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Microlith (catalytic reactor)
Microlith is a brand of catalytic reactor invented by the prize-winning engineer William C. Pfefferle and sold by Precision Combustion. Microlith's advantages include its weight, size, efficiency, and fast thermal response.
==Technology==
A catalyst is a substance that speeds a reaction but that itself is left in its original state after the reaction, so that it can assist in the reaction of a large quantity of material over a long period of time. A Microlith reactor is constructed with a very thin metal substrate coated with a variety of materials including catalysts to speed reactions, and adsorbent materials for use in filters. The substrate has short channels (0.001–0.020 in)〔Toensmier, Pat. "Redefining Performance." Defense Technology International January 2011: page 77. Print.〕 which resemble screens or meshes. This results in a lower pressure drop than other reactors and allows for high cell density and low thermal mass. Mass and heat transfer are significantly increased, allowing faster reactor response to gas temperatures and improved rates of reactant contact with the surface. By passing an electric current through the metal substrate, the Microlith can be heated rapidly and efficiently.〔"(Catalyst Substrates Remove Contaminants, Produce Fuel )." NASA Spinoff (2011): pages 128-29>. Retrieved 9 July 2013.〕〔"(Microlith Catalytic Reactor for Cabin Air-Cleaning )." NASA SBIR Success Story. 3 October 2011. Retrieved 9 July 2013.〕 Over 12 Microlith related US patents have been issued.〔Stinson, Helen. (SBIR Success at Marshall ). Aerospace Technology Innovation volume 7, number 4 July-Aug 1999: pages 15-17. Retrieved 11 July 2013.〕
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