Effect of concentration of some nickel catalyst poisons in oils on the course of hydrogenation

Abstract and Summary Hydrogenation has been carried out in a“dead‐end” type reactor with various types of nickel catalyst and with automatic recording of hydrogen absorption. Oils with varying concentrations of sulfur and phosporus compounds, fatty acids and their salts, as well as partly oxidized oil have been hydrogenated. The resulting kinetic curves are characteristic for each catalyst type and for each inhibitor. An increase in the poison concentration in the reaction system results in lengthening of the induction period apart from the decrease of catalyst activity.