On the Removal and Desorption of Sulfur Compounds from Model Fuels with Modified Clays
Abstract
:1. Introduction
2. Experiments
2.1. Conditioning of the Adsorbents
2.2. Synthetic Fuels and Solutions
2.3. Adsorption Experiments
2.3.1. Best Modified Clay
2.3.2. Adsorption Isotherms and Effect of Adsorbent Dosage
2.4. Desorption Experiments
2.5. Data Analysis
2.6. Physical and Chemical Characterization of the Adsorbents
3. Results
3.1. Best Modified Clay
3.2. Effect of Adsorbent Dosage
3.3. Effect of the Concentration of Pollutant—Adsorption Isotherms
3.4. Desorption Experiments
3.5. Physical and Chemical Characterization of the Adsorbents
4. Discussion
4.1. Best Modified Clay
4.2. Effect of Adsorbent Dosage
4.3. Adsorption Isotherms
4.4. Desorption Experiments
4.5. Insights into the Adsorption Mechanism
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Isotherm Model and Parameters | Gasoline | Diesel | ||
---|---|---|---|---|
DBT | BT | DBT | BT | |
Langmuir Model | ||||
qmax (mg/g) | 4.74 | 11.311 | 9.404 | 31.32 |
b (L/mg) | 0.103 | 0.245 | 1.407 | 0.015 |
R2 | 0.979 | 0.999 | 0.998 | 0.964 |
Freundlich Model | ||||
kF (L/g) | 2.222 | 3.242 | 4.928 | 0.631 |
n | 7.465 | 4.041 | 7.562 | 1.286 |
R2 | 0.966 | 0.979 | 0.954 | 0.982 |
D-R Model | ||||
qmax (mg/g) | 4.582 | 10.867 | 9.317 | 34.834 |
K | 2.18 × 10−5 | 1.07 × 10−6 | 1.56 × 10−7 | 5.08 × 10−4 |
E (J/mole) | 151.41 | 684.02 | 1789.68 | 31.362 |
R2 | 0.999 | 0.999 | 0.998 | 0.955 |
Temkin Model | ||||
at | 44.9 | 4.237 | 220.145 | 0.072 |
bt | 4857.62 | 1433.57 | 2715.39 | 195.736 |
R2 | 0.955 | 0.985 | 0.936 | 0.891 |
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Ha, J.W.; Japhe, T.; Demeke, T.; Moreno, B.; Navarro, A.E. On the Removal and Desorption of Sulfur Compounds from Model Fuels with Modified Clays. Clean Technol. 2019, 1, 58-69. https://doi.org/10.3390/cleantechnol1010005
Ha JW, Japhe T, Demeke T, Moreno B, Navarro AE. On the Removal and Desorption of Sulfur Compounds from Model Fuels with Modified Clays. Clean Technologies. 2019; 1(1):58-69. https://doi.org/10.3390/cleantechnol1010005
Chicago/Turabian StyleHa, Jeong W., Tenzing Japhe, Tesfamichael Demeke, Bertin Moreno, and Abel E. Navarro. 2019. "On the Removal and Desorption of Sulfur Compounds from Model Fuels with Modified Clays" Clean Technologies 1, no. 1: 58-69. https://doi.org/10.3390/cleantechnol1010005