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FCC for producing low emission fuels from high hydrogen and low nitrogen and aromatic feeds with rare earth promoted catalyst

机译:FCC可通过高氢,低氮和芳烃进料与稀土促进的催化剂生产低排放燃料

摘要

A fluid catalytic cracking process for producing relatively low emissions fuels. The feedstock is relatively low in nitrogen and aromatics and high in hydrogen content and the catalyst is a rare-earth promoted amorphous silica-alumina catalyst. The feedstock can be characterized as having less than about 50 wppm nitrogen; greater than about 13 wt. % hydrogen; less than about 7.5 wt. % 2+ ring aromatic cores; and not more than about 15 wt. % aromatic cores overall.
机译:用于生产排放量相对较低的燃料的流化催化裂化工艺。原料的氮和芳族化合物相对较低,氢含量较高,该催化剂是稀土促进的无定形二氧化硅-氧化铝催化剂。所述原料的特征在于具有小于约50wppm的氮;优选地,所述氮的含量小于约50wppm。大于约13重量%。氢小于约7.5重量%。 %2+个环芳烃核;并且不超过约15wt。%。总体上为芳族核。

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