Academic literature on the topic 'Gazéification'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Gazéification.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Journal articles on the topic "Gazéification"
-BERNARD, Alain. "Production électrique avec gazéification intégrée." Revue de l'Electricité et de l'Electronique -, no. 11 (1999): 53. http://dx.doi.org/10.3845/ree.1999.118.
Full textBernard, A., J. M. Duchêne, and D. Isler. "Etude de la gazéification du coke." Revue de Métallurgie 82, no. 12 (December 1985): 849–60. http://dx.doi.org/10.1051/metal/198582120849.
Full textHou, Sophie. "La Gazéification De L’oblast D’Irkoutsk : Entre Volontarisme et Échec Annoncé ?" Revue d’études comparatives Est-Ouest N° 44, no. 2 (June 1, 2013): 109–39. http://dx.doi.org/10.3917/receo.442.0109.
Full textHou, Sophie. "La Gazéification De L’oblast D’Irkoutsk : Entre Volontarisme et Échec Annoncé ?" Revue d’études comparatives Est-Ouest 44, no. 02 (June 2013): 109–39. http://dx.doi.org/10.4074/s0338059913002052.
Full textBoumahmaza, M., EM Banane, L. Belkbir, and SAA Jayaweera. "Gazéification d’un charbon du Maroc avec un mélange air/azote par thermogravimétrie." Journal de Chimie Physique 88 (1991): 2355–62. http://dx.doi.org/10.1051/jcp/1991882355.
Full textLe Bolay, N., C. Laguerie, and H. Angelino. "Modélisation cinétique de la gazéification à la vapeur d'eau de cokes en lit fluidisé. I. Approche simplifiée." Chemical Engineering Journal 41, no. 3 (September 1989): 125–37. http://dx.doi.org/10.1016/0300-9467(89)80024-3.
Full textLe Bolay, N., C. Laguerie, and H. Angelino. "Modélisation cinétique de la gazéification à la vapeur d'eau de cokes en lit fluidisé. II. Modélisation du comportement hydrodynamique du l." Chemical Engineering Journal 41, no. 3 (September 1989): 139–48. http://dx.doi.org/10.1016/0300-9467(89)80025-5.
Full textTachikart, M., J. H. Davidson, F. Armanet, and G. Béranger. "Etude de la corrosion d'alliages FeCrNiAl dans des milieux de simulation des atmosphères de gazéification du charbon à 500–700 °C." Materials Science and Engineering 87 (March 1987): 63–71. http://dx.doi.org/10.1016/0025-5416(87)90361-2.
Full textNZALI, Timothée, Jean-Clair DUCHESNE, Christiane JACQUEMIN, and Jacqueline VANDER AUWERA. "Pyrométamorphisme induit par la gazéification souterraine de niveaux charbonneux du Westphalien dans le bassin de Mons (Belgique) [Pyrometamorphism induced by underground coal gasification of Westphalian beds in the Mons basin (Belgium)]." Geologica Belgica 2, no. 3-4 (June 1, 2000): 221–34. http://dx.doi.org/10.20341/gb.2014.020.
Full textBOUDET, Nicolas, Pierre MARION, and Magalie ROY-AUBERGER. "Gazéification du charbon." Opérations unitaires. Génie de la réaction chimique, December 2009. http://dx.doi.org/10.51257/a-v1-j5200.
Full textDissertations / Theses on the topic "Gazéification"
Paviet, Frédéric. "Vapo-gazéification étagée des ordures ménagères." Compiègne, 2007. http://www.theses.fr/2007COMP1721.
