The influences of process condition for the expansion bed process for passivation of presifided hydrogenation catalysts on their sulfiding degree and hydrogenation ( hyd ) activity were investigated 摘要研究了预硫化催化剂膨胀床钝化工艺条件对催化剂加氢( hyd )活性和硫化度的影响。
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。
In recent two years , we have successfully made nearly 10 kinds of catalysts which can be used as substitute for imported ones , such as octenal hydrogenation catalyst , ethanol hydration catalyst , and so forth 是我公司的传统产品，近两年来做为催化剂载体成功地制作了辛烯醛加氢触媒催化剂，乙醇水合催化剂等近10种替代进口催化剂。
According to the features of naphthenic base oil ( i . e . , high nitrogen and low sulfur content ) and based upon theoretical analysis of the h2s concentration needed for phase equilibrium of nickel sulfide and tungsten sulfide in hydrogen , the most economic quantity of sulfiding agent injected into the reactor for supplement of sulfur in lube oil hydrogenation catalysts was obtained 摘要针对环烷基油高氮、低硫的特点，通过对硫化钨和硫化镍在氢气中相平衡态所需硫化氢浓度的理论分析，对反应器入口所需补硫量作了详细的阐述，得出了最经济的补充注硫量。
