Chemical Engineering & Technology

Cover image for Vol. 32 Issue 10

October, 2009

Volume 32, Issue 10

Pages 1453–1636

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Overview
    4. Contents
    5. Forum
    6. Scientific Highlights
    7. Reviews
    8. Research Articles
    9. Communications
    10. Book Reviews
  2. Overview

    1. Top of page
    2. Cover Picture
    3. Overview
    4. Contents
    5. Forum
    6. Scientific Highlights
    7. Reviews
    8. Research Articles
    9. Communications
    10. Book Reviews
    1. Overview Contents: Chem. Eng. Technol. 10/2009 (page 1453)

      Article first published online: 25 SEP 2009 | DOI: 10.1002/ceat.200990047

  3. Contents

    1. Top of page
    2. Cover Picture
    3. Overview
    4. Contents
    5. Forum
    6. Scientific Highlights
    7. Reviews
    8. Research Articles
    9. Communications
    10. Book Reviews
    1. Contents: Chem. Eng. Technol. 10/2009 (pages 1454–1458)

      Article first published online: 25 SEP 2009 | DOI: 10.1002/ceat.200990048

  4. Forum

    1. Top of page
    2. Cover Picture
    3. Overview
    4. Contents
    5. Forum
    6. Scientific Highlights
    7. Reviews
    8. Research Articles
    9. Communications
    10. Book Reviews
    1. Forum: Chem. Eng. Technol. 10/2009 (pages 1459–1460)

      Article first published online: 25 SEP 2009 | DOI: 10.1002/ceat.200990049

  5. Scientific Highlights

    1. Top of page
    2. Cover Picture
    3. Overview
    4. Contents
    5. Forum
    6. Scientific Highlights
    7. Reviews
    8. Research Articles
    9. Communications
    10. Book Reviews
  6. Reviews

    1. Top of page
    2. Cover Picture
    3. Overview
    4. Contents
    5. Forum
    6. Scientific Highlights
    7. Reviews
    8. Research Articles
    9. Communications
    10. Book Reviews
    1. Glycerol Reforming for Hydrogen Production: A Review (pages 1463–1469)

      P. D. Vaidya and A. E. Rodrigues

      Article first published online: 25 AUG 2009 | DOI: 10.1002/ceat.200900120

      Thumbnail image of graphical abstract

      By now, three types of glycerol reforming processes – steam, aqueous, and autothermal reforming – have been primarily investigated. A review of catalytic features and process parameters for H2 production is presented. An evaluation of the published literature suggests that there exists a scope for finding an efficient catalyst for H2 production from glycerol.

    2. Improvement of Flowability of Fine Cohesive Powders by Flow Additives (pages 1470–1483)

      J. Tomas and S. Kleinschmidt

      Article first published online: 4 SEP 2009 | DOI: 10.1002/ceat.200900173

      Thumbnail image of graphical abstract

      Most fine powders show problematic product properties, especially with regard to flow. This review provides an overview of the physico-chemically active principles of flow additives, model approaches and useful flowability evaluation methods. Conclusions are drawn with respect to the application of the flow additive method in process industries.

  7. Research Articles

    1. Top of page
    2. Cover Picture
    3. Overview
    4. Contents
    5. Forum
    6. Scientific Highlights
    7. Reviews
    8. Research Articles
    9. Communications
    10. Book Reviews
    1. Three-Dimensional Computational Fluid Dynamics Modeling of a Planar Solid Oxide Fuel Cell (pages 1484–1493)

      M. Ni

      Article first published online: 4 SEP 2009 | DOI: 10.1002/ceat.200900155

      Thumbnail image of graphical abstract

      Solid oxide fuel cells (SOFCs) are promising devices for clean power generation. A 3D computational fluid dynamics model is developed to study the coupled electrochemical reaction and heat/mass transfer in a planar SOFC. Parametric analyses are performed to understand the operating/structural parameters on SOFC performance.

    2. Benefit of Microscopic Diffusion Measurement for the Characterization of Nanoporous Materials (pages 1494–1511)

      J. Kärger, J. Caro, P. Cool, M.-O. Coppens, D. Jones, F. Kapteijn, F. Rodríguez-Reinoso, M. Stöcker, D. Theodorou, E. F. Vansant and J. Weitkamp

      Article first published online: 21 AUG 2009 | DOI: 10.1002/ceat.200900160

      Thumbnail image of graphical abstract

      Experimental progress in the pulsed field gradient technique of NMR and introduction of interference microscopy and IR micro-imaging are used to probe the transport properties of nanoporous materials. The accessible diffusion path lengths are shown to cover the range of particular relevance for the technological applications of these materials in heterogeneous catalysis, adsorption and separation.