Full textIn recent years, the quantity of municipal solid wastes (MSW) has increased significantly in the EU and other industrialised and developing countries raising the question of its sustainable disposal management. Within the waste management hierarchy, thermal disposal especially gasification with energy recovery is a desired and viable option. The gasification of solid fuels such as biomass is one of the most promising technologies for thermo chemical conversion. This process leads to a fuel gas suitable for efficient gas turbines feeding. The successfful design and modelling of a gasifier requires reliable kinetic data. The purpose of this work is first to study the steam gasification kinetics of chars produced by municipal wastes pyrolysis. The MSW are modelled as a mixture of four organic constituents: paper, wood, plastics, and vegetables. The various char samples are obtained by pyrolysis of each waste constituent, in a fixed bed reactor. These chars are used as raw materials in steam gasification experiments. The kinetics parameters, with respect to H20, together with the influence of the char's physical properties are experimentally determined. A kinetic expression for the gasification reaction, based on the random pore model is deduced. Then 1D isothermal and non-equimolar reaction-diffusion model is developed in order to assess the diffusional effects taking place during steam gasification in a fixed bed. The model takes into account local chemical reaction rate and effective transport properties dependant on time and position within the char bed. Inter particle diffusion and structural changes of the char bed during the gasification are taken into account. The model shows a good agreement with the experimental results, obtained at various bed heights, and point out the relevant rote played by diffusional effects within a fixed bed reactor. The kinetic results are used to estimate, in a down dyaft gasifier, the total carbon yield conversion as a fonction of botte the mass fraction of stagnant zones within the bed char and of the characteristic length of these stagnant zones. Finally, in thermal treatment main of the initial energy is transformed into tar. The spontaneous tar decomposition by thermal treaent is investigated. The thermal cracking kinetic of MSW pyrolysis vapours is established
Amahzoune, El Mustapha. "Pyrolyse-flash et gazéification d'anas de lin." Toulouse 3, 1987. http://www.theses.fr/1987TOU30296.
Full textEnergetic valorization of flas straw by a thermic way is studied. A thermal treatement , flash pyrolysis, is realised under various flow of carrier gas, the emperature range being 700-1000°C ; in some cases a catalyst is used. In the first part, temperature and carrier gas flow, nitrogen, influence on gas composition is studied : high temperature favours flax straw decomposition into light gases. At 1000°C, and 1 l/min nitrogen flow, the gas composition is : hydrogen 29 %, carbon monoxyde 42 %, carbon dioxyde 11 %, methane 15 %, other hydrocarbon, C2, 3 % ; carbon gasified ratio is about 80 %. In the second part, pyrolysis-gasification is studied with a carrier gas containing oxygen (until reaching the air composition) ; carbon gasified ratio reaches 98 % (1000°C). With 02 % = 5 the Gross CalorificValue, GCV, of the pyrolysis gas is 16200 KJ/Nm3 at 900°C. Several catalysts have been used ; a steel specifically treated is particularly active : methane production is increased, 24 % at 900°C, and so is the GCV of the gas, 19400KJ/Nm3. Flash -pyrolysis of flax straw results are similar with those of cellulose and wood finely divided. By the side, comparison between classic carbonisation and flash pyrolysis shows the great efficiency of the thermic flash
Le, Dirach Jocelyn. "Contribution à l'industrialisation d'un procédé de gazéification." Thesis, Vandoeuvre-les-Nancy, INPL, 2008. http://www.theses.fr/2008INPL024N.
Full textDiversification of energy sources based on renewable energies must contribute to reduce the share of fossil fuels in power generation, in agreement with the European directives which impose to France to generate 21% of its energy from renewable energies before 2010.The present work reported in this manuscript focus on the industrialization of a wood gasification process for the production of heat and electricity. Experiments of wood fast pyrolysis were performed under various experimental conditions (flux density between 0.9 and 6.3 MW/m2, moisture between 0 and 60%) for understanding and analysis of fundamental phenomena related to the gasification of wood. The various products (char, condensible vapours and gases) are recovered and analyzed. The results help to determine the yields of each of the products for various experimental conditions.The numerical modeling of wood pyrolysis phenomena has been achieved on the basis of kinetic data found through literature review and then compared to the experimental results. Even if there is no perfect agreement, orders of magnitude are respected. These models are used as a basis to develop a gasification reactor model for Güssing DFB reactor, including the hydrodynamics description, wood pyrolysis, char gasification, vapours and gases reactions. This model is used to determine the efficiency of the reactor and its various operating parameters
Deydier, Alexandre. "Modélisation d’un réacteur de gazéification a lit fixe." Thesis, Pau, 2012. http://www.theses.fr/2012PAUU3012/document.
Full textOne of the thematics of the “Laboratoire Thermique Energétique et Procédés de Pau” is the study and the valorization of waste as pyrolysis, combustion and gasification for example. In this context, this work deals with modeling of heat, mass and momentum transport in a multiphase multi components reactive medium for a fixed bed gasifier. Conservation equations are first written for each phase. The macroscopic partial differential equations are expressed by integrating these microscopic conservation laws over a representative volume. This change of scale, described in this work, leads to a homogeneous system of equations. This model is applied to the case of the gasification of waste process of the Europlasma company named CHO-Power. The unsteady two-dimensional simulations of the problem allowed to highlight the different mechanisms present during the process and a number of locks in obtaining convergence path leading to the steady state
Schmitt, Nicolas. "Etude du comportement thermomécanique du charbon dans le cadre de la gazéification souterraine : analyse de la stabilité d'une liaison de gazéification." Paris 6, 1987. http://www.theses.fr/1987PA066618.
