Hydrogenation of CO 2 to hydrocarbons over iron nanoparticles supported on oxygenfunctionalized multi-walled carbon nanotubes was studied in a fixed-bed U-tube reactor at 25 bar with a H 2 :CO 2 ratio of 3. Conversion of CO 2 was approximately 35% yielding C 1-C 5 products at 360 • C with methane and CO as major products. The CO 2 equilibrium conversion for temperatures in the range of 320 • to 420 • C was analysed by using CHEMCAD simulation software. Comparison between experimental and simulated degrees of CO 2 conversion shows that reverse water gas shift equilibrium had been achieved in the investigated temperature range and that less than 47% of CO 2 can be converted to CO at 420 • C.
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