Wood biomass Subject

Borssele power plant also has the intention to co-combust 120 ktons per annum of biomass. Exanples of the types of biomass have already been listed in table 6 (sewage sludge and cocoa shells), but paper sludge, clean and untreated waste wood, waste pellets and charcoal may also be used. Most of the fiicls will be blended with the coal prior to pulverisation, although the possibility of installing separate pulverisers for the biomass fuels is subject of study. 

Pyrolysis under vacuum of aspen poplar wood chips exhibited an active zone of decomposition occurring between 240 and 300 C . A 58 % by wt, yield of pyrolytic oil was obtained at 350°C which contained miscellaneous compounds such as phenols, carboxylic acids, alcohols and esters. The vacuum process removes the reaction products before they are further decomposed. The yield of relatively volatile phenols (monolignols in this paper) depends on the pyrolysis materials. The yield of phenols varied from 1 to 3.7 % when different biomass samples were subjected to vacuum pyrolysis. ... 

Another potential feedstock for ethanol production is the lignocellulosic biomass . Lignocellulosic biomass is the most plentiful of all naturally occurring organic compounds. It includes such materials as wood, herbaceous crops, agricultural and forestry residues, waste paper and paper products, pulp and paper mill waste, and municipal sohd waste. Unlike starchy materials, lignocellulosic biomass is structurally complex. The conversion of this material into ethanol has been the subject of intense study over the last 20 years. 

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