Different pollutants in different concentrations
Biogas is more and more used for combined heat and power (CHP) operations or can simply be turned into electricity. In most cases more than a single technology is required.
Avoiding damage to biogas generators
H2S and Siloxanes that are present in Biogas and damage the engine need to be reduced to very low concentrations.
High Operational Cost
Tradeoff between investment in removal technologies and consumables to high investment in systems maintenance.
Extending Equipment Lifetime
H2S shortens the lifetime of engines oil, harming heat exchangers. Tradeoff between investment in removal technologies and consumables to high investment in systems maintenance.
Silica residues and erosion damage engines.
Industrial Gas Cleaning
Stringent changing emissions standards forcing companies to rethink their processes.
Combining different technologies each designed for a single-pollutant removal process.
Generation of multiple waste streams and by-products with limited use.
CapEx / OpEx Implications
Significant investments and ongoing expenses to manage air pollution control.