Chemical Engineering & Technology

Cover image for Vol. 36 Issue 1

January, 2013

Volume 36, Issue 1

Pages 3–191

  1. Cover Picture

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Erratum
    7. Editorial
    8. Highlights
    9. Reviews
    10. Research Articles
    11. Communication
    1. You have free access to this content
      Cover Chem. Eng. Technol. 1/2013

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201290083

  2. Editorial Board

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Erratum
    7. Editorial
    8. Highlights
    9. Reviews
    10. Research Articles
    11. Communication
    1. Editorial Board Chem. Eng. Technol. 1/2013

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201290085

  3. Overview

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Erratum
    7. Editorial
    8. Highlights
    9. Reviews
    10. Research Articles
    11. Communication
    1. Overview Contents: Chem. Eng. Technol. 1/2013 (page 3)

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201290086

  4. Contents

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Erratum
    7. Editorial
    8. Highlights
    9. Reviews
    10. Research Articles
    11. Communication
    1. You have free access to this content
      Contents: Chem. Eng. Technol. 1/2013 (pages 4–10)

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201290087

  5. Erratum

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Erratum
    7. Editorial
    8. Highlights
    9. Reviews
    10. Research Articles
    11. Communication
    1. You have free access to this content
      New Konjac Glucomannan-PVA Composite Membrane for Application in Pervaporation Dehydration of Caprolactam Solution (page 10)

      W. Lin, Qi. Li and T. Zhu

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201290081

      This article corrects:
  6. Editorial

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Erratum
    7. Editorial
    8. Highlights
    9. Reviews
    10. Research Articles
    11. Communication
    1. You have free access to this content
      Chemical Engineering & Technology is in full swing! (page 11)

      Barbara Böck

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201290082

  7. Highlights

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Erratum
    7. Editorial
    8. Highlights
    9. Reviews
    10. Research Articles
    11. Communication
    1. Highlights: Chem. Eng. Technol. 1/2013 (pages 12–13)

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201290084

  8. Reviews

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Erratum
    7. Editorial
    8. Highlights
    9. Reviews
    10. Research Articles
    11. Communication
    1. Effects and New Applications of Pulsed Flow (pages 15–21)

      P. Walzel

      Article first published online: 11 DEC 2012 | DOI: 10.1002/ceat.201200566

      Thumbnail image of graphical abstract

      Pulsation of fluids within channels equipped with obstacles allows for intensifying of transverse transport and of heat and mass transfer, independent on the residence time. Special arrangements are even able to induce directional flow despite of harmonic flow drive. It can be assumed that pulsating of fluids opens new fields of still only partly examined effects.

    2. One-Dimensional Pseudo-Homogeneous Packed-Bed Reactor Modeling: I. Chemical Species Equation and Effective Diffusivity (pages 22–32)

      A. Srinivasan and C. Depcik

      Article first published online: 12 DEC 2012 | DOI: 10.1002/ceat.201200458

      Thumbnail image of graphical abstract

      A wide number of correlations exist for effective diffusivity in the modeling of packed-bed reactors in a one-dimensional pseudo-homogeneous manner. These correlations are described in detail and a model is defined that should be used prior to experimentation in order to ensure chemical kinetic results are not significantly influenced by diffusion phenomena.

  9. Research Articles

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Erratum
    7. Editorial
    8. Highlights
    9. Reviews
    10. Research Articles
    11. Communication
    1. Micronization of the Pharmaceutically Active Agent Genipin by an Antisolvent Precipitation Process (pages 33–42)

      X. Zhao, K. Song, S. Wang, Y. Zu, N. Li and X. Yu

      Article first published online: 11 DEC 2012 | DOI: 10.1002/ceat.201200036

      Thumbnail image of graphical abstract

      Micronized genipin with a mean particle size of 1.8 μm was prepared by the antisolvent precipitation process. The chemical structure of micronized genipin remained unchanged, but the crystallinity was reduced. The dissolution rate and solubility of the micronized genipin were 2.08 and 1.64 times that of the raw drug, and the amounts of residual n-hexane and ethanol were lower than the International Conference on Harmonization limit for solvents.

    2. Numerical and Experimental Study of Catalyst Loading and Body Effects on a Gas-Liquid Trickle-Flow Bed (pages 43–52)

      M. Salimi, S. H. Hashemabadi, S. Noroozi, A. Heidari and M. Bazmi

      Article first published online: 12 DEC 2012 | DOI: 10.1002/ceat.201200339

      Thumbnail image of graphical abstract

      Hydrodynamics of a gas-liquid flow through trickle beds and the influence of tortuosity and fluid volume fractions on trickle-flow bed performance were investigated experimentally and numerically. The effects of catalyst loading methods, liquid and gas flow rates on pressure drop and liquid holdup through a trickle-bed reactor with sharp corners are discussed.

