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- Jacobs, A. (author), Vangrunderbeek, J. (author), Beckers, H. (author), De Schutter, F. (author), Luyten, J. (author), Van Landschoot, R. (author), Schoonman, J. (author), Kapteijn, F. (author), Moulijn, J. (author), Nater, K. (author), Prins, W. (author) journal article 1993
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- Meeuse, F.M. (author), De Deugd, R.M. (author), Kapteijn, F. (author), Verheijen, P.J.T. (author), Ypma, S.M. (author) journal article 2001
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Moulijn, J.A. (author), Perez-Ramirez, J. (author), Van Diepen, A. (author), Kreutzer, M.T. (author), Kapteijn, F. (author)The relevance of levels in space and time for chemical engineering are discussed. Catalysis Engineering is introduced as an emerging new discipline. In Catalysis Engineering three levels can be distinguished: the microlevel focusing on molecules and catalytic sites, the mesolevel focusing on the catalyst particle and the catalytic reactor, and...journal article 2003
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Quintanilla, A. (author), Casas, J.A. (author), Rodriquez, J.J. (author), Kreutzer, M.T. (author), Kapteijn, F. (author), Moulijn, J.A. (author)Wet oxidation of phenol over an Fe/activated carbon catalyst has been studied in a trickle-bed reactor in the following operational window: inlet C phenol=0.5 and 1 g/L, T=100-127 ºC, PT=3-8 atm, W=0-4.8 g, QL=0.125-2 mL/min and QO2=91.6 NmL/min. The experiments were carried out in the absence of mass transfer limitations. Oxidation and...journal article 2007
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Van Miltenburg, A. (author), Gascon, J. (author), Zhu, W. (author), Kapteijn, F. (author), Moulijn, J.A. (author)The adsorption of propylene and propane on zeolite NaX with and without a saturated (36 wt%) amount of CuCl have been investigated. The single component adsorption isotherms could be well described with a Dual-Site Langmuir model. The dispersion of CuCl results in a decrease of the maximum adsorption capacity of the zeolite for both components....journal article 2008
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De Lathouder, K.M. (author), Smeltink, M.W. (author), Straathof, A.J.J. (author), Paasman, M.A. (author), Van de Sandt, E.J.A.X. (author), Kapteijn, F. (author), Moulijn, J.A. (author)The objective of this work was to develop a hydrogel-coated monolith for the entrapment of penicillin G acylase (E. coli, PGA). After screening of different hydrogels, chitosan was chosen as the carrier material for the preparation of monolithic biocatalysts. This protocol leads to active immobilized biocatalysts for the enzymatic hydrolysis of...journal article 2008
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Gora, L. (author), Kuhn, J. (author), Baimpos, T. (author), Nikolakis, V. (author), Kapteijn, F. (author), Serwicka, E.M. (author)This report presents the development of new selective gas sensors utilizing a b-oriented silicalite-1 layer–magneto-elastic ribbon assembly. The key principle for the operation of these sensors is monitoring the changes in the resonance frequency of the Metglas® strip in relation to the concentration of a component in the gas phase. This...journal article 2009
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Bakker, J.J.W. (author), Zieverink, M.M.P. (author), Kapteijn, F. (author), Moulijn, J.A. (author), Kreutzer, M.T. (author)Segmented flow in standard GC capillary columns, with a heterogeneous Pd catalyst on the walls, gave rapid information about catalytic processes in them. The residence time and conversion was monitored visually, greatly simplifying bench-scale optimization. Examples show the benefits of the elimination of pore diffusion and axial dispersion....journal article 2011
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Binder, T. (author), Hibbe, F. (author), Chmelik, C. (author), Kärger, J. (author), Martinez-Joaristi, A. (author), Gascon, J. (author), Kapteijn, F. (author), Ruthven, D. (author)Nanoporous host materials giving rise to transient guest profiles of cylindrical symmetry during molecular uptake and release are shown to provide particularly advantageous conditions for the study of guest diffusion by micro-imaging. Considering zeolites of structure type DDR (Deca-dodecasil 3R) as a host system and short-chain length...journal article 2012
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- Puspitasari, I. (author), Saputra, P. (author), Morana, B. (author), Mele, L. (author), Santagata, F. (author), Creemer, J.F. (author), Kapteijn, F. (author), Kooyman, P.J. (author) journal article 2012
