Sibunit-supported mono- and bimetallic catalysts used in aqueous-phase reforming of xylitol

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Lidia I. Godina, Alexey V. Kirilin, Anton V. Tokarev, Irina L. Simakova, Dmitry Yu. Murzin
Publiceringsår: 2018
Tidskrift: Industrial & Engineering Chemistry Research
Tidskriftsakronym: Ind. Eng. Chem. Res.
Volym: 57
Nummer: 6
Artikelns första sida, sidnummer: 2050
Artikelns sista sida, sidnummer: 2067
eISSN: 1520-5045


Abstrakt

Carbon-supported mono- and bimetallic catalysts prepared via incipient wetness impregnation were systematically studied in aqueous-phase reforming (APR) of xylitol aiming at hydrogen production from biomass. The catalytic performance of several VIII group metals and their combinations, such as Pt, Ni, Pt–Ni, Re, Pt–Re, Ru, Pt–Ru, and Pt–Co, was compared for xylitol APR in a fixed-bed reactor at 225 °C and 29.7 bar (N2). Ni/C, Ru/C, and Re/C catalysts displayed significantly lower activity compared to others. Activity and selectivity to H2 of bimetallic Pt–Ni/C, Pt–Co/C, and Pt–Ru/C catalysts were close to that of Pt/C. Pt–Re/C catalyst showed an outstanding performance which was accompanied by a shift of the reaction pathways to the alkane formation and thereby lower hydrogen selectivity. Addition of the second metal to Pt was not found to be beneficial for hydrogen production, thus leaving Pt/C as the optimum carbon-supported catalyst.


Nyckelord

Chemical Engineering

Senast uppdaterad 2019-20-11 vid 04:54