Full textMorin, Mathieu. "Gazéification de la biomasse en double lit fluidisé circulant : étude des réactions élémentaires de gazéification et de combustion du char et de reformage des goudrons." Thesis, Toulouse, INPT, 2017. http://www.theses.fr/2017INPT0089/document.
Full textThe thermochemical conversion of biomass at high temperature (>700°C) in Fast Internally Circulating Fluidized Bed (FICFB) is a promising alternative route to fossil fuels (oil, coal) to produce syngas which can be used in several applications. The aim of the present work is to develop methodologies as well as theoretical and experimental tools for determining the intrinsic kinetic of biomass transformations (biomass pyrolysis, char gasification and combustion, cracking and reforming of tars). Firstly, a fluidized bed reactor has been designed and built at the Laboratory of Chemical Engineering (LGC). This reactor can operate for temperatures between 20 and 1000°C with a well-defined gas supply (N2, O2, H2, H2O and tars). A sampling and analysis gas system enables the continuous quantification of the non-condensable gases and tars molar fractions. A hydrodynamic and thermal study enabled the determination of the operating conditions for each experimental study. Secondly, the char gasification and combustion was performed in the fluidized bed reactor. The influence of the operating conditions (temperature and compounds partial pressure) led to the modelling of the different solid transformation kinetics. Besides, in the case of char combustion, a reaction scheme was proposed and the kinetic obtained in the fluidized bed was compared to that obtained in a thermogravimetric analyzer. Finally, a study on the tar reforming in a fluidized bed reactor highlighted the effect of the reactive atmosphere on the reaction scheme of toluene conversion over olivine and char
Amri, Abdallah. "Contribution à la modélisation progressive d'un réacteur de gazéification du bois à lit fluidisé : application à l'intégration énergétique du réacteur dans la boucle de synthèse du méthanol." Châtenay-Malabry, Ecole centrale de Paris, 1987. http://www.theses.fr/1987ECAP0042.
Full textBoujjat, Houssame. "Modélisation, optimisation et extrapolation d’un réacteur solaire de gazéification de biomasse." Thesis, Université Grenoble Alpes, 2020. http://www.theses.fr/2020GRALI049.
Full textThe present thesis proposes to study a novel spouted bed solar reactor for biomass thermochemical gasification from laboratory to industrial scale by combining numerical simulations and lab-scale experimentations. The main objective is to provide new insights into the reactor operation in order to improve its performance, flexibility and industrial integration. A multiphysics numerical model of the reactor was developed using the Fluent© software for the simulation of solar steam gasification of wood particles. The model takes into account the two-phase solid/gas flow using the DPM (Discrete Phase Modelling) approach in interaction with radiation and chemistry. An experimental validation step at 1200°C showed Cold Gas Efficiencies higher than 1 thanks to the efficient valorization of solar energy and a Carbon Conversion Efficiency approaching 80%. The simulations provided key information on the particles solar conversion within the solar cavity and allowed to identify paths for improving the conversion. The use of inert bed materials as a heat transfer medium inside the cavity appeared judicious. This solution was examined both numerically using a granular Eulerian approach, and experimentally at 1200°C and 1300°C. A maximum relative improvement of the carbon conversion efficiency by 8% was this way achieved. The variability of solar energy is one of the critical obstacles hindering the scale-up of the technology. In order to ensure a continuous syngas production whatever the solar resource, the solar reactor was hybridized thanks to partial feedstock oxy-combustion. The study showed that the injection of a controlled amount of O2 is a relevant solution to overcome solar energy variability and to control the reactor temperature. A dynamic 0D model was then developed to predict the temperature and syngas production evolution at MWth scale according to two heating modes: solar-only and hybrid solar-combustion. Annual simulations were subsequently performed to predict reactor performance, reactants consumption and gas production volumes. These data were used to analyze the technical and economic feasibility of the process for the industrial production of hydrogen
Nowakowska, Milena. "Conversion thermique des goudrons provenant de la gazéification de la biomasse." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0092/document.
