Eindhoven, Netherlands – A researcher at the Technische Universiteit (University of Technology) Eindhoven in the Netherlands has developed a new type of diesel which emits far less soot than conventional fuel and uses industrial waste as its raw material.
Researcher Michael Boot also found that the raw material blended into the diesel may be used to make nylon, and he has developed a diesel injector that uses less fuel.
The raw material, cyclohexanone, is mixed into ordinary diesel to create a fuel named Cyclox. The fuel ignites later than usual, which allows the oxygen and fuel to better mix and to produce fewer soot particles. Boot said that he has measured zero emissions of soot at an air/fuel ratio of 50/50, while in an idling passenger car, a ratio of 10/90 cyclohexanone to ordinary diesel produced a 50 per cent reduction in soot emission.
The university has applied for an international patent on Cyclox.
Boot’s research found that cyclohexanone can be made from lignin, a waste product from the paper industry, among others. In addition to producing Cyclox, cyclohexanone can also be used as the main raw ingredient in nylon.
The new diesel injector tip, called PFAMEN (Porous Fuel Air Mixing Enhancing Nozzle) uses a filter as the tip, instead of the limited number of holes found in a conventional injector tip. The diesel is atomized much more and its combustion is better and cleaner; as well, the fuel circuit, the most expensive part of the diesel engine, can be made much more cheaply.