Woody energy crops

Woody energy crops. Short-rotation woody crops are fast-growing hardwood trees harvested within 5-8 yr after planting. These include hybrid poplar, hybrid willow, silver maple, eastern cottonwood, green ash, black walnut, sweetgum, and sycamore. 

Energy crops Herbaceous energy crops, woody energy crops, industrial crops, agricultural crops, and aquatic crops... 

Energy crops Short-rotation woody crops, herbaceous woody crops, grasses, starch crops, sugar crops, forage crops, oilseed crops, switchgrass, miscanthus... 

Energy crops. Energy crops are simply crops grown for this specific purpose and are continually replanted once harvested. Woody short-rotation crops are examples of these crops. Trees such as the poplar, the eucalyptus, the willow, and the conifers are expected to be useful [16-22], as are agricultural crops such as the sweet sorghum and the algae. 

The use of crops for the purpose of energy generation has been described in the literature [16-22,32], The use of energy crops reduces the net C02 emissions by a significant amount. More information on C02 emissions can be found in the literature [33]. Typically, crops used for these fuel purposes include short-rotation woody crops and short-rotation herbaceous crops such as switch grass [34],... 

Woody biomass is low in ash content, sulphur, chlorine and silica, and the ash itself is dominated by compounds of Ca and K. Biomass fuels from crops are higher in ash content, sulphur, chlorine and silica. The ash is dominated by oxides of Ca, K and Si. The fuels based on the growing parts of trees (bark+debries) show ash compositions between the two extremes, wood and acre crops. Therefore the largest chlorine emissions are expected from energy crops (grasses) and from agricultural by products (straw etc). 

Content of compound (%) Agricultural waste Woody plants Municipal solid waste Herbaceous energy crops... 

Energy crops Herbaceous, woody, industrial, agricultural and aquatic crops (seaweed and... 

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