Clean up and passivation of mercury in gas liquefaction plants
AssigneeMobil Oil Corporation
InventorTsoung Y. Yan
Life of this patent
Estimating the term…
Abstract
Gas liquefaction apparatus contaminated with mercury is decontaminated by circulating through the apparatus a solvent containing sulfur or a gas containing a sulfur reactant such as sulfur, hydrogen sulfide or alkyl thiol.
Claims12
A process for passivating mercury present as a contaminant on gas processing equipment comprising contacting said mercury with a liquid solvent containing at least in part sulfur or a sulfur-containing compound selected from the group consisting of free elemental sulfur, colloidal sulfur, hydrogen sulfide, monosulfides, polysulfides and alkyl thiols said liquid solvent being selected from the group consisting of benzene, toluene, methanol, butane, propane, gas condensate, ethane, ethanol, propanol, carbon disulfide and mixtures thereof.
A process for passivating mercury present as a contaminant on gas processing equipment comprising contacting said mercury with a liquid solution containing, at least in part, sulfur or a sulfur-containing compound selected from the group consisting of free elemental sulfur, colloidal sulfur, hydrogen sulfide, monosulfides, polysulfides and alkyl thiols and a liquid solvent selected from the group consisting of benzene, toluene, methanol, butane, propane, gas condensate, ethane, ethanol, propanol, carbon disulfide and mixtures thereof.
Dependencies are inferred from the claim text.