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Refinery Hydrotreating Filters
Process Purpose
Catalytic chemical process to remove S, N, O, metals from straight run and cracked products. This “clean-up” also saturates olefins to yield easier-to-process intermediates. Sulfur is poisonous to the reformer catalysts (noble metals), but primarily removed to meet emission requirements.
Applications
- Feed Filtration (Heat Exchanger and Reactor Bed Protection)
- De-bottlenecking of HP & LP Separators
- Burner Protection – L/G coalescers to protect low NOx burners. Fuel gas can contain trace amine, condensable HC, corrosion products.
- Recycle Gas Compressor Protection – L/G coalescer, removing HC, ammonium sulfide salt carryover.
- Steam-stripped Product De-hazing – Filtration and L/L coalescing. Steam strippers are required to drive out residual H2S but introduce water to the HC. Common solution: L/L coalesce and salt drier.
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