A new type of fuel could be an alternative to batteries as energy sources and helping to boost the hydrogen breakthrough.
This goal is pursued by the University of Erlangen-Nuremberg, the Excellence Cluster of Engineering of Advanced Materials at the University of Erlangen-Nuremberg and the Energy Campus Nuremberg, by researching a mobility option that provides for the storage of energy in liquids, making it compatible with today's petrol / diesel supply. These so-called energy-carrying substances (ETS) will be recycled and not consumed. This distinguishes them from the current system of fuel.
In the application in the vehicle, hydrogen is chemically removed from this energy-rich liquid, for use as fuel for by a fuel-cell electric drive or an internal combustion engine. When refueling the ‘discharged’ (i.e. energy reduced) carbazole is simply pumped out and replaced by a fresh (high energy) amount. For car owners, the only change is the shape of the refueling nozzle. The ‘used’ carbazole is collected at gas stations and later regenerated -- preferably using renewable energy sources.
The new technology competes with the technology already available to the 700-bar high-pressure storage of pure hydrogen in vehicles. The new technology has a marked advantage in allowing existing service station infrastructures to be used. Also, no pressure is required; the substance N-ethylcarbazole is similar to diesel in many ways. One liter of N-ethylcarbazole allows almost twice as much hydrogen (
The technology development at the
Funding for a preliminary evaluation of this technology was applied for at the Federal Ministry of Transport, Building and Urban Development.
Source: Prof. Dr.-Ing. Wolfgang Arlt