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公开(公告)号：AT1951T
公开(公告)日：1982-12-15
申请号：AT79101979
申请日：1979-06-15
Applicant: PHILLIPS PETROLEUM COMPANY
Inventor： BRENT, JOSEPH BERTUS , DWIGHT, LAMAR MCKAY
Abstract: Metals such as nickel, vanadium and iron contaminating a cracking catalyst are passivated by contacting tha contaminated catalyst with a passivating agent dissolved in a secondary feedstock stream having a temperature sufficiently low to avoid or minimize decomposition of the passivating agent until the contacting of said cracking catalyst with said passivating agent.
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