Process for making porous activated carbon
A two-cycle thermal process for making porous activated carbon materials involves a first step of heating a mixture of a carbon precursor/chemical additive in a first heating cycle at a first temperature to cause gas liberation and volumetric expansion of the mixture, and heating the carbon material produced in the first step in a second heating cycle at a second temperature to carbonize and activate the carbon precursor. During the second cycle, essentially no gas liberation or volumetric expansion is observed.
Corning Incorporated
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Y02E C01B H01G C01B
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Jia Kishor Purushottam
Liu Gadkaree