Dependence of Model Parameters on Pressure and Temperature

The constant did not show any dependence with temperature. The corresponding values of constants for Equations 11.51 and 11.52 at 6.9 MPa are given in Table 11.3. 

At low pressure, the effect of this variable on model parameters other than is minor as given by the small value of the slope in the range of temperatures studied however, at higher temperature its influence is increased. For the highest temperature, the pressure effect diminishes, which is in agreement with experimental results, that is, at high temperatures the effect of pressure on distillation curve of the product is lower compared with that at lower temperatures. 

Modeling of Processes and Reactors for Upgrading of Heavy Petroleum 

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