Sammanfattning
Deoxygenation of dilute and concentrated stearic acid over 2% Pd/C beads was performed in a continuous reactor at 300 °C and 20 bar pressure of Ar or 5%H2/Ar. Stable operation was obtained in 5%H 2 atmosphere, with 95% conversion of 10 mol % dilute stearic acid in dodecane and 12% conversion of pure stearic acid. Deactivation took place in H 2-deficient gas atmosphere, probably as a result of the formation of unsaturated products and coking in the pore system. Transient experiments with step changes were performed: 1 h was required for the step change to be visible in liquid sampling,whereas steady states were achieved after a total of 2.5-3 h. Postreaction analysis of the spent catalyst revealed that a deactivation profile was formed downward over the catalyst bed.
Originalspråk | Engelska |
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Sidor (från-till) | 11049-11058 |
Antal sidor | 10 |
Tidskrift | Industrial and Engineering Chemistry Research |
Volym | 50 |
Nummer | 19 |
DOI | |
Status | Publicerad - 5 okt. 2011 |
MoE-publikationstyp | A1 Tidskriftsartikel-refererad |