Development of a Complex Catalytic Conversion System for Internal Combustion Engines Fueled with Natural Gas

Vladislav Anatolievich Luksho, Andrey Victorovich Kozlov, Vladimir Ivanovich Panchishny and Alexey Stanislavovich Terenchenko

Modern Applied Science, 2015, vol. 9, issue 8, 237

Abstract: The paper related to developing of a new gas engines with high energy efficiency and meeting future emission standards. It is necessary to develop complex exhaust gas aftertreatment systems to treat the toxic components efficiently when the engine runs on stoichiometric and lean mixtures. It is proposed to use new combination of three-way catalyst for working on stoichiometric mixtures and a selective catalytic reduction system for NOx aftertreatment on lean mixtures. Experimental studies have shown that efficient (over 90%) conversion of gas engine exhaust components takes place in the range of air excess ratio from 0.99 to 1.01. Theoretical studies have shown that the highest efficiency of nitrogen oxides reduction is achieved in the temperature range of 400...500°C and reaches over 97%.

Date: 2015
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