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SUMMARY:Optimal design of catalytic reactors and structured catalysts - Pr
 ofessor Prof Hanssjörg Freund\, CRT Friedrich-Alexander-Universität Erla
 ngen-Nürnberg\, Germany
DTSTART:20181128T140000Z
DTEND:20181128T150000Z
UID:TALK110905@talks.cam.ac.uk
CONTACT:Ian Wilson
DESCRIPTION:Our research aims at the development of energy- and resource e
 fficient chemical processes with a special focus on model-based design of 
 optimal catalytic reactors. For this\, a novel Multi-Level-Reactor-Design 
 (MLRD) methodology has been developed [1\,2] and continuously extended [3-
 6]. The key idea is to track a fluid element on an abstract level on its w
 ay through the – not yet specified – reactor and to optimize the state
 s (e.g. composition and temperature) via material and energy fluxes along 
 its way. The aim is to meet the optimal reaction conditions at every point
  along the reaction coordinate\, which we define as the optimal process ro
 ute. On the basis of the computed optimal flux profiles novel reactor conc
 epts tailored to the needs of the reaction system can be derived and analy
 zed. Finally\, the most appropriate technical reactor for the approximatio
 n and realization of the optimal process route is specified and designed w
 ith the help of detailed simulations.\n\nIn the realization of the identif
 ied optimal process route\, specific requirements regarding heat and mass 
 transport characteristics demand for suitable catalyst support materials a
 nd structures. In this regard\, additive manufacturing techniques allow fo
 r the fabrication of periodic open cellular structures (POCS) with well-de
 fined geometrical properties. POCS are promising novel catalyst supports a
 s they can eliminate the drawbacks of conventional randomly packed fixed-b
 ed reactors\, i.e.\, high pressure drop and hotspots. In fact\, POCS combi
 ne the advantages of randomly packed beds (radial mixing\, tortuosity of t
 he flow) and honeycombs (high geometric specific surface area\, low pressu
 re drop) owing to their high porosities and their characteristic 3D cellul
 ar architecture. Based on extensive experimental investigations as well as
  modeling and simulation correlations for specific surface area\, pressure
  drop and heat transport for POCS were established [7-11] allowing for the
  design and optimization of tailor-made POCS as a new class of superior ca
 talyst supports.\n\nFurther reading:\n[1] H.F.\, K. Sundmacher\, Chem. Eng
 . Process. 47(12) (2008) 2051-2060.\n[2] A. Peschel\, H.F.\, K. Sundmacher
 \, Ind. Eng. Chem. Res. 49(21) (2010) 10535-10548.\n[3] M. Xie\, H.F.\, Ch
 em. Eng. Sci. 175 (2018) 405-415.\n[4] M. Xie\, H.F.\, Chem. Eng. Process.
  123 (2018) 280-290.\n[5] M. Xie\, H.F.\, Chem. Eng. Process. 124 (2018) 1
 74-185.\n[6] J. Maußner\, H.F.\, Chem. Eng. Sci. 183 (2018) 329-345.\n[7]
  E. Bianchi\, G. Groppi\, W. Schwieger\, E. Tronconi\, H.F.\, Chem. Eng. J
 . 264 (2015) 268-279.\n[8] A. Inayat\, M. Klumpp\, M. Lämmermann\, H.F.\,
  W. Schwieger\, Chem. Eng. J. 287 (2016) 704-719.\n[9] M. Lämmermann\, W.
  Schwieger\, H.F.\, Catal. Today 273 (2016) 161-171.\n[10] C. Busse\, H.F.
 \, W. Schwieger\, Chem. Eng. Process. 124 (2018) 199-214.\n[11] M. Lämmer
 mann\, G. Horak\, W. Schwieger\, H.F.\, Chem. Eng. Process. 126 (2018) 178
 -189.\n
LOCATION:Department of Chemical Engineering and Biotechnology\, West Cambr
 idge Site\, LT2
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