American Journal of Chemical Engineering

Archive

Volume 10, Issue 2, March 2022

  • Coulometric and Chronoamperometric Studies on Bisulfite Reduction at a Surfactant/Myoglobin Film on Glassy Carbon Electrode

    Abdelatty Mohamed Radalla

    Issue: Volume 10, Issue 2, March 2022
    Pages: 18-22
    Received: 16 November 2021
    Accepted: 3 December 2021
    Published: 23 March 2022
    DOI: 10.11648/j.ajche.20221002.11
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    Abstract: Background. The redox-active protein, myoglobin (Mb), exchanges electrons very slowly with bare electrodes. Just like on a highly oriented pyrolytic graphite (HOPG) bare electrode, electron transfer between myoglobin (Mb) and a bare glassy carbon (GC) electrode was not observed. The myoglobin (Mb) in di-dodecyl dimethyl ammonium bromide (DDAB) film... Show More
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  • Complexation Equilibria and Determination of Stability Constants of Some Divalent Metal Ion Complexes of L-Cysteine and Diphenylamine in Aqueous Media

    Abdelatty Mohamed Radalla

    Issue: Volume 10, Issue 2, March 2022
    Pages: 23-31
    Received: 17 November 2021
    Accepted: 2 December 2021
    Published: 29 March 2022
    DOI: 10.11648/j.ajche.20221002.12
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    Abstract: Background. Metal complexes of biologically active ligands had considerable interests. L-cysteinate residue, L-Cys, is a biologically abundant and important versatile binding site of proteins. Diphenylamine, DPA, is an important aromatic amine containing two phenyl groups. Complexation equilibria of the divalent metal ions, Ca2+ and Zn2+ with the b... Show More
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  • Regeneration and Reclamation of Mono-Ethylene Glycol (MEG) Used as a Hydrate Inhibitor: A Review

    Edith Anwunli Odeigah, Thunyaluk Pojtanabuntoeng

    Issue: Volume 10, Issue 2, March 2022
    Pages: 32-45
    Received: 13 March 2022
    Accepted: 31 March 2022
    Published: 14 April 2022
    DOI: 10.11648/j.ajche.20221002.13
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    Abstract: The use of Mono-Ethylene Glycol (MEG) as a hydrate inhibitor in wet gas pipelines is increasingly becoming widespread, especially in deep-water long-tie back pipelines where the use of low dosage hydrate inhibitor (LDHI) is not practical. MEG is a commonly used thermodynamic hydrate inhibitor (THI), and it prevents hydrate formation by lowering hyd... Show More
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