Loading...

Modeling, Simulation and Production of Nanoparticles PAM by Inverse Emulsion Polymerization Method

Abdi, Ardeshir | 2015

841 Viewed
  1. Type of Document: Ph.D. Dissertation
  2. Language: Farsi
  3. Document No: 49252 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Ramazani Saadat abadi, Ahmad; Shahrokhi, Mohammad; Abedini, Hossein
  7. Abstract:
  8. In this project, inverse emulsion polymerization (IEP) modeling of poly acrylamid (PAM) using population balance equations (PBEs) has been performed. For this porpuse zero-one and pseudo- bulk models and hybrid model including the zero-one and pseudo- bulk are applied based on the process conditions. The effects of surfactant steric barrier and surfactant reaction with radicals including monomeric radicals on the radical entry rate into the particle have been taken into account for these models. In the modeling, coagulation phenomenon was included by considering the effects of non-DLVO forces such as hydration and steric forces in addition to the DLVO forces. Simulation results for zero- one, pseudo- bulk and the proposed hybrid models are compared with experimental data. The results indicate that the product properties such as conversion, PSD and the average molecular weight (AMW) obtained by the hybrid model has a better agreement with experimental data for larger particle size (more than 200 nm). In additional, simulation results also show that using the time varying cross-over size in the hybrid model has a better performance compare to the results obtain by the fixed cross-over size method. Moreover, the zero- one model has a good performance for small particle size
  9. Keywords:
  10. Polyacrylamid ; Modeling ; Coagulation ; Particles Size ; Population Balance ; Simulation ; Inverse Emulsion Polymerization ; Steric Barrier

 Digital Object List

 Bookmark

No TOC