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Biogas Purification through vPSA technology

Biogas is an easy-to-reach, renewable energy source that could help meet the world's endless energy needs and cut down on carbon emissions at the same time. It is thought that using upgraded biogas or bio methane (>90% methane) for transportation can cut greenhouse gas (GHG) emissions by 60% to 80% compared to petrol.

When biogas undergoes adequate purification, it exhibits similar characteristics to natural gas. Hence, the combustion of biogas yields a lower amount of carbon dioxide and a higher amount of water vapor per unit of energy compared to the combustion of coal, petrol or diesel.

Carbon dioxide and methane are the primary components of biogas. Furthermore, it includes trace amounts of other gases, including hydrogen, nitrogen, and hydrogen sulfide. 

Sonitech VPSA is widely regarded as the most appealing and efficient biogas upgrading process due to its simple control, low operating and capital investment costs, and higher energy efficiency. Our Vacuum Pressure Swing Adsorption (VPSA) process is a commonly employed industrial unit operation for the separation of gas mixtures. In this process, one or more gases are selectively adsorbed and then desorbed at different pressures attributed by vacuum pump.

The VPSA & PSA methods exhibit similarities, with the key distinction being that the VPSA method incorporates a vacuum pump to  facilitate the desorption process of the adsorbate under vacuum conditions. Furthermore, it's a dry process that doesn't require any contact with water or contamination, which makes it adaptable and simple to use.

Advantages of Sonitech VPSA:-

v Economy in production with comparatively high purity.

v Capital cost is moderate.

v Relatively quick installation and start up

v More than 96% CH4 enrichment

v Lower power demand

v Adsorption of CO2, N2 and O2 to the maximum level

v Low maintenance

v Dry process

v No use of liquid chemicals

v No process water demand

vNo waste water

v Durable & Flexible

v No bacterial contamination of off gas

 

 

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