"The whole hemp stalk can also be used to produce various biofuels such as bio-oil (or pyrolytic liquid), cellulosic ethanol, syngas (synthetic gas) and methane. Alternatively, the bast fibre can first be removed for use in high-value fibre applications, and the remaining hurd can then be processed into biofuel. The processes by which hemp is converted to biofuels may also produce valuable chemicals and other materials as bi-products."
Source
The Agricola Group. "National Industrial Hemp Strategy. The Agricola Group. Ottawa, Canada: Manitoba Agriculture, Food and Rural Initiative Agriculture and Agri-Food Canada, March 30, 2008.