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Papeles cerámicos catalíticos basados en cobalto y cerio impregnados con el método de spray húmedo para ser empleados en filtros de partículas diésel
(2021-11-05)
Este trabajo de tesis está orientado al desarrollo de catalizadores estructurados, específicamente papeles cerámicos catalíticos, para su aplicación como filtros de partículas emitidas por motores diésel. Para la preparación ...
Development of sepiolite/SiC porous catalytic filters for diesel soot abatement
(Elsevier Science, 2016-08)
Honeycomb monoliths made up of 70 wt.% sepiolite and 30 wt.% SiC were prepared and macropores were generated in the honeycomb structure by introducing a temporary additive with the aim of obtaining an adequate porosity to ...
Catalytic Paper Filters for Diesel Soot Abatement: Studies at Laboratory and Bench Scales
(Springer, 2020-08)
A scaling-up of the impregnation process for the preparation of catalytic ceramic papers was developed by which Co and Ce oxides were incorporated on to a ceramic paper structure. To this end, a spray generator and a vacuum ...
Structured catalysts based on sepiolite with tailored porosity to remove diesel soot
(Elsevier, 2015-06)
Wall-flow monolithic filters are commonly made of silicon carbide or cordierite and present high porosity, but low surface area. Alternatively, wall-flow monoliths with high surface area can be employed as support for ...
Desarrollo de monolitos catalíticos de mallas metálicas apiladas para la eliminación de contaminantes provenientes de motores diésel
(2020-07-29)
Los motores diésel son cuestionados debido a los contaminantes que emiten, los cuales tienen un efecto adverso en la salud y el medioambiente. Estos gases de escape están compuestos por material particulado y compuestos ...
Análise de dados laboratoriais do sistema de limpeza da caixa de transmissão
(Universidade Tecnológica Federal do ParanáCuritibaDepartamento Acadêmico de Eletrotécnica, 2014-04-11)
The present job aims at analyzing laboratory data of particles, which are retained after filtering of hydraulic oil samples, a process that is done to control the level of cleanliness of the gearbox. The control of this ...
Properties advanced of the silicon nitride based ceramics and recent performance on automotive parts manufacture by machining process: Advanced Ceramics, demand Forecast
(2008-12-01)
Automotive parts manufacture by machining process using silicon nitride-based ceramic tool development in Brazil already is a reality. Si 3N4-based ceramic cutting tools offer a high productivity due to their excellent hot ...
Properties advanced of the silicon nitride based ceramics and recent performance on automotive parts manufacture by machining process: Advanced Ceramics, demand Forecast
(2008-12-01)
Automotive parts manufacture by machining process using silicon nitride-based ceramic tool development in Brazil already is a reality. Si 3N4-based ceramic cutting tools offer a high productivity due to their excellent hot ...
Analysis of the mass concentration and elemental composition of the fine particulate matter (PM2.5) in Cachoeira Paulista, São Paulo: from September 2010 to September 2011
(Sociedade Brasileira de MeteorologiaFlorianópolis, 2013)
The goal ofthis study is analyze the effect ofthe meteorological parameters on the
variability ofthe mass concentration and elemental composition ofPM2.5 (fine particulate
matter) in Cachoeira Paulista, city located in ...