Mercury Removal Unit Design Calculator
Sizes MRU vessels using material balance, contact time requirements, and superficial velocity limits. Calculates adsorbent mass, bed dimensions, and pressure drop for sulfur-impregnated carbon, metal sulfide, or silver-impregnated media. Results include design assessment per GPSA guidelines.
Feed Gas Conditions
MMSCFD
psia
°F
Sulfur-impregnated carbon: max 120°F for full capacity
Mercury Content
µg/Nm³
µg/Nm³
LNG Specs: Typically <10 ng/Nm³ (0.01 µg/Nm³); some projects require <1 ng/Nm³
Adsorbent Selection
months
Sulfur-Impregnated Carbon: Industry standard for natural gas. 10-20 wt% Hg capacity, non-regenerable, operates at ambient to 120°F. Forms stable HgS.
📚 Mercury Removal Fundamentals
Mercury contamination sources, removal technologies, bed sizing methods, regeneration vs. disposal economics, and LNG specifications
Mercury causes catastrophic liquid metal embrittlement (LME) of aluminum brazed heat exchangers in LNG plants. Even trace amounts (ppb levels) lead to: