Abstract
The catalytic hydrodeoxygenation (HDO) reaction is anupgrading processof the bio-oilthat has been extensively studied. In this process, hydrogen is used to reduce the high oxygen content of the bio-oil, which mayincrease its stability. Several metals have been studied as active phase for this process, such as, nickel, cobalt, palladium, iron, platinum, molybdenum among others. The support…