Abstract:
Renewable energy is currently the world’s leading interest area. Biogas is being given significant attention regarding its production, purification and upgradation for it to be used as a renewable fuel supplement for the generation of energy. Biogas is a rich source, due to the presence of high contents of methane. The composition of biogas is methane (50-70%) and impurities like carbon dioxide (30-50%), sulphur oxide, water and other trace components (1%). The presence of these impurities make it difficult to use biogas directly, as it reduces the gas heating value, cause operational problems for equipment and restrict its applications. It is necessary to upgrade biogas by removing carbon dioxide content to be used for required purposes. Different methods are used for biogas upgrading, such as cryogenic separation, membrane separation, adsorption and absorption. The method used for upgrading biogas in this work is the chemical absorption using a novel solvent for small-scale applications. This utilizes a solvent that has the ability to effectively remove carbon dioxide from the biogas mixture. Several previous researches studied different types of solvents such as amine-based solvents, organic solvents, solvent blends and ionic liquids. Amine solvents such as MEA have been long used for carbon dioxide removal from natural gas but due to certain limitations are not applicable for small scale applications. The solvent used in this work aims to achieve effective carbon dioxide absorption, a high absorption rate, greater absorption capacity and the possibilities for improvement by providing a more environmentally friendly operation.
Page(s):
0-0
DOI:
DOI not available
Published:
Journal: Sixth International Conference on Sustainability in Process Industries (SPI) 19-20 Octover 2022 (Book of Abstracts), Volume: 0, Issue: 0, Year: 2022
Keywords:
Biogas
,
CO2 absorption
,
solvent blend
,
biogas upgradation