of the CBM could improve pulp biodelignification with laccase, leading to a decrease in the enzymatic charge, an increase of pulp final brightness, a decrease in chlorine dioxide consumption and a preservation of pulp mechanical properties. Microscopic examinations revealed a penetration of the laccase-CBM in the fiber wall, and retention of the enzyme inside the pulp fibers at the end of the enzymatic treatment
Vaillancourt, Samuel. "Productivité et le rôle des prix des intrants dans le secteur des pâtes et papiers." Thesis, Université Laval, 2011. http://www.theses.ulaval.ca/2011/28115/28115.pdf.
Full textSévillano, Rose-Marie. "Structures des lignines résiduelles des pâtes chimiques : influence des méthodes d'extraction, des procédés de délignification et des essences de bois." Grenoble INPG, 1999. http://www.theses.fr/1999INPG0046.
Full textLe, Roux Jérôme. "Modification des fibres cellulosiques : amélioration des propriétés hydrophiles des pâtes bisulfites." Bordeaux 1, 2003. http://www.theses.fr/2003BOR12665.
Full textDelagoutte, Thierry. "Evaluation des péroxyacides (acide péroxyacétique et acide péroxymonosulfurique) en tant qu'agents de blanchiment des pâtes à papier chimiques kraft." Grenoble INPG, 1998. http://www.theses.fr/1998INPG0020.
Full textBonnevie, Xavier. "Etude d'un procédé alcalin de fabrication de pâte à papier à partir de plantes annuelles et du blanchiment de ces pâtes sans chlore ni composés chlorés. Utilisation de l'ozone et des peroxydes." Toulouse, INPT, 1994. http://www.theses.fr/1994INPT012G.
Full textVezier, Annick. "Blanchiment par l'ozone de pâtes à papier à haute consistance. Application à l'eucalyptus et au sorgho sucrier." Toulouse, INPT, 1996. http://www.theses.fr/1996INPT051G.
Full textFortin, Lynda. "Du loisir d'entreprise à l'association d'employés : le cas des usines de pâtes et papier de Trois-Rivières." Thèse, Université du Québec à Trois-Rivières, 1990. http://depot-e.uqtr.ca/5516/1/000583362.pdf.
Full textRousselle-Manuel, Christine. "Modélisation du mécanisme de raffinage des pâtes à papier et étude de nouveaux paramètres géométriques liés aux plaques." Grenoble INPG, 1989. http://www.theses.fr/1989INPG0079.
Full textFernandes, Jean-Carlos. "Modifications structurales apportées à la lignine lors de la cuisson kraft et des stades de blanchiment des pâtes papetières." Grenoble INPG, 1994. http://www.theses.fr/1994INPG0051.
Full textLévesque, Johanne. "Absentéisme et satisfaction au travail dans le secteur industriel des pâtes et papiers au Québec (1984-1985)." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/NQ60777.pdf.
Full textCardona, Danièle. "Action de l'oxygène sur les constituants du bois et des pâtes à papier : application à la délignification et au blanchiment." Grenoble INPG, 1999. http://www.theses.fr/1999INPG0004.
Full textBelayachi, Larbi. "Pâtes à papiers chimiques blanchies de plantes annuelles sans chlore ni soufre : cas de l'orge et du sorgho sucrier." Toulouse, INPT, 1995. http://www.theses.fr/1995INPT006A.
Full textBen, Daya Bechir. "Planification soutenable des investissements bioénergétiques : intégration des bioraffineries aux pâtes et papiers." Doctoral thesis, Université Laval, 2018. http://hdl.handle.net/20.500.11794/30335.
