Performance characterization of a novel Fe-based sorbent for anaerobic gas desulfurization finalized to high temperature fuel cell applications

Moreover, a comparison with commercial activated carbons typically used for the same purpose (Cu-Cr or KOH-KI treated) was performed, identifying the optimal operative parameters to obtain higher H2S sorption capacity for SCX sorbent. Specifically, SCX showed its potential in terms of H2S removal for GHSV lower than 330 h−1, values of particular interest for many practical applications. In this case, an improved removal capability is obtained with respect to the ones exhibited by the considered carbons. Moreover, quantitative evaluations provided for unitary installed power (1 kWe fuel cell-based systems) highlighted the possibility to have more compact (volume reduction of about 50%) and cheaper (cost reduction up to six times) filters.