Production of Biogas and Biomethane as Renewable Energy Sources: A Review

Mignogna, Debora; Ceci, Paolo; Cafaro, Claudia; Corazzi, Giulia; Avino, Pasquale

doi:10.3390/app131810219

Cited by 28 publications

(11 citation statements)

References 153 publications

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“…Biogas and biomethane are promising forms of renewable energy derived from readily available raw materials. They generate clean and sustainable energy within the context of a circular economy [152]. Over the last two decades, research has focused on new and more efficient technologies to enhance sustainability and decrease operating costs, which are crucial for small-scale AD units.…”

Section: Discussion and Future Perspectivesmentioning

confidence: 99%

From Biogas to Biomethane: An In-Depth Review of Upgrading Technologies That Enhance Sustainability and Reduce Greenhouse Gas Emissions

Francisco López,

Lago Rodríguez,

Faraji Abdolmaleki

et al. 2024

Applied Sciences

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Renewable energies present an opportunity to enhance energy security, reduce dependence on imports, and lower greenhouse gas emissions. Natural gas, viewed as a transitional fuel from coal to renewables, lacks reliable environmental sustainability and does not contribute to EU energy independence. Recently, biomethane has been gaining attention as an alternative to natural gas. Obtained from purified or “upgraded” biogas, it offers environmental and economic advantages. Several developed technologies, including absorption, adsorption, membrane separation, and cryogenic separation, are commercially available. However, those are energy- and resource-intensive. In this context, this review aims to examine the recent advancements in biogas upgrading, particularly in physical, chemical, and biological pathways. It focuses on CO2 removal and/or conversion to methane, offering an updated overview for future studies. The technologies are classified based on the separation method (by phase addition, by solid agent, by phase creation, and by biological process), and an analysis of each category is conducted. The discussion covers the economic and environmental characteristics, process complexity, and future research prospects in sustainable technologies. This review highlights the potential of biogas upgrading technologies in contributing to sustainable development, increasing energy security, and achieving greenhouse gas reduction goals that are aligned with EU targets.

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Section: Discussion and Future Perspectivesmentioning

confidence: 99%

From Biogas to Biomethane: An In-Depth Review of Upgrading Technologies That Enhance Sustainability and Reduce Greenhouse Gas Emissions

Francisco López,

Lago Rodríguez,

Faraji Abdolmaleki

et al. 2024

Applied Sciences

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“…É usual encontrar referências bibliográficas descrevendo a composição típica do biogás apenas em (%) (Mignogna et al, 2023;Paladino, 2022;Abubakar, Silas, and Aji, 2022).…”

Section: Conclusõesunclassified

Aproveitamento de dejeto bovino para a produção de biogás

Salvador Belchior Dinis Martins,

Mesquita Bruel,

Correia Souza

et al. 2024

Lat. Am. J. Energy Res.

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No presente trabalho, como atividade experimental foi desenvolvido um protótipo de biodigestor do tipo batelada, usando um barril de cerveja descartável, de plástico PET (Polietileno tereftalato). Os dejetos foram coletados na exploração leiteira da Universidade de Évora (UÉ - Polo da Mitra/Portugal). Como parte da análise foram empregadas duas metodologias para estimar o potencial de biogás e biometano a partir de plantéis bovinos no Brasil. Pela divergência de valores na produção diária percebeu-se uma lacuna científica que poderia ser investigada em termos globais. O título de um novo trabalho poderia ser: modelo para a produção de biogás a partir de dejetos de bovinos leiteiros. A composição do biogás foi analisada por GC (cromatografia gasosa). A desvantagem é que por GC não foram analisadas as quantidades de amônia e gás sulfídrico. Detectou-se uma quantidade de 46%mol de N2 o que é extremamente alta. O nitrogênio faz parte da estrutura molecular das proteínas e pode variar de acordo com o tipo de ração, pastagem ou silagem adicionada à alimentação do animal. Contudo o aproveitamento dos dejetos animais para a produção de biogás na UÉ não é suficiente para manter a exploração autossustentável (energia elétrica, aquecimento de água e do ambiente).

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“…Furthermore, residual AD sludge (digestate), if properly managed, holds the potential to be a substitute for mineral fertilisers [5]. A series of organic waste streams may be used in AD, including livestock manure, highly polluted wastewater, and agricultural, agro-industrial, and food waste [6].…”

Section: Introductionmentioning

confidence: 99%

Biogas Production Potential of Mixed Banana and Pineapple Waste as Assessed by Long-Term Laboratory-Scale Anaerobic Digestion

Rabinovich,

Linnenberg,

Theilen

et al. 2024

Fermentation

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Biogas is a renewable energy source generated through the anaerobic digestion (AD) of organic feedstocks. This study aims to quantify the biogas production potential (BPP) of fruit wastes via semi-continuous lab-scale mesophilic AD over a total of 100 days. The feed was composed of 80% banana peelings and 20% pineapple residues, mimicking the waste composition of a Costa Rican fruit processing facility used as a test case. The average loading rate of volatile suspended solids (VSS) corresponded to 3.6 kg VSS·m−3·d−1. Biogas yield and composition were monitored, along with the concentration of ammonium, volatile fatty acids, and pH. Discounting the start-up phase, the BPP averaged to 526 LN (kg VSS)−1 with a methane concentration of around 54%, suggesting suitability of the substrate for AD. We calculated that if upscaled to the Costa Rican test case facility, these values translate into a gross average heat and electricity production via AD of around 5100 MWhel·a−1 and 5100 MWhth·a−1, respectively. Deducting self-consumption of the AD treatment, this is equivalent to 73% of the facility’s electricity demand, and could save about 450,000 L of heavy oil per year for heat generation. To circumvent nitrogen shortage, the addition of a co-substrate such as dry manure seems advisable.

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Production of Biogas and Biomethane as Renewable Energy Sources: A Review

Cited by 28 publications

References 153 publications

From Biogas to Biomethane: An In-Depth Review of Upgrading Technologies That Enhance Sustainability and Reduce Greenhouse Gas Emissions

From Biogas to Biomethane: An In-Depth Review of Upgrading Technologies That Enhance Sustainability and Reduce Greenhouse Gas Emissions

Aproveitamento de dejeto bovino para a produção de biogás

Biogas Production Potential of Mixed Banana and Pineapple Waste as Assessed by Long-Term Laboratory-Scale Anaerobic Digestion

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