(70dw) A Mathematical Model for the Vacuum Extraction of Hydrocarbons from Soil | AIChE

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(70dw) A Mathematical Model for the Vacuum Extraction of Hydrocarbons from Soil

Authors 

Naimpally, A. V. - Presenter, California State University, Long Beach
Sajadi, H. - Presenter, California State University, Long Beach
Jorgensen, B. - Presenter, California State University, Long Beach
Chiu, E. - Presenter, California State University, Long Beach
Dumalski, M. - Presenter, California State University, Long Beach
Garcia, D. - Presenter, California State University, Long Beach


A comprehensive mathematical model has been developed based on:

? data collected by Sajadi (MS thesis, CSULB) as well as data from the literature ? parts of mathematical models developed and published in the literature; and the ?internal pores? mathematical model developed by Jorgensen (MS mini-thesis, CSULB).

The composite model can be used to compute the time required to remove the hydrocarbons would be the sum of the times required for the removal for:

1. Hydrocarbons caught up between the particles. The computation for this part of the removal process is known to be dependent upon: volumetric flow rate of air; the temperature of the system and the properties of the bed (average particle size; porosity) 2. The hydrocarbons caught up within the pores of the particles which are open to the outside: Jorgensen's simple model assuming cylindrical pores and with diffusion as

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