Biogas desulphurisation: digester vs gas line
Biogas desulphurisation can be done inside the digester (precipitating sulphides with iron salts or using conductive nanoparticles) or downstream, in the gas line (impregnated activated carbon, biofilters, chemical scrubbers). The correct technical decision is not choosing one or the other: it is understanding which fits your plant’s H2S regime, the engine or biomethane-grid specification, and […]