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Practical Implications of Bifurcation and Chaos in Chemical and Biological Reaction Engineering
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Said S.E.H. Elnashaie
Published/Copyright:
May 12, 2006
This paper concentrates on the practical implications of bifurcation and chaos on novel approaches for the production of the clean fuels: hydrogen and ethanol, and the simulation of the acetylcholine neurocycle in the brain. One problem from the field of chemical reaction engineering and two from the field of biological reaction engineering, the three problems have one thing in common: the practical implications of bifurcation and chaos. The novel approach for hydrogen production is based on a novel circulating fluidized bed catalytic membrane reformer configuration achieving, simultaneously, both autothermicity and breaking the thermodynamic barriers using different techniques (membranes and/or CO2 sequestration). The static bifurcation characteristics of the autothermic process and their implications on design and operation for maximum hydrogen yield and productivity are addressed. Experimental set-up for this novel process is being developed at University of British Columbia (UBC).The novel approach for the ethanol production does not use a novel configuration, however it uses a classical configuration but with a novel mode of operation. A CSTR fermenter is used exploiting bifurcation and chaos theories to maximize ethanol yield and productivity. The sequence of research work consisted of: developing a reliable and relatively simple model to describe the fermentation process, verification of the model against experimental results, using the model in an extensive bifurcation and chaos analysis investigation to identify the regions of bifurcation and chaos and their characteristics. This is followed by using these results to guide an experimental investigation of bifurcation and chaos and their implications on improving ethanol yield and productivity.This paper also introduces our preliminary efforts to investigate the bifurcation and chaotic behavior of acetylcholine neurocycle in the brain using diffusion-reaction models in order to gain some insight into their possible connection to Alzheimer and Parkinson Diseases (AD/PD).
Published Online: 2006-5-12
©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston
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Keywords for this article
bifurcation;
biological reaction engineering;
chaos;
chemical reaction engineering
Articles in the same Issue
- Review
- Practical Implications of Bifurcation and Chaos in Chemical and Biological Reaction Engineering
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- Optimization of Bacterial Oxidation Process Parameters for Selective Leaching of Nickel by Thiobacillus Ferrooxidans
- Direct Numerical Simulation of Mass Transfer from Spherical Bubbles: the Effect of Interface Contamination at Low Reynolds Numbers
- Plasma-Prepared Ni/Al2O3: Preparation, Characterization and Toluene Hydrogenation
- Flow Induced by Dual-Turbine of Different Diameters in a Gas-Liquid Agitation System: the Agitation and Turbulence Indices
- A Comprehensive Model for Catalytic Membrane Reactor
- A Structured Model for Interleukin-11 Production with Recombinant E.coli and Genetic Algorithm for Model Parameter Estimation
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- Identification of the State of a Magneto-Fluidized Bed by Pressure Fluctuations
- Modeling a Silicon CVD Spouted Bed Pilot Plant Reactor
- Intercooled Double-Bed Reactor for LTWGS Reaction with Catalyst Poisoning by Chlorine: Inlet Temperatures for the Maximization of the Production
- Comprehensive Modeling of Gas Fluidized-Bed Reactors Allowing for Transients, Multiple Flow Regimes and Selective Removal of Species
- Isothermal PFR/PMR Networks
- Influence of Particles and Electrolyte on Gas Hold-Up and Mass Transfer in a Slurry Bubble Column
- Three Phase Catalytic Reactions: Role of Omega Aqueous Phase in Solid-Liquid Phase Transfer Catalyzed Etherification of 2'- Hydroxy Acetophenone
- Treatment of Cork Wastes in a Conical Spouted Bed Reactor
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- Kinetics of Liquid - Phase Hydrogenation of Straight Chain C10 to C13 Di-Olefins Over Ni/Al2O3 Catalyst
- Kinetics of H2S Sorption on Manganese Oxide and Mn-Fe-Cu Mixed Oxide Prepared by the Complexation Technique
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