Full textThe Canadian pulp and paper sector has played a major socio-economic role in the last two centuries. In addition to the advantage of their geographical position, P&P companies have accumulated proven experience in the forest industry, including the treatment of wood biomass. Over the last three decades, these entities have faced difficult environmental constraints, compounded by a chronic market crisis. This latest crisis has had unprecedented social consequences leading to a crisis of sustainability. Over the last decade, the green energy industry has become a basic component of the energy transition strategies for developed countries. Biomass has always been at the heart of such a strategy for Canada. For the P&P, this orientation is an opportunity to solve the growing environmental and economic crisis of the sector. Decision-makers need a road map to transform P&P's factories into an Integrated Forest Biorefinery (IFBR). The choice of technologies, the sizing of production capacity and the choice of bioenergy investment are major concerns for decision-makers. However, assessing the sustainability of this transformation remains a major challenge. Our contribution is focused on developing decision support approaches and tools to support an effective, robust and sustainable transformation of Canada's P&P industry. The objective is to assess the sustainability of the IFBR integration and to present a new business model to decision-makers, which can strengthen their ability to negotiate a favorable incentive policy for bioenergy investments within the framework of the public-private partnership. To achieve this goal, our methodology combines decision support tools, mathematical optimization models, along with financial and economic analysis. Our first contribution proposes the design and application of a sustainability evaluation method integrating the life cycle approach and the optimization of the value creation network as part of a multi-objective mathematical model. The proposed model provides a roadmap for sustainable bioenergy investments, minimizing GHG emissions and maximizing the financial value of the biorefinery over a long-term planning horizon while ensuring optimal management of the incubator activity. In the second contribution, we present a sensitivity analysis of the proposed mathematical model according to well selected scenarios, with the development of a framework for communicating the model to the decision-makers. The purpose of this analysis is to assess the robustness of the model, to communicate to stakeholders the implications of investment choices in bioenergy production in an uncertain environment, and to identify opportunities for improving the effectiveness of the proposed model. In the third contribution, we propose an in-depth tax analysis using accelerated depreciation methods applied to investments in bioenergy. This analysis deals with the impact of the types of depreciations on the choice of bioenergy investment and on sustainability. Our goal is to provide decision makers with a set of decision support tools while strengthening their power to negotiate a tax policy favorable to bioenergy investment. In this part, it was highlighted that the choice of the investment coupled with the choice of its depreciation way offers the investor a more complete visibility on the practical consequences of the investment in the bioenergetics field with respect to prevalent tax legislation. This reinforces the public-private partnership and determines the level of public interventionism needed for the success of the expected transformation of the P&P sector. The social impact analysis and stochastic programming approaches for the robust study were not addressed by this work, they were presented as research perspectives.
Chirat, Christine. "Effet de l'ozone sur les hydrates de carbone et la lignine des pâtes à papier chimiques : application au blanchiment." Grenoble INPG, 1994. http://www.theses.fr/1994INPG0049.
Full textJaeger, Christiane. "Photocolorations des pâtes à papier à haut rendement : études photophysique et photochimique de molécules phénoliques non carbonylées, modèles de lignine." Bordeaux 1, 1993. http://www.theses.fr/1993BOR10537.
Full textNoutary, Carole. "Photostabilisation des pâtes à papier à haut rendement blanchies et étude photochimique d'un modèle phénolique de lignine à structure stilbénique." Bordeaux 1, 1994. http://www.theses.fr/1994BOR10510.
Full textLongpré, Jean-Michel. "L'usine de pâtes et papier de Windsor (Québec) de 1864 à nos jours ; analyse d'un processus cyclique de reconversion industrielle." Mémoire, Université de Sherbrooke, 1993. http://hdl.handle.net/11143/11156.
Full textBlanc, Béatrice. "L'ozone dans le procédé de fabrication de pâtes à papier chimiques blanches : étude de la décomposition et de la réactivité de l'ozone sur des solides divisés et des fibres cellulosiques en phase gazeuse." Toulouse, INPT, 1998. http://www.theses.fr/1998INPT009G.
Full textCael, Cédric. "Compréhension des mécanismes de déstabilisation des substances dissoutes et colloïdales contenues dans les mélanges de pâtes à papier recyclée et mécanique : proposition de solutions pour limiter le nombre de casses stickies." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0068/document.
