Startseite Preparation of activated carbon from waste tea and its performance in adsorptive desulfurization of model fuel
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Preparation of activated carbon from waste tea and its performance in adsorptive desulfurization of model fuel

  • Samira Naseri , Gholamreza Moradi ORCID logo EMAIL logo und Tanaz Ghanadi
Veröffentlicht/Copyright: 31. März 2025
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Abstract

Highly efficient activated carbon (AC) derived from tea residue was used to produce clean fuel through adsorptive desulfurization. It was synthesized by heating in an inert atmosphere and chemical activation using K2CO3. The characteristics of the sorbent were determined with various techniques that clarified the porous morphology and large surface area (1,254.4 m2/g) with suitable properties. The performance of constructed AC in removing of dibenzothiophene (DBT) from n-Hexane was examined under mild operating conditions of ambient temperature and contact time of 15 min, which possessed a high efficiency of 96.1 %. The Langmuir and Freundlich isotherms were applied to study the sulfur compounds’ equilibrium adsorption. Based upon the results, it can be effectively expressed by Langmuir isotherm. Two types of kinetic models were evaluated, and it was revealed that adsorption by using modified AC obeys a pseudo-second-order pattern. This research aimed to provide a cost-effective adsorbent with excellent activity for desulfurization on a large scale.


Corresponding author: Gholamreza Moradi, Faculty of Chemical and Petroleum Engineering, Catalyst Research Center, Razi University, Kermanshah, Iran, E-mail:

Acknowledgments

The authors gratefully acknowledge Razi University for the financial support of the research and the provision of laboratory equipment.

  1. Research ethics: Not applicable.

  2. Informed consent: Not applicable.

  3. Author contributions: All authors have accepted responsibility for the entire content of this manuscript and approved its submission.

  4. Use of Large Language Models, AI and Machine Learning Tools: None declared.

  5. Conflict of interest: The authors declare no conflict of interest.

  6. Research funding: None declared.

  7. Data availability: Not applicable.

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Received: 2024-11-29
Accepted: 2025-03-04
Published Online: 2025-03-31

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