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Artykuły w czasopismach na temat "Charbons actifs commerciaux"
Nko’o Abuiboto, Morvan Clotaire, Jérôme Avom i Richard Mpon. "Évaluation des propriétés de charbons actifs de résidus de Moabi (Baillonella toxisperma Pierre) par adsorption d'iode en solution aqueuse". Revue des sciences de l’eau 29, nr 1 (16.03.2016): 51–60. http://dx.doi.org/10.7202/1035716ar.
Pełny tekst źródłaAyele, J., B. Fabre i M. Mazet. "Influence de l'origine et de la nature des substances humiques sur l'adsorption de l'atrazine sur charbon actif en poudre". Revue des sciences de l'eau 6, nr 4 (12.04.2005): 381–94. http://dx.doi.org/10.7202/705181ar.
Pełny tekst źródłaKouamé, H. K., M. Touré, S. Simaro, D. F. Traoré i B. A. Ahouty. "Influence du charbon actif sur la callogenese des feuilles immatures du palmier a huile". African Crop Science Journal 31, nr 4 (6.12.2023): 463–73. http://dx.doi.org/10.4314/acsj.v31i4.7.
Pełny tekst źródłaHouas, A., I. Bakir, M. Ksibi i E. Elaloui. "Étude de l'élimination de bleu de méthylène dans l'eau par le charbon actif commercial CECA40". Journal de Chimie Physique et de Physico-Chimie Biologique 96, nr 3 (marzec 1999): 479–86. http://dx.doi.org/10.1051/jcp:1999139.
Pełny tekst źródłaRozprawy doktorskie na temat "Charbons actifs commerciaux"
Cossarutto, Laurent. "Équilibre et cinétique d'adsorption de sondes moléculaires sur charbons actifs commerciaux". Metz, 2000. http://docnum.univ-lorraine.fr/prive/UPVM_T_2000_Cossarutto_Laurent_SMZ0034.pdf.
Pełny tekst źródłaThis research work has been supported by the CNRS inside an European Research Group (GDRE) "Carbon Adsorbents and Environment". This fundamental study is devoted to the influence of activated carbon properties (porosity and surface chemistry) towards adsorption of Volatile Organic Compounds (VOC). Both the adsorption kinetics and thermodynamics are of critical importance in assessing the performance of active carbon beds for the adsorption of VOCs, in term of selectivity. First, energetic heterogeneity of the carbonaceus materials surface was analysed. This was carried out by both inverse gas chromatography at infinite dilution and low pressure argon adsorption methods. The results shown that adsorption energies between two kinds of activated carbon (chemical or physical activation) are markedly different. The second part of this work is devoted to the study of equilibrium and kinetic adsorption of few molecular probes. Adsorptives with varying hydrophilic/hydrophobic character were used. Water vapour adsorption experiments suggested that there exists a critical micropore size leading to a change in the dynamic adsorption process. The study of the adsorption alcohols has still showed discrepancies on adsorption mechanisms between the two classes of commercial active carbon
Cossarutto, Laurent Weber Jean-Victor. "Equilibre et cinétique d'absorption de sondes moléculaires sur charbons actifs commerciaux". [S.l.] : [s.n.], 2000. ftp://ftp.scd.univ-metz.fr/pub/Theses/2000/Cossarutto.Laurent.SMZ0034.pdf.
Pełny tekst źródłaRamirez, Vidal Pamela. "Matériaux nanoporeux à haute surface spécifique pour le stockage et la compression de l’hydrogène". Electronic Thesis or Diss., Université de Lorraine, 2021. http://www.theses.fr/2021LORR0178.
Pełny tekst źródłaIn this thesis, the hydrogen adsorption performance of three families of large surface area porous materials: hyper-crosslinked polymers (HCPs), commercial activated carbons (CACs) and metal-organic frameworks (MOFs) was studied. Two interconnected parts constituted this study: (i) the experimental evaluation of hydrogen storage performance in the three families of materials; and (ii) the modelling of hydrogen storage in CAC and MOF at temperatures between 77 and 273 K and at pressures up to 14 MPa. Irreversible deformation in HCPs after hydrogen adsorption at 77 K and 14 MPa is reported here for the first time. The hydrogen adsorption isotherms obtained up to 14 MPa were fitted with the Modified Dubinin-Astakhov equation in order to determine the physical meaning of their parameters, which had not been revealed until now. The results obtained in this thesis will allow the prediction of hydrogen adsorption capacities at specific temperatures and pressures after an adequate characterization of the adsorbent material texture, which represents a significant saving of time and resources. The thesis is divided in chapters related to each family of studied. Finally, the conclusions and perspectives of this study are presented.This work was carried out in the team 402 "Biosourced Materials" of the Institut Jean Lamour (IJL - UMR CNRS 7198), hosted by the “Ecole Nationale des Techniques et Industries du Bois” (ENSTIB), at the University of Lorraine. Several partners have been involved in this project, such as: the Instituto Nacional del Carbón (INCAR - CSIC) in Oviedo, Spain; and the Laboratoire Énergies et Mécanique Théorique et Appliquée (LEMTA-UMR 7563 CNRS-UL) in Vandoeuvre lès Nancy in France
Vuong, François. "Modélisation du comportement des cartouches de protection respiratoire : exposition à des atmosphères complexes de vapeurs organiques et effet des cycles d’utilisation". Thesis, Université de Lorraine, 2016. http://www.theses.fr/2016LORR0255/document.
Pełny tekst źródłaVolatile organic compounds (VOC) represent a chemical risk for workers. Respiratory protective cartridges are effective equipment against vapours exposure. The objective of the present PhD thesis is the modelling of cartridge exposure in more complex situations: presence of vapours mixture and reuse cycle, from a dynamic adsorption experimental study in column bed. Further to the contribution of R. Chauveau (PhD thesis -24/11/2014), the present manuscript extends the study vapours mixtures adsorption on activated carbon. The second section is devoted to model a cycle use in 3 steps (exposure - storage – reuse), for 6 VOC: acetone, acetonitrile, 2-butanone, cyclohexane, dichloromethane and ethanol. VOC mixtures exposure and kinetic study by the method of perturbative chromatography have been carried out. The service life is correctly predicted for acetone/ethanol and cyclohexane/heptane mixtures. A deviation has been observed for ethanol/cyclohexane mixture because the adsorption equilibrium has not been accurately reproduced by model. These works have also pointed out inconsistency in the preventive approach which assimilates a mixture exposure to single vapour exposure by the most volatile compound at concentration the sum of that of all components of the mixture. Regarding the risks related to cartridge reuse, immediate breakthrough upon reuse (IBUR) has been experimentally recorded. This behaviour can be described by a static diffusion model. The mass transfer in the particle by surface diffusion is the main reason. The risk of IBUR is higher for fast diffusing VOC: acetonitrile, acetone and dichloromethane. An assessment is suggested in order to distinguish the properties of the system which can influence the occurrence of IBUR