Biogas Production and Processing from Various Organic Wastes in Anaerobic Digesters and Landfills

Heidari, Setareh; Wood, David A.; Rajan, Birendra K.; Ismail, Ahmad Fauzi

doi:10.1002/9781119789444.ch9

Cited by 4 publications

(1 citation statement)

References 46 publications

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“…One renewable energy source that has gained popularity is the production of biogas. This gas mixture is obtained from the anaerobic digestion of organic matter from agricultural waste, − septic tanks, , industrial wastewater, , and municipal organic residues. − Biogas composition varies for different substrates; its main components are methane (CH 4 ) and carbon dioxide (CO 2 ), with contents in the ranges of 44–68% and 24–40%, respectively. Biogas also presents minor impurities (concentration <1%) such as oxygen (O 2 ), nitrogen (N 2 ), benzene (C 6 H 6 ), toluene (C 7 H 8 ), hydrogen sulfide (H 2 S), and siloxanes (R 2 SiO, R = organic radical) .…”

Section: Introductionmentioning

confidence: 99%

Surface-Modified Activated Carbon with a Superior CH₄/CO₂ Adsorption Selectivity for the Biogas Upgrading Process

Peredo-Mancilla

Ghimbeu

Réty

et al. 2022

Ind. Eng. Chem. Res.

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The conversion of biogas to biomethane is an interesting alternative for clean energy production. Although biogas separation by physical adsorption using activated carbons has many advantages, the selectivity for CH 4 /CO 2 adsorption is fairly low. In this work, the surface chemistry of a commercial activated carbon (CNR-115) was modified by a two-step process: oxidative thermal treatment followed by ammonia modification. The activated carbons resulting from each modification step (CNR-115 ox and CNR-115 am , respectively) were characterized texturally and chemically, and their CH 4 /CO 2 equimolar mixture adsorption behaviors were measured. The results showed a significant loss of both surface area and porosity after the modification steps. However, the increased amount of polar surface functionalities leads to a remarkable increase of the selectivity factor (max. selectivity: 2.7 for CNR-115 < 23.4 for CNR-115 ox < 129.0 for CNR-115 am ). The reasons behind the significantly enhanced selectivity are discussed on the basis of the surface chemistries and textural properties of the materials, in relation with molecule characteristics. We demonstrate herein a very efficient surface modification strategy, which allowed to obtain activated carbon adsorbents with oxygen and nitrogen groups that favor a superior CH 4 /CO 2 separation capacity. Furthermore, the stability of the added surface groups and the adsorption behavior was tested, proving the maintenance of the chemical characteristics and the adsorption performance after 10 adsorption/ desorption cycles.

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Section: Introductionmentioning

confidence: 99%

Surface-Modified Activated Carbon with a Superior CH₄/CO₂ Adsorption Selectivity for the Biogas Upgrading Process

Peredo-Mancilla

Ghimbeu

Réty

et al. 2022

Ind. Eng. Chem. Res.

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Techniques for treating leachate discharges: A critical review

Bouaouda

Souabi

Bouyakhsass

et al. 2023

Euro-Mediterr J Environ Integr

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Fueling the future: biomass applications for green and sustainable energy

Ali,

Dawood,

Hussain

et al. 2024

Discov Sustain

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Biomass has become a key contender in the race to find sustainable energy options, as we move toward a more environmentally friendly future. This extensive assessment explores the potential of biomass to transform the global energy landscape. We have examined different conversion technologies, including thermal technologies such as combustion and gasification, as well as biochemical technologies such as anaerobic digestion and biofuel production, and we delved into the renewable nature of biomass, which is derived from organic sources such as agricultural residues, forestry waste, and special energy crops. We highlight the adaptability of biomass for the production of energy, heat, and biofuels. Furthermore, we evaluated the socioeconomic and environmental impacts of biomass use, including greenhouse gas emissions, land use, and community effects. To increase the potential of biomass as a renewable energy source, it is essential to understand how these three factors interact. To maximize energy production while curtailing environmental problems, this review examines obstacles, ongoing research, and recent developments in effective biomass-based energy systems. Graphical Abstract

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Biogas Production and Processing from Various Organic Wastes in Anaerobic Digesters and Landfills

Cited by 4 publications

References 46 publications

Surface-Modified Activated Carbon with a Superior CH₄/CO₂ Adsorption Selectivity for the Biogas Upgrading Process

Surface-Modified Activated Carbon with a Superior CH₄/CO₂ Adsorption Selectivity for the Biogas Upgrading Process

Techniques for treating leachate discharges: A critical review

Fueling the future: biomass applications for green and sustainable energy

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Biogas Production and Processing from Various Organic Wastes in Anaerobic Digesters and Landfills

Cited by 4 publications

References 46 publications

Surface-Modified Activated Carbon with a Superior CH4/CO2 Adsorption Selectivity for the Biogas Upgrading Process

Surface-Modified Activated Carbon with a Superior CH4/CO2 Adsorption Selectivity for the Biogas Upgrading Process

Techniques for treating leachate discharges: A critical review

Fueling the future: biomass applications for green and sustainable energy

Contact Info

Product

Resources

About

Surface-Modified Activated Carbon with a Superior CH₄/CO₂ Adsorption Selectivity for the Biogas Upgrading Process

Surface-Modified Activated Carbon with a Superior CH₄/CO₂ Adsorption Selectivity for the Biogas Upgrading Process