Chemical Engineering Journal 336 (2018) 741–747 Contents lists available at ScienceDirect Chemical Engineering Journal journal homepage: www.elsevier.com/locate/cej Simulations on time scales and conversion of fast competing reactions in rapid mixing a,b, a Zhengxi Zhu , Xiaoxiao Wang School of Chemistry and Chemical Engineering, Institute of Innovative Materials and Energy, Yangzhou University, Yangzhou, Jiangsu 225002, China Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: This work studies the fast coupling reaction of polymers with a water competition under conﬁned impinging jet Competing reactions (CIJ) mixing. The coupling reaction between polystyrene acyl chloride (PS-COCl) and polyethylene glycol amine Fast coupling reaction (PEG-NH ) is used either with or without a water competition. The reactions are implemented either in a mo- Diblock copolymer lecular homogeneous and perfect mixing or in a CIJ mixing reactor. The simulations reveal that although the Reaction kinetics process with Re = 1770 is mixing limited (τ (∼1.8 ms) < τ (∼7.4 ms) < τ (∼8.5 ms)), the desired j rxn1 rxn2 mix Reactive jet mixing coupling conversion (16%) and selectivity (0.17) is approaching to 18% and 0.19 respectively, which were their CIJ
Chemical Engineering Journal – Elsevier
Published: Mar 15, 2018
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