Definition:
A purification process that eliminates trace amounts of mercury from natural gas to prevent equipment corrosion and environmental contamination.
Key Components:
- Activated Carbon Beds: Absorb mercury from gas streams.
- Molecular Sieves: Trap mercury molecules using porous adsorbent materials.
- Chemical Scavengers: React with mercury to form stable, non-volatile compounds.
Use Cases/Industries:
- LNG Plants: Prevents mercury from damaging cryogenic heat exchangers.
- Gas Pipelines: Ensures compliance with regulatory limits on mercury emissions.
- Petrochemical Processing: Protects catalysts and equipment from mercury poisoning.
Advantages:
- Equipment Protection: Prevents corrosion and damage to processing units.
- Regulatory Compliance: Meets strict environmental and health safety standards.
- Improved Product Quality: Ensures gas meets high-purity specifications.
Challenges:
- Disposal Issues: Captured mercury requires safe and regulated disposal.
- Cost Considerations: Specialized removal systems add to operational expenses.
- Variable Mercury Content: Concentration in raw gas can fluctuate, requiring adaptable solutions.
Related Terms:
Heavy Metal Purification, Gas Scrubbing, Contaminant Removal
Example:
An LNG plant uses activated carbon beds to remove mercury from natural gas, preventing damage to liquefaction equipment.
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Synonyms:
Mercury Scrubbing, Heavy Metal Removal, Gas Purification
