DEVELOPMENT OF THREE WAY CATALYTIC CONVERTER FOR AUTOMOTIVE EXHAUST GAS

Development of ceria and tungsten promoted nickel/alumina catalysts for steam reforming of diesel Bozdag, A. Arslan; Kaynar, A. D. Deniz; Doğu, Timur; Sezgi, Naime Aslı (Elsevier BV, 2019-12-01) Use of diesel fuel for on-board hydrogen production for auxiliary power units (APUs) through diesel steam reforming (DSR) reaction is a promising route. Coke minimization for cheap and active Ni/Al2O3 catalyst is necessary for long term operation in DSR reaction. Coke minimization with high hydrogen productivity can be accomplished through the optimization of operating conditions and promoting the Ni/Al2O3 catalyst with ceria (CeO2) and tungsten (W) which attracts attention with their coke resistive propert...
Numerical study of combustion and emission characteristics of dual-fuel engines using 3D-CFD models coupled with chemical kinetics Maghbouli, Amin; Saray, Rahim Khoshbakhti; Shafee, Sina; Ghafouri, Jafar (2013-04-01) Dual-fuel combustion provides a relatively easy and inexpensive alternative to conventional diesel engine combustion by drastically reducing fuel consumption with comparable performance characteristics. Accurate simulation of the dual-fuel combustion requires utilization of a detailed chemistry combined with a flow simulation code. In the present study, the combustion process within the diesel and diesel/gas dual-fuel engine is investigated by use of a coupled 3D-CFD/chemical kinetics framework. In this stu...
Experimental investigation of oil accumulation in second land of internal combustion engines İÇÖZ, TUNÇ; Dursunkaya, Zafer (ASME International, 2005-01-01) Blowback of engine oil suspended in combustion gases, when the gas flows from the piston second land back into the combustion chamber is believed to contribute to oil consumption and hydrocarbon emissions in internal combustion engines. Oil accumulation in the region between top and second compression rings is a factor that influences this phenomenon. The effects of individual parameters, such as oil film thickness and viscosity, however have still not been understood. The present study was aimed at constru...
Development of anodes for direct oxidation of methane fuel in solid oxide fuel cells Akdeniz, Yelda; Timurkutluk, Bora; Timurkutluk, Cigdem (2016-06-22) In addition to pure hydrogen, solid oxide fuel cells (SOFCs) can utilize hydrocarbons as a fuel. However, conventional Ni-based anodes exhibit an excellent catalytic activity towards the hydrocarbon cracking reaction and thus the carbon deposition occurs in the anode. The deposited carbons quickly deactivate the anode irreversibly by covering the active surface of the anode catalyst. As a result, a significant degradation in the cell performance can be seen. In this study, the anode structure is modified by...
Etherification rates of 2-methyl-2-butene and 2-methyl-1-butene with ethanol for environmentally clean gasoline production Oktar, N; Murtezaoglu, K; Dogu, G; Gonderten, I; Doğu, Timur (Wiley, 1999-02-01) Etherification of C-5 reactive olefins available in light fluidized catalytic cracking (FCC) gasoline is an attractive way to decrease the olefins and to increase the octane number. The reactivities of 2-methyl-1-butene (2M1B) and 2-methyl-2-butene (2M2B) in the etherification reaction with ethanol catalysed by a strongly acidic macroreticular resin catalyst were investigated in a temperature range of 333-360 K using a liquid phase differential flow reactor. In the presence of excess alcohol, the apparent r...

Citation Formats

G. Külah, “DEVELOPMENT OF THREE WAY CATALYTIC CONVERTER FOR AUTOMOTIVE EXHAUST GAS,” 2017. Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/61249.