BEGIN:VCALENDAR VERSION:2.0 PRODID:-//Talks.cam//talks.cam.ac.uk// X-WR-CALNAME:Talks.cam BEGIN:VEVENT SUMMARY:Reflections on Structured Catalysts and Reactors - Freek Kapteijn \, Catalysis Engineering-ChemE\, Delft University of Technology DTSTART:20210621T100000Z DTEND:20210621T110000Z UID:TALK161044@talks.cam.ac.uk CONTACT:Communications\, CEB DESCRIPTION:Please join this talk in "Microsoft Teams":https://teams.micro soft.com/l/meetup-join/19:b7df45856d814c06bdec7db948bbaa39@thread.tacv2/16 23258821761?context=%7B%22Tid%22:%2249a50445-bdfa-4b79-ade3-547b4f3986e9%2 2\,%22Oid%22:%22026c67ed-9f3a-40b8-9234-48eb6576dfe8%22%7D\n\n\nAfter thei r successful introduction in emission control in the form of monoliths\, s tructured\ncatalysts and reactors have been explored the last decades for application in catalytic multiphase\nprocesses [1\,2]. They facilitate fol lowing the optimal reactor selection approach of Krishna and\nSie ('to mix or not to mix') [3]\, where conflicting design requirements can still be realized in a\nstructured reactor.\nAn interesting approach is to analyse the relative resistances of the various steps in de overall\nreaction acti ng in a multiphase catalytic reactor. Use of structured catalysts/reactor internals can\neliminate or alleviate major hurdles\, changing their inter play in the process [4\,5]. The question\nthen arises what resistance dist ribution is desired and what are essential guiding rules of thumb\nto dete rmine the focus for the optimization of the structured catalyst-reactor in ternal.\nThe quest for process intensification has triggered new direction s of improving catalysts for\nclassical reactions. Using metal-organic fra meworks as a catalyst precursor has been successful\nin the preparation of extremely active low- and high-temperature Fischer-Tropsch catalysts [6]. \nThis changes the relative resistances in that process and new challenges arise to accommodate\nthese systems\, calling for structured reactors. Ne w technologies\, like 3D printing offer new\nopportunities to meet these r equirements.\n\n*Bio*\n\nFreek Kapteijn (1952\, Amsterdam) graduated in 19 74 at the\nuniversity of Amsterdam in Chemistry and Mathematics. His\nPh.D . on the metathesis of alkenes was received at the same\nuniversity. As po stdoc he focused on Coal Science and\nHeterogeneous Catalysis. In 1987 he received a tenured\nposition at the University of Amsterdam.\nIn 1992 he m oved to Delft University of Technology\, where he\nwas appointed ‘Anthon ie van Leeuwenhoek’ professor in 1999.\nHe has assumed leadership of the Catalysis Engineering\nsection in 2008\, and became emeritus in 2018.\nKa pteijn had visiting appointments in Nancy\, France\n(Villermaux\, ENSIC) a nd Zürich\, Switzerland (Prins\, ETH)\, and as guest professor at\nZhejia ng Normal University\, China since 2008.\nHe is co-author of >660 publicat ions in scientific journals\, and thesis advisor of over 65\nPh.D. student s.\nResearch interests include the synthesis\, characterization and applic ation of structured\ncatalysts (metal-organic frameworks\, zeolites\, mono liths\, catalytic membranes) in\nmultiphase and multifunctional conversion processes\, adsorption and diffusion in\nzeolites\, MOFs and their membra nes\, and transient kinetics.\nSpecific examples of heterogeneous catalysi s cover Fischer-Tropsch synthesis\, MTO\,\nselective hydrogenation and oxi dation\, hydroisomerization\, N2O decomposition\, and fine\nchemicals prod uction. Energy efficient alternatives for alkane-alkene and CO2 separation \nby membranes and adsorptive heat pumps are subject of development. Light -matter\ninteractions are a special topic with MOFs\, targeting photocatal ysis and water splitting\,\nnext to their use in electrocatalysis for ener gy storage.\nKapteijn coordinated recently the EU-FP7 project M4CO2 (MOF-b ased mixed matrix\nmembranes for CO2 capture in pre- and post combustion)\ , developing energy efficient\nmembranes to reduce the costs of CO2 captur e. The follow-up MEMBER project targets\nnow the demonstration in practice .\nReceived recently the prestigious Golden Hoogewerff medal for his Catal ysis\nEngineering oeuvre and the IChemE Andrew medal for the same.\n\n\n[1 ] J. Gascon\, J. R. van Ommen\, J. A. Moulijn and F. Kapteijn (2015). Cata lysis Science & Technology\,\n5\, 807-817.\n[2] J.A. Moulijn\, M.T. Kreutz er\, T.A. Nijhuis\, F. Kapteijn (2011). Monolithic catalysts and reactors: \nHigh precision with low energy consumption\, in: B.C. Gates\, H. Knözin ger\, F. Jentoft (Eds.)\nAdvances in Catalysis\, Vol. 54\, Elsevier\, pp. 249-328.\n[3] R. Krishna and S. T. Sie (1994). Chemical Engineering Scienc e\, 49\, 4029-4065.\n[4] K. V. Pangarkar (2010). Solving the heat transpor t issue in multiphase fixed bed reactors\, PhD\nThesis\, Delft University of Technology.\n[5] F. Kapteijn\, J.A. Moulijn (2020). Structured catalyst s and reactors – Perspectives for demanding\napplications\, Catalysis To day\, https://doi.org/10.1016/j.cattod.2020.09.026\n[6] L. Oar-Arteta\, T. Wezendonk\, X. H. Sun\, F. Kapteijn and J. Gascon (2017). Materials Chemi stry\nFrontiers\, 1\, 1709-1745. LOCATION:https://teams.microsoft.com/l/meetup-join/19:b7df45856d814c06bdec 7db948bbaa39@thread.tacv2/1623258821761?context=%7B%22Tid%22:%2249a50445-b dfa-4b79-ade3-547b4f3986e9%22\,%22Oid%22:%22026c67ed-9f3a-40b8-9234-48eb65 76dfe8%22%7D END:VEVENT END:VCALENDAR