Chemical Engineering & Technology

Cover image for Vol. 38 Issue 9

September, 2015

Volume 38, Issue 9

Pages 1497–1683

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Highlights
    7. Research Articles
    8. Communication
    9. Overview
    1. Cover Chem. Eng. Technol. 9/2015 (page 1497)

      Article first published online: 26 AUG 2015 | DOI: 10.1002/ceat.201590045

  2. Editorial Board

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Highlights
    7. Research Articles
    8. Communication
    9. Overview
    1. Editorial Board Chem. Eng. Technol. 9/2015 (page 1498)

      Article first published online: 26 AUG 2015 | DOI: 10.1002/ceat.201590046

  3. Overview

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Highlights
    7. Research Articles
    8. Communication
    9. Overview
    1. Overview Contents: Chem. Eng. Technol. 9/2015 (page 1499)

      Article first published online: 26 AUG 2015 | DOI: 10.1002/ceat.201590047

  4. Contents

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Highlights
    7. Research Articles
    8. Communication
    9. Overview
    1. Contents: Chem. Eng. Technol. 9/2015 (pages 1500–1506)

      Article first published online: 26 AUG 2015 | DOI: 10.1002/ceat.201590048

  5. Highlights

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Highlights
    7. Research Articles
    8. Communication
    9. Overview
    1. Highlights: Chem. Eng. Technol. 9/2015 (pages 1508–1509)

      Article first published online: 26 AUG 2015 | DOI: 10.1002/ceat.201590049

  6. Research Articles

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Highlights
    7. Research Articles
    8. Communication
    9. Overview
    1. Microbial Fuel Cell Application for Azoic Dye Decolorization with Simultaneous Bioenergy Production Using Stenotrophomonas sp. (pages 1511–1518)

      Said Galai, Antonia Pérez de los Ríos, Francisco José Hernández-Fernández, Sihem Haj Kacem, Francisco Mateo Ramírez and Joaquín Quesada-Medina

      Article first published online: 6 AUG 2015 | DOI: 10.1002/ceat.201400608

      Thumbnail image of graphical abstract

      Microbial decolorization is an environmentally friendly and cost-competitive alternative to chemical decomposition. A microbial fuel cell is presented as a promising technology for decolorizing an azoic dye with simultaneous energy production based on the use of the single bacteria strain Stenotrophomonas sp. and a low-cost highly saline marine water-glucose-yeast extract medium.

    2. Performance Evaluation of Two High-Shear Impellers in an Unbaffled Stirred Tank (pages 1519–1529)

      Ruben Ramírez-Gómez, Daniel García-Cortés, Gaston Martínez-de Jesús, Margarita M. González-Brambila, Alejandro Alonso, Sergio A. Martínez-Delgadillo and Jorge Ramírez-Muñoz

      Article first published online: 6 AUG 2015 | DOI: 10.1002/ceat.201400792

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      Information about standard high-shear impellers operating in the transitional flow regime at low Reynolds numbers is still scarce. The hydrodynamics of two commercial ring-style disperser mixers is evaluated by computational fluid dynamic analysis together with experimental measurements of power draw and their performance is compared with the standard Rushton turbine.

    3. Chaotic Analysis of the Concentration Field in a Submerged Impinging Stream Mixer (pages 1530–1536)

      Jianwei Zhang, Xin Dong, Hongyue Ma, Xiaoming Li and Ying Feng

      Article first published online: 5 AUG 2015 | DOI: 10.1002/ceat.201400406

      Thumbnail image of graphical abstract

      The chaos theory is applied to analyze the concentration signal of a flow field. In order to study the abundant information of concentration signals in a submerged impinging stream mixer, planar laser-induced fluorescence was applied to measure its 2D concentration field. Operating conditions were varied to obtain the optimal microcosmic mixture effect.

    4. Low-Temperature Selective Catalytic Reduction of NO on an Iron Ore Catalyst in a Magnetically Fluidized Bed (pages 1537–1542)

      Keting Gui, Hui Liang, Fang Wang, Xiaobo Wang and Guihuan Yao

      Article first published online: 30 JUL 2015 | DOI: 10.1002/ceat.201400190

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      Iron ore is a kind of inexpensive and low-temperature catalytic material for NO removal, but still exhibits poor removal efficiency. With the aid of ferromagnetic iron, the NO removal efficiency can be greatly improved in the entire experimental temperature range by using an admixture of iron ore and iron as catalyst in a magnetically fluidized bed.

