Abstract: The differential distribution of reforming raw materials has multiple impacts on the reforming reaction.This paper thoroughly analyzes the compositional characteristics and current-situation differences of alkanes, naphthenes,aromatics,etc.in the CCR feedstock, as well as the changes in the conversion rates of various hydrocarbons in the reforming reaction and their impacts on the main products. Based on this, optimization suggestions such as cutting heavy naphtha, reducing the contents of C₆ and C₁₁+, and controlling the product quality of light naphtha and heavy naphtha are put forward. Through simulation calculation, by optimizing the reforming mixed feedstock, reducing the ineffective components in the feedstock, and eliminating the operation bottleneck of the unit, it provides data support and engineering reference for the feedstock optimization of similar units, helping refining and chemical enterprises to improve quality and efficiency and achieve low-carbon transformation.

Key words: light naphtha, heavy naphtha, CCR, conversion rate, n-hexane, isohexane, methylcyclopentane