ADSORPTIVE DESULFURIZATION OF MODEL FUELS WITH LOW-COST ADSORBENT IN DYNAMIC CONDITIONS
DOI:
https://doi.org/10.59957/jctm.v60.i6.2025.18Keywords:
desulfurization, dynamic adsorption, pyrolyzed rice husks, model fuelsAbstract
The adsorption capacity of pyrolyzed rice husks was investigated with respect to individual model solutions of benzothiophene (BT) and dibenzothiophene (DBT), and a model mixture containing benzothiophene, dibenzothiophene and 4,6,-dimethyldibenzothiophene (4,6 –DMDBT). The adsorption process was carried out under dynamic conditions. The influence of temperature and initial concentration of sulfur compounds in individual model fuels was investigated. The highest adsorption capacity was achieved at 60°C and the highest initial sulfur concentration in the model fuels. Carrying out the adsorption at higher temperatures leads to an increase in the degree of desulfurization, which means that the adsorption process is not only physical in nature. The adsorption selectivity of the pyrolyzed rice husk from mixture model fuel decreases in the order DBT > 4, 6–DMDBT > BT.
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