Chemical Engineering & Technology
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Recent Special Issues
Grinding and Dispersing
Edited by: Arno Kwade
Reactor Design & Process Intensification
Edited by: Jean-Claude Charpentier
Edited by: Joop H. ter Horst
Efficient Carbon Capture for Coal Power Plants
Edited by: Detlef Stolten
Recently Published Articles
- Beckmann Rearrangement of Cyclohexanone Oxime in a Microreactor Setup with Internal Recirculation
N. T. Zuidhof, M. H. J. M. de Croon, J. C. Schouten and J. T. Tinge
Article first published online: 14 JUN 2013 | DOI: 10.1002/ceat.201300088
A microreactor setup with internal recirculation operated in continuous mode was used to demonstrate Beckmann rearrangement of cyclohexanone oxime dissolved in cyclooctane with oleum to ϵ-caprolactam. At 100 °C, the conversion of cyclohexanone oxime was complete; selectivity towards ϵ-caprolactam was 99 %. However, cyclooctane as solvent reduced the purity of the produced ϵ-caprolactam.
- Sequestration of Carbon Dioxide with Simultaneous Formation of Fine Calcium Carbonate Particles in Liposomes
M. Yoshimoto and T. Koyama
Article first published online: 14 JUN 2013 | DOI: 10.1002/ceat.201200412
CaCO3 particles can be synthesized by mixing CaCl2-containing liposome suspension and CO2-saturated water as demonstrated by scanning transmission electron microscopy and energy-dispersive X-ray spectroscopy. The liposomal reaction system can be applied to the formation of fine CaCO3 particles through sequestration of CO2 under optimized conditions.
- Revamping Dimethyl Ether Separation to a Single-Step Process
A. A. Kiss and R. M. Ignat
Article first published online: 11 JUN 2013 | DOI: 10.1002/ceat.201300133
For the first time it is demonstrated that the conventional dimethyl ether DME purification and methanol recovery distillation sequence can be effectively converted into a single-step separation based on the dividing-wall column (DWC) technology. The novel proposed DWC alternative decreases the energy requirements by 28 % and the equipment costs by 20 %.
- Kinetics of Melt Crystallization of a Sunflower Oil-Based Polyunsaturated Fatty Acid Mixture
S. Dasgupta, P. Ay, R. Kommolk and S. Xu
Article first published online: 11 JUN 2013 | DOI: 10.1002/ceat.201200524
Melt crystallization is a promising technology for the production of enriched unsaturated fatty acid mixtures from polysaturated and unsaturated fatty acid mixtures obtained by hydrolysis of natural plant oils. The effects of supercooling and cooling rates on deciding factors affecting crystallization were evaluated by high-resolution polarized-light microscopy.
- Immobilization of Yarrowia lipolytica Lipase on Bamboo Charcoal to Resolve (R,S)-Phenylethanol in Organic Medium
X. Zhou, Q. Gao, W. Feng and K. Pan
Article first published online: 11 JUN 2013 | DOI: 10.1002/ceat.201200672
Yarrowia lipolytica lipase was immobilized on economical bamboo charcoal to catalyze the resolution of the model enantiomers (R,S)-1-phenylethanol in heptane, exhibiting a significantly improved enzymatic catalysis in comparison to free lipase. In contrast to activated charcoal, on bamboo charcoal more lipase with high enzymatic efficiency can be immobilized.