Method for preparing and using a fuel, in particular for vehicles

摘要

The method for supplying storable and transportable energy carriers (108) using carbon dioxide (101) as the carbon supplier, direct current energy that is generated by a renewable energy technique and additional electrical energy, which generates from a power supply plant operated with fossil fuels or an electrical integrated network that actually has less load that creates the additional electrical energy, comprises carrying out an electrolysis by using the direct current energy and the additional electrical energy to generate hydrogen (103) as intermediate product. The method for supplying storable and transportable energy carriers (108) using carbon dioxide (101) as the carbon supplier, direct current energy that is generated by a renewable energy technique and additional electrical energy, which generates from a power supply plant operated with fossil fuels or an electrical integrated network that actually has less load that creates the additional electrical energy, comprises carrying out an electrolysis by using the direct current energy and the additional electrical energy to generate hydrogen (103) as intermediate product, and combining the hydrogen and carbon dioxide to convert to methanol. The removal of carbon dioxide from a combustion process or an oxidation process is carried out by carbon dioxide separator. During the electrolysis, silicon dioxide-containing starting material is reduced to silicon. The hydrogen is provided, in which the silicon is brought with water for reaction. The electrolysis is a water electrolysis, in which hydrogen is directly generated from water. The direct current energy is delivered by sun light using a solar thermal plant (300) and/or a photovoltaic plant (400). The silicon is provided as storable and transportable energy carrier and methanol from the hydrogen and carbon dioxide during the process for methanol production is provided as further storable and transportable energy carrier, where water or water vapor is contacted with the silicon in a further step to generate hydrogen, silicon dioxide and energy quantity in a hydrolysis reaction. An independent claim is included for a plant for supplying storable and transportable energy carriers.