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Palavras-chave
acidos graxo alkylation benzyl alcohol alquilacao biodiesel production esterificacao acido biodiesel catalisadores friedel crafts enxofre elementar para producao catalisada catalyst oxidation dimetil eter gasolina producao biodiesel production estanha sulfatada acid estudo catalyzed zeolite niobium phosphate oleo tolueno niobio zeolita dimethyl ether