Littérature scientifique sur le sujet « Catalyst aging »
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Articles de revues sur le sujet "Catalyst aging"
Schütz, Jochen, Heike Störmer, Patrick Lott et Olaf Deutschmann. « Effects of Hydrothermal Aging on CO and NO Oxidation Activity over Monometallic and Bimetallic Pt-Pd Catalysts ». Catalysts 11, no 3 (25 février 2021) : 300. http://dx.doi.org/10.3390/catal11030300.
Texte intégralWang, Tae Joong, et In Hyuk Im. « Experimental and kinetic analysis of hydrothermal aging effects on ammonia adsorption capacity over a commercial Cu-zeolite selective catalytic reduction catalyst ». Proceedings of the Institution of Mechanical Engineers, Part D : Journal of Automobile Engineering 233, no 12 (28 novembre 2018) : 3030–42. http://dx.doi.org/10.1177/0954407018814950.
Texte intégralKiss, Ernő, et Goran Boskovic. « Impeded solid state reactions and transformations in ceramic catalysts supports and catalysts ». Processing and Application of Ceramics 6, no 4 (2012) : 173–82. http://dx.doi.org/10.2298/pac1204173k.
Texte intégralZhang, Wei Jun, Jin Hu, Hong Luo, Li Shen, Hua Tan et Lin Su. « Relation between Cell Density and PM Content Investgation of Three-Way Catalyst ». Advanced Materials Research 624 (décembre 2012) : 291–94. http://dx.doi.org/10.4028/www.scientific.net/amr.624.291.
Texte intégralMorosanu, Eduard Alexandru, Fabio Salomone, Raffaele Pirone et Samir Bensaid. « Insights on a Methanation Catalyst Aging Process : Aging Characterization and Kinetic Study ». Catalysts 10, no 3 (2 mars 2020) : 283. http://dx.doi.org/10.3390/catal10030283.
Texte intégralSong, Chaoming, Lihong Zhang, Zhenguo Li, Yiren Lu et Kaixiang Li. « Co-Exchange of Mn : A Simple Method to Improve Both the Hydrothermal Stability and Activity of Cu–SSZ-13 NH3–SCR Catalysts ». Catalysts 9, no 5 (17 mai 2019) : 455. http://dx.doi.org/10.3390/catal9050455.
Texte intégralKawanami, Yasuhiro, et Ryo Yanagita. « Practical Enantioselective Reduction of Ketones Using Oxazaborolidine Catalysts Generated In Situ from Chiral Lactam Alcohols ». Molecules 23, no 10 (20 septembre 2018) : 2408. http://dx.doi.org/10.3390/molecules23102408.
Texte intégralKhandavalli, Sunilkumar, Jaehyung Park, Robin Rice, Guido Bender, Deborah J. Myers, Michael Ulsh et Scott A. Mauger. « Tuning the Rheology of Anode Inks with Aging for Low-Temperature Polymer Electrolyte Membrane Water Electrolyzers ». ECS Meeting Abstracts MA2022-02, no 40 (9 octobre 2022) : 1483. http://dx.doi.org/10.1149/ma2022-02401483mtgabs.
Texte intégralZhao, Hong Xia, et Hai Liang Lü. « Study of Co/ZrO2 Catalysts in Fischer-Tropsch Synthesis ». Advanced Materials Research 850-851 (décembre 2013) : 120–23. http://dx.doi.org/10.4028/www.scientific.net/amr.850-851.120.
Texte intégralJiang, J. C., X. Q. Pan, G. W. Graham, R. W. McCabe et J. Schwank. « Transmission Electron Microscopy Studies of Pd Encapsulation by Ceria-Zirconia Oxides ». Microscopy and Microanalysis 4, S2 (juillet 1998) : 724–25. http://dx.doi.org/10.1017/s1431927600023746.
Texte intégralThèses sur le sujet "Catalyst aging"
Li, Haitao. « Supercritical carbon dioxide aided preparation of nickel oxide/alumina aerogel catalyst ». [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001090.
Texte intégralMOROSANU, EDUARD ALEXANDRU. « Catalytic processes for CO2 conversion into Synthetic Methane ». Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2841162.
Texte intégralKandilli, Nur. « Development Of A Three Way Catalytic Converter For Elimination Of Hydrocarbons, Carbon Monoxide And Nitric Oxide In Automotive Exhaust ». Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612546/index.pdf.
