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Metal contaminants, fluid cracking catalyst

DFCr systems appear to have the necessary metals tolerance to process residual oils and the abundant, cheaper, but heavily vanadium-contaminated, Venezuelan and Mexican crudes (1-4). Therefore, the dual function fluid cracking catalyst (DFCC) concept could lead to the generation of important catalysts for U.S. refineries should Middle East politics cause another sudden escalation in crude oil prices and availability. The concept is... [Pg.180]

Occelli, M. L. and Stencel, J. M., "Surface-metals Interactions in Fluid Cracking Catalysts During the Upgrading of Nickel Contaminated Gas Oils," 9th Int. Congr. Catalysis, Calgary, Canada (1988), accepted. [Pg.181]

CHARACTERIZATION OF METAL CONTAMINANTS ON FLUID CRACKING CATALYSTS (FCC)... [Pg.586]

Metal contaminants when deposited onto fluid cracking catalysis (FCC) have a serious detrimental effect on the catalysts physicochemical properties (1-21). Vanadium (at levels < 2,000 ppm) generally yield less hydrogen and coke than nickel contaminants in FCC s and its deleterious effects depend on its concentration and... [Pg.188]

Contaminant-Metal Deactivation and Metal-Dehydrogenation Effects During Cyclic Propylene Steaming of Fluid Catalytic Cracking Catalysts... [Pg.171]

The fluid catalytic cracking unit (FCCU) is used for vacuum distillates and residues into olefinic gases. The great demand in processing heavy feedstocks and the high amounts of metals in Brazilian oils, forced to develop novel catalysts that are more resistant to metal contamination. [Pg.915]

Another approach used to reduce the harmful effects of heavy metals in petroleum residues is metal passivation. In this process an oil-soluble treating agent containing antimony is used that deposits on the catalyst surface in competition with contaminant metals, thus reducing the catalytic activity of these metals in promoting coke and gas formation. Metal passivation is especially important in fluid catalytic cracking (FCC) processes. Additives that improve FCC processes were found to increase catalyst life and improve the yield and quality of products. ... [Pg.47]

See other pages where Metal contaminants, fluid cracking catalyst is mentioned: [Pg.47]    [Pg.24]    [Pg.162]    [Pg.162]    [Pg.195]    [Pg.229]    [Pg.229]    [Pg.361]    [Pg.12]    [Pg.586]    [Pg.586]    [Pg.586]    [Pg.586]    [Pg.5]    [Pg.286]    [Pg.105]    [Pg.455]    [Pg.669]    [Pg.6]    [Pg.99]    [Pg.146]    [Pg.6]    [Pg.1]    [Pg.407]   


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Catalysts contamination

Crack metal

Cracking catalyst

Cracking fluid

Fluid Metals

Metal contamination

Metallic contamination

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