    3. Preparation and Characterization of Imprinted Porous Materials with High Selectivity for Luteolin (pages 1512–1519)

      Y. Zhang, L. Xiang, T. Du, Y. Zhang and M. Lu

      Article first published online: 25 AUG 2009 | DOI: 10.1002/ceat.200900134

      Thumbnail image of graphical abstract

      Preparation process of imprinted porous material: Using the molecular imprinting technique, luteolin molecularly imprinted porous materials were formed by a reaction between vinyltriethoxysilane and TEOS in the presence of luteolin modified by acryloyl chloride, then by force of synergistic hydrolysis, sol-gel process, and elution of the template, etc.

    4. Catalytic Combustion of Toluene over a Copper-Manganese-Silver Mixed-Oxide Catalyst Supported on a Washcoated Ceramic Monolith (pages 1520–1526)

      J.-C. Zhou, D.-F. Wu, W. Jiang and Y.-D. Li

      Article first published online: 7 AUG 2009 | DOI: 10.1002/ceat.200900151

      Thumbnail image of graphical abstract

      Catalytic combustion is one of the most attractive ways of controlling emissions of volatile organic compounds (VOCs), since the oxidation of VOCs over a catalyst takes place at temperatures much lower than that required for thermal incineration. A series of copper-manganese-silver mixed-oxide catalysts supported on a washcoated ceramic monolith was examined for the catalytic combustion of toluene.

    5. Extraction of Amino Acid Enantiomers with Microemulsions (pages 1527–1534)

      P. Dimitrova and H.-J. Bart

      Article first published online: 25 SEP 2009 | DOI: 10.1002/ceat.200900276

      Thumbnail image of graphical abstract

      The enantioselective extractions of phenylalanine and tryptophane with oil-in-water microemulsion are investigated, where Igepal CO-630 is used as a non-ionic surfactant and cyclohexane is employed as the organic phase. In order to investigate the complexation chemistry, experiments are performed at different conditions.

    6. Design of Simulated Moving Bed Plants by Using Noncompetitive Langmuir Isotherms (pages 1535–1541)

      M. Fütterer

      Article first published online: 25 SEP 2009 | DOI: 10.1002/ceat.200800397

      Thumbnail image of graphical abstract

      A general method for determining the control variables for a dispersion-free simulated moving bed (SMB) process is presented. For noncompetitive Langmuir isotherms, explicit equations are derived for the case of complete separation. The proposed method allows a good estimation of the time trajectories of the concentrations at the drains and the design of new applications for optimization and control of SMB plants.

    7. Comparison of an Ion Exchanger and an In-House Electrodialysis Unit for Recovery of L-Lactic Acid from Fungal Fermentation Broth (pages 1542–1549)

      W. Boonkong, P. Sangvanich, A. Petsom and N. Thongchul

      Article first published online: 25 AUG 2009 | DOI: 10.1002/ceat.200900125

      Thumbnail image of graphical abstract

      The efficacies of lactic acid recovery from fungal fermentation broth by fixed-bed ion exchange process and in-house electrodialysis are compared. Higher lactic acid recovery yield and purity are obtained from the in-house electrodialysis compared to the fixed-bed column loaded with Dowex Marathon WBA anion exchange resin.

    8. Evaluation of Optimization Metrics for Continuous Fermentation of Plasmid DNA (pages 1550–1559)

      W. J. Kelly, M. Balguri, A. B. Asoor, J. R. Piccini and K. R. Muske

      Article first published online: 4 AUG 2009 | DOI: 10.1002/ceat.200900081

      Thumbnail image of graphical abstract

      An evaluation of cumulative productivity metrics for optimizing the continuous fermentation of plasmid DNA (pDNA) was carried out. The results indicate that different optimum run times are predicted based upon the choice of the optimization metric. The analysis presented can also be applied to other intracellular bioproduct continuous fermentation systems.

    9. Batch Grinding in Laboratory Ball Mills: Selection Function (pages 1560–1566)

      G. Matijašic and A. Glasnovic

      Article first published online: 4 SEP 2009 | DOI: 10.1002/ceat.200900114

      Thumbnail image of graphical abstract

      One of the effective ways that lead to the reduction in energy consumption and the increase in efficiency in comminution technology is via a better understanding of process kinetics. The principle of starting and maximal selection function values proposed in this work can be an efficient way of transferring kinetic data between different comminution machines.

    10. Mass Transfer Enhancement in Double-Pass, Parallel-Plate Mass Exchangers under Asymmetric Wall Fluxes (pages 1567–1577)

      C.-D. Ho, P.-C. Lee and J.-W. Tu

      Article first published online: 21 AUG 2009 | DOI: 10.1002/ceat.200900121

      Thumbnail image of graphical abstract

      A new double-pass, mass exchanger is designed to improve the mass transfer efficiency under asymmetric wall mass fluxes. A 2D mathematical model for the mass transfer conjugated Graetz problem is developed to predict the concentration profiles and mass transfer efficiency.

