Desulfurization of Model Oil through Adsorption over Activated Charcoal and Bentonite Clay Composites,Chemical Engineering & Technology

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Desulfurization of Model Oil through Adsorption over Activated Charcoal and Bentonite Clay Composites
Chemical Engineering & Technology ( IF 1.8 ) Pub Date : 2020-02-03 , DOI: 10.1002/ceat.201900203
Sana Ullah ₁ , Sajjad Hussain _{1,

2} , Waqas Ahmad ₃ , Hammad Khan ₁ , Khurram Imran Khan ₁ , Saad Ullah Khan ₁ , Sabir Khan ₄

Affiliation

Adsorption of dibenzothiophene (DBT) from model oil was investigated using composites of pure activated charcoal and pure bentonite clay. DBT adsorption was carried out in batch mode experiments at laboratory scale, where the developed composite materials showed a synergistic effect in removal of DBT from the model oil in terms of improved surface acidity of the pure activated charcoal and mesoporous structure of the pure bentonite clay. Thermodynamics, kinetics, and optimization of various adsorption parameters were investigated. Kinetic analyses proved that DBT adsorption followed pseudo‐second‐order kinetics. To study the thermodynamics of the adsorption, different isotherm adsorption models were applied. The Langmuir isotherm best fitted to the adsorption data. Various thermodynamic parameters were evaluated, including Gibbs free energy, entropy, and enthalpy.

中文翻译：

活性炭和膨润土粘土复合材料吸附对模型油的脱硫

使用纯活性炭和纯膨润土的复合材料研究了模型油中二苯并噻吩（DBT）的吸附。DBT吸附是在实验室规模的分批模式实验中进行的，其中开发的复合材料在提高纯活性炭的表面酸性和纯膨润土的介孔结构方面显示出从模型油中去除DBT的协同作用。研究了热力学，动力学和各种吸附参数的优化。动力学分析证明，DBT吸附遵循伪二级动力学。为了研究吸附的热力学，应用了不同的等温吸附模型。Langmuir等温线最适合吸附数据。评估了各种热力学参数，包括吉布斯自由能，

更新日期：2020-02-03

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