EFFECT OF PT LOADING OVER HYDROGEN PRODUCTION FROM XYLITOL AND SORBITOL VIA AQUEOUS PHASE REFORMING

MARÍA EUGENIA SAD; HERNÁN DUARTE; CARLOS RODOLFO APESTEGUÍA

La Rochelle

Simposio; ISGC 2015 (International Symposium of Green Chemistry); 2015

APR reaction was proposed as catalytic approach to produce H2 from biomass-derived oxygenates [1]. The catalyst used must promote the cleavage of C-C, O-H, and C-H bonds (leading to H2, CO and CO2), and facilitate the WGS to remove adsorbed CO from the surface, as opposed to the cleavage of C-O bonds. Much research was focused on APR of ethylene glycol, glycerol and even sorbitol [2] over Pt catalysts and few papers deals with xylitol (C5 polyol), stemming from lignocellulosic processing industry as a product of xylose hydrogenation [3]. Even, little work has been carried out so far in optimizing the metal content when using Pt/Al2O3 catalysts [4,5]. In this work, we study the effect of Pt loading over H2 production by APR reaction from the two most abundant building blocks of natural polymers (sorbitol and xylitol).