Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Reexamination Certificate
2006-12-20
2011-10-04
Smith, Duane (Department: 1776)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
C095S197000, C095S211000, C095S232000, C096S234000, C096S244000, C096S290000
Reexamination Certificate
active
08029753
ABSTRACT:
An ammonia contact scrubber system (10) for removing ammonia from a fuel stream for a fuel cell (16) includes a contact scrubber (12) having a scrubber fuel inlet (14) and a scrubber fuel exhaust (20) for directing flow of the fuel stream through support material (24) within the scrubber (12) and into the fuel cell (16). An acid circulating loop (26) has an acid holding tank (28) holding a liquid acid solution (30), an acid feed line (32) secured in fluid communication between the holding tank (28) and a scrubber acid inlet (36) of the contact scrubber (12), an acid return (38) for returning the acid solution from the scrubber (12) to the acid holding tank (28), and an acid circulation pump (42) for pumping the acid solution (30) through the acid circulating loop (26) and through the support material (24) within the scrubber (12).
REFERENCES:
patent: 4259302 (1981-03-01), Katz et al.
patent: 5792572 (1998-08-01), Foley et al.
patent: 6376114 (2002-04-01), Bonville, Jr. et al.
patent: 2009/0246573 (2009-10-01), Grasso et al.
Chisholm, Jr. Malcolm J.
Palmer Tiffany N
Smith Duane
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