DYNAMIC BEHAVIOR OF INTEGRATED PLANTS

The effect of material recycle and heat integration on the dynamics an d control of chemical processing plants is considered. In analogy to l inear control theory, one may consider how plant interconnections affe ct the fundamental properties of the dynamics, such as the poles and z eros. This implies that recycle of mass and energy, which are feedback mechanisms, affects the poles and thus possibly the plant stability, whereas parallel interconnections in a plant affect the zeros and thus the achievable performance of the plant under feedback control.