EN norms set the methods for determining the ash and volatile content in biomass. These establish the use of a muffle to heat the samples at temperatures of 550ºC and 900ºC respectively, with a minimum analysis time of 4h as standard method. The objective of this work was to reduce significantly the analysis times, making very short heating periods using a thermogravimetric scale (TGA), and to apply an equation to the residual weight to obtain the weight of ash, volatiles and fixed carbon in biomass samples. We analyzed the factors: the temperature ramp, atmosphere and airflow in the determination. In this work new validated methods were developed with an analysis time of 10-20 min.

EN规范设置了确定生物质中灰分和挥发物含量的方法。这些方法可以使用马弗炉分别在550ºC和900ºC的温度下加热样品，标准方法的最短分析时间为4h。这项工作的目的是显着减少分析时间，使用热重秤（TGA）缩短加热时间，并对剩余重量应用方程式，以获取生物质样品中的灰分，挥发物和固定碳的重量。我们分析了确定因素：温度上升，大气和气流。在这项工作中，开发了新的经过验证的方法，分析时间为10-20分钟。