The production of Bio-LNG from biogas involves various technical risks, with the greatest challenges often arising during the gas treatment and upgrading phases. Raw biogas contains various contaminants such as siloxanes, water, ammonia, and sulfur compounds like H₂S
Although liquefaction is often viewed as the most complex step, many operational problems stem from insufficient removal of these components. Trace contaminants can lead to corrosion, fouling, and blockages in equipment.
Cryogenic heat exchangers are particularly susceptible to these impurities. At low temperatures, components can freeze or precipitate, resulting in blockages and loss of efficiency. The formation of ice or even solid CO₂ (dry ice) can severely disrupt the operation of the plant.
In addition, the variability of biogas plays an important role. Its composition depends on the source and can fluctuate, posing a challenge for a stable process design.
A reliable Bio-LNG plant therefore requires a robust combination of effective gas purification and a flexible design that can withstand variations in feed gas.
#BioLNG #BiogasUpgrading #GasTreatment #CryogenicEngineering #ProcessOptimization #EnergyEfficiency #Industry #Engineering