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Sartipi, S. (author), Parashar, K. (author), Makkee, M. (author), Gascon, J. (author), Kapteijn, F. (author)We report the combination of Fischer–Tropsch catalyst with acid functionality in one single catalyst particle. The resulting bifunctional catalyst is capable of producing gasoline range hydrocarbons from synthesis gas in one catalytic step with outstanding activities and selectivities.journal article 2012
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Ten Dam, J. (author), Djanashvili, K. (author), Kapteijn, F. (author), Hanefeld, U. (author)Screening of four commercial catalysts (Pt/Al2O3, Pt/SiO2, Pd/Al2O3, and Pd/SiO2) and four acidic additives (hydrochloric, tungstic, phosphotungstic, and silicotungstic acids) shows that the combination of a platinum hydrogenation catalyst with tungsten containing acidic additives yields 1,3-propanediol from aqueous glycerol. The performance of...journal article 2012
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- Zornoza, B. (author), Rodenas, T. (author), Tellez, C. (author), Coronas, J. (author), Gascon, J. (author), Kapteijn, F. (author) journal article 2012
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Rodenas, T. (author), Van Dalen, M. (author), Garcia-Perez, E. (author), Serra-Crespo, P. (author), Zornoza, B. (author), Kapteijn, F. (author), Gascon, J. (author)Mixed matrix membranes (MMMs) composed of metal organic framework (MOF) fi llers embedded in a polymeric matrix represent a promising alternative for CO 2 removal from natural gas and biogas. Here, MMMs based on NH 2 -MIL-53(Al) MOF and polyimide are successfully synthesized with MOF loadings up to 25 wt% and different thicknesses. At 308 K and ...journal article 2013
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Kruit, K.D. (author), Vervloet, D. (author), Kapteijn, F. (author), Van Ommen, J.R. (author)Non-ASF product distributions in Fischer–Tropsch synthesis can occur with a gradient in process conditions at the particle or reactor scale, leading to a gradient in chain growth probability a.Weighted summation of local product distributions gives the proper, non-ASF product distribution.journal article 2013
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Juan-Alcaniz, J. (author), Gielisse, R. (author), Lago, A.B. (author), Ramos-Fernandez, E.V. (author), Serra-Crespo, P. (author), Devic, T. (author), Guillou, N. (author), Serre, C. (author), Kapteijn, F. (author), Gascon, J. (author)In this work, the inclusion of free sulfonic acid groups in highly stable MOFs is explored. The synthesized catalysts have been applied in a model esterification reaction. Two metal organic frameworks bearing sulfonic acid moieties are investigated: HSO3-MIL-101(Cr) synthesized following different approaches and a new structure based on HSO3-bdc...journal article 2013
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Goesten, M.G. (author), Kapteijn, F. (author), Gascon, J. (author)Reticular design is a highly attractive concept, but coordination chemistry around the tectonic units of metal– organic frameworks (MOFs) and additional interplay with anionic and solvent species provide for dazzling complexity that effectively rules out structure prediction. We can however study the chemistry around pre-existing clusters, and...journal article 2013
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Nasalevich, M.A. (author), Goesten, M.G. (author), Savenije, T.J. (author), Kapteijn, F. (author), Gascon, J. (author)NH2-MIL-125(Ti) has been post-synthetically functionalized with dye-like molecular fragments. The new material (methyl red-MIL- 125(Ti)) exhibits improved light absorption over a wide range of the visible spectrum, and shows enhanced photocatalytic oxidation activity under visible light illumination. The consequences of functionalization and the...journal article 2013
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Sartipi, S. (author), Alberts, M. (author), Santos, V.P. (author), Nasalevich, M. (author), Gascon, J. (author), Kapteijn, F. (author)Mesoporous H-ZSM-5 (mesoH-ZSM-5) was used as a carrier for a series of bifunctional Co-based catalysts for Fischer–Tropsch synthesis with ZrO2 and/or Ru added as promoters. The reducibility of the catalysts was studied in detail by using temperature-programmed reduction and X-ray absorption spectroscopy. A comparison of the catalytic performance...journal article 2013
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Sartipi, S. (author), Jansma, H. (author), Bosma, D. (author), Boshuizen, B. (author), Makkee, M. (author), Gascon, J. (author), Kapteijn, F. (author)Design and operation of a “six-flow fixed-bed microreactor” setup for Fischer-Tropsch synthesis (FTS) is described. The unit consists of feed and mixing, flow division, reaction, separation, and analysis sections. The reactor system is made of five heating blocks with individual temperature controllers, assuring an identical isothermal zone of...journal article 2013