Nitrogen compounds inhibited both the two parallel reactions for HDS process: hydrogenation (HYD) and hydrogenolysis (HYG), with inhibition on then former.

• 含氮化合物对含硫化合物加氢(HYD)和氢解(HYG)两条并行反应路径均有抑制作用，但对HYD反应路径的抑制作用更为强烈。