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pro vyhledávání: '"L.A. Hulshof"'
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Autor:
Evgeny V. Rebrov, N.G. Patil, L.A. Hulshof, Erik D. C. Esveld, J Jan Meuldijk, F. Benaskar, Volker Hessel, JC Jaap Schouten
Publikováno v:
AIChE Journal, 60(11), 3824-3832
AIChE Journal 60 (2014) 11
AIChE Journal, 60(11), 3825-3832. American Institute of Chemical Engineers (AIChE)
AIChE Journal 60 (2014) 11
AIChE Journal, 60(11), 3825-3832. American Institute of Chemical Engineers (AIChE)
This article describes the results of a modeling study performed to understand the microwave heating process in continuous-flow reactors. It demonstrates the influence of liquid velocity profiles on temperature and microwave energy dissipation in a m
Autor:
N.G. Patil, F. Benaskar, L.A. Hulshof, A.I.G. Hermans, J Jan Meuldijk, Volker Hessel, J.C. Schouten, Evgeny V. Rebrov
Publikováno v:
AIChE Journal, 58(10), 3144-3155. American Institute of Chemical Engineers (AIChE)
A continuously operated microwave heated millireactor setup has been developed for performing reactions of highly microwave absorbing media in a controlled and energy efficient manner. The setup consists of a tubular reactor integrated with a heat ex
Autor:
J.C. Schouten, Evgeny V. Rebrov, Volker Hessel, N.G. Patil, F. Benaskar, Volker Engels, L.A. Hulshof, J Jan Meuldijk, Andrew E. H. Wheatley
Publikováno v:
Benaskar, F, Patil, N G, Meuldijk, J, Hulshof, L A, Hessel, V, Schouten, J C, Engels, V, Wheatley, A E H & Rebrov, E V 2012, ' Microwave-assisted Cu-catalyzed Ullmann ether synthesis in a continuous-flow milli-plant ', Chemical Engineering Journal, vol. 207-208, pp. 426-439 . https://doi.org/10.1016/j.cej.2012.06.147
Chemical Engineering Journal, 207-208, 426-439. Elsevier
Chemical Engineering Journal, 207-208, 426-439. Elsevier
The combination of milli-scale processing and microwave heating has been investigated for the Cu-catalyzed Ullmann etherification in fine-chemical synthesis, providing improved catalytic activity and selective catalyst heating. Wall-coated and fixed-
Autor:
Konstantin S. Ostras, Nikolay Yu. Gorobets, L.A. Hulshof, Oleg V. Shishkin, Alexander Yu. Voloshko, Ludmila V. Gudzenko, Valentin A. Chebanov, Natalia A. Pinchukova
Publikováno v:
Chemical Engineering and Processing: Process Intensification. 50:1193-1197
A vacuum microwave-assisted dehydration process of orthophosphoric acid for preparation of polyphosphoric acid was studied in comparison with the conventional dehydration in terms of energy efficiency and process rates. The influence of the applied m
Autor:
N.G. Patil, J.C. Schouten, A. Ben-Abdelmoumen, Evgeny V. Rebrov, Volker Hessel, J Jan Meuldijk, L.A. Hulshof, F. Benaskar, Ulrich Krtschil
Publikováno v:
Journal of Flow Chemistry, 1(2), 74-89. Akademiai Kiadó
An extended cost study consisting of 14 process scenarios was carried out to envisage the cost impact of microprocessing and microwaves separately or in combination for two liquid-phase model reactions in fine-chemicals synthesis: (1) Ullmann C–O c
Autor:
Volker Engels, David A. Jefferson, N.G. Patil, Evgeny V. Rebrov, Volker Hessel, JC Jaap Schouten, L.A. Hulshof, J Jan Meuldijk, F. Benaskar, Andrew E. H. Wheatley
Publikováno v:
Tetrahedron Letters, 51(2), 248-251. Elsevier
The action of nanoparticulate copper catalysts with a mean particle size of 10 nm in the Ullmann ether synthesis is reported using multimode microwave heating and employing stable chloropyridine salts and unactivated phenol, with stabilized copper na
Publikováno v:
Organic Process Research & Development, 13(5), 888-895. American Chemical Society
The racemization of N-acetylindoline-2-carboxylic acid in p-xylene revealed beneficial rate enhancements due to microwave effects, by comparing conventional and microwave heating. The magnitude of this effect was governed by the degree of heterogenei
Autor:
Bart A. C. van As, Luc Roumen, Peter A. J. Hilbers, E. W. Meijer, Marloes Verbruggen, Anja R. A. Palmans, Jeroen van Buijtenen, K. Pieterse, L.A. Hulshof, Jef A. J. M. Vekemans
Publikováno v:
Journal of the American Chemical Society, 129(23), 7393-7398. American Chemical Society
Novozym 435-catalyzed ring-opening of a range of omega-methylated lactones demonstrates fascinating differences in rate of reaction and enantioselectivity. A switch from S- to R-selectivity was observed upon going from small (ring sizesor=7) to large
Autor:
Bastiaan H. P. van de Kruijs, L.A. Hulshof, J Jan Meuldijk, Mark H. C. L. Dressen, Jef A. J. M. Vekemans
Publikováno v:
Organic Process Research & Development, 11(3), 865-869. American Chemical Society
A consistent setup of experiments has been conducted to demonstrate an enhanced reaction rate under microwave irradiation as compared to conventional heating, i.e. a real microwave effect. It was found that addition of a cosolvent, diminishing the he