化工进展

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加氢裂化全流程模拟的集总转换

杨小健,杨小龙,李荣雨   

  1. 南京工业大学电子与信息工程学院,江苏 南京 210009
  • 出版日期:2011-09-05 发布日期:2011-09-05

Lumped parameter conversion for flowsheeting of hydrocracking

YANG Xiaojian,YANG Xiaolong,LI Rongyu   

  1. Collge of Electronics and Information Engineering,Nanjing University of Technology,Nanjing 210009,Jiangsu,China
  • Online:2011-09-05 Published:2011-09-05

摘要:

加氢裂化流程的复杂性使得对其进行的模拟很难达到指定的精度。反应部分与分馏部分处于同一模型中,但是分别适合于两种不同的集总,使用同一集总则会降低模拟精度。本文提出了集总转换的思想,对反应器出料的蒸馏曲线进行插值、切割和归一化运算,结合出料的质量和体积信息计算出分馏集总下的虚拟组分质量和体积,最终计算出适合分馏塔模型的分馏集总的物性参数表。这一方法可以显著提高模拟的精度。

Abstract:

The flowsheeting for hydrocracking is made up of reactor and fractionating tower. Since lumped parameters of the two parts are not the sameusing a single group of lumped parameters may reduce the precision of the model. In this paperthe method for lumped parameter conversion is introduced. Based on the quality and volume of the output of the reactorthe quality and volume of virtual components are worked out after interpolationcleavage and normalization for the distillation curve of the output of the reactor. At lastthe lumped parameters for the fractionating tower can be figured out with the quality and volume of virtual components. The method can evidently increase the precision of the model.

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