Catalytic feedstocks and products
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How to improve the propylene yield from the perspective of raw materials? How to improve gasoline yield and gasoline octane number?
Paraffin-based feedstocks are prone to cracking, resulting in lower yields of gasoline and coke, but higher yields of gas； Naphthenic feedstocks are the easiest to crack, yielding high gasoline production with a high octane rating, while gas production is relatively low ； Aromatic feedstocks are difficult to crack, resulting in low gasoline yield and excessive coking. In heavy oil catalysis, the high content of polycyclic aromatics, resins, and asphaltenes in the feedstock increases the difficulty of cracking, thereby raising the coking rate.