In-situ methane enrichment

Last changed: 05 November 2021

In-situ methane enrichment is a method to upgrade biogas that has the potential to become more cost effective than existing, commercially available, technologies. The principle is that sludge from the digestion chamber is circulated through a desorption colon and back again. The desorption of carbon dioxide is accomplished by letting the air bubble through the column. The process utilizes that carbon dioxide is easier to solve in water compared to methane.