Fig. 3. Exploration of the reactivity of chemisorbed H2 over Ru/SiO2 and Na-Ru/SiO2.
a Relative intensity of linear-adsorbed CO remained during stepwise hydrogenation at 533 K determined by in situ DRIFTS. The ordinates are the evolution of integrated peak area of COad species under H2 flow divided by that before H2 addition at 533 K. b Transient response curves obtained during pulses of 370 μL pure C2H4 into a flow of diluted H2 (10% H2, 90% Ar, 20 mL·min−1) at 533 K. R denotes the integrated peak area ratio of C2H4/C2H6 detected by mass spectrometer. c Comparison of production rate of C2H6 before and after the addition of ethene in syngas feedstock, and (d) Effect of the ethene co-feeding upon the formation rate of the hydrocarbons products based on a carbon basis at 533 K and 0.5 MPa.