Method and device for predicting physical property data for process simulation

The invention discloses a method and a device for predicting physical property data for process simulation. The method for predicting the physical property data comprises the following steps: acquiring the group type and the group quantity of crude oil molecules in a crude oil molecule library; performing physical property estimation on the crude oil molecules according to the group type and the group number of the crude oil molecules, and obtaining a first physical property result; obtaining a plurality of types of physical properties of the isomeride, and correcting the first physical property result to obtain a second physical property result; obtaining feature data of the plurality of first molecules, and constructing a physical property prediction model based on the feature data of the plurality of first molecules; obtaining characteristic data of the crude oil molecules, taking the characteristic data of the crude oil molecules as input data of a physical property prediction model, and obtaining a third