The thermochemical process is an addition to pyrolysis, by means of which aluminium is recycled and separated from impurities. Organic material that cannot be recycled in the process serves as the source of the pyrolysis gas – “waste” that would otherwise simply not be put to productive use.
The resulting pyrolysis gas is catalytically treated. Long-chain hydrocarbons are thereby completely split into short-chain hydrocarbons.
Traditional catalyst technologies are used to split the pyrolysis gas. In addition, we use ceramic oxygen carrier material, which means that we can dispense with an external reaction gas feed – and thus work in a CO2-neutral manner – as well as achieving an increased yield of hydrogen through the coatings of the carrier material.
The gas processed in this way is then reused in two ways:
The H2 is separated by pressure swing adsorption. It can then be used in mobility as a fuel alternative, or in plastics production. By adding CO2, it can be converted into methanol (“methanol-to-olefins” (MTO)), which can be used to produce plastics without fossil fuels.
The “off-gas” produced during the pyrolysis process, on the other hand, is reused as an energy source for industrial processes, e.g. in the aluminium smelter.