STEAM-CARBON CELL FOR HYDROGEN PRODUCTION

摘要

This invention relates to high purity hydrogen production in a steam-carbon cell, which may be operated either in fuel cell mode thus generating electricity at the same time, or in electrolysis mode where the hydrogen production rate is augmented by an externally applied voltage. Introduction of a solid carbonaceous fuel at the anode eliminates the uphill barrier of the open circuit voltage for the reduction Of H2O to hydrogen. This novel concept nearly doubles the conversion efficiency of conventional electrolysis and offers near-zero emissions. The improved efficiency would mean that nearly half the greenhouse gases and other pollutants are produced. The product stream from the anode compartment primarily consists of CO2 and, hence, it is easier and cheaper to capture and mineralize the CO2.