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A comparative study of a fluidised bed reactor and a gas lift loop reactor for the IBE process: Part I. Reactor design and scale down approach
Author(s) -
Schoutens Gerda H.,
Guit Ruud P.,
Zieleman Gerard J.,
Luyben Karel Ch. A. M.,
Kossen Nico W. F.
Publication year - 1986
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280360707
Subject(s) - gas lift , continuous stirred tank reactor , loop (graph theory) , reactor design , lift (data mining) , nuclear engineering , scale up , mixing (physics) , continuous reactor , chemistry , materials science , chemical engineering , thermodynamics , physics , engineering , computer science , mathematics , catalysis , organic chemistry , classical mechanics , combinatorics , quantum mechanics , data mining
For the continuous production of isopropanol‐butanol mixtures by immobilised Clostridium spp. (the IBE process) two reactor types were studied: a fluidised bed reactor with liquid recycling (FBR) and an external loop gas lift reactor (GLR). A large scale design (50–65 m 3 ) was made for both reactors. A regime analysis, by evaluating the time constants for e.g. mixing and conversion, identified the ruling regime. Via the scale down approach two representative model reactors were developed: a 10 dm 3 FBR reactor (H/D=25, D=0.08 m) and a 15 dm 3 external loop GLR (H/D = 12.5, D r =D d =0.08 m). For both reactors the hydrodynamical behaviour and the total reactor performance were studied and are described in parts II and III of this study.