Hydrogen has been widely applied to remove impurities on the solid surface in archaeological, semi-conductor and computer electronic industries. The cleaning efficiency of Hydrogen cleaning is very high. Taking the cleaning of iron-nickel alloy chips for example, Hydrogen can remove about 60 nm of carbon and oxidized substance off the surface in 20 seconds without damaging the metal surface.
When pure Hydrogen (H2) is introduced into engines, both petrol or diesel, the temperature within the engine causes the Hydrogen molecules (H2) to break down into Hydrogen protons (2H+). The activated H+ will react with Carbon, Sludge and Oxide substance in the engine. Carbon and sludge deposits will be chemically transformed into Hydrocarbons (HC) in a gaseous state and gets discharged from the exhaust system!