    5. Power Requirement for Mixing Shear-Thinning Fluids with a Planetary Mixer (pages 1543–1549)

      Frederic Auger, Christophe André, Laurent Bouvier, Andreas Redl, Marie-Hélène Morel and Guillaume Delaplace

      Article first published online: 30 JUL 2015 | DOI: 10.1002/ceat.201400345

      Thumbnail image of graphical abstract

      Knowledge of the power demand of mixing equipment is required for the optimal control of processes with non-Newtonian liquids. The power demand of a planetary mixer is studied in the case of shear-thinning fluids. An extension of the concept of Metzner and Otto to such mixers is proposed and found to be applicable to predict power consumption.

    6. Kinetic Modeling of Sunflower Oil Methanolysis Catalyzed by Calcium-Based Catalysts (pages 1550–1556)

      Marija B. Tasić, Marija R. Miladinović, Olivera S. Stamenković, Vlada B. Veljković and Dejan U. Skala

      Article first published online: 30 JUL 2015 | DOI: 10.1002/ceat.201500076

      Thumbnail image of graphical abstract

      A kinetic model of sunflower oil methanolysis that includes the changing reaction mechanism and the triacylglycerol (TAG) mass transfer is verified for calcium-based catalysts such as neat CaO, quicklime, CaO·ZnO, and Ca(OH)2. The model is a reliable predictor of the time variation of TAG and fatty acid methyl ester concentrations during sunflower oil methanolysis.

    7. Heterogeneous Catalyst of Mixed K Compounds/Ca-Al-Graphite Oxide for the Transesterification of Soybean Oil to Biodiesel (pages 1557–1564)

      Chuanjia Sun, Fengxian Qiu, Dongya Yang and Bin Ye

      Article first published online: 30 JUL 2015 | DOI: 10.1002/ceat.201400084

      Thumbnail image of graphical abstract

      A novel heterogeneous solid base catalyst prepared by loading of Ca-Al-graphite oxide with mixed potassium salts was applied to the transesterification of soybean oil with methanol to produce biodiesel. Under the identified optimum reaction conditions, the catalyst retained its activity during four reaction cycles, while it could be easily separated from the reaction system.

    8. A Comprehensive Computational Fluid Dynamics Study of Droplet-Film Impact and Heat Transfer (pages 1565–1573)

      Fan Jiang, Yijun Wang, Jianhua Xiang and Zhenzhang Liu

      Article first published online: 30 JUL 2015 | DOI: 10.1002/ceat.201400255

      Thumbnail image of graphical abstract

      The impact of a liquid droplet on a hot surface with pre-existing liquid film is numerically simulated. Effects of wall temperature, thickness of liquid film, droplet diameter, fall velocity, droplet material, and temperature of droplet and wall on the heat transfer are investigated. The results can provide a reference for design, evaluation, and improvement of spray-cooling systems.

    9. Two Analytical Approaches for Solution of Population Balance Equations: Particle Breakage Process (pages 1574–1584)

      Abdelmalek Hasseine, Samra Senouci, Menwer Attarakih and Hand-Jörg Bart

      Article first published online: 30 JUL 2015 | DOI: 10.1002/ceat.201400769

      Thumbnail image of graphical abstract

      For the breakage process only few cases of analytical solutions are available, being mostly valid for batch stirred vessels. The Adomian decomposition and homotopy perturbation methods were successfully applied to find the exact solutions of a specific form of the population balance equation for batch and continuous flow systems for particle breakage in stirred vessels.

    10. Continuous Hydrogenation of Toluene over Sr- and PEG800-Modified Ni/γ-Al2O3 Catalysts (pages 1585–1590)

      Hailong Chu, Na Li, Libo Niu, Chen Liu, Mande Qiu and Guoyi Bai

      Article first published online: 30 JUL 2015 | DOI: 10.1002/ceat.201400543

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      A suitable cost-effective catalyst with low Ni loading for hydrogenation of toluene under mild reaction conditions is required. A continuous process for the highly selective synthesis of methylcyclohexane via hydrogenation of toluene using γ-Al2O3-supported nickel-based catalysts under such conditions is established. A Ni-Sr-PEG800/γ-Al2O3 catalyst showed the best catalytic performance.