Texte intégralC and 600 º
C. Gas composition data from massspectrometer and CO analyzer and temperature data from thermocouple at the monolith entrance, are converted to conversion versus temperature graphs. Results of 26 activity tests are compared. Catalyst containing coimpregnated CZO support material with metals, showed the lowest loss of catalytic performance after exposure to SO2 during activity tests. Catalyst containing separately impregnated CZO support material, showed the highest resistance against thermal aging at 900 º
C and 1000 º
C, and even improved catalytic activity after aging. These catalysts showed higher resistances against the applied procedures than the commercial catalyst.
Birgersson, Henrik. « Development and Assessment of Regeneration Methods for Commercial Automotive Three-Way Catalysts ». Doctoral thesis, Stockholm, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3931.
Texte intégralPanpranot, Joongjai. « Hydrothermal aging of zeolite-based catalysts ». Morgantown, W. Va. : [West Virginia University Libraries], 1998. http://etd.wvu.edu/templates/showETD.cfm?recnum=274.
Texte intégralTitle from document title page. Document formatted into pages; contains xi, 84 p. : ill. Includes abstract. Includes bibliographical references (p. 64-67).
Blades, Luke Aubrey William. « Ageing mechanisms in automotive catalysts ». Thesis, Queen's University Belfast, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.695255.
Texte intégralWoods, Andrew John. « Ageing and characterisation of automotive catalysts ». Thesis, Queen's University Belfast, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486263.
Texte intégralRachele, Karen Gonçalves. « Estudo de catalisadores modelo à base de CeO2-ZrO2 dopado com cobre para controle de emissões de NOx ». Universidade do Estado do Rio de Janeiro, 2012. http://www.bdtd.uerj.br/tde_busca/arquivo.php?codArquivo=5048.
Texte intégralConvencionalmente, metais nobres são empregados como metais ativos em catalisadores automotivos, mas o uso de cobre vem sendo estudado pelo fato de promover sítios ativos para adsorção química e redução de NOx. Diante deste contexto, esta dissertação visa testar novas formulações de catalisadores, com foco em seu desempenho na reação de redução do NO pelo CO e sua seletividade a N2. Foram avaliados o método de adição de cobre no preparo e os teores de cobre utilizados na preparação. Os métodos de adição utilizados foram impregnação a seco (IS), reação em estado sólido (RS) e coprecipitação (CO). Os teores de cobre estudados ficaram entre 0,36 e 6,9% (m/m). Além disso, foi estudado o impacto no desempenho do catalisador após envelhecimento térmico a 950C por 12h. Foram empregadas as seguintes técnicas de caracterização textural e físico-química como espectrometria de absorção atômica, fisissorção de N2, difração de raios X, espectroscopia Raman e redução a temperatura programada. Os catalisadores também foram avaliados na reação de redução do NO pelo CO. A análise textural indicou que o método de coprecipitação levou a características texturais diferentes dos outros catalisadores. Análises de DRX mostraram a formação de CuO cristalino para teores iguais ou superiores a 3,3% (m/m) de cobre. As análises de Redução a Temperatura Programada (RTP) indicaram que ocorreu uma forte interação na interface entre o suporte e as espécies de cobre dispersas, acompanhada da diminuição da temperatura de redução do CuO e da redução parcial da céria em temperaturas mais baixas. Os testes catalíticos mostraram um melhor desempenho dos catalisadores (IS) que apresentaram conversões mais elevadas em menores temperaturas. Com relação ao envelhecimento, observou-se uma diminuição significativa da eficiência dos catalisadores. Uma comparação com catalisadores à base de metal nobre mostrou um bom desempenho dos catalisadores à base de cobre, com a vantagem destes apresentarem emissão de N2O restrita a baixas temperaturas
Conventionally, noble metals are used as active metals in automotive catalytic converters, but the use of copper has been studied because copper promote active sites for chemical adsorption and reduction of NOx. Thus, this work aims to test new formulations of automotive catalysts, focusing on their performance in catalytic reduction of NO by CO and its selectivity to N2. The method of copper addition and the copper contents used in the preparation were evaluated. The addition methods used were dry impregnation (IS), solid state reaction (RS) and coprecipitation (CO). The copper contents studied were between 0,36 e 6,9 wt%. In addition, the impact on catalyst performance after thermal aging at 950 C for 12h was also studied. Textural and physico-chemical caracterization techniques were employed, such as atomic absorption spectrometry, N2 physisorption, X-ray diffraction, Raman spectroscopy and temperature programmed reduction. Catalysts were evaluated in the reduction reaction of NO by CO. The textural analysis indicated that addition of copper by the coprecipitation method led to textural characteristics different from the other catalysts. XRD analysis showed the formation of crystalline CuO for contents equal to or greater than 3,3 wt% of copper. TPR analysis indicated that there was a strong interaction at the interface between the substrate and the copper species dispersed together with the lowering of the temperature reduction of CuO and the partial reduction of ceria at lower temperatures. The catalytic activity results showed a better performance of the (IS) catalysts, which showed higher conversions at lower temperatures. Concerning the aging process, there was a significant decrease in the efficiency of the catalysts. A comparison with catalysts doped with noble metal showed good performance of the catalysts doped with copper, with the advantage of these presenting N2O emission restricted to low temperatures
Casapu, Maria Cristina. « NOx storage-reduction catalysts : material aspects, thermal ageing and reactivation ». kostenfrei, 2007. http://e-collection.ethbib.ethz.ch/view/eth:30178.
