American Journal of Chemical Engineering

Volume 4, Issue 5, September 2016

  • Effect of Surface Active Pollutants on the Rate of Mass Transfer Controlled Corrosion of Reactors Used in Wastewater Treatment

    Eman Radi Sadik, Taghreed Zewail, Abd El-Aziz Konsowa, Mona Abd El-Latif, Gomma Sedahmed

    Issue: Volume 4, Issue 5, September 2016
    Pages: 92-97
    Received: 22 July 2016
    Accepted: 2 August 2016
    Published: 9 September 2016
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    Abstract: The diffusion controlled corrosion of a cooling system composed of an array of vertical tubes attached to the inner wall of a fixed bed reactor containing plastic Raschig rings was studied by a rapid technique which involves the diffusion controlled dissolution of copper in acidified dichromate. Variables studied were solution velocity, Raschig rin... Show More
  • Kinetics and Mechanism of Permanganate Oxidation of Inositol in Perchloric and Sulfuric Acids Solutions

    Ahmed Fawzy, Ishaq A. Zaafarany, Hatem M. Altass, Moataz H. Morad, Jabir Alfahemi

    Issue: Volume 4, Issue 5, September 2016
    Pages: 98-104
    Received: 29 August 2016
    Accepted: 5 September 2016
    Published: 24 September 2016
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    Abstract: The kinetics of oxidation of inositol (INOS) by permanganate ion in both perchloric and sulfuric acids solutions was studied using a spectrophotometric technique at a constant ionic strength of 1.0 mol dm-3 and at 25°C. In both acids, the reactions showed a first order dependence with respect to [permanganate], whereas the orders with respect to [I... Show More
  • Kinetic Modeling of Multiple Adsorption of Heavy Metal Ions Using Activated Carbon from Nigerian Bamboo for Design of Adsorbers

    Ademiluyi Falilat Taiwo

    Issue: Volume 4, Issue 5, September 2016
    Pages: 105-113
    Received: 30 August 2016
    Accepted: 10 September 2016
    Published: 11 October 2016
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    Abstract: In this study, the kinetics modeling for design of adsorbers for multiple adsorption of heavy metal ions was carried out using activated carbon from waste Nigerian bamboo. The bamboo was cut into sizes, washed, dried and was carbonized at 350°C-500°C. It was then activated at 800°C using nitric acid. Simultaneous batch adsorption of different heavy... Show More
  • Deciphering Electron Shuttles for Bioremediation and Beyond

    Bor-Yann Chen, Chung-Chuan Hsueh

    Issue: Volume 4, Issue 5, September 2016
    Pages: 114-121
    Received: 16 October 2016
    Published: 17 October 2016
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    Abstract: Electron shuttles (or redox mediators) are organic chemical(s) that can be reversibly oxidized and reduced to drive electron transport phenomena for energy extraction to support myriads of lives. Efficient energy recycling would provide economically-feasible route(s) to environmental remediation and cost-effective energy shuttling could optimize ac... Show More
  • High-Precision Repetitive Motion Control in Permanent Magnet Synchronous Motor Using a Periodic Adaptive Extended State Observer

    Zhi Ren, Wenjun Qiao, Yang Liu, Xiaohong Zhang, Songtao Li, Min Huang, Yingdi Bao, Gang Fang

    Issue: Volume 4, Issue 5, September 2016
    Pages: 122-130
    Received: 20 October 2016
    Published: 20 October 2016
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    Abstract: This paper focuses on estimating and compensating the lumped disturbances in the repetitive motion control system of permanent magnet synchronous motor. A Periodic Adaptive Extended State Observer (PAESO) consisting of a normal Extended State Observer (ESO) and a refined ESO is proposed. The normal ESO is designed to capture the approximate range o... Show More
  • Process Safety Knowledge Management in the Chemical Process Industry

    Mingliang Chen

    Issue: Volume 4, Issue 5, September 2016
    Pages: 131-138
    Received: 19 October 2016
    Published: 20 October 2016
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    Abstract: Chemical process industry is a high risk industry which can result in catastrophic casualties, loss of properties, and environment damage. Process safety should always come first in the chemical process industry. Researchers have made great efforts to make the chemical process industry safer for people and the environment. Effective process safety ... Show More