Full textDuring the manufacturing of paper pulp, deinked and mechanical, dissolved and colloidal substances are released into the waters of the process. These can become unstable under certain conditions and form sticky agglomerates, called "stickies". The presence of these agglomerates generates disturbances in the formation of the sheet on the paper machine, including breaks. The works presented in this thesis show the impact of the level of extractible, obtained in an automated manner through the establishment of a sensor, on the occurrence of the breaks of stickies origin. On the other hand, the ageing of deinked pulp has been identified as a cause of physico-chemical changes of the pulp, leading to the destabilization of dissolved and colloidal substances from mechanical and deinked pulps during the mixing phase. Finally, solutions have been proposed to limit the phenomenon of agglomeration of dissolved and colloidal substances and reduce the number of breaks on the machine
Machani, Mahdi. "Approches d'aide à la décision pour une transformation efficace de l'industrie forestière au Canada : cas des compagnies de pâtes et papiers." Doctoral thesis, Université Laval, 2014. http://hdl.handle.net/20.500.11794/25420.
Full textBurlat, Vincent. "Étude immunocytochimique de la distribution ultrastructurale des lignines dans la paille de blé et de son influence sur le mode d'action des champignons ligninolytiques : application aux pâtes à papier." Université Joseph Fourier (Grenoble ; 1971-2015), 1997. http://www.theses.fr/1997GRE10100.
Full textDos, Santos Nuno Miguel. "Influence de traitements chimiques et enzymatiques sur la dissolution de pâtes de bois dans NaOH-eau." Phd thesis, Ecole Nationale Supérieure des Mines de Paris, 2013. http://pastel.archives-ouvertes.fr/pastel-00978915.
Full textTrinh, Thanh. "Contribution à l'étude de la délignification et du blanchiment des pâtes cellulosiques par le bioxyde de chlore ou l'eau oxygénée dans un réacteur agité à alimentation programmée." Grenoble INPG, 1993. http://www.theses.fr/1993INPG0100.
Full textAdès, Julie. "L'impact du cadre réglementaire fédéral de réduction d'émissions de gaz à effet de serre de 2007 sur les choix des sources d'énergie de l'industrie québécoise des pâtes et papiers." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/26836/26836.pdf.
Full textNeto, Carlos de Pascoal. "Le bois d'Eucalyptus globulus Labill : délignification par les procédés alcalins et par solvolyse oxydante en milieux éthanol/eau et acide acétique/eau." Grenoble INPG, 1992. http://www.theses.fr/1992INPG0020.
Full textCaverivière, Valérie. "La règlementation environnementale et la productivité dans l'industrie canadienne des pâtes et papiers, une évaluation empirique." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0007/MQ43794.pdf.
Full textRuzinsky, Frantisek. "Application de la mise en pâte d'explosion au recyclage et désencrage du papier." Thèse, Université du Québec à Trois-Rivières, 2000. http://depot-e.uqtr.ca/6655/1/000672750.pdf.
Full textCarboni, Carmela. "Utilisation des enzymes pour le traitement des déchets solides et des effluents des industries des pâtes et papiers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1993. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/MQ26554.pdf.
Full textCourtemanche, Mario. "Traitement des eaux usées d'une usine de pâtes et papiers par le procédé de biofiltration ACTICONTACT." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1996. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq21739.pdf.
Full textAtherley, Michelle Dale. "L'organisation de la fonction de gestion environnementale, une étude de cas : le secteur des pâtes et papiers." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0018/MQ57389.pdf.
Full textBehrooz, Eshkiki Rabi. "Valorisation de fibres de papiers récupérés par traitement chimique de délignification : réactivité des pâtes mécaniques et chimiques." Grenoble INPG, 2006. http://www.theses.fr/2006INPG0001.
