Please use this identifier to cite or link to this item: http://www.repositorio.ufc.br/handle/riufc/37900
Title in Portuguese: Nanosized Pt-containing Al2O3 as an efficient catalyst to avoid coking and sintering in steam reforming of glycerol
Author: Carvalho, Davi Coelho de
Sousa, Helvio Silvester Andrade de
Mendes Filho, Josué
Assaf, Elisabete Moreira
Thyssen, Vivian Vazquez
Campos, Adriana
Hernandez, Eduardo Padrón
Raudel, Ramon
Oliveira, Alcineia Conceição
Keywords: Engenharia química
Glicerol
Glycerol
Issue Date: 7-Nov-2014
Publisher: ROYAL SOCIETY OF CHEMISTRY
Citation: CARVALHO, D. C. et al. Nanosized Pt-containing Al2O3 as an efficient catalyst to avoid coking and sintering in steam reforming of glycerol. RSC Advances, v. 4, p. 61771–80, 2014.
Abstract: The action of nanosized Pt-containing Al2O3 catalysts to avoid coking and sintering was studied in steam reforming of glycerol. The solids exhibited almost 100% conversion toward syngas produced at a suitable water to glycerol ratio. Depending on the promoter, a drastic drop in hydrogen yield was observed due to coking and sintering effects. Spent catalyst characterizations by Raman, HRTEM, XRD, TG and SEMEDS as well as textural property techniques showed that coking, rather than sintering, was the main cause that determined the low hydrogen selectivity of nanosized Pt-containing Al2O3 with La2O3 or ZrO2. In contrast, coking did not cover the active sites of Pt-containing Al2O3 with MgO or CeO2. Thus, steam suppressed carbon deposition and improved the nanosized Pt/MgO–Al2O3 catalyst stability in the steam reforming of glycerol.
URI: http://www.repositorio.ufc.br/handle/riufc/37900
metadata.dc.type: Artigo de Periódico
Appears in Collections:DEQ - Artigos publicados em revista científica

Files in This Item:
File Description SizeFormat 
2014_art_acoliveira_nanosized.pdf3,71 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.