| *Appropriate distillation range and density, less tendency for coking with cracker, it is favorable for long term run.
*High content for alkane and n-alkane, it is favorable for cracker to generate more target products such as ethylene and propylene, etc.
*Low content for olefin and aromatics, this is favorable for deep cracking of feedstock.
*Low impurities such as sulfur, arsenic, lead and chloride, resulting in less harmful composition in cracking products, and is favorable for product refining.
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