Figure 4 | Scientific Reports

Figure 4

From: Facemasks and ferrous metallurgy: improving gasification reactivity of low-volatile coals using waste COVID-19 facemasks for ironmaking application

Figure 4

SEM images of samples of carbon and carbon/facemask melt blends. (a) GCI coal, (b) GCI coal with 20 wt.% facemask plastic, (c) charcoal, and (d) charcoal with 20 wt% added facemask plastic. (e) GCI coal after pyrolysis to 500 °C, (f) GCI coal with 20 wt.% facemask plastic after pyrolysis to 500 °C, (g) charcoal after pyrolysis to 500 °C, and (h) charcoal with 20 wt% added facemask plastic after pyrolysis to 500 °C.

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