Solid Oxide Electrolysis enabled CO2 utilization
Solid Oxide Electrolyser can at very high efficiency not only produce hydrogen from steam but are also able to co-electrolyse to CO. The hydrogen can be used for fuel cell electrical vehicles or be added with biogas or synthesis gas from gasifiers. In that way the biofuel potential can doubled or tripled using intermittent renewable energy sources like wind or solar or nuclear power. The feedstock can also be just steam and CO2. A variety of carbon based fuels ranging from methane to methanol, DME or gasoline or diesel can thus be produced in an efficient and carbon neutral manner.
The presentation will discuss the synergies between the solid oxide electrolysis and the downstream catalytic steps. The use of different feedstocks for production of various sustainable transportation fuels will be illustrated with some examples from a study for the Nordic region.