    3. A Pilot-Scale System for Carbon Molecular Sieve Hollow Fiber Membrane Manufacturing (pages 53–61)

      O. Karvan, J. R. Johnson, P. J. Williams and W. J. Koros

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201200503

      Thumbnail image of graphical abstract

      A method for pilot-scale production of carbon molecular sieve hollow fiber membranes is presented which was proved to reproducibly generate high product yields. These materials have been receiving significant attention as robust alternatives to traditional polymeric membrane materials and as a cost-effective surrogate for inorganic sieving membranes.

    4. Optimization of Fischer-Tropsch Process in a Fixed-Bed Reactor Using Non-uniform Catalysts (pages 62–72)

      S. K. Mazidi, M. T. Sadeghi and M. A. Marvast

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201200268

      Thumbnail image of graphical abstract

      Performance of various non-uniform catalysts are investigated with the aim of maximizing the C5+ yield of the Fischer-Tropsch process. The effects of the active com-ponent distribution along the bed as well as the feed and cooling temperature are studied.

    5. Gas-Phase Hydrogenolysis of Glycerol Catalyzed by Cu/MOx Catalysts (pages 73–82)

      Y. Feng, H. Yin, L. Shen, A. Wang, Y. Shen and T. Jiang

      Article first published online: 12 DEC 2012 | DOI: 10.1002/ceat.201200263

      Thumbnail image of graphical abstract

      In gas-phase hydrogenolysis of glycerol, Cu/Al2O3 catalysts with high acid strength of weak and strong acid sites and small-sized metallic copper favored the formation of propanediols, ethylene glycol and monohydric alcohols. Cu/TiO2 and Cu/ZnO catalysts with low acid strength of weak acid sites and large-sized metallic copper favored the rapid dehydration of glycerol to hydroxyacetone.

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      Game Changers of the C3 Value Chain: Gas, Coal, and Biotechnologies (pages 83–90)

      J. Ding and W. Hua

      Article first published online: 12 DEC 2012 | DOI: 10.1002/ceat.201200297

      Thumbnail image of graphical abstract

      The traditional C3 chain is profoundly changed by diverse factors like the increasing on-purpose propylene production technologies and biotechnological processes. Alternative processes for the production of propylene and its derivatives have been aggressively pursued. The status of the game-changing technologies related to the C3 value chain and the relevant factors and implications are discussed.

    7. Spirulina platensis Culture with Flue Gas Feeding as a Cyanobacteria-Based Carbon Sequestration Option (pages 91–97)

      S. Arata, C. Strazza, A. Lodi and A. Del Borghi

      Article first published online: 12 DEC 2012 | DOI: 10.1002/ceat.201100722

      Thumbnail image of graphical abstract

      The conversion of carbon dioxide to microalgal biomass was investigated as a feasible option for carbon capture and storage. The new approach consists in the application of an air-lift reactor to flue gas treatment using a Spirulina platensis culture for the absorption of carbon dioxide, with the simultaneous abatement of nitrogen oxides.

    8. Performance of a New Geometry of Deoiling Hydrocyclones: Experiments and Numerical Simulations (pages 98–108)

      M. R. M. Nascimento, I. C. Bicalho, J. L. Mognon, C. H. Ataíde and C. R. Duarte

      Article first published online: 11 DEC 2012 | DOI: 10.1002/ceat.201200258

      Thumbnail image of graphical abstract

      The performance of a new class of liquid-liquid hydrocyclones designed for the separation of dilute aqueous emulsions of oil is presented. The influence of different parameters was studied experimentally and numeri-cal simulations were carried out by CFD techniques. The improvement of this separation technology can contribute to the reduction of environmental impact in the discharge of the produced water.

    9. Estimation of Mixing Ratio for Saturated Air over Water (pages 109–114)

      A. Bahadori, S. Zendehboudi and G. Zahedi

      Article first published online: 11 DEC 2012 | DOI: 10.1002/ceat.201200211

      Thumbnail image of graphical abstract

      A simple correlation is developed to estimate the mixing ratio for saturated air over water as a function of pressure and temperature using an Arrhenius-type asymptotic exponential function. To show the simplicity of the model and the usefulness of the novel predictive tool, the formulation is discussed in a systematic manner.

    10. Hydrodynamics Characterization of an Ellipse Gate Impeller by Experimental and Numerical Studies (pages 115–122)

      M.-H. Xie, J.-Y. Xia, G.-Z. Zhou, S.-L. Zhang and P.-Q. Yu

      Article first published online: 11 DEC 2012 | DOI: 10.1002/ceat.201200318

      Thumbnail image of graphical abstract

      An ellipse gate impeller was designed for fermentation processes with varying fluid viscosities in order to cover turbulent to transient or even laminar flow regimes in a reactor. Hydrodynamics characteristics were investigated by experimental and numerical methods, indicating excellent mixing properties of this impeller in a wide range of Reynolds numbers.

