Catalytic cracking of bio-oils improved by the formation of mesopores by means of Y zeolite desilication
- García, Juan Rafael
- Bertero, Melisa Paola
- Falco, Marisa Guadalupe
- Sedran, Ulises Anselmo
DOIAbstract
Y zeolite was desilicated by means of alkaline treatments (NaOH 0.05, 0.10 and 0.20 M) during 15 min to produce varying mesoporosity over it. Catalysts were made with a SiO2 matrix and a binder. Pine sawdust bio-oil was produced by pyrolysis and immediately upgraded on a bed of the compound catalysts. The experiments were produced in a fixed bed reactor at 550 ºC using different catalyst to reactants relationships. The desilicated zeolites were more effective than the parent zeolite to deoxygenate bio-oil and produce more hydrocarbons, with higher selectivity to olefins (more than 35 %wt.) and lower selectivity to aromatics (less than 60 %wt.) in gasoline. The selectivity to C4- and gasoline olefins increased if the mesoporosity was higher,...
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