Method for the removal of carbon monoxide from a gas mixture

Details Method for the removal of carbon monoxide from a gas mixture Method for the removal of carbon monoxide from a gas mixture

2005-05-27

2010-02-23

Langel, Wayne (Department: 1793)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon monoxide component

C423S655000, C423S656000

Reexamination Certificate

active

07666377

ABSTRACT:
The present invention discloses a method for removing carbon monoxide (CO) from a gas mixture containing CO including contacting the gas mixture with a nano-gold catalyst to reduce the CO content in the gas mixture by CO selective adsorption/oxidation, water gas shift reaction or CO selective oxidation reaction. The nano-gold catalyst includes a solid support and gold deposited on the support, wherein the deposited gold has a size less than 10 nm, and the support is a mixed metal hydroxide and oxide having the following formula:in-line-formulae description="In-line Formulae" end="lead"?M(OH)qOyin-line-formulae description="In-line Formulae" end="tail"?Wherein M is Ti, Fe, Co, Zr, or Ni; q is 0.1-1.5; and q+2y=z, wherein z is the valence of M.

REFERENCES:
patent: 5145822 (1992-09-01), Falke et al.
patent: 6589493 (2003-07-01), Hosaka et al.
patent: 1579621 (2005-02-01), None

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