Chemical Engineering and Technology

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Rotor‐Stator and Disc Systems for Emulsification Processes
Chemical Engineering and Technology - Tập 29 Số 1 - Trang 24-31 - 2006
K. Urban, Gerhard Wagner, David Schaffner, Danny Röglin, J. Ulrich
AbstractEmulsions now find a wide range of applications in industry and daily life. In the pharmaceutical industry lipophilic active ingredients as well as many nutritional products such as vitamins are often formulated in the dispersed phase of oil‐in‐water emulsions. Emulsions can be produced with different mechanical emulsification techniques. In the following r...... hiện toàn bộ
Performance Evaluation of a Novel Concept “Open Plate Reactor” Applied to Highly Exothermic Reactions
Chemical Engineering and Technology - Tập 28 Số 9 - Trang 1028-1034 - 2005
Laurent Prat, Audrey Devatine, Patrick Cognet, M. Cabassud, C. Gourdon, Sébastien Elgue, F. Chopard
Particle Image Velocimetry of a Swirling Fluidized Bed at Different Blade Angles
Chemical Engineering and Technology - Tập 39 Số 6 - Trang 1151-1160 - 2016
Shaharin Anwar Sulaıman, Chin Swee Miin, Muhammad Yasin Naz, Vijay R. Raghavan
AbstractThe particle motion within a stable swirling operation regime of a fluidized bed is investigated. Particle image velocimetry was used to elaborate the hydrodynamics of multi‐sized particles fluidized at different air distributor blade angles. The experimental results revealed that the superficial velocity is the most prominent aspect affecting the hydrodyna...... hiện toàn bộ
Extraction and Purification of Bioproducts and Nanoparticles using Aqueous Two‐Phase Systems Strategies
Chemical Engineering and Technology - Tập 31 Số 6 - Trang 838-845 - 2008
Jorge Benavides, Oscar Aguilar, Blanca Lapizco‐Encinas, Marco Rito‐Palomares
AbstractAqueous Two‐Phase Systems (ATPS) is a primary recovery technique that has shown great potential for the efficient extraction and purification of high value biological compounds. The main advantages of this technique include scaling up feasibility, process integration capability and biocompatibility. In this review, the efficient use of ATPS for the extracti...... hiện toàn bộ
Scale‐Up of Oscillatory Helical Baffled Reactors Based on Residence Time Distribution
Chemical Engineering and Technology - Tập 40 Số 5 - Trang 907-914 - 2017
Safaa M.R. Ahmed, Anh N. Phan, Adam Harvey
AbstractFor the first time, the scale‐up of oscillatory helical baffled reactors (OHBR) was studied. Residence time distributions were used to assess the scale‐up over a wide range of net flow Reynolds numbers and oscillation conditions. A simple scale‐up correlation based on oscillation and net flow conditions was established to predict the plug flow behavior at v...... hiện toàn bộ
Fischer-Tropsch Synthesis: Modeling and Performance Study for Fe-HZSM5 Bifunctional Catalyst
Chemical Engineering and Technology - Tập 28 Số 1 - Trang 78-86 - 2005
Mahdi Ahmadi Marvast, Morteza Sohrabi, Saeed Zarrinpashne, Gh. Baghmisheh
Modeling of Multi‐Tubular Reactors for Fischer‐Tropsch Synthesis
Chemical Engineering and Technology - Tập 32 Số 8 - Trang 1164-1175 - 2009
Andreas Jess, Christoph Kern
AbstractThe results of the simulation of multi‐tubular Fischer‐Tropsch reactors based on a two‐dimensional pseudo‐homogeneous model are presented. The model takes into account the intrinsic kinetics of two commercial iron and cobalt catalysts, intraparticle mass transfer limitations, and the radial heat transfer within the fixed bed and to the cooling medium (boili...... hiện toàn bộ
Optimization of Oxygen Transfer through Membrane Diffusers for Biological Sweetening of Biogas
Chemical Engineering and Technology - Tập 36 Số 3 - Trang 513-518 - 2013
G.C. Rodrı́guez-Jimenes, Antonio David Dorado Castaño, Anna Bonsfills Pedrós, David Gabriel, Xavier Gamisans
AbstractBiological techniques for the removal of gaseous pollutants such as hydrogen sulfide (H2S) have proved to be effective, environmentally friendly, and economically viable. However, when high concentrations of H2S are treated, the process is severely restricted by the oxygen deficit in the liquid phase. The oxygen tra...... hiện toàn bộ
Synthesis and Thermal Energy Storage Properties of Erythritol Tetrastearate and Erythritol Tetrapalmitate
Chemical Engineering and Technology - Tập 34 Số 1 - Trang 87-92 - 2011
Ahmet Sarı, R. Eroğlu, Alper Biçer, Ali Karaipekli
AbstractErythritol tetrapalmitate (ETP) and erythritol tetrastearate (ETS) were synthesized as novel solid‐liquid phase change materials (PCM) by means of the direct esterification reaction of the erythritol with palmitic and stearic acids. The ETP and ETS esters were characterized chemically using FT‐IR and 1H NMR techniques. The energy storag...... hiện toàn bộ
Sulfur Removal from Low‐Sulfur Gasoline and Diesel Fuel by Metal‐Organic Frameworks
Chemical Engineering and Technology - Tập 33 Số 2 - Trang 275-280 - 2010
Sabine Achmann, Gunter Hagen, Martin Hämmerle, I.M. Malkowsky, C. Kiener, Ralf Moos
AbstractSeveral materials in the class of metal‐organic frameworks (MOF) were investigated to determine their sorption characteristics for sulfur compounds from fuels. The materials were tested using different model oils and common fuels such as low‐sulfur gasoline or diesel fuel at room temperature and ambient pressure. Thiophene and tetrahydrothiophene (THT) were...... hiện toàn bộ
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