Tri-Reforming of Methane over NdM0.25Ni0.75O3 (M = Cr, Fe) Catalysts and the Effect of CO2 Composition

Author(s)

de C. Roseno, K. T. ^[1] ; Antunes, R. A. ^[2] ; Alves, R. M. B. ^[1] ; Schmal, M. ^[1]

Affiliation

^[1] Univ Sao Paulo, Dept Chem Engn, Escola Politecn, Ave Prof Luciano Gualberto, 380, Tv 3, BR-05508010 Sao Paulo, SP - Brazil

^[2] Fed Univ ABC, Ctr Engn Modeling & Appl Social Sci CECS, Ave Estados 5001, BR-09210580 Santo Andre, SP - Brazil

• Document type: Journal article
• Source: CATALYSIS LETTERS; v. 151, n. 12, p. 3639-3655, DEC 2021.
• Web of Science Citations: 0

Abstract

The NdM0.25Ni0.75O3 (M = Cr, Fe) named NCN and NFN catalysts precursors were synthesized and characterized. The CO2 utilization in the feed was studied in the methane tri-reforming to produce syngas at 850 degrees C. The catalysts presented orthorhombic structure and the elements (Nd, Cr or Fe, Ni and O) on the surface showed homogeneous dispersion. XPS indicates different states of nickel, iron and chromium, respectively, Ni2+, Fe3+ and Fe2+ and Cr3+ (or Cr4+) and Cr6+ species. The Tri-Reforming of Methane (TRM) was performed for conditions 1CH(4):0.5CO(2):0.5O2 (A) and 1CH(4):1CO(2):0.25O(2) (B), both with 0.25 H2O diluted in He. The conversions of methane were 74% for the NCN and 65% for the NFN catalysts. Both catalysts showed ratios (H-2/CO) of 1.5 and 2 for conditions A and B, respectively, at 850 degrees C. {[}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