Ind. Eng. Chem. Res. 1993,32, 2516-2524
2616
Influence of Oxygen-, Nitrogen-, and Sulfur-Containing Compounds on the Hydrodeoxygenation of Phenols over Sulfided CoMo/y-A1203 and NiMo/y-A1203 Catalysts Etienne Laurent and Bernard Delmon' Unit6 de Catalyse et Chimie des Matkiaux Diuisbs, Uniuersitb Catholique de Louvain, Place Croir du Sud 2/17, 1348 Louvain-la-Neuue, Belgium
The hydrodeoxygenation (HDO) of phenols is a key reaction of the hydroprocessing of bio-oils, because phenolic molecules represent an important part of these oils and they are among the most difficult to deoxygenate. This reaction is also a very good reaction test for the characterization of the hydrogenation and hydrogenolysis functions of hydrotreating catalysts. In this work, the influence of competitors on the activity and selectivity of 4-methylphenol HDO over conventional CoMo and NiMo hydrotreating catalysts was evaluated in batch reaction tests. The inhibiting strength followed In all cases, the hydrogenolysis path was more the order H20
