A team from Brunel\u2019s Wolfson Centre for Materials Processing are working alongside industrial and academic partners to trial a new Biorefinery Centre, launched on Friday 30 September at the UK\u2019s Institute for Food Research (IFR). The Centre will produce second generation biofuels \u2013 fuels that are made from agricultural waste such as straws and from the inedible by-products of food processes such as cereal milling. Using waste rather than specially grown materials removes concerns about the possible competition between growing crops to feed an ever-increasing global population, and crops for biofuel production.<\/b><\/p>\n
The biofuels produced will be tested by Lotus Engineering, and will have a much lower carbon footprint than traditional fuels as well as a potential performance advantage.<\/p>\n
At the heart of the Centre is a steam explosion biorefinery plant. The plant blows apart the cell structure of leftover plant materials, allowing the extraction of sugars which are then fermented with yeast to produce bio-alcohol. The Brunel team are focusing on the pre-treatment of these leftover materials to maximise the efficiency of the biorefinery process.<\/p>\n
“Yield depends very much on the first stage treatment,\u201d explained Brunel\u2019s project leader Professor Jim Song. “We are maximising yield at the pre-treatment stage, which makes for high efficiency in the biorefinery plant itself.\u201d<\/p>\n
Far from ending there, Brunel\u2019s DEFRA-funded project also extends to the re-use and recycling of the plant\u2019s own by-products. Sugars are locked into the cell structures of the strong, woody parts of plants by a substance called lignin, which cannot be used to produce bio-alcohol. Instead of discarding lignin as waste, the Brunel team are investigating its use as a raw material for fine chemicals such as anti-oxidants, antibacterials, and dispersion surfactants. Making bio-based anti-oxidants from lignin is of particular interest, as there is strong demand for non-synthetic anti-oxidants in the food and cosmetic industries.<\/p>\n
The IFR\u2019s Professor Keith Waldron said: “Once the food part of a crop has been exploited, there is a mass of material left behind that is often discarded as waste. With the launch of the pilot plant we have all the expertise necessary to help industry explore ways to make use of it.\u201d<\/p>\n
Contacts<\/b> Andrew Chapple,
IFR Press Office
Zoe Dunford,
email: zoe.dunford@nbi.ac.uk<\/a>,
phone: 01603-255111<\/p>\n
email: andrew.chapple@nbi.ac.uk<\/a>,
phone: 01603 251490<\/p>\n