A Before Treatment Method for Reduction of Emissions in Diesel Engines

Catalytic exhaust gas fuel reforming for diesel engines?effects of water addition on hydrogen production and fuel conversion efficiency

“…Replacement of part of the main hydrocarbon fuel in engines has been shown to be beneÿcial in terms of brake power, thermal e ciency, and reduction of HC, CO, CO2 and particulate emissions. The high ame speed of hydrogen and thereby increased cylinder peak pressure and temperature tend to increase NOx emissions except for lean mixtures [1][2][3][4][5][6][7]. However, hydrogen can ignite over a wide range of air to fuel ratios and this allows leaner engine operation, thus leading to less NOx.…”

Partially premixed charge compression ignition engine with on-board production by exhaust gas fuel reforming of diesel and biodiesel

“…Hydrogen is one of the best fuels that can be used in internal combustion (IC) engines as pure or as a partial substitute of standard hydrocarbon fuels to improve performance and emissions, as has been reported by many researchers [1][2][3][4][5][6][7][8][9][10]. In the last years the authors have been carrying out hydrogen-related research in diesel engines and the present paper follows from earlier reported results on the application of exhaust gas fuel reforming in compression ignition engines [11,12].…”

Low-Temperature Catalytic Performance of Ni-Cu/Al2O3 Catalysts for Gasoline Reforming to Produce Hydrogen Applied in Spark Ignition Engines

“…These features make hydrogen an excellent fuel to potentially meet the increasingly stringent targets for exhaust emissions from combustion devices, including the reduction of greenhouse gas emissions. Hydrogen can be used in internal combustion engines (ICE) on its own or as a partial substitute for traditional ICE fuels to improve performance and emissions, as has been reported by many researchers [2][3][4][5][6][7][8][9][10][11].…”

“…Its combustion products are clean, consisting of water and a tiny amount of NO x [14]. Hydrogen-rich gaseous fuel was produced by exhaust gas assisted reforming of gasoline or diesel fuel with steam (on-board production) [8,15]. This technique can potentially provide a feasible and practical engine system.…”