Catalytic Properties and Recycling of NiFe2O4 Catalyst for Hydrogen Production by Supercritical Water Gasification of Eucalyptus Wood Chips

Ane Caroline Pereira Borges; Jude Azubuike Onwudili; Heloysa Andrade; Carine Alves; Andrew Ingram; Silvio Vieira de Melo; Ednildo Torres

LAPSE

Living Archive for Process Systems Engineering

LAPSE:2023.26181

Published Article

LAPSE:2023.26181

Catalytic Properties and Recycling of NiFe2O4 Catalyst for Hydrogen Production by Supercritical Water Gasification of Eucalyptus Wood Chips

Ane Caroline Pereira Borges, Jude Azubuike Onwudili, Heloysa Andrade, Carine Alves, Andrew Ingram, Silvio Vieira de Melo, Ednildo Torres

March 31, 2023

Nickel iron oxide (NiFe2O4) catalyst was prepared by the combustion reaction method and characterized by XRD, N2 adsorption/desorption, thermogravimetric analysis (TG), and temperature programmed reduction (TPR). The catalyst presented a mixture of oxides, including the NiFe2O4 spinel and specific surface area of 32.4 m2 g−1. The effect of NiFe2O4 catalyst on the supercritical water gasification (SCWG) of eucalyptus wood chips was studied in a batch reactor at 450 and 500 °C without catalyst and with 1.0 g and 2.0 g of catalyst and 2.0 g of biomass for 60 min. In addition, the recyclability of the catalyst under the operating conditions was also tested using recovered and recalcined catalysts over three reaction cycles. The highest amount of H2 was 25 mol% obtained at 450 °C, using 2 g of NiFe2O4 catalyst. The H2 mol% was enhanced by 45% when compared to the non-catalytic test, showing the catalytic activity of NiFe2O4 catalyst in the WGS and the steam reforming reactions. After the third reaction cycle, the results of XRD demonstrated formation of coke which caused the deactivation of the NiFe2O4 and consequently, a 13.6% reduction in H2 mol% and a 5.6% reduction in biomass conversion.

Record ID

LAPSE:2023.26181

Keywords

catalytic gasification, hydrogen production, nickel iron oxide, recycling tests, supercritical water

Subject

Energy Systems

Suggested Citation

Borges ACP, Onwudili JA, Andrade H, Alves C, Ingram A, Vieira de Melo S, Torres E. Catalytic Properties and Recycling of NiFe2O4 Catalyst for Hydrogen Production by Supercritical Water Gasification of Eucalyptus Wood Chips. (2023). LAPSE:2023.26181

Author Affiliations

Borges ACP: Centro Interdisciplinar em Energia e Ambiente (CIENAM), Campus Universitário Federação/Ondina, Universidade Federal da Bahia (UFBA), Salvador 40170-115, Brazil [ORCID]
Onwudili JA: Energy and Bioproducts Research Institute, College of Engineering and Physical Sciences, Aston University, Birmingham B4 7ET, UK [ORCID]
Andrade H: Centro Interdisciplinar em Energia e Ambiente (CIENAM), Campus Universitário Federação/Ondina, Universidade Federal da Bahia (UFBA), Salvador 40170-115, Brazil; Instituto de Química, Universidade Federal da Bahia (UFBA), Campus Universitário de Ondin [ORCID]
Alves C: Centro Interdisciplinar em Energia e Ambiente (CIENAM), Campus Universitário Federação/Ondina, Universidade Federal da Bahia (UFBA), Salvador 40170-115, Brazil; Engenharia de Energia, Universidade Federal do Recôncavo da Bahia (UFRB), Feira de Santana [ORCID]
Ingram A: School of Chemical Engineering, University of Birmingham, Birmingham B15 2TT, UK
Vieira de Melo S: Centro Interdisciplinar em Energia e Ambiente (CIENAM), Campus Universitário Federação/Ondina, Universidade Federal da Bahia (UFBA), Salvador 40170-115, Brazil; Programa de Engenharia Industrial, Escola Politécnica, Universidade Federal da Bahia, Rua [ORCID]
Torres E: Centro Interdisciplinar em Energia e Ambiente (CIENAM), Campus Universitário Federação/Ondina, Universidade Federal da Bahia (UFBA), Salvador 40170-115, Brazil; Programa de Engenharia Industrial, Escola Politécnica, Universidade Federal da Bahia, Rua

Journal Name

Energies

Volume

13

Issue

17

Article Number

E4553

Year

2020

Publication Date

2020-09-02