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Environment

Biofuels Firm HCL Raises Venture Funds

by Melody Voith
June 8, 2009 | A version of this story appeared in Volume 87, Issue 23

HCL CleanTech, a cellulosic biofuel start-up, has raised its first round of funding from venture capital firms Burrill & Co. and Khosla Ventures. HCL claims to have improved a World War II-era German process for converting cellulose to sugar using concentrated hydrochloric acid. The company says it has developed a solvent extraction method to reclaim the acid for reuse. HCL says its process allows users to accept a wide variety of feedstocks without pretreatment and requires less water and energy than sulfuric acid or enzymatic methods.

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