نتایج جستجو برای: zeolitic additives light olefins reduction of pollutant
تعداد نتایج: 21225281 فیلتر نتایج به سال:
Emission of N2O from mobile and off-road engine is now being currently regulated because of its high impact compared to that of CO2, thereby implying that N2O formation from the exhaust gas after-treatment system should be suppressed. Selective catalytic reduction using vanadium supported TiO2 catalyst in mobile and off-road engine has been considered to be major source for N2O emission in the ...
The ZnO/SiO2 semiconductor nanophotocatalysis was synthesized via sol-gel method. Also, theplatinum particles were loaded on the ZnO/SiO2 nanoparticles by photoreductive method. Thestructure of catalyst was confirmed by X-ray diffraction (XRD), scanning electron microscopy(SEM) andfourier transform infrared spectroscopy (FT-IR). The XRD patterns of ZnO particlesdisplayed the nanoparticles have ...
The fuel combustion in diesel engines can be improved by adding nanomaterials to the which result an reduction pollutant emissions and enhance quality of combustion. engine performance soot nanoparticles characteristics were evaluated this study with copper oxide (CuO2) rapeseed methyl ester (RME) under variable speeds. addition CuO2 RME significantly improve brake thermal efficiency (BTE) decl...
Ceramic-matrix composites containing TiC-TiN have been used in a variety of application because of their superior properties such as high hardness, good wear resistance and high chemical stability. In this research, effect of coke and coke/calcium beds in synthesis of Al 2O3-Ti(C, N) composites using alumino-carbothermic reduction of TiO 2 has been investigated. Al, TiO 2 and active ca...
With increasingly stringent emission and fuel consumption regulations, additives have been proved to a huge role in energy conservation reduction, new type of additive based on nitroparaffin has received worldwide attention. An experimental study was conducted with the aim developing an understanding additive’s effect 1.5L naturally aspirated PFI gasoline engine’s power performance, economy, em...
The implementation of light-driven catalytic processes in biocatalysis opens a golden window opportunities. We hereby report the merging photocatalytic C?C bond formation with enzymatic asymmetric reduction for direct conversion simple aldehydes and acrylates or unsaturated carboxylic acids into chiral ?-lactones. Tetrabutylammonium decatungstate (TBADT) is employed as photocatalyst to trigger ...
abstract the current study sets out 1) to investigate the strategic needs of iranian efl learners in reading literary and non-literary texts; 2) to shed some light on the differences between reading literary and non-literary texts; and 3) to specify the differences in the interaction of participants with texts while reading two literary subgenres ( i.e., short story and literary essays). to ...
Fuel additives incorporating nanosized ceria have been increasingly used in diesel engines as combustion promoters. However, few studies have assessed the impact of these nanotechnology-based additives on pollutant emissions. Here, we systematically compare emission rates of particulate and gaseous pollutants from a single-cylinder, four-cycle diesel engine using fuel mixes containing nanoceria...
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