Abstract: The quality of the solvent product is connected to the design and the operation of the fractionation process. Thus, it is very important for people who want to do well in actual operation to use software simulating the solvent fractionation process in order to get a reasonable design and operation data in a short time. Solvent fractionation process was simulated using PROII, thermodynamic methods and distribution of heat in middle part were adjusted, the thermodynamic method was based on BK10, fractionating tower was calculated based on I/O, top, first middle, second middle reflux heat were 52%, 38%, 10% respectively. Simulation results fit the target product distillate range, can be used as references for the designing and reforming solvent oil fractionator.

Key words: PROII,    ,  Solvent,    ,  Process simulation,     ,  Thermodynamic equation

摘要： 在实际生产过程中，溶剂油产品质量与分馏系统的设计与操作有着直接的关系，利用流程模拟软件对溶剂油产品分馏进行模拟，快速准确的求解装置的设计参数及操作参数，可作为指导设计和生产的依据。利用PROⅡ流程模拟软件对特定的溶剂油产品的分馏系统进行模拟计算。在计算过程中，对热力学方法选择及中段取热分布进行调整，确定热力学方法采用BK10，分馏塔求解采用I/O算法，分馏塔顶、一中、二中回流取热比例分别为52%,38%,10%，模拟结果与目标产品馏分范围符合度较高，可以作为溶剂油产品分馏装置设计及改造的依据。

关键词: ＰＲＯＩＩ , 溶剂油 , 流程模拟 , 热力学方程