Texte intégralWang, Fagen. « Hydrogen production from steam reforming of ethanol over an Ir/ceria-based catalyst : catalyst ageing analysis and performance improvement upon ceria doping ». Phd thesis, Université Claude Bernard - Lyon I, 2012. http://tel.archives-ouvertes.fr/tel-00967128.
Texte intégralChapitres de livres sur le sujet "Catalyst aging"
Wang, Xueqin, et Xiangsheng Wang. « Aging and Coke Depositing on Nanometer ZSM-5 Zeolite ». Dans Combinatorial Catalysis and High Throughput Catalyst Design and Testing, 447–50. Dordrecht : Springer Netherlands, 2000. http://dx.doi.org/10.1007/978-94-011-4329-5_22.
Texte intégralPatel, Mogon, Steve Black et Julian Murphy. « Aging Complexities Induced by the Organotin Catalyst in Foamed Polysiloxane Elastomers ». Dans ACS Symposium Series, 16–25. Washington, DC : American Chemical Society, 2007. http://dx.doi.org/10.1021/bk-2007-0978.ch002.
Texte intégralVaisnav, S. Mithun, et Sivanesan Murugesan. « Temperature Control Methodology for Catalytic Convertor to Reduce Emissions and Catalyst Aging ». Dans Intelligent Manufacturing and Energy Sustainability, 239–47. Singapore : Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-6482-3_24.
Texte intégralWeber, S., J. C. W. Chien et Y. Hu. « Determination of the Titanium Oxidation States in a MgCl2-Supported Ziegler-Natta Catalyst (CW-Catalyst) During Aging and Polymerization ». Dans Transition Metals and Organometallics as Catalysts for Olefin Polymerization, 45–53. Berlin, Heidelberg : Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-83276-5_5.
Texte intégralShuai, Shijin, Yinhui Wang, Junfeng Chen et Jianhua Xiao. « Experimental Study of Influence of Gasoline Fuel with MMT on Aging Performance of Three-Way Catalyst ». Dans Lecture Notes in Electrical Engineering, 571–83. Berlin, Heidelberg : Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-33841-0_44.
Texte intégralBush, Ashley I., et Lee E. Goldstein. « Specific Metal-Catalysed Protein Oxidation Reactions in Chronic Degenerative Disorders of Ageing : Focus on Alzheimer's Disease and Age-Related Cataracts ». Dans Ageing Vulnerability : Causes and Interventions, 26–43. Chichester, UK : John Wiley & Sons, Ltd, 2008. http://dx.doi.org/10.1002/0470868694.ch4.
Texte intégralBailly, C., A. Benamar, F. Corbineau et D. Côme. « Changes in Superoxide Dismutase, Catalase and Glutathione Reductase Activities in Sunflower Seeds during Accelerated Ageing and Subsequent Priming ». Dans Basic and Applied Aspects of Seed Biology, 665–72. Dordrecht : Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-011-5716-2_74.
Texte intégralTian, Huiping, Congjun Huang et Zhongbi Fan. « Metals on a Novel USY Zeolite after Hydrothermal Aging ». Dans Catalyst Deactivation 2001, Proceedings of the 9th International Symposium, 351–58. Elsevier, 2001. http://dx.doi.org/10.1016/s0167-2991(01)80217-2.
