Distribution of trace elements in coal and coal derived product by mild pyrolysis

The distribution trace elements of the coals during mild pyrolysis process was studied. Atomic absorption spectrometry with Zeeman correction (AAS) and inductively coupled plasma spectrometry (ICP) were used for determination of several trace and major elements in coal and product of coal produced by mild pyrolysis process. The mineral matter (MM) of coals and solid products of this process have been removed from organic matter by cool oxygen plasma oxidation (COPO).