The effect of sulphur compounds on hydrodenitrogenation of nitrogen compounds on a nickel-tungsten catalyst

Abstract

Hydrodenitrogenation of pyridine on a sulphided NiO-WO3/Al2O3 catalyst has been studied in the presence of ethanethiol, propanethiol, thiophene and hydrogen sulphide and the amount of pentane, 1-methylpiperidine, 1-ethylpiperidine and piperidine has been determined. It was found that in the presence of all the sulphur compounds but hydrogen sulphide, the conversion of pyridine was lower than in their absence. The presence of hydrogen sulphide increased pyridine conversion.