Recycling of Carbon Dioxide to Produce Ethanol

Abstract In the coming years, a range of technological solutions aimed at reducing CO 2 emissions should be developed. The objective of this paper is to study the technical feasibility of CO 2 recycling into ethanol using solid oxide electrolysis cells (SOEC) technology, simulate the whole process using Aspen Plus™ software and make an economic assessment and a carbon footprint. The results of the economic analysis demonstrated that the ethanol production plant can deliver ethanol at a cost of $1.1/kg, assuming an internal rate of return on investment of 8%. Main challenges for this process are improvement of ethanol synthesis reaction catalysts and the SOEC performance.