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February 15, 2013
70 ethanol refineries under way that use wood scraps, garbage
DES MOINES, Iowa (AP) — Ethanol producers have talked for decades about using plant residue, wood scraps and even garbage to produce the fuel additive, but now companies finally are building full-scale refineries.
About 70 cellulosic ethanol projects are under way, reflecting billions of dollars of private investment.
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