Improved Energy Efficiency of Power‐to‐X Processes Using Heat Pumps Towards Mobility Sector Defossilization

Combining Power-to-X (PtX) processes with high temperature heat pumps (HTHP) can significantly increase their energy efficiency. Evaluating the example of oxymethylene ethers (OME) production from H2 via H2O electrolysis and captured CO2 air shows that by upgrading waste streams using HTHP, a process overall efficiency higher than 61 % be achieved compared to 30 in conventional integrated processes. Thereby, stream already covers low demand for capture direct capture, not only OME but also various PtX products. Importantly, significant lever enhancement is consideration other heat-demanding sectors. High efficiencies electrification industry are key aspects towards sustainable mobility sector.