P-03　EDXRF装置を用いた木質ペレット燃料中の灰形成元素および灰分量の簡易・迅速定量

抄録

In this study, the simple and rapid quantification of the ash forming elements (Na₂O, MgO, Al₂O₃, SiO₂, P₂O₅, SO₃, K₂O, CaO, TiO₂, MnO, and Fe₂O₃) and ash content in wood pellet fuel was developed by energy dispersive X-ray fluorescence (EDXRF) spectrometry using loose powdered samples. The sensitivity of EDXRF was improved by using vacuum conditions in the sample chamber of the analyzer and preparing wood pellet samples by milling for 30 minutes using a stainless steel ball-mill. The EDXRF method with loose powdered samples provides results that are comparable to those obtained using the traditional chemical analysis methods and the ashing method, and it reduces the analysis time by 75%.