NiMgAlCe Catalysts Applied to Reforming of a Model Biogas for Syngas Production

Author(s)

Paladino Lino, Ananda Vallezi ^[1] ; Assaf, Elisabete Moreira ^[2] ; Assaf, Jose Mansur ^[1]

Affiliation

^[1] Univ Fed Sao Carlos, Dept Engn Quim, Lab Catalise, Rod Washington Luis, Km 235, Sao Paulo - Brazil

^[2] Univ Sao Paulo, Inst Quim Sao Carlos, Ave Trabalhador Sao Carlense 400, Sao Paulo - Brazil

• Document type: Journal article
• Source: CATALYSIS LETTERS; v. 148, n. 3, p. 979-991, MAR 2018.
• Web of Science Citations: 3

Abstract

Hydrotalcite mixed oxide catalysts promoted with CeO2 containing nickel as the active phase were employed in the reforming of a free of contaminants model biogas. Catalysts were characterized using techniques such XRD, H-2-TPR, CO2-TPD, Raman spectroscopy and TEM analyses. They showed a good performance along the 6 h of testing. Despite the drastic conditions for catalysts evaluation (low temperature and excess of CH4) that facilitate carbon deposition, the Ni 10 wt% catalyst showed a deposition rate similar to catalyst evaluated in softer conditions already reported in literature. The Ni 5 wt% spent catalyst showed the lowest carbon deposition rate among the three catalysts tested. Together with carbon filaments, the Ni 15 wt% catalyst featured the presence of encapsulating and coating carbon and they both would lead to deactivation, as attested by its oscillating activity behavior. {[}GRAPHICS] (AU)

• FAPESP's process: 14/50279-4 - Brasil Research Centre for Gas Innovation
• Grantee: Julio Romano Meneghini
• Support Opportunities: Research Grants - Research Centers in Engineering Program