    11. Explicit Nonlinear Predictive Control of a Distillation Column Based on Neural Models (pages 1578–1587)

      M. Ławryńczuk

      Article first published online: 25 AUG 2009 | DOI: 10.1002/ceat.200900074

      Thumbnail image of graphical abstract

      When compared to MPC with Nonlinear Optimization (MPC-NO) and numerical MPC-NPL with quadratic programming, the computational cost (MFLOPS) of the explicit MPC-NPL algorithm is seen to be the lowest. For the distillation column considered, the control accuracy obtained is very good, and is comparable to that obtained in numerical MPC-NPL and MPC-NO.

    12. Estimation of Kinetic Parameters for Hydrogenation Reactions Using a Genetic Algorithm (pages 1588–1594)

      A. Kadiva, M. Taghi Sadeghi, R. Sotudeh-Gharebagh and M. Mahmudi

      Article first published online: 4 SEP 2009 | DOI: 10.1002/ceat.200900070

      Thumbnail image of graphical abstract

      The performance of an acetylene hydrogenation reactor is highly depending on the kinetics of reactions occurring during the process. Three different kinetic models were examined to simulate the hydrogenation reactor under industrial operating conditions. A genetic algorithm is employed to optimize the kinetic parameters of the models.

    13. Multi-Step Controlled Kinetics of the Transesterification of Crude Soybean Oil with Methanol by Mg(OCH3)2 (pages 1595–1604)

      K. Huang, Q.-L. Xu, S.-P. Zhang, Z.-W. Ren and Y.-J. Yan

      Article first published online: 25 AUG 2009 | DOI: 10.1002/ceat.200900089

      Thumbnail image of graphical abstract

      A kinetic model that can be expressed as three significant controlled regions is discussed for the transesterification of crude soybean oil with methanol to biodiesel (FAME) using Mg(OCH3)2 as the catalyst. According to the confirmation experiments, it is indicated that the results can be applied for predicting the FAME yield at other reaction temperatures.

    14. Average Crossflow Velocity in Laminar Flow Systems with Periodic Finned Surfaces (pages 1605–1616)

      B. O. Olayiwola, G. Schaldach and P. Walzel

      Article first published online: 25 SEP 2009 | DOI: 10.1002/ceat.200800507

      Thumbnail image of graphical abstract

      Experimental and CFD studies of the enhanced average crossflow velocity in a laminar flow system are performed. Three experi-mental configurations are studied, i.e., oscillating finned surface in a fluid at rest, steady finned flow and oscillating finned flow. The results illustrate the potential usefulness of the oscillation finned configuration to trigger signi-ficant transverse velocity in laminar flow systems.

    15. Thermodynamics on Landfill Gas Reforming (pages 1617–1624)

      C. Miao, C. Pasel, M. Luckas and J.-D. Herbell

      Article first published online: 4 SEP 2009 | DOI: 10.1002/ceat.200800582

      Thumbnail image of graphical abstract

      Energy from alternative and renewable resources is of vital interest worldwide. Landfill gas is a type of methane-rich biogas which supplies renewable resources for clean fuels production. The characteristics and optimum conditions of simulated landfill gas and biogas reforming reactions for H2 production are investigated.

  8. Communications

    1. Top of page
    2. Cover Picture
    3. Overview
    4. Contents
    5. Forum
    6. Scientific Highlights
    7. Reviews
    8. Research Articles
    9. Communications
    10. Book Reviews
    1. Fixed-Bed Adsorption Study for Fumaric Acid Removal from Aqueous Solutions by Amberlite IRA-400 Resin (pages 1625–1629)

      Y.-Q. Fu, Y. Chen, S. Li and H. Huang

      Article first published online: 4 SEP 2009 | DOI: 10.1002/ceat.200900138

      Thumbnail image of graphical abstract

      A fixed-bed adsorption system coupled with a fermentation process is more and more used in the organic acid production. The adsorption behavior of fumaric acid in a fixed-bed ion-exchange column was studied. The Yoon–Nelson model was applied to experimental data to predict the breakthrough curves and to determine the characteristic column parameters required for process design.

    2. Discrete Element Method Simulation of the Effect of Tumbling Time and Particle Size in a 300-mm Diameter Mill (pages 1630–1634)

      M. Khanal and R. Morrison

      Article first published online: 4 SEP 2009 | DOI: 10.1002/ceat.200900115

      Thumbnail image of graphical abstract

      When ore particles are placed in a tumbling mill, they are subjected to breakage from interparticle collisions or particle-mill shell collisions. The measured abrasion characteristics of soft to hard ore materials are compared with the estimated effect of tumbling time and particle size on particle interactions using three-dimensional discrete element method (DEM) simulations.

  9. Book Reviews

    1. Top of page
    2. Cover Picture
    3. Overview
    4. Contents
    5. Forum
    6. Scientific Highlights
    7. Reviews
    8. Research Articles
    9. Communications
    10. Book Reviews

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