Publicación: CATALYTIC PYROLYSIS OF USED TIRES ON NOBLE-METAL-BASED CATALYSTS TO OBTAIN HIGH-VALUE CHEMICALS: REACTION PATHWAYS
Fecha
2022
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CATALYSIS TODAY
Resumen
A SYSTEMATIC STUDY ON THE USE OF NOBLE METALS (PD, PT, AU) SUPPORTED ON TITANATE NANOTUBES (NT-TI) FOR SELECTIVELY PRODUCING BTX AND P-CYMENE FROM WASTE TIRE PYROLYSIS IS PROVIDED HERE. ALL THE MATERIALS WERE CHARACTERIZED FOR CHEMICAL, TEXTURAL AND STRUCTURAL PROPERTIES USING A RANGE OF ANALYTICAL TECHNIQUES. THE M/NT-TI (M: PD, PT, OR AU) CATALYSTS EXHIBIT LOW NANOPARTICLE SIZES (1.8 SUPPORT > NON-CATALYST. THE PY-GC/MS SUGGEST THAT THE CATALYSTS PARTICIPATE IN THE SECONDARY REACTIONS OF DEALKYLATION, DEHYDROGENATION, ISOMERIZATION, AROMATIZATION, AND CYCLIZATION LEADING TO A HIGHER FORMATION OF BTX THAN THE UNCATALYZED REACTION. FINALLY, A COMPREHENSIVE REACTION PATHWAY DESCRIBING THE CATALYTIC PYROLYSIS OF WT OVER PD/NT-TI WAS PROPOSED BY STUDYING THE CATALYTIC PYROLYSIS OF INDIVIDUAL POLYMERS CONSTITUTING THE WASTE TIRES, AND D,L-LIMONENE.
