Stanislav Duev
Kazan National Reasearch Technological University, Russia
Title: Investigation Of The Multiplicity Of Steady States In The Recycle System: Reactor- Separation Unit
Biography
Biography: Stanislav Duev
Abstract
An efficient way to solve the problem of minimizing chemical industrial wastes is recycling unreacted feed materials. For this purpose the reactor-separator recycle system can be used (Figure 1) However a feedback causes an appearance of multiplicity of the steady states in the reactor. A problem of the steady states multiplicity in chemical reactor has been examined for a long time by van Herden (Van Heerden,1953) and other. Also there are numerous articles in which the problem of the steady states multiplicity and stability of the reactor with recycle has been analysed (Luss and Amundson, 1967), (Kiss, Bildea, Dimian, Iedema and other). The existence of the finite set of steady states (odd number) in the reactor was indicated in all these works. But an appearance of qualitatively new properties in the reactor taking place in the recycle system: reactor – separating unit is possible. It is shown as an existence of continuum (infinite set) steady states in the reactor ( Boyarinov, and Duev, 1980, Boyarinov, and Duev, 2005, Duev and Boyarinov, 2010). Continuum of the steady states is possible to be only in recycle system for the operational mode with a complete utilization of feed and intermediate reactants.