A FUNDAMENTAL ANALYSIS OF CONTINUOUS FLOW BIOREACTOR AND MEMBRANE REACTOR MODELS WITH TESSIER KINETICS

• Published in: Chemical engineering communications Vol. 199; no. 3; pp. 417 - 433
• Main Authors: Nelson, M. I., Balakrishnan, E., Sidhu, H. S.
• Format: Journal Article
• Language: English
• Published: Philadelphia Taylor & Francis Group 01.03.2012; Taylor & Francis Ltd
• Subjects: Biomass; Bioreactor; Bioreactors; Chemical engineering; Continuous flow; Detaching; Kinetics; Membrane reactor; Membrane reactors; Membranes; Modeling; Reaction kinetics; Reactors; Steady state; Stirred tank
• ISSN: 0098-6445; 1563-5201
• DOI: 10.1080/00986445.2010.525155

In this research we analyze the steady-state operation of a continuous flow bioreactor, with or without recycle, and an idealized or nonidealized continuous flow membrane reactor. The model extends to include a fixed bed reactor where a fraction of the biomass is detached by the flow. The reaction is assumed to be governed by Tessier growth kinetics. We show that a flow reactor with idealized recycle has the same performance as an idealized membrane reactor and that the performance of a nonidealized membrane reactor is identical to that of an appropriately defined continuous flow bioreactor with nonidealized recycle. The performance of all three reactor types can therefore be obtained by analyzing a flow reactor with recycle. The steady states of the recycle model are found and their stability determined as a function of the residence time. The performance of the reactor at large residence times is obtained.