Results 51 to 60 of about 1,422 (180)

Coupling biogas upgrading with biopolymers accumulation through cyanobacteria CO2 fixation

open access: yesJournal of CO2 Utilization
Biogas, primarily composed of carbon dioxide (CO2) and methane, requires upgrading to biomethane by removing the CO2 to improve its usability, making it suitable for direct injection into gas grid and serving as a renewable alternative to fossil-derived ...
Flavio Collura   +5 more
doaj   +1 more source

From Biogas to Biomethane: How the Biogas Source Influences the Purification Costs

open access: yesChemical Engineering Transactions, 2015
Often left in the background by media, biogas is a renewable energy source with a great potential for development. Its production is based on the anaerobic digestion of organic waste materials, which are usually livestock effluents, municipal and ...
L. Pellegrini   +4 more
doaj   +1 more source

Multistep process for biogas upgrading

open access: yes, 2022
In this work, we proposed a multistep membrane process for the upgrading of a mixture containing 60% of methane and 40% of carbon dioxide, considering three case studies that allow to cover a wide range of CO2 permeability (from 5 to 180 Barrer) and CO2/CH4 selectivity (from 30 to 200).
PF Zito, A Brunetti, Barbieri G
openaire   +2 more sources

Metal Hydrides‐Based Hydrogen Purification Systems—A Review

open access: yesMetalMat, EarlyView.
Metal hydrides as an innovative means to purify hydrogen can enable new avenues in the use of hydrogen as a clean energy vector across its production methods. ABSTRACT This review investigates the critical role of purification for enabling the use of hydrogen from various production pathways.
Cameron Reid   +2 more
wiley   +1 more source

From Global Mapping to Local Action: Green Finance, Regulatory Frameworks, and Policy Transformation for Sustainable Energy Transition in Qatar and Türkiye

open access: yesSustainable Development, EarlyView.
ABSTRACT In 2024, global annual issuance exceeded USD 1.1 trillion mostly through green bonds, credits, and sustainability‐linked instruments, yet significant regional disparities remain. This article examines how Qatar and Türkiye, two hydrocarbon‐dependent but rapidly transitioning economies, are integrating green finance into their sustainability ...
Furkan Ahmad   +4 more
wiley   +1 more source

How AI and Digital Technologies Can Enhance Sustainable Livestock Manure Management: An Overview From Treatment to Distribution

open access: yesSustainable Development, EarlyView.
ABSTRACT Sustainable livestock manure management sits at the nexus of climate, nutrient circularity and water quality. This review explores how artificial intelligence (AI) and digital platforms are used across four management stages, that is, treatment, storage, valorisation and distribution, and figures out where integration fails to deliver ...
Zhan Shi   +3 more
wiley   +1 more source

Exploring Activated Carbons for Sustainable Biogas Upgrading: A Comprehensive Review

open access: yesEnergies
Global energy supply remains, to this day, mainly dominated by fossil fuels, aggravating climate change. To increase and diversify the share of renewable energy sources, there is an urgent need to expand the use of biofuels that could help in ...
Deneb Peredo-Mancilla   +3 more
doaj   +1 more source

Biogas Upgrading: Analysis and Comparison between Water and Chemical Scrubbings

open access: yesChemical Engineering Transactions, 2013
Biomethane is a renewable energy source that can be used, e.g., for transportation or injection in the natural gas grids. It is obtained from proper biogas treatment.
S. Gamba, L. Pellegrini
doaj   +1 more source

High‐Rate and Selective Conversion of Low‐Concentration Carbon Dioxide to Carbon Monoxide Using a Carbon Nanotube‐Supported Molecular Electrocatalyst

open access: yesSmall, EarlyView.
With significantly enhanced accessibility, optimized CO2 affinity, and CO2 adsorption capacity of CoPc active sites, the molecularly dispersed MWCNT|CuPc‐CoPc electrodes realize efficient single‐pass conversion of CO2 to CO, yielding a high CO yield of 65.7 ± 2.3% and an energy efficiency of 54.8 ± 1.9% using 20% CO2 at an ampere‐level current (0.625 A)
Tzu‐Hsuan Wang   +6 more
wiley   +1 more source

Simulation of Fixed-Bed Adsorption for Biogas Upgrading

open access: yes, 2023
Great efforts have been devoted to developing clean sources of energy that can contribute to keeping global warming below 2ºC in the coming 30 years. Biogas is a renewable source of energy that can be easily produced by the treatment of agricultural, municipal, and industrial wastes.
Zafanelli, Lucas F.A.S.   +4 more
openaire   +3 more sources

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