    11. Controllability Analysis of Process Alternatives for Biobutanol Purification (pages 1591–1598)

      Anyeli Yahaira Angelina-Martínez, Eduardo Sánchez-Ramírez, Juan José Quiroz-Ramírez and Juan Gabriel Segovia-Hernández

      Article first published online: 12 AUG 2015 | DOI: 10.1002/ceat.201500103

      Thumbnail image of graphical abstract

      The development of alternative technologies for biobutanol production by fermentation allows for an economically viable process with less energy-intensive separation and purification compared to the petrochemical pathway. Control properties of four different possible process designs for biobutanol purification are analyzed and the dynamic behavior of optimized study cases is evaluated.

    12. Adaptive Internal Model Control of a High-Purity Heat-Integrated Air Separation Column (pages 1599–1607)

      Yao Fu and Xinggao Liu

      Article first published online: 28 JUL 2015 | DOI: 10.1002/ceat.201400393

      Thumbnail image of graphical abstract

      Control schemes on high-purity heat-integrated air separation columns are still lacking. Therefore a dynamic model of such a column is established. On this basis the open-loop dynamic response and characteristics are analyzed and an internal model control scheme is proposed. An adaptive internal model control scheme is presented to correct the model parameters online.

    13. Large Eddy Simulation of Turbulent Reactive Mixing at High Schmidt and Reynolds Numbers (pages 1608–1616)

      Matthias Walter, Nikolai Kornev and Egon Hassel

      Article first published online: 28 JUL 2015 | DOI: 10.1002/ceat.201400371

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      A comparative large eddy simulation study of a fast reactive mixing process has been performed using established micromixing models. The numerical results show that the micromixing effects, especially at high Schmidt numbers, can be essential, although the reaction is very fast. An enhanced conditional model for infinitely fast chemistry has been successfully applied to the mixer configuration.

    14. Stereoselective Behavior of Nafion® Membranes towards (+)-α-Pinene and (−)-α-Pinene (pages 1617–1624)

      Libuše Brožová, Jan Žitka, Petr Sysel, Štěpán Hovorka, Alena Randová, Jan Storch, Marie Kačírková and Pavel Izák

      Article first published online: 6 AUG 2015 | DOI: 10.1002/ceat.201400621

      Thumbnail image of graphical abstract

      Perfluorinated Nafion® membranes are applied for the manufacture of ion-exchange membranes. Their stereoselective behavior towards (+/−)-α-pinene proved to depend on the thermal history of the membranes: a cast Nafion® membrane treated at low temperature sorbs preferentially (−)-α-pinene while the same membrane treated at high temperature sorbs preferentially (+)-α-pinene.

    15. Hydrogenation of Nitrobenzene over a Pd/Al2O3 Catalyst – Mechanism and Effect of the Main Operating Conditions (pages 1625–1636)

      Clara Sá Couto, Luis M. Madeira, Clemente Pedro Nunes and Paulo Araújo

      Article first published online: 26 AUG 2015 | DOI: 10.1002/ceat.201400468

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      The catalytic hydrogenation of nitrobenzene is an important reaction in the production of aniline for the polyurethane industry. The Pd-based catalyst used here is very selective towards aniline at high nitrobenzene concentration, while at low concentrations the formation of by-products is dominant. Benzene production was verified and quantified and added to the reaction network proposed for the formation of aniline and by-products.

    16. Preparation of Highly Active Nickel Catalysts Supported on Mesoporous Nanocrystalline γ-Al2O3 for Methane Autothermal Reforming (pages 1637–1645)

      Soodeh Sepehri and Mehran Rezaei

      Article first published online: 12 AUG 2015 | DOI: 10.1002/ceat.201400566

      Thumbnail image of graphical abstract

      Ni/Al2O3 catalysts with different Ni loadings were produced by a simple impregnation method while the γ-Al2O3 support was synthesized by the sol-gel method. The catalyst support had a mesoporous nanocrystalline structure with a high specific surface area. Methane conversion significantly increased with increasing Ni content, with the 25 % Ni/Al2O3 catalyst showing the highest activity.

