36.XPSを用いる石炭の鉄触媒脱窒素に関する研究

抄録

The iron catalyst promotes more efficiently the nitrogen removal of brown coal during inert pyrolysis. The Fe 2p3/2 XPS spectra show that the iron on brown coal char is more highly dispersed and in closer contact with the char substrate. The N 1s spectra suggest that pyrrolic nitrogen can be removed readily, compared with pyridinic nitrogen. The mechanism of the present nitrogen removal is discussed in terms of iron dissolution in the char phase and subsequent formation of interstitial iron nitrides.