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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Syngas for Fischer-Tropsch synthesis by methane tri-reforming using nickel supported on MgAl2O4 promoted with Zr, Ce and Ce-Zr

Texto completo
Autor(es):
Paladino Lino, Ananda Vallezi [1] ; Colmenares Calderon, Yormary Nathaly [2] ; Mastelaro, Valmor Roberto [2] ; Assaf, Elisabete Moreira [3] ; Assaf, Jose Mansur [1]
Número total de Autores: 5
Afiliação do(s) autor(es):
[1] Univ Fed Sao Carlos, Dept Engn Quim, Rod Washington Luis Km 235, Sao Carlos, SP - Brazil
[2] Inst Fis Sao Carlos, Dept Fis & Ciencias Mat, Av Trabalhador Sao Carlense 400, Sao Carlos, SP - Brazil
[3] Univ Sao Paulo, Inst Quim Sao Carlos, Av Trabalhador Sao Carlense 400, Sao Carlos, SP - Brazil
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Applied Surface Science; v. 481, p. 747-760, JUL 1 2019.
Citações Web of Science: 1
Resumo

Nickel catalysts supported on magnesium aluminate promoted with ZrO2, CeZrO2 and CeO2 were evaluated under methane tri-reforming reaction. MgAl2O4 synthesis was assisted by P123 (R) surfactant, assuring high porosity. The catalysts were tested at 650 degrees C and 750 degrees C. Zr and Ce-Zr promoted catalysts showed less coke deposition and increased conversions, mainly at 750 degrees C, while the non-promoted catalyst featured lowest reactants conversion due to an unstable performance caused by filamentous coke deposition. The H-2/CO ratio produced at 750 degrees C was at around 2, suitable to FT synthesis. In situ XPD analysis suggested nickel remained active as Ni-0 throughout the reaction, even in the oxidant environment, containing water and oxygen, and high-temperature exposure. Considering that nickel oxidation during the process is one of the concerns related to the catalyst deactivation during tri-reforming of methane, along with carbon deposition, these catalysts are promising to active and stable syngas production. (AU)

Processo FAPESP: 14/25972-8 - Catalisadores à base de Ni/(CeZr)O2-MgAl2O4 e Ni/(X2O3 + ZrO2)-MgAl2O4 (x= la, SM, Y) aplicados à tri-reforma do metano visando produção de hidrogênio e gás de síntese
Beneficiário:Ananda Vallezi Paladino Lino
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 14/50279-4 - Brasil Research Centre for Gas Innovation
Beneficiário:Julio Romano Meneghini
Linha de fomento: Auxílio à Pesquisa - Programa Centros de Pesquisa em Engenharia