Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture
Reexamination Certificate
2011-08-30
2011-08-30
Vanoy, Timothy (Department: 1734)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
C095S134000
Reexamination Certificate
active
08007749
ABSTRACT:
Disclosed herein is a method for removing mercury from a gas stream comprising contacting the gas stream with a getter composition comprising bromine, bromochloride, sulphur bromide, sulphur dichloride or sulphur monochloride and mixtures thereof. In one preferred embodiment the getter composition is adsorbed onto a sorbent. The sorbent may be selected from the group consisting of flyash, limestone, lime, calcium sulphate, calcium sulfite, activated carbon, charcoal, silicate, alumina and mixtures thereof. Preferred is flyash, activated carbon and silica.
REFERENCES:
patent: 5435980 (1995-07-01), Felsvang et al.
patent: 5695726 (1997-12-01), Lerner
patent: 5900042 (1999-05-01), Mendelsohn et al.
patent: 6136281 (2000-10-01), Meischen et al.
patent: 6258334 (2001-07-01), Gadkaree et al.
patent: 6284208 (2001-09-01), Thomassen
patent: 6372187 (2002-04-01), Madden et al.
patent: 6375909 (2002-04-01), Dangtran et al.
patent: 6808692 (2004-10-01), Oehr
patent: 6878358 (2005-04-01), Vosteen et al.
patent: 6953494 (2005-10-01), Nelson, Jr.
patent: 6960329 (2005-11-01), Sellakumar
patent: 6969494 (2005-11-01), Herbst
patent: 6974564 (2005-12-01), Biermann et al.
patent: 7479263 (2009-01-01), Chang et al.
patent: 7754170 (2010-07-01), Chang et al.
patent: 2003/0161771 (2003-08-01), Oehr
patent: 2004/0109800 (2004-06-01), Pahlman et al.
patent: 2008/0107579 (2008-05-01), Downs et al.
patent: 2009/0136401 (2009-05-01), Yang et al.
Ding, et al., “One-step Synthesis of Sulfur Dichloride Using Sulfur and Chlorine,” Fine Chemicals, vol. 16, No. 3, Jun. 1999, p. 62.
Rosser, et al., “Development of a large-scale distillation process for purifying crude sulphur dichloride. I. Laboratory Scale Investigations,” J. App. Chemistry, 1960, vol. 10, 229-237.
Unknown, “Mercury-emissions and control,” IEA Coal Research, The Clean Coal Center (Feb. 2002).
Livengood, et al., “Removal of Mercury from Coal-Combustion Flue-Gas,” twelfth Annual International Pittsburgh Coal Conference, Pittsburg, PA (Sep. 11-15, 1995).
Chang Shih-Ger
Liu Shou-Heng
Liu Zhao-Rong
Yan Naiqiang
Fulbright & Jaworski L.L.P.
The Regents Of The University Of Calfornia
Vanoy Timothy
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