    11. Decolorization of Methyl Orange Dye at IrO2-SnO2-Sb2O5 Coated Titanium Anodes (pages 123–129)

      R. Chaiyont, C. Badoe, C. Ponce de León, J. L. Nava, F. J. Recio, I. Sirés, P. Herrasti and F. C. Walsh

      Article first published online: 12 DEC 2012 | DOI: 10.1002/ceat.201200231

      Thumbnail image of graphical abstract

      Degradation of toxic dyes in colored wastewaters poses a major problem in the textile industry. In this study electrochemical incineration of such dyes is investigated, using Pt electrodes coated with a mixed metal oxide film of IrO2-SnO2-Sb2O5. The films were prepared using the Pechini method and used in an electrochemical flow cell reactor to oxidize organic material under different conditions in order to evaluate their application.

    12. Biomimetic Synthesis of a Water-Soluble Conducting Polymer of 3,4-Ethylene-dioxythiophene (pages 130–136)

      M. R. Nabid, M. Shamsianpour, R. Sedghi, A. B. Moghaddam, S. Asadi, S. Osati and N. Safari

      Article first published online: 12 DEC 2012 | DOI: 10.1002/ceat.201200427

      Thumbnail image of graphical abstract

      An innovative catalytic method for the synthesis of a water-soluble poly(3,4-ethylenedioxithio-phene) in the presence of poly(styrene sulfonate) with FeIIITSPP, CoIIITSPP, MnIIITSPP, and CuIITSPP as effective catalysts is described. This one-step approach is particularly attractive in that it is simple and requires minimal separation and purification.

    13. Multiphase reacting flow studies of bubble column ozonation reactor for water remediation (pages 137–146)

      M. Perdigoto, F. Larachi and R. Lopes

      Article first published online: 11 DEC 2012 | DOI: 10.1002/ceat.201200348

      Thumbnail image of graphical abstract

      Ozonation bubbly flow was investigated through volume-of-fluid (VOF) simulations and electrical capacitance tomography (ECT) data. The VOF framework accurately predicted the effect of several physicochemical variables. Gas-liquid velocity distribu-tions were positively correlated with pollutant removal efficiencies. The interstitial flow maps identified by ECT and computed by the VOF model gave rise to unsteady flow patterns.

    14. Removal of Cr(VI) from Model Solutions by a Combined Electrocoagulation Sorption Process (pages 147–155)

      Y. Ait Ouaissa, M. Chabani, A. Amrane and A. Bensmaili

      Article first published online: 12 DEC 2012 | DOI: 10.1002/ceat.201200375

      Thumbnail image of graphical abstract

      The feasibility of hexavalent chromium elimination from synthetic effluents using red onion skin as adsorbent via a combined synergistic electrocoagulation sorption process is examined. The effects of the operating conditions to perform the adsorption process, the electrocoagulation process, and finally the hybrid process were evaluated and compared.

    15. Influence of the Lime Slurry Droplet Spectrum on the Efficiency of Semi-Dry Flue Gas Desulfurization (pages 156–166)

      J. Katolicky and M. Jicha

      Article first published online: 12 DEC 2012 | DOI: 10.1002/ceat.201100690

      Thumbnail image of graphical abstract

      A simplified computational model is presented for the semi-dry desulfurization process based on the Euler-Lagrange particle tracking method. The model simulates spraying of the lime slurry into the absorber with a twin-fluid nozzle and solves for the heat and mass transfer between the flue gases and the slurry droplets and a basic chemical reaction. The resulting desulfurization efficiency is compared with data from the literature.

    16. Statistical Analysis of Contributors to Chemical Process Accidents (pages 167–176)

      K. Kidam and M. Hurme

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201200325

      Thumbnail image of graphical abstract

      Accident contributors in the chemical process industry were studied based on the Failure Knowledge Database. The accident contributors were ranked in accordance with their frequency and importance in accident prevention. An interconnection matrix to study the relationships between the contributors revealed three functional groups of accident contributors.

    17. 3D Modeling and Simulation of Mass Transfer in Vapor Transport through Porous Membranes (pages 177–185)

      S. Shirazian and S. N. Ashrafizadeh

      Article first published online: 11 DEC 2012 | DOI: 10.1002/ceat.201200299

      Thumbnail image of graphical abstract

      A 3D computational fluid dynamics simulation is carried out to predict the dehydration of aqueous solutions by means of a membrane evaporation process. A combined finite element and UFPACK method is applied for simulations. The results indicate good agreement between experimental and simulation results. The proposed model proved to be suitable for predicting the performance of a membrane evaporator.

  10. Communication

    1. Top of page
    2. Cover Picture
    3. Editorial Board
    4. Overview
    5. Contents
    6. Erratum
    7. Editorial
    8. Highlights
    9. Reviews
    10. Research Articles
    11. Communication
    1. Conceptual Design of Double-Feed Reactive Distillation Columns (pages 186–191)

      A. Avami

      Article first published online: 21 DEC 2012 | DOI: 10.1002/ceat.201200382

      Thumbnail image of graphical abstract

      Using the results from the nonlinear analysis of pinch maps and the feed angle method as an efficient shortcut approach, a systematic procedure is proposed for the concep-tual design of double-feed reactive distillation columns. The feasibility and the practicable range of operating parameters are assessed and discussed. The method is automated and computa-tionally efficient.

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