Gas separation: processes – Solid sorption – Inorganic gas or liquid particle sorbed
Reexamination Certificate
2007-09-14
2010-06-08
Chiesa, Richard L (Department: 1797)
Gas separation: processes
Solid sorption
Inorganic gas or liquid particle sorbed
C095S058000, C095S134000, C095S230000, C095S234000, C110S342000, C110S345000, C423S210000, C423S215500, C502S180000
Reexamination Certificate
active
07731781
ABSTRACT:
The invention provides methods and apparatuses for removing aerosols and, in some cases, vapor phase contaminants, such as mercury, from a gas stream. One method is directed to the removal of additional aerosols from a gas stream from which aerosols have previously been removed by using a screen in combination with a primary aerosol collection device. Another method is directed to the removal of both aerosols and vapor phase contaminants by using a sorbent in combination with a screen. Another method is directed to the removal of vapor phase contaminants by using a catalyst to convert the contaminant to a form that is more easily removed from the gas stream and optionally injecting a chemical to increase the rate of conversion. The invention also provides various apparatuses for use in performing the various methods of the invention.
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U.S. Appl. No. 12/411,255, filed Mar. 25, 2009, Chang.
Berry Mark Simpson
Chang Ramsay
Chiesa Richard L
Electric Power Research Institute Inc.
Owens Tarabichi LLP
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