<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Cordero, T</style></author><author><style face="normal" font="default" size="100%">Marquez, F</style></author><author><style face="normal" font="default" size="100%">Rodriguez-Mirasol, J</style></author><author><style face="normal" font="default" size="100%">Rodriguez, J J</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Predicting heating values of lignocellulosics and carbonaceous materials from proximate analysis</style></title><secondary-title><style face="normal" font="default" size="100%">Fuel</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">charcoal</style></keyword><keyword><style  face="normal" font="default" size="100%">heating value calculation</style></keyword><keyword><style  face="normal" font="default" size="100%">lignocellulosics</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2001</style></year></dates><volume><style face="normal" font="default" size="100%">80</style></volume><pages><style face="normal" font="default" size="100%">1567-1571</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">A simple equation based on proxymate analysis (volatile matter and fixed carbon contents) is presented which allows calculation of the higher heating value of lignocellulosic as well as the charcoals resulting from their carbonization. The equation has been tested with different lignocellulosic wastes and chars obtained from carbobization at different temperatures. Derivations from the experimental heating values fall in most cases below 2%. A comparison is presented with some equationsfrom the literature based on proximate, ultimate and chemical analysis data. As a general conclusion the equation proposed in this paper leads to comparableand in many cases more accurate predictions of heating valus and has the advantage of being applicable to a wide range of carbonaceous materials, requiring only a simple, rapid and cheap proximate analysis of the samples</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Cordero, T</style></author><author><style face="normal" font="default" size="100%">Rodriguez-Maroto, J M</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Thermal decomposition of wood in oxidizing atmosphere. A kinetic study from non-isothermal TG experiments</style></title><secondary-title><style face="normal" font="default" size="100%">Thermochimica acta</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Aleppo pine</style></keyword><keyword><style  face="normal" font="default" size="100%">combustion (voyant)</style></keyword><keyword><style  face="normal" font="default" size="100%">Cork oak</style></keyword><keyword><style  face="normal" font="default" size="100%">EUCALYPTUS</style></keyword><keyword><style  face="normal" font="default" size="100%">Holm oak</style></keyword><keyword><style  face="normal" font="default" size="100%">Kinetic model</style></keyword><keyword><style  face="normal" font="default" size="100%">pyrolysis</style></keyword><keyword><style  face="normal" font="default" size="100%">Wood</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1991</style></year></dates><volume><style face="normal" font="default" size="100%">191</style></volume><pages><style face="normal" font="default" size="100%">161-178</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The kinetics of thermal decomposition of four wood species in oxygen-bearing atmo- spheres of 5, 10 and 20% molar Oz concentrations have been studied from temperature-pro- grammed experiments carried out at 5, 10 and 20 K mm ’ -* heating rate. Devolatihzation as weII as combustion of the reaminin g solid have been considered to analyze the weight loss curves. The homogeneous volume reaction (VR) model has been used to describe devolatihza- tion, whereas for solid combustion the grain model has been also checked. A two-stage approach has been used to fit the conversion-time curves and to derive the corresponding apparent kinetic parameters. The VR/VR (pyrolysis/combustion) combination provided a better description of the experimental (~-1 curves than the VR/grain combination. Hohn oak and cork oak showed very close reactivities, whereas some differences were observed for aleppo pine and eucalyptus.</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Cordero, T</style></author><author><style face="normal" font="default" size="100%">Garcia, F</style></author><author><style face="normal" font="default" size="100%">Rodriguez, J J</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A kinetic study of holm oak wood pyrolysis from dynamic and isothermal TG experiments</style></title><secondary-title><style face="normal" font="default" size="100%">Thermochimica acta</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">heating rates</style></keyword><keyword><style  face="normal" font="default" size="100%">Holm oak</style></keyword><keyword><style  face="normal" font="default" size="100%">isothermal experiment</style></keyword><keyword><style  face="normal" font="default" size="100%">Kinetic model</style></keyword><keyword><style  face="normal" font="default" size="100%">pyrolysis (voyant)</style></keyword><keyword><style  face="normal" font="default" size="100%">Wood</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1989</style></year></dates><volume><style face="normal" font="default" size="100%">149</style></volume><pages><style face="normal" font="default" size="100%">225-237</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">The kinetics of holm oak wood thermal decomposition in a nitrogen atmosphere have been studied using dynamic and isothermal TG experiments. A number of different kinetic models are examined. Discrimination between the first order, second order and spherical symmetry boundary surface reaction models is difficult with the dynamic TG experiments. The isothermal weight loss curves obtained are best described by a first order rate equation.</style></abstract></record></records></xml>