Biogas Purification
Activated Carbon for Mercury Removal in LNG and Natural Gas Processing
Natural gas and LNG processing facilities operate at the intersection of cryogenic engineering and molecular purification. Trace mercury in feedstock gas, often at ppb levels, poses a catastrophic risk to aluminum heat exchangers in liquefaction trains: mercury amalgamates with aluminum, causing catastrophic corrosion failures that can shut down billion-dollar facilities. The carbon must eliminate this trace threat without introducing pressure drop that would reduce throughput or particulate that would foul downstream equipment.
The Challenge & PureStar Approach
The challenge is ultra-trace removal at high flow and high pressure . LNG facilities process massive gas volumes at elevated pressures; any adsorption system must deliver mercury capture with minimal pressure loss and zero carbon attrition that could carry into the cryogenic section. The Margin for Error is Zero: A single breakthrough event can destroy a main cryogenic heat exchanger.
The PureStar Advantage
PureStar's natural gas mercury grades employ high-affinity impregnation on low-dust, high-strength substrates that maintain structural integrity under high-pressure flow conditions.
- Process Profile Optimization: Our formulations are optimized for the temperature and pressure profiles of natural gas treatment trains, providing consistent mercury capture across the adsorption cycle without the capacity collapse that forces premature bed replacement.
- High Side-Crush Strength: For LNG guard-bed applications, our pelletized forms offer the exceptional side-crush strength needed to prevent fines generation that would foul downstream cryogenic equipment.
