Removal of Nitrogen Oxides from Off-Gases of Diesel Engines: the Problems and the Prospects to Solve Them
V. A. SADYKOV1, T. G. KUZNETSOVA1, R. V. BUNINA1, G. M. ALIKINA1, L. CH. BATUEV1, V. A. SOBYANIN1, V. A. KIRILLOV1, V. P. DORONIN2 , V. A. MATYSHAK3, A. YA. ROZOVSKII4, V. F. TRETJAKOV4, T. N. BURDEYNAYA4, V. V. LUNIN5 AND JU. ROSS6
1Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences,
Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia) E-mail: sadykov@catalysis.nsk.su 2Institute of Hydrocarbons Processing, Siberian Branch of the Russian Academy of Sciences,
Ul. Neftezavodskaya 54, Omsk 644040 (Russia) 3Semenov Institute of Chemical Physics, Russian Academy of Sciences,
Ul. Kosygina 4, Moscow 117977 (Russia) 4Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences,
Leninskiy Pr. 29, Moscow 119991 (Russia) 5Lomonosov Moscow State University,
Leninskiye Gory, Moscow GSP-2, 119992 (Russia) 6University of Limerick, Limerick (Ireland)
Pages: 713-724
Abstract
Possible application of new technologies to remove nitrogen oxides from off-gases of diesel engines has been considered that is based on the use of steady-state and non-steady catalytic processes to reduce nitrogen oxides by diesel fuel or by the products of its selective conversion into synthesis gas or olefines in compact generators. It has been found that the use of synthesis gas, mixed with the main fuel for petrol or diesel engines, makes it possible to drastically abate emissions of hazardous components and to enhance the efficiency of the engines, in particular, when ultralean mixtures are used. A viability has been revealed to apply complex oxidic systems with high mobility of oxygen as catalysts of the oxidation processes for soot particles with nitrogen oxides involved that facilitate the removal of both types of noxious admixtures.
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