Catalytic embers for use with a gas fired log set
AssigneeAdvanced Catalyst Systems, LLC
InventorsLarry E. Campbell, Tracy D. Staller, Douglas Campbell
Life of this patent
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Abstract
A synthetic ember comprising refractory ceramic wool coated with about 0.10 wt. % to about 5.0 wt. % of an oxidation catalyst of Pt, Pd, Rh, Co, Mn and mixtures thereof for use in small pieces as embers in a gas-fired log set or fireplace. The refractory ceramic wool preferably has a surface area of from 20 to 200 square meters per gram and a density of 0.01 to 0.05 grams per cubic centimeter and the catalytic embers are less than one inch square. The synthetic embers increase heat recoverable at a given BTU from a flame, with reduced nitrogen oxides, hydrocarbons and CO emissions and improved aesthetics.
Claims16
A synthetic ember for use in a gas fireplace comprising a refractory ceramic wool element having a surface area of from about 20 to about 200 square meters per gram and a density of about 0.01 to about 0.05 grams per cubic centimeter and coated with an oxidation catalyst.
Dependencies are inferred from the claim text.