Review article

This article discusses the use of ammonia reforming to generate hydrogen to be used as an additive to the main type of fuel in the internal combustion engine operating on the Diesel cycle. The feed of the hydrogen additive with the reforming products is implemented through the intake manifold to the engine cylinders. There was carried out a comparative analysis of ammonia with other types of fuel in terms of gross calorific value and hydrogen content. Autothermal reforming of ammonia (NH3 - ATR), combining selective oxidation of ammonia (to nitrogen (N) and water (H2O)) and thermal decomposition of ammonia on a ruthenium catalyst with using air as a source of oxygen is considered. The article provides an assessment of the application of reforming and the effect of the product on the combustion of fuel and exhaust gases. The addition of a fairly small amount of non-carbon reformate, approximately 5 % of the diesel fuel, is quite effective in reducing engine carbon emissions, including CO2, CO and total hydrocarbons (CHx).