发明名称 |
Gas stream treatment process |
摘要 |
A process of treating a gas stream containing mercury is disclosed. The method comprises: applying a sorbent into said gas stream ahead of a particulate matter collection device, in order to adsorb at least a portion of a mercury containing compound, wherein said sorbent contains a composition comprising a compound having the following formula (SiO2)x(OH)yMzSaF: wherein M is at least one of the following metal or metalloid cations: boron, magnesium, aluminum, calcium, titanium, vanadium, manganese, iron, cobalt, nickel, copper, zinc, zirconium, molybdenum, palladium, silver, cadmium, tin, platinum, gold, and bismuth; wherein S is a sulfur-based species selected from at least one of the following: sulfide salts, dithiocarbamates, polymer-based dithiocarbamates, and polysulfide salts; wherein F optionally exists and said F is at least one of the following: a functionalized organosilane, a sulfur-containing organosilane, an amine-containing organosilane, and an alkyl-containing organosilane at a surface area coverage of 0.01-100%; and wherein the molar ratio of y/x is equal to 0.01-0.5, the molar ratio of x/z is equal to 3-300, and the molar ratio of a/z is 1-5. |
申请公布号 |
US9555420(B2) |
申请公布日期 |
2017.01.31 |
申请号 |
US201012756491 |
申请日期 |
2010.04.08 |
申请人 |
Nalco Company |
发明人 |
Keiser Bruce A.;Ergang Nicholas S.;Mimna Richard |
分类号 |
B03C3/017;B01D53/02;B01D53/64;B03C3/011 |
主分类号 |
B03C3/017 |
代理机构 |
Brinks Gilson & Lione |
代理人 |
Babych Eric D.;Brinks Gilson & Lione |
主权项 |
1. A process of treating a gas stream containing mercury, comprising: applying a sorbent into said gas stream ahead of a particulate matter collection device, in order to adsorb at least a portion of a mercury containing compound, wherein said sorbent contains a composition comprising a compound having the following formula (SiO2)x(OH)yMzSaF: wherein M is at least one of the following metal or metalloid cations: boron, magnesium, aluminum, calcium, titanium, vanadium, manganese, iron, cobalt, nickel, copper, zinc, zirconium, molybdenum, palladium, silver, cadmium, tin, platinum, gold, and bismuth; wherein S is a sulfur-based species selected from at least one of the following: sulfide salts selected from sodium sulfide, potassium sulfide, and metal sulfide, dithiocarbamates selected from dimethyldithiocarbamate and diethyldithiocarbamate, polymer-based dithiocarbamates containing the functional group RnCS2 wherein R is an alkyl group which is linear or branched, and polysulfide salts selected from sodium polysulfide and calcium polysulfide; wherein M and S are embedded within the sorbent; wherein F optionally exists and said F is at least one of the following: a functionalized organosilane, an amine-containing organosilane, and an alkyl-containing organosilane at a surface area coverage of 0.01-100%. |
地址 |
Naperville IL US |