Mitigating Corrosion in Activated Carbon Purified Biogas: A Case Study of Copper and Aluminum Metals

Author:

Kouakou Adjoumani Rodrigue1ORCID,Kouadio Marc Cyril2ORCID,Kouakou Victorien3ORCID,Konan Gbangbo Remi4ORCID,Ehouman Ahissan Donatien1ORCID,Diarrassouba Aïcha Samira5,Niamien Paulin Marius6ORCID,Yao Benjamin6ORCID

Affiliation:

1. 1Laboratoire de Thermodynamique et de Physico-Chimie du Milieu (LTPCM), UFR Sciences Fondamentales Appliquées, Université Nangui Abrogoua, B.P. 801 Abidjan 02, Côte d’Ivoire.

2. 2Institut de Recherche sur les Energies Nouvelles, Université Nangui Abrogoua, B.P. 801 Abidjan 02, Côte d’Ivoire.

3. 3Université Alassane Ouattara (UAO) ; BP V18 Bouaké, Côte d’Ivoire.

4. 4Laboratoire d’Hydraulique et de Traitement des eaux, Institut National Polytechnique Félix Houphouët-Boigny (INP-HB) ; BP 1093 Yamoussoukro, Côte d’Ivoire.

5. 5Laboratoire de Réaction et Constitution de la Matière, Université Félix Houphouët Boigny, 22 BP 582 Abidjan 22, Côte d’Ivoire.

6. 6Centre d'Excellence Africain pour la Valorisation des déchets en produits à haute valeur ajoutée (CEA-VALOPRO), Institut National Polytechnique Félix Houphouët-Boigny (INP-HB); BP 1093 Yamoussoukro, Côte d’Ivoire.

Abstract

The objective of this study is to investigate the potential reduction in corrosion of aluminum and copper metals when exposed to biogas purified by activated carbon derived from cashew branches. Both aluminum and copper metals were subjected to raw and purified biogas, and their corrosion rates were analyzed using the gravimetric method. The results revealed that the corrosion rate of both metals increased over time when exposed to unfiltered biogas. However, a notable reduction in corrosion rate was observed when the metals were exposed to biogas filtered with activated carbon. This suggests that activated carbon derived from cashew branches could effectively mitigate the corrosive effects of hydrogen sulfide in biogas. Additionally, the study found that aluminum exhibited greater resistance to corrosion compared to copper when exposed to filtered biogas. This research on green inhibitors introduces novel approaches, particularly in utilizing activated carbon from cashew branches for biogas purification, offering a promising strategy to mitigate its corrosive nature. Furthermore, the evaluation of this filtration method's efficacy in protecting aluminum and copper metals underscores its potential significance in corrosion prevention within biogas systems.

Publisher

Oriental Scientific Publishing Company

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