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CO hydrogenation on SiO2-supported Fe and Ru catalysts studied by in situ IR spectroscopy

✍ Scribed by D. Schanke; G.R. Fredriksen; E.A. Blekkan; A. Holmen

Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
553 KB
Volume
9
Category
Article
ISSN
0920-5861

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✦ Synopsis

CO hydrogenation on l%Ru/SiO in-situ infrared spectroscopy a e and 5%Fe/Si02 has been studied by 6 bar total pressure, s/CO = 2 and reaction temperatures ranging from 498 K to 573 K. On Ru/Si02, a band at 2034 cm-' was assigned to linearly adsorbed CO. The intensity of the band corresponding to linearly adsorbed CO was greatly reduced at 573 K, compared to reaction temperatures in the 498-548 K range. This is probably a result of dissociative CO adsorption or loss of Ru surface area by carbon deposition at high temperature. No infrared bands corresponding to molecularly adsorbed CO could-be detect_ep on Fe/SiO, during reaction. Infrared bands in the 3000-2800 cm and 1600-1300 cm-range were ascribed to reaction products adsorbed on the catalyst.

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