Applied to inhibit effects of heavy metals such as nickel, vanadium, iron to fluid catalytic cracking (FCC) catalysts, maintaining the micro-reactivity of catalyst and improve the yield of naphtha.

Applied to the FCC unit with high vanadium oil as raw material, inhibit the poisoning effect of nickel and vanadium heavy metal to fluid catalytic cracking (FCC) catalysts , maintaining the micro-reactivity of catalyst and improve the yield of light oil.