The procedure of CO 2 removal through the absorption/desorption system based on
chemical amine solvents offers an interesting commercial technology to absorb CO 2 …

Agrowaste sources can be utilized to produce biogas by anaerobic digestion reaction. Fossil
fuels have damaged the environment, while the biogas rectifies the issues related to the …

Biogas is one of the most important renewable energy sources containing methane, carbon
dioxide, and small amounts of other gases and water. Raw biogas cannot be used because …

This study reviews the major biogas upgrading technologies, with specific regard to recent
progress in the field of membrane technology. More specifically, the objective of the present …

The hydrogen-enriched natural gas engines (HENGEs) have recently found huge popularity.
Despite the broad range of applications of the HENGE, their environmentally-associated …

Recent years have seen a transition to a sustainable circular economy model that uses agro-
industrial waste biomass waste to produce energy while reducing trash and greenhouse gas …

Biogas production from food waste with anaerobic digestion process and co-digestion
process obtained high purity of biogas. Food waste consists of proteins, carbohydrates …

Among the others, CO 2 and H 2 S are the major impurities present in biogas which typically
hampers its direct application as biofuel. Therefore, an upgradation for the purity of biogas is …

This review explores the potential of using different types of ash, namely fly ash, biomass
ash, and coal ash etc., as mediums for CO2 capture and sequestration. The diverse origins …

Farmland ecosystems are the most active carbon pool and contribute significantly to the
global carbon cycle. Since these ecosystems are influenced by both natural and human …