Upgrading syngas from wood gasification through steam reforming of tars over highly active Ni-perovskite catalysts at relatively low temperature
نویسندگان
چکیده
Tar formation during biomass gasification causes several operational problems, besides limiting the downstream application of syngas produced. The development an efficient catalyst for tar reforming at mild temperature is targeted. In this study, La-based perovskite (La0.6Sr0.4Co0.2Fe0.8O3-δ)-supported Ni materials have been synthesized through wetness impregnation (Ni/LSCF) and one-pot sol-gel method (Ni-LSCF). As-prepared catalysts characterized by N2 physisorption, XRD, TPR, H2-TPD XPS. impact synthesis path effect Ru evaluated in steam toluene phenol low (550 °C) under a model syngas. Regardless molecule, similar catalytic stability activity toward were attained both Ni/LSCF Ni-LSCF. However, better performance WGS higher resistance to coke evidenced Ni-LSCF than Ni/LSCF. This behavior has mainly ascribed high Sr content its surface, pointing out key role basic elements surface tars. addition led enhancement reforming, while no noticeable improvement was reforming.
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ژورنال
عنوان ژورنال: Applied Catalysis B-environmental
سال: 2021
ISSN: ['1873-3883', '0926-3373']
DOI: https://doi.org/10.1016/j.apcatb.2021.120687