New Journal at De Gruyter!
Ed. by de Lasa, Hugo / Xu, Charles
1 Issue per year
Increased IMPACT FACTOR 2011: 0.790
Volume 11 (2013)
Volume 10 (2012)
Volume 9 (2011)
Volume 8 (2010)
Volume 7 (2009)
Volume 6 (2008)
Volume 5 (2007)
Volume 4 (2006)
Volume 3 (2005)
Volume 2 (2004)
Volume 1 (2002)
Most Downloaded Articles
- Micro- and Macromechanics of Hopper Discharge of Ultrafine Cohesive Powder by Tomas, Jürgen and Kache, Guido
- Effect of Chitosan Addition on NiMo/Al2O3 Catalysts for Dibenzothiophene Hydrodesulfurization by Ríos-Caloch, Guillermina/ Santes, Víctor/ Escobar, José/ Valle-Orta, Maiby/ Barrera, María C. and Hernández-Barrera, Melissa
- Fischer Tropsch Synthesis: The Promoter Effects, Operating Conditions, and Reactor Synthesis by Sarkari, Majid/ Fazlollahi, Farhad and Atashi, Hossein
- A Trickle Fixed-Bed Recycle Reactor Model for the Fischer-Tropsch Synthesis by Brunner, Kyle M./ Duncan, Joshua C./ Harrison, Luke D./ Pratt, Kyle E./ Peguin, Robson P. S./ Bartholomew, Calvin H. and Hecker, William C.
- A Comprehensive Review of Just Suspended Speed in Liquid-Solid and Gas-Liquid-Solid Stirred Tank Reactors by Jafari, Rouzbeh/ Chaouki, Jamal and Tanguy, Philippe A.
Development and Validation of a Steady-State Mathematical Model for the Physicochemical Processing of Biopolymers by Reactive Extrusion
1Ecole Centrale Paris, email@example.com
2Ecole Centrale Paris, firstname.lastname@example.org
4Centre de Valorisation des Glucides, email@example.com
Citation Information: International Journal of Chemical Reactor Engineering. Volume 8, Issue 1, Pages –, ISSN (Online) 1542-6580, DOI: 10.2202/1542-6580.2172, March 2010
- Published Online:
In reactive extrusion, the extruder is used as a solvent-free continuous chemical reactor able to process highly viscous materials. The chemical transformation of biopolymers by reactive extrusion appears as a very promising technology. Although punctual applications in this field have already been achieved on a laboratory or pilot scale, the amount of work to carry out is still considerable. A wide range of reactions and raw materials may be explored, and the reactions achieved on a laboratory scale have to be optimized and transposed to an industrial scale. Process modelling and simulation constitute useful tools for process understanding, development, optimization and scale-up. Although reactive extrusion modelling has interested many authors, it still remains a challenge because of the complex geometry and the strong coupling between operating parameters, flow conditions, material rheological behavior and reaction kinetics. A steady-state mathematical model for a biopolymer oxidation process by reactive extrusion is here proposed. The model is based on a hybrid approach combining chemical engineering methods and simplified continuum mechanics laws. The combination of these two approaches enables to simplify the calculations related to chemical reactions while ensuring a predictive character. The flexible structure of the model enabled its implementation within a global process simulator. A method to minimize the amount of experimental data required for model parameter adjustment is also presented. The model was validated by experiments conducted on a semi-pilot corotating twin-screw extruder. Even if it may be refined, the model proposed already constitutes a useful tool for later research work dealing with the development, modelling and simulation of chemical reactions in corotating twin-screw extruders.