DMT Sulfurex - Model BF - Biological Gas Desulphurisation
Gas Desulphurisation of biogas and syngas is necessary to prevent corrosion and SOx emissions. Biogas is produced by fermenting biological waste and is considered one of the most important sources of renewable energy. It is a substitute for natural gas. Both biogas and syngas can contain hydrogen sulphide (H₂S), so desulphurisation is essential. Since the Sulfurex directly controls the caustic dosing with its H₂S sensor, the system requires very little time to adapt to fluctuations in H₂S load. Other advantages of the Sulfurex are the relatively small footprint, high robustness, efficiency and capacity, easy maintenance, and therefore low operational costs..
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H2S removal with the lowest operational costs
H2S removal with the lowest operational costs
Why use Sulfurex BF?
- No chemicals
- High efficiency on H2S removal
- Environmental friendly
How Does it Work?
The Sulfurex BF technology is a simple way of desulphurisation without the use of chemicals. The system operates as a biotrickling filter. In the bioreactor, bacteria convert the H2S into sulfuric acid. By creating the optimal conditions, the most effective desulphurisation bacteria are selected.
Monitoring and control of process conditions like pH, temperature, nutrients and oxygen level ensure maximal removal efficiency.
DMT Environmental Technology always selects the best packing media for the bacteria to grow on. This guarantees a small footprint and easy operation.
Biological Desulphurisation Explained
Specific bacteria such as Acidothiobacillus convert H2S into elemental sulphur and/or sulphuric acid, depending on the applied oxygen concentration. Oxygen is added to the gas, by an automatic control system, which adjusts the air flow in relation tthe biogas flow and outlet oxygen concentration.
Inside the Sulfurex BF, water and nutrients are automatically refreshed, sprayed on top of the bacteria and circulated over the bioreactor. The water is heated through a heat-exchanger to create the optimum temperature for the biological process. The produced sulphuric acid and excess biomass are removed from the process through the drain.
Bacterial conversion
H2S + 2O2 → H2SO4
Optional Features:
- Gas drying and conditioning
- Full (bio) gas analysis
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