Full textTars are compounds limiting the optimal operation of thermochemical processes of biomass conversion. The reactions of these compounds were studied to better understand their formation, maturation and decay. The study of the decomposition of three model compounds from biomass was conducted with a jet stirred reactor. The studied compounds were anisole and guaiacol, representing the primary tars from lignin and the 5-methylfurfural, representing the primary tars from cellulose. The pyrolysis and the oxidation of these compounds were performed at atmospheric pressure, at a residence time of 2 s and at high dilution, and for a wide range of temperatures. The oxidation was carried out in stoichiometric conditions ([phi]= 1). Reaction products were quantified by gas chromatography and identified using mass spectrometry. Detailed kinetic mechanisms for the pyrolysis and oxidation (based on a combustion model for light aromatics) have been developed for each compound. Models predict well the conversion of reactants and the formation of the main products
Gerun, Luc. "Étude numérique et expérimentale de la valorisation énergétique du bois par gazéification." Nantes, 2007. http://www.theses.fr/2007NANT2061.
Full textGasification is a thermochemical process of biomass (wood waste, straw,…) conversion into fuel gas, which is then used to run boiler, engine or gas turbine and thus to produce “green” energy. Gasification can be divided into three main steps, which occur successively: drying/pyrolysis: the biomass is dried then converted into gas, tar and coke under the action of heat; oxidation: the produced gas is partially burnt with air to provide the heat necessary to the other endothermic chemical reactions; reduction: the produced coke reacts with gases and is converted into gas. The study of these three stages made it possible to identify, characterize and simulate their operation. The key-parameters are the heating rate and the final temperature for pyrolysis, the air flowrate and its injection velocity for oxidation, the temperature and the residence time for the reduction. All these observations led to making of a prototype, composed of three engines to separate the three stages physically. The objective is to optimize the parameters of operation to reduce the production of tar, one of the principal barriers to the development of the gasification. Its operation is promising because it produces a gas satisfying the tolerances of the engines: LHV of approximately 5,2 MJ. Nm-3, absence of heavy tar, PAH concentration lower than 10 Mg. Nm-3. It thus opens encouraging prospects to develop a commercial gasifier optimised for the installations of small to average power
Books on the topic "Gazéification"
Rezaiyan, John. Gasification technologies: A primer for engineers and scientists. Boca Raton: Taylor & Francis, 2005.
Find full textHigman, Christopher. Gasification. Amsterdam: Gulf Professional, 2003.
Find full textSouza-Santos, Marcio L. de. Solid fuels combustion and gasification: Modeling, simulation, and equipment operations. 2nd ed. Boca Raton: Taylor & Francis, 2010.
Find full text(Canada), Bioenergy Development Program, ed. Economic feasibility of wood gasification using a plasma pyrolysis reactor =: La faisabilité économique de la gazéification du bois à l'aide d'un réacteur de pyrolyse utilisant du plasma. Point Claire, P.Q: Pulp and Paper Research Institute of Canada, 1985.
Find full textQuaak, Peter. Energy from biomass: A review of combustion and gasification technologies. Washington, D.C: World Bank, 1999.
Find full textCanada. Groupe consultatif national sur les sciences et technologies relatives à l'énergie durable. Construire des alliances puissantes: Priorités et orientations en sciences et en technologies énergétiques au Canada : rapport du Groupe consultatif national sur les sciences et technologies relatives à l'énergie durable. [Ottawa]: Groupe consultatif national sur les sciences et technologies relatives à l'énergie durable, 2006.
Find full textInternational Conference on Coal Science (1987 Maastricht, Netherlands). 1987 International Conference on Coal Science: Proceedings of the 1987 International Conference on Coal Science, Mastricht, the Netherlands,October 26-30, 1987. Amsterdam: Elsevier, 1987.
Find full textInternational Conference on Coal Science (1987 Maastricht, Netherlands). 1987 International Conference on Coal Science: Proceedings of the 1987 International Conference on Coal Science, Maastricht, The Netherlands, October 26-30, 1987. Amsterdam: Elsevier, 1987.
Find full textMarcio Luiz de Souza-Santos. Solid fuels combustion and gasification: Modeling, simulation, and equipment operation. New York: Marcel Dekker, 2004.
Find full textSouissi, Nefaa. Etude et conception d’un réacteur de pyro-gazéification étagé. Omniscriptum, 2015.
Find full textBook chapters on the topic "Gazéification"
Damien, Alain. "9. La gazéification." In La biomasse énergie, 119–32. Dunod, 2013. http://dx.doi.org/10.3917/dunod.damie.2013.01.0119.
Full textReports on the topic "Gazéification"
Captage de CO2 - gazéification à la centrale alimentée au charbon propre. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2009. http://dx.doi.org/10.4095/261737.
Full text