COMPOSITION AND PROCESS FOR MERCURY REMOVAL

• Main Authors: BRADEN JEFFERY L, TURBEVILLE WAYNE, KORYNTA GREG, COLE TODD
• Format: Patent
• Language: English
• Published: 17.04.2015
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; SEPARATION; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

A process for removing mercury from a gas or liquid phase wherein the gas or liquid phase containing mercury is placed in contact with a composition comprising a precipitated metal sulfide. The precipitated metal sulfide may be made by the process of combining a metal source sulfide source and modifier to form the precipitated metal sulfide. The metal source may comprise iron cobalt nickel copper zinc zirconium molybdenum silver or gold salts. The metal salt may be selected from metal nitrate metal sulfate metal phosphate metal acetate metal carbonate metal hydroxide metal ammonium carbonate and metal hydroxycarbonate. The sulfide source is selected from hydrogen sulfide (HS) carbonyl sulfide (COS) salts of sulfide (S) salts of hydrosulfide (HS) and salts of polysulfide (Sn). The modifier may be selected from alumina silica aluminosilicate clay zeolites carbon cement titania zirconia.