适用于炼化一体化企业原油分类方法的探讨

A DISCUSSION ON THE CLASSIFICATION OF CRUDE OIL CONVENIENT FOR REFINING-PETROCHEMICAL ENTERPRISES

传统的原油化学特性分类方法是根据原油关键馏分性质将原油划分为石蜡基、中间基和环烷基原油。实际工作中发现这种分类方法对炼油装置下游配套乙烯、重整(芳烃)装置的炼化一体化企业实用性不强,不便于企业按原油类别优化采购、存储和加工过程。研究发现,按原油直馏重石脑油馏分性质将原油划分为裂解料型、重整料型和过渡型原油三类更便于炼化一体化企业的实际应用。

Crude oils are classified into three types conventionally, i. e. paraffinic base, naphthenic base and intermediate base according to the characteristics of their key fractions. However, it is found that this classification is not convenient for refining-petrochemical complex to optimize the purchase, storing, and processing of crude oils based on their types. It is suggested that classification of crude oils according to the properties of their heavy naphtha fractions might be more suitable for refining-petrochemical complex in application,i, e. classifying crude oils into cracking stock, reforming stock and transition three types.