Use of Ni-containing catalysts for synthetic olive mill wastewater steam reforming

• Type: Article in International Scientific Journal
• Date: 2022

Authors

Cláudio Rocha (Author) FEUP; M. A. Soria (Author) FEUP; Luís Madeira (Author) FEUP

Journal

Title: Renewable Energy

Vol. 185

Pages: 1329-1342

ISSN: 0960-1481

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 0 Citations

Associated Projects

LEPABE - Financiamento Plurianual 2020-2023 da Unidade de I&D LEPABE - Laboratório de Engenharia de Processos, Ambiente, Biotecnologia e Energia

HyGreen&LowEmissions - HyGreen&LowEmissions - Tackling Climate Change Impacts: the role of Green Hydrogen production, storage and use, together with low emissions energy systems

VERPRAZ - Valorização Energética e tratamento de Resíduos da Produção do azeite

Other information

Authenticus ID: P-00W-09X

DOI: 10.1016/j.renene.2021.12.052

Abstract (EN): The olive oil mill wastewater (OMW) is a by-product (with a high organic load) derived from the production of the olive oil. The OMW steam reforming (OMWSR) process was studied herein, aiming to decrease the environmental damage of such effluents; simultaneously, the waste is economically and energetically valorized with the H-2 production. Several Ni-containing catalysts were prepared and tested to compare their performances for the OMWSR using a synthetic OMW effluent; still, stability tests were also carried out. The materials were extensively characterized: thermogravimetric analysis, temperature programmed oxidation/reduction, temperature-programmed desorption of CO2/NH3, chemisorption of H-2, inductively coupled plasma optical emission spectrometry and physical adsorption-desorption of N-2 at-196 & DEG;C. Amongst the materials tested, the Ni-Ru/SiO2 sample stood out, exhibiting high catalytic performance: at 400 & DEG;C, the H-2 yield (> 8 mol(H2)& BULL;mol(OMW)(-1)) and conversion of total organic carbon (asymptotic to 75%) were high during all the 24 h of the long-term test, with only a small deactivation being noticed.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 14