Full textRecycled pulps fibres originate from mechanical and chemical pulps mixtures and exhibit important structural and chemical differences. The study herein reported aims at determining significant factors that affect the chemical reactivity of recycled pulps with oxidizing bleaching agents. It was found that the ratio between lignin content and kappa number of pulps was a good oxidability index. The kraft pulp value was 30% lower than the mechanical pulp value. This was imparted to the important role played by phenolic OH groups in lignins. A confirmation of this was obtained by chemical modification of lignin using sodium periodate and diazomethane, by spectroscopic analysis using FTIR and 13C NMR, and by studies on lignin model compounds. Then, an original and simple method was developed for the analysis of the phenolic OH groups in pulps without lignin extraction, so-called in situ analysis. It is based on the selective reaction of chlorine dioxide with phenolic OH groups without action on other structures. The method was successfully compared to 13C NMR analysis. The effects of oxidizing bleaching reagents such as C102, C12, 02, 03, and alkaline treatments were also evaluated. The results were in general accordance with the reaction mechanisms presented in the literature. Furthermore, a chemical method for the analysis of quinone groups in lignins was also developed, based on the in situ analysis of phenolic OH groups after quinones reduction. The results could be successfully compared with 31 P NMR spectroscopic analysis, the only available method to estimate an order of magnitude of quinone groups in lignins
Petit, Luc. "Etude de la corrosion d'alliages de fer et de nickel par les mélanges Na2SO4, Na2CO3, NaCl et Na2CO3, Na2S, Na2SO4, NaCl entre 300oC et 900oC : application aux chaudières de récupération (procédé KRAFT)." Grenoble INPG, 1986. http://www.theses.fr/1986INPG0119.
Full textLasry, Taoufiq. "Etude de l'ozonation comme moyen de délignification par l'analyse des produits d'ozonation de lignocellulose de peuplier et de composés modèles." Toulouse, INPT, 1990. http://www.theses.fr/1990INPT026G.
Full textLanteigne, Roch Lisa-Marie. "Utilisation des enzymes lipase et laccase pour améliorer la blancheur d'une pâte désencrée de papier journal." Thèse, Université du Québec à Trois-Rivières, 2010. http://depot-e.uqtr.ca/2005/1/030140241.pdf.
Full textVilleronce, Johan. "Approches chimique, écologique et règlementaire de la production de pâte à papier blanchie : application aux cas du sorgho sucrier et de l'eucaplyptus." Toulouse, INPT, 1998. http://www.theses.fr/1998INPT007C.
Full textBaril, Jason. "Rétention et drainage dans la fabrication des papiers d'impressions à base de pâte mécanique." Thèse, Université du Québec à Trois-Rivières, 2003. http://depot-e.uqtr.ca/3997/1/000102563.pdf.
Full textAlonso, Gutiérrez Maria de la Soledad. "Valorisation de la bagasse de l'agave tequilana W. Cv azul : caractérisation, étude de la digestibilité et de la fermentation des sucres." Toulouse, INPT, 2005. http://ethesis.inp-toulouse.fr/archive/00000185/.
Full textThe agro-industrial Agave tequilana bagasse byproduct from the tequila industry, was physical and chemical characterized. The physical characteristics indicated that these residues to be composed of heterogeneous fibrous and not fibrous organic material in form of fines particles. The chemical analysis show a content in cellulose of 43 %, lignin 15%, hemicelluloses 19 %, total nitrogen matter 3%, pectin 1 %, fatty 1 %, reducing sugar 5-10 % and ashes 6 %. In accord with these results we studied the different proceeding of valorization: Sugar free was fermented by Saccharomyces cerevisiae to produced ethanol (7,2 g/L); hemicellulosic hydrolyzed obtained by acid hydrolysis (H2SO4, HCl, 0. 1-1N 95°C) was fermented by Pachysolen tannophilus to produce ethanol (10 g/L) and xylitol (2. 9 g/L); alkaline extraction (NaOH 5 %) of hemicelluloses for paper production; chemical (NaOH, Ca(OH)2, NH4OH) and biologic (Phanerochaete crysosporium) pretreatment to increase bagasse's digestibility
Boé, Jean-François. "Rôle du manganèse et de la manganèse peroxydase de Phanerochaete chrysosporium, dans la biodégradation de la lignine." Toulouse 3, 1992. http://www.theses.fr/1992TOU30235.
Full textCogo, Eric. "Optimisation du stade d'ozonation de la pâte à papier kraft en vue de son intégration dans une séquence de blanchiment sans chlore." Toulouse, INPT, 1995. http://www.theses.fr/1995INPT013G.
Full textXu, Jian. "Recherche de procédés sélectifs de blanchiment sans chlore de la pâte à papier Kraft : contribution à l'amélioration du stade d'ozonation en présence d'additifs organiques." Toulouse, INPT, 1993. http://www.theses.fr/1993INPT069G.
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