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The thermal and catalytic pyrolysis of tyres in a high heating rate commercial microreactor has been studied by following two reaction strategies: in situ catalytic and thermal pyrolysis followed by on-line catalytic pyrolysis. The catalysts have been prepared based on HZSM-5, HY and HBeta zeolites and they have been used in situ in the pyrolysis reactor and on-line, in a fixed bed reactor. The use of the catalyst in situ decreases the pyrolysis temperature by 50 K (from 773K to 723 K) and significantly increases the yield of gas and C10- light aromatics. The shape selectivity of HZSM-5 zeolite and the higher micropore size and hydrogen transfer capacity of HY zeolite significantly affect product distribution. The HBeta zeolite catalyst has an intermediate behaviour. The yields of gases, C10aromatics and tar increase in the catalytic reforming of thermal pyrolysis.

Efecto del uso de Catalizadores Ácidos Sobre la Distribución de Productos en la Pirólisis de Neumáticos