References of "Chemical Engineering and Technology"
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See detailOptimization of settling behavior for an efficient solvent-extraction process for bio-based components
Bednarz, Andreas; Scherübel, Peter; Spieß, Antje C. et al

in Chemical Engineering and Technology (2017), 40(10), 1852-1860

Extraction is a downstream-process option in bio-based processes. Since the knowledge of phase-separation behavior is essential for designing efficient separation processes, this study investigates the ... [more ▼]

Extraction is a downstream-process option in bio-based processes. Since the knowledge of phase-separation behavior is essential for designing efficient separation processes, this study investigates the settling and coalescence behavior of bio-based extraction systems using a standard lab-scale settling cell. The influence of different buffer media as well as of E. coli cells on coalescence was determined for the reactive extraction of hexane-1.6-diamine with isostearic acid and D2EHPA using kerosene and oleyl alcohol as diluents. As a result, an increasing pH value of the buffer significantly increases settling time. The presence of E. coli cells hinders the phase separation of the investigated systems, in particular with dispersed organic phases. [less ▲]

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See detailReDrop – A Simulation Tool for the Design of Extraction Columns Based on Single-Drop Experiments
Ayesterán, José; Kopriwa, Nicole; Buchbender, Florian et al

in Chemical Engineering and Technology (2015), 38(10), 1894-1900

The design of extraction columns based on information from lab experiments and appropriate simulation tools allows reduction of time and costs compared to conventional design methods using pilot-plant ... [more ▼]

The design of extraction columns based on information from lab experiments and appropriate simulation tools allows reduction of time and costs compared to conventional design methods using pilot-plant experiments. For this purpose, the behavior of drops and drop swarms is investigated in lab-scale experiments in order to create mathematical models containing system-specific parameters that have to be fitted to those experiments. These models are implemented in a simulation program that solves drop-population balances in extraction columns. At AVT-Thermal Process Engineering of the RWTH Aachen University this concept was implemented in the program ReDrop. ReDrop can predict the separation performance and flooding point of pulsed sieve tray and structured as well as random- packing extraction columns for standard and technical systems. The program has successfully been extended to columns with rotating internals. [less ▲]

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See detailBaker's yeast behavior during vacuum agitated contact drying
Bennamoun, Lyes ULiege; Afzal, Muhammad; Léonard, Angélique ULiege

in Chemical Engineering and Technology (2013), 36(10), 1795-1800

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See detailBiomass as Feedstock in the Chemical Industry - An examination from an Exergetic Point of View
Frenzel, Philipp; Fayyaz, Sara; Hillerbrand, Rafaela et al

in Chemical Engineering and Technology (2013), 36(2), 233-240

Crude oil is the most important raw material for the chemical industry. Due to the continually rising price of crude oil, alternative carbon sources are becoming increasingly important. Biomass is ... [more ▼]

Crude oil is the most important raw material for the chemical industry. Due to the continually rising price of crude oil, alternative carbon sources are becoming increasingly important. Biomass is basically the only available renewable carbon source. Because the chemical composition of biomass differs from fossil raw materials, the raw-material change also offers many chances for new product properties and applications. At the same time, the chemical processes have to be redesigned if the feedstock changes to biomass. Here, the effects of a raw-material change are examined on a rather generic level. The study is based on exergy balances and indicates that it is exergetically advisable to reconsider the previously established system of platform and basic chemicals. In general, exergy losses can be minimized if the synthesis pathways leading to the final products are adapted to the chemical structure of biomass. [less ▲]

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See detailImpact of Storage Duration on the Gaseous Emissions during Convective Drying of Urban Residual Sludges
Fraikin, Laurent ULiege; Salmon, Thierry ULiege; Herbreteau, B. et al

in Chemical Engineering and Technology (2011), 34(7), 1172--1176

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See detailSurfactant effects on aeration performance of stirred tank bioreactors
Martinov, M.; Gancel, F.; Jacques, Philippe ULiege et al

in Chemical Engineering and Technology (2008), (31), 1494-1500

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