    17. Gas-Liquid Mass Transfer Rates and Impeller Power Consumptions for Industrial Vessel Design (pages 1646–1653)

      Libor Labík, Tomáš Moucha, Michal Kordač, František J. Rejl and Lukáš Valenz

      Article first published online: 26 AUG 2015 | DOI: 10.1002/ceat.201500209

      Thumbnail image of graphical abstract

      Correlations for the impeller power input and the volumetric mass transfer coefficient as key parameters for the design of gas-liquid contactors were proposed for the scale-up, design, and performance optimization of gassed agitated vessels. The tests for both cases of coalescent and non-coalescent batches proved the reliability of the correlations for a wide range of experimental conditions.

    18. Software for Simulation of Second-Generation Ethanol Production by a Simultaneous Saccharification and Fermentation Process (pages 1654–1658)

      Marcelo B. Silva and Luciana M. Inácio

      Article first published online: 5 AUG 2015 | DOI: 10.1002/ceat.201400596

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      As an example of biofuel, the so-called second-generation ethanol can be obtained from lignocellulosic biomass. The production of this kind of ethanol by simultaneous saccharification and fermentation in a batch reactor is simulated with a newly developed software. Higher concentrations of ethanol are achieved using higher initial concentrations of active enzyme and cells.

    19. Succinic Acid Production in Fed-Batch Fermentation of Anaerobiospirillum succiniciproducens Using Glycerol as Carbon Source (pages 1659–1664)

      Karlheinz Bretz

      Article first published online: 30 JUL 2015 | DOI: 10.1002/ceat.201500015

      Thumbnail image of graphical abstract

      The optimization of the glycerol concentration and the addition of small amounts of glucose improves growth and succinic acid production of Anaerobiospirillum succiniciproducens. In fed-batch experiments the final succinic acid concentration could be improved with glycerol-glucose mixtures by factor 2.5 in comparison to glycerol as sole carbon source.

    20. Breakage and Particle Size Redistribution in an Ultrasound-Intensified Leaching Process (pages 1665–1670)

      Jiang Xiong Gao, Hou Quan Huang, Xiao Xia Li, Fei Hu Du, Lin Bo Li and Jing Sheng Li

      Article first published online: 13 AUG 2015 | DOI: 10.1002/ceat.201400703

      Thumbnail image of graphical abstract

      Ultrasound can improve leaching yields and save leaching time in liquid-solid systems because it reduces the size of solid particles and makes the solution more turbulent. The mechanism of ultrasound-assisted breakage of solid particles, the particle size redistribution of pure silica particles after breakage, and the role of chemical reactions in this process are investigated.

    21. Polymer-Based Spherical Activated Carbons in Combination with TS-1 as Efficient Epoxidation Catalysts (pages 1671–1676)

      Patrick C. With, Nicole Wilde, Antje Modrow, Sven Fichtner, Bertram Böhringer and Roger Gläser

      Article first published online: 12 AUG 2015 | DOI: 10.1002/ceat.201500366

      Thumbnail image of graphical abstract

      The heterogeneously catalyzed epoxidation of biodiesel with H2O2 over a composite material combining the catalytically active titanium silicalite-1 (TS-1) with the sorptive functionality of a polymer-based spherical activated carbon is studied. The catalytic activity of the composite is nearly four times higher than that of an industrial TS-1 reference catalyst.

  7. Communication

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Highlights
    7. Research Articles
    8. Communication
    9. Overview
    1. Full Superstructure for Multiobjective Optimization of Multicolumn Chromatography for Ternary Separations (pages 1677–1682)

      Gaurav Agrawal and Yoshiaki Kawajiri

      Article first published online: 5 AUG 2015 | DOI: 10.1002/ceat.201500104

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      The full ternary superstructure for multicolumn chromatographic separation is proposed embedding many different operations for the first time and numerical nonlinear optimization is applied to obtain the optimal operation. A multiobjective optimization problem was solved to evaluate the compromise between throughput and purity of the target component.

  8. Overview

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Highlights
    7. Research Articles
    8. Communication
    9. Overview
    1. You have free access to this content
      Overview Contents: Chemie Ingenieur Technik 9/2015 (page 1683)

      Article first published online: 26 AUG 2015 | DOI: 10.1002/ceat.201590050

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