praca inżynierska, autor: Maciej Mikołajewski
English title: „Organophilic nanofiltration”
The goal of this thesis is to present the state-of-the-art in modeling the transport phenomena in organophilic nanofiltration. The thesis consists of three main parts: (1) Introduction, (2) Theoretical background, (3) Modeling and simulation of nanofiltration and (4) Conclusion. Introduction to the thesis consists of general information about organophilic nanofiltration. Further part of the thesis presents and discusses more specifically nanofiltration membrane technology as a separation process with its characteristical properties. In chapter 2 different transport models describing permeation of organic components through nanofiltration membrane and their applications over recent years are discussed. Afterwards applications of organophilic nanofiltration were shown, its potential in the petrochemical industry, pharmaceutical industry, water treatment and other very important industries. Next subsection presents drawbacks of nanofiltration, of which the important are those concerning membrane itself (e.g. fouling, lifetime and chemical resistance). Chapter 3 uses one of the models discussed in chapter 2, e.g. solution-diffusion with imperfections model, to describe the transport of organic mixture of pentane-decane through dense PDMS/PAN membrane.
A simulation was performed with the use of the ICAS-MoT software for pressures varying from 10 to 40 [bar]. The simulations were based on data contained in the work of Dijktra et al. . Following subsection of the thesis presents simulation results with the change of two process parameters: membrane thickness ( ) and temperature (T). In the last subsection of chapter 3 the results obtained by the author of this thesis were compared to experimental data obtained by Dijktra et al. . The obtained results did not differ significantly from the article data.