Effect of some pre-treatments on the adsorption of methylene blue by Balkaya lignite

Karaca, Semra; Gürses, Ahmet; Bayrak, Ramis

doi:10.1016/j.enconman.2003.09.026

Makale Tam Makale Uluslararası 2004

Effect of some pre-treatments on the adsorption of methylene blue by Balkaya lignite

Semra Karaca, Ahmet Gürses, Ramis Bayrak

ENERGY CONVERSION AND MANAGEMENT Cilt 45 · ss. 1693–1704 · 01.07.2004

DOI ile aç

Özet

In this study, the effects of some pre-treatments, such as HCl treatment, demineralization and pyrolysis, under a CO2 atmosphere at different temperatures on the adsorption of methylene blue by Balkaya lignite were investigated. The adsorption capacities of the samples were determined before and after these pre-treatments. In addition, the removals of pyritic and organic sulfur and ash contents for the same coal samples were also defined. It was found that the adsorption capacities of the samples decreased after these pre-treatments. The decrease in adsorption capacity with pyrolysis can be attributed to the changes in surface morphology and/or pore size distribution of the coal samples. On the other hand, the observed decrease in adsorption capacity with removal of carbonates and silicates shows that these minerals have an important effect on methylene blue adsorption, and the adsorption considerably occurs through electrostatic interactions. In addition, the obtained results showed that the organic sulfur presence in the coal matrix have a positive effect on the methylene blue adsorption. (C) 2003 Elsevier Ltd. All rights reserved.

Anahtar kelimeler

DEMINERALIZATION AQUEOUS-SOLUTION lignite adsorption coal PYROLYSIS HCl treatment

Sürdürülebilir Kalkınma Amaçları

SKA 12: Sorumlu Üretim ve Tüketim

Atıf için künye

Karaca, S., Gürses, A., & Bayrak, R. (2004). Effect of some pre-treatments on the adsorption of methylene blue by Balkaya lignite. ENERGY CONVERSION AND MANAGEMENT, 45, 1693–1704. https://doi.org/10.1016/j.enconman.2003.09.026

BibTeX

@article{karaca2004-69563,
  author = {Karaca, Semra and Gürses, Ahmet and Bayrak, Ramis},
  title = {Effect of some pre-treatments on the adsorption of methylene blue by Balkaya lignite},
  journal = {ENERGY CONVERSION AND MANAGEMENT},
  year = {2004},
  volume = {45},
  pages = {1693--1704},
  issn = {0196-8904},
  doi = {10.1016/j.enconman.2003.09.026},
  url = {https://akademik.atauni.edu.tr/yayinlar/69563-effect-of-some-pre-treatments-on-the-adsorption-of-methylene-blue-by-balkaya}
}