Biogas is created by fermenting organic material, such as manure, sludge or household waste. It is an environmentally friendly alternative to natural gas. As it usually contains sufficient methane (CH4), it lends itself quite well for combustion in burners.
Nonetheless, the use of requires a number of specific techniques:
- the production of biogas is often not stable. That is why biogas is often burned simultaneously with natural gas. The biogas has priority over the natural gas; the latter is only added if this is necessary for the process.
- biogas usually also contains traces of the aggressive H2S (hydrogen sulfide). Therefore, all burner parts that come into contact with the biogas are usually made of stainless steel. The automatic biogas valves must also be resistant to the effects of H2S.