Biogas, a renewable energy source, is primarily composed of methane and carbon dioxide
and other gaseous species. Biogas upgrading for removing CO 2 from raw biogas is a …

Biogas from anaerobic digestion of organic materials is a renewable energy resource that
consists mainly of CH 4 and CO 2. Trace components that are often present in biogas are …

In the field of biogas upgrading, there are five conventional technologies used for CO 2
removal, namely, water scrubbing, chemical and physical scrubbing, membranes and …

Increasing consumption of fossil fuels and environmental concern has led to increased use
of compressed natural gas (CNG) in the transportation sector. Keeping in view limited …

Biogas contains carbon dioxide in the range of 35–45 vol%. Upgrading biogas to
biomethane is primarily based on carbon dioxide removal. Biomethane is essentially …

Biogas is acknowledged as one of the foremost bioenergy to address the current
environmental and energy challenges being faced by the world. Commonly, biogas is used …

In this paper, ideas for improving the cryogenic separation of CO 2/CH 4 mixture are drawn
in order to upgrade biogas to biomethane, matching natural gas standards. On this basis, a …

An innovative biogas upgrading method that, differs from the currently employed commercial
techniques, allows also to capture and store the separated CO2 is investigated. This …

A well-known and widespread method for producing a hydrogen-rich gas stream consists of
reforming processes that convert a hydrocarbon, by adopting a substance, usually steam, to …

Biomethane production through biogas upgrading is a promising renewable energy for
some industries which could be part of the equilibrium needed with fossil fuels consumption …