关键词: PIMS, 模型修正, 体积物性, 质量物性, 递归方程, 调合模块, 比体积

Abstract:

Aspen PIMS is a powerful tool software for process industry economic planning. It can provide decision-making basis for the production and operation activities of enterprises, and is widely used in production planning arrangement, crude oil optimization procurement, process optimization, benefit calculation, inventory management, bottleneck problem analysis, and other aspects. According to the classification of material quantity types, the main PIMS model for domestic refineries is the weight basis model. The article discusses the deviation problem of conventional volume property recursion in weight based models, and proposes a method of using the quotient of the original volume property value and density as the substitute value for volume property to handle volume property. This method can eliminate the deviation of conventional volume property recursion.

Key words: PIMS, model correction, volume property, mass property, recursive equation, harmonic module, specific volume