Browsing by Author "Sultan, Abdullah"
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Molecular and electronic structure elucidation of Fe2+/Fe3+ complexed chelators used in iron sulphide scale removal in oil and gas wells
Onawole, Abdulmujeeb T.; Hussein, Ibnelwaleed A.; Sultan, Abdullah; Abdel-Azeim, Safwat; Mahmoud, Mohamed; Saad, Mohammed A.... more authors ... less authors ( Wiley-Liss Inc. , 2019 , Article)Quantum chemical calculations based on DFT are employed to study the electronic structure and binding affinity of chelators used in the removal of iron sulphide scales. Three chelating agents, EDTA, HEDTA, and DTPA, are ... -
Upgrading Calcium Bentonite to Sodium Bentonite Using Seawater and Soda Ash
Mahmoud, Mohamed; Mohamed, Abdelmjeed; Kamal, Muhammad Shahzad; Sultan, Abdullah; Hussein, Ibnelwaleed ( American Chemical Society , 2019 , Article)In this paper, a new method is introduced to produce sodium bentonite by treating calcium bentonite using seawater to eliminate the use of freshwater and reduces the amount of soda ash required for the treatment, which ...