The DMT BioSulfurex® Biological (bio)gas desulphurisation0 pages

BioSulfurex
®
> (Bio)gas desulphurisation
Standard system for removing H2S from biogas
Why use DMT BioSulfurex®?
The Basic Process
•tNo chemicals
•tHigh efficiency on H2S
•tLow operational costs t
•tO2-measurement for optimal
t efficiency and safety
The biogas and air are mixed with packing
Biological H2S removal without
chemical use.
mental condition and oxygen concentration.)
media flowing in a counter current with circu-
Oxygen is added to the gas as compressed air
lating water in a vertical column. The pack-
with an automatic control system adjusting the
ing media enlarges the contact surface area
air flow in correlation with the biogas flow and
between the H2S in the gas flow, the nutrients
oxygen concentration. Water and nutrients are
in the water and the oxygen, also acting as a
automatically refreshed and sprayed on top of
carrier for the bacteria. When limited quantities
the media as required and heat can be added
of oxygen are added to the biogas, specific
into the water circulation loop via a heat-
aerobic bacteria such as Acidothiobacillus
exchanger to create the optimum temperature
oxidise H2S into elemental sulphur and/or
for the biological process.
sulphuric acid (dependent on the environDMT BioSulfurex®
The DMT BioSulfurex®
basic process
Options
•tGas drying and conditioning
• Sulfurex® as a backup
•tAdditional measurements
t (CH4/CO2)
•tBiogas blower
•tRedundancy
Nutrients
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