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Some Dynamic Features of Fluidised Bed Reactors for Partial Oxidation of o‐Xylene.
Author(s) -
Abashar M.E.E.
Publication year - 2003
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500110411
Subject(s) - phthalic anhydride , bifurcation , period (music) , type (biology) , continuation , thermodynamics , mathematics , control theory (sociology) , computer science , materials science , chemistry , physics , organic chemistry , artificial intelligence , nonlinear system , quantum mechanics , acoustics , programming language , catalysis , ecology , control (management) , biology
A dynamic analysis of fluidised bed reactors for the partial oxidation of o‐xylene to phthalic anhydride is presented. The theory of bifurcation, continuation and Poincareé techniques play key roles in the analysis. A new type of period‐adding bifurcation of Poincaré return points is observed and is shown to generate a complex dynamic behaviour. The period adding is classified as a second kind of period adding according to the classification of Holden and Fan [15]. It is found that relaxation oscillations develop through distortion of limit cycles, which have fast and slow motion in the different regions of the phase space.