Model DBC Series -Biogas Desulfurizer

In biogas production plants one of the main problems is due to the high concentration of H2S in the biogas. The technologies used are essentially: addition of iron oxides powder in the digester (with a high operating costs); biological scrubbers (with a very high investment cost); Chemical scrubbers (with very high operating costs and more frequent maintenance) and static filters using activated carbon or iron oxides (with very high operating costs).

airdep has designed New Innovative technology with very low investment cost and a low operating cost. The plant is composed of a tower and a separate vessel, the biogas flows up from the bottom of the column and is washed with liquid which is fed from the top of the tower. After the liquid has passed through the contact bed in the scrubber, it reaches the oxidation vessel through a connecting pipe, in this tank the liquid undergoes an oxidation through air blown from the bottom by a blower. From the oxidation tank the liquid is pumped back to the scrubber through a recirculation pump that draws from the bottom of the tank and sends it to the top of the scrubber bed.

The DBC is designed for the desulfurization of biogas with H2S concentration from 2 to 20,000 ppm.

• Low investment cost
• Low operating cost
• Non Hazardous Liquid Waste