| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for fractionating naphtha whereby naphtha can be fractionated in an optimum ratio into fractions according to its various applications as raw materials, a method for manufacturing naphtha products whereby economically advantageous allocation of the naphtha products are achieved, and a method and a system for supporting the manufacturing of the naphtha products. SOLUTION: In the method for fractionating naphtha, naphtha contained in crude oil is fractionated and retrieved through an atmospheric distillation method. According to the distillation temperatures at fractionation, naphtha is fractionated into at least three fractions, i. e. light naphtha, heavy naphtha and intermediate naphtha whose distillation temperature ranges from the initial boiling point of the heavy naphtha to the final boiling point of the light naphtha. COPYRIGHT: (C)2006,JPO&NCIPI
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