The results showed that passivation of the presulfided hydrogenation catalysts was necessary; temperature, concentration of O2, reaction time and expansion rate are important influential factors on the passivation effects.

• 结果表明，预硫化后催化剂需要经过钝化处理；反应温度、O2浓度、反应时间及膨胀率是影响钝化效果的主要因素。