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Improving the Accuracy of the Delft Model to Predict the Structured Packing's Performance in a Dehydration Pilot Plant
  • Mohammad Jafari Nasr,
  • Hamid Kalatjari,
  • Farzan Farahani
Mohammad Jafari Nasr
Islamic Azad University Science and Research Branch

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Hamid Kalatjari
SAZEH Engineering Consultants
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Farzan Farahani
SAZEH Engineering Consultants
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Abstract

In this study, the Delft model has been modified for the prediction of pressure drop, load point, liquid hold-up, and surface area design in the “wet gas-Tri Ethylene Glycol (TEG)” dehydration pilot plant. These parameters were used to predict the height of a transfer unit (HTU) and height equivalent to a theoretical plate (HETP) for different commercial structured packing materials and compared with existing experimental data. Improved modeling of the effective interfacial area is a key requirement for increasing the reliability and overall accuracy of the models. The mass-transfer model has been reviewed against a variety of structured packings for desorber and absorber pressures ranging from 3.81 to 9.83 barg. In this paper, the Separations Research Program (SRP), Delft and modified Delft models have been validated for different types of corrugated metal type structured packings.