Texte intégralBart, J. M., M. Prigent et A. Pentenero. « Study of hydrocarbons removal with a three-way automotive catalyst after severe thermal aging ». Dans Catalysis and Automotive Pollution Control III, Proceedings of the Third International Symposium CAPoC 3, 813–28. Elsevier, 1995. http://dx.doi.org/10.1016/s0167-2991(06)81477-1.
Texte intégralSarkany, A. « Self-poisoning and aging of Pd-Ag/Al2O3 in semi-hydrogenation of 1,3-butadiene : Effects of surface inhomogeneity caused by hydrocarbonaceous deposits ». Dans Catalyst Deactivation, Proceedings of the 7th International Symposium, 111–18. Elsevier, 1997. http://dx.doi.org/10.1016/s0167-2991(97)80145-0.
Texte intégralActes de conférences sur le sujet "Catalyst aging"
Hepburn, Jeffrey, Timothy Chanko, JoAnne McKenzie, Robert Jerger et Douglas Dobson. « OBD-II Threshold Catalyst Aging Process ». Dans 1997 SAE International Fall Fuels and Lubricants Meeting and Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 1997. http://dx.doi.org/10.4271/972853.
Texte intégralKim, Jeong Y., Yisun Cheng, Joseph E. Patterson, Paul M. Laing et Christine K. Lambert. « Modeling Study of Urea SCR Catalyst Aging Characteristics ». Dans SAE World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 2007. http://dx.doi.org/10.4271/2007-01-1580.
Texte intégralRuetten, Oliver, Stefan Pischinger, Carsten Küpper, Rolf Weinowski, David Gian, Dmitry Ignatov, Winston Betton et Michael Bahn. « Catalyst Aging Method for Future Emissions Standard Requirements ». Dans SAE 2010 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 2010. http://dx.doi.org/10.4271/2010-01-1272.
Texte intégralMooney, J. J., W. M. Rudy, L. A. Lautman et H. S. Hwang. « High Temperature Aging Cycle for European Catalyst Applications ». Dans 1985 SAE International Fall Fuels and Lubricants Meeting and Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 1985. http://dx.doi.org/10.4271/852098.
Texte intégralWang, Weidong, Shi Xu, Xiaoming Li, Gang Xu, Tianpeng Han, Jun Yue, Xinhua Li et Liwei Jia. « Study on Rapid Aging Method of CNG Catalyst ». Dans WCX SAE World Congress Experience. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 2022. http://dx.doi.org/10.4271/2022-01-0586.
Texte intégralBurkholder, S. P., et Barry J. Cooper. « Effect of Aging and Testing Conditions on Catalyst Performance ». Dans Automotive Industry in Expanding Countries. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 1991. http://dx.doi.org/10.4271/911734.
Texte intégralMcGuire, Nicholas E., Neal P. Sullivan, Robert J. Kee, Huayang Zhu, James A. Nabity, Jeffrey R. Engel, David T. Wickham et Michael Kaufman. « Hexaaluminate Catalysts for Fuel Reforming ». Dans ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/fuelcell2008-65231.
Texte intégralPetersson, Martin, Martin Bergqvist, Ingemar Gottberg, Jeffrey B. Hoke et Ronald M. Heck. « PremAir® Catalyst System - Long-term On-road Aging Results ». Dans International Fuels & Lubricants Meeting & Exposition. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 2000. http://dx.doi.org/10.4271/2000-01-2925.
Texte intégralNagashima, Ken, et Makoto Nagata. « Modeling of Catalyst Sintering and Study of Accelerated Aging Based on Pt/Al2o3 as a Model Catalyst ». Dans SAE World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 2007. http://dx.doi.org/10.4271/2007-01-1134.
Texte intégralCheng, Yisun, et Yinyan Huang. « Deactivation of Cu/Zeolite SCR Catalyst under Lean-Rich Aging Conditions ». Dans SAE 2010 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States : SAE International, 2010. http://dx.doi.org/10.4271/2010-01-1180.
Texte intégralRapports d'organisations sur le sujet "Catalyst aging"
Holladay, Jamelyn. Fundamental Understanding of Cu-zeolite SCR Catalyst Aging Mechanism - CRADA 452. Office of Scientific and Technical Information (OSTI), février 2021. http://dx.doi.org/10.2172/1827785.
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