TEMPERATURE PROGRAMMED REDUCTION STUDY OF Cu-BASED WATER GAS SHIFT CATALYSTS

摘要

Water-gas shift is an old and established technology that may find new applications in fuel cell and coal processing systems. Water gas shift is a reversible, exothermic reaction that is thermodynamically unfavorable at elevated temperatures. In order to achieve high conversions, the reaction is typically run in multiple adiabatic stages, with lower inlet temperatures in the later stages. Additionally excess steam is used to drive the reaction thermodynamically. Carbon monoxide reacts with water to yield carbon dioxide and hydrogen: CO (g) + H2O (g) = CO2 (g) + H2 (g) (1).