The environmental friendly nickel passivator( PPN) consisting of phosphate salts can decrease the yields of hydrogen and coke by 35% and 10% respectively, while increasing the yield of gasoline by 1%.

• 工业试验表明,在催化裂化催化剂上的镍污染量高达1%25时,环境友好型磷酸盐钝镍剂仍能使汽油收率提高1%25,氢气产率和焦炭产率分别下降35%25和10%25以上,显示出良好的钝镍效果。