Atmospheric environmental impact from new energy systems generation

It is the first time that looking for a waste material use and trying to ge t cheaper power with a lower consume of fossil fuel, a coal-tire blend (1 : 1 in organic matter) was burned in an atmospheric fluidised bed (AFB) comb ustion plant with an airflow of 8601/h and 20% excess oxygen at three diffe rent combustion temperatures (750 degreesC, 850 degreesC, 950 degreesC). Th e combustion conditions were the same that the ones performed in AFB coal c ombustion in order to compare the organic emissions obtained with both fuel s. As the inorganic components in tire are less and in lower amount than in coal, the work was focused on organic emissions. Organic emissions from each run were trapped and from each sample, after ex traction by ultrasonic bath with dimethylformamide (DMF), the content in po lycyclic aromatic hydrocarbons (PAH) was determined by fluorescence spectro scopy in the synchronous mode (FS). It is concluded that the introduction of lire in the feeder implies an incr ease in total PAH amount-emitted respect to coal emissions. PAH emissions i n the coal-tire blend combustion are in the range of 10-20 times greater th an in the coal combustion, with minimum variations at the combustion temper atures studied in this work but the higher the temperature, the lower the P AH amount emitted.