What parts of the tree will Frontier use for making cellulosic ethanol?
Frontier will use the pulpwood from the main portion of the trunk of smaller “pulpwood-size” trees, and the upper portion of larger “sawtimber” trees. This also is typically referred to as pulpwood, which is then debarked and processed into wood chips. From stump to pump, Frontier’s cellulosic ethanol facility will generate very little waste because we will use all parts of the delivered pulpwood: the bark will be utilized or sold for boiler fuel, water in the tree will be used in the process, lignin will also be utilized or sold for boiler fuel, and the cellulose will be converted to the natural sugars to be turned into ethanol.
