Abstract
It remains challenging to produce new and efficient adsorbents to remove sulfur compounds from waste tire pyrolysis oils. The present work investigated the ex-situ treatment by desulfurization and cracking of volatiles from the pyrolysis of waste tires using an innovative synthetic oil mixture. For this purpose, biochars from the pyrolysis of abundant biomasses (date seeds and spent coffee grounds) were used to improve the quality of these volatiles. Furthermore, the purification efficiency of these biochars was compared to that of commercial activated carbon. Thus, the influence of the operating conditions was studied. Finally, to provide an innovative insight into the desulfurization efficiency, the regeneration of the best performing desulfurization material was carried out. The results show promising desulfurization and cracking capacities of the spent coffee grounds biochar and excellent regeneration performance.
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