The ZEG-technology is a hybrid technology for high efficient co-production of electric power and hydrogen from hydrocarbon fuels with integrated CO2 capture.
High total efficiency is achieved through thermal integration of high temperature fuel cells (SOFC – Solid Oxide Fuel Cells) and a reactor system for hydrogen production (SER – Sorption Enhanced Reforming).
The fuel cells (SOFC) produce electricity and high temperature waste heat. The waste heat is used to produce hydrogen in a modified reforming reaction where a solid (CaO – calcium oxide) is added, that captures CO2 as an integrated part of the process. The CO2 is delivered pressurized from the plant ready for industrial use or storage. The ZEG-technology enables conversion of hydrocarbons into energy with a very high efficiency, from 70 to more than 80%, depending on the plant size and design.
The technology development began in 2001 as a collaboration between Institute for Energy Technology (IFE), Kjeller and Christian Michelsen Research AS (CMR Prototech), Bergen. The different technology elements have been demonstrated successfully at laboratory scale. Techno-economical feasibility studies have shown very positive results in terms of cost and overall energy efficiency.
The technology is patented.