Fig. S1. Pyrolysis unit used to produce the biochars (reprinted from the SI of Zielinska & Oleszczuk (2015), ref. 16 in main text). The diameter of the quartz tube is 56 mm. Fig. S2. Van Krevelen plot of elemental ratios for biochars formed from various biomass sources (BCW biochar from willow, BCM biochar from miscanthus, BCS biochar from – – – wheat straw, BCSH biochar from in different pyrolysis temperatures Sida hermaphrodita) – (blue 500 °C, green 600 °C, black 700 °C) in comparison to organic materials such as – – – cellulose, lignin, brown-, bituminous- and stone coal. The lines represent the dehydration, demetylation and decarboxylation reactions.
Fig. S1. Pyrolysis unit used to produce the biochars (reprinted from the SI of Zielinska & Oleszczuk (2015), ref. 16 in main text). The diameter of the quartz tube is 56 mm. Fig. S2. Van Krevelen plot of elemental ratios for biochars formed from various biomass sources (BCW – biochar from willow, BCM – biochar from miscanthus, BCS – biochar from wheat straw, BCSH – biochar from Sida hermaphrodita) in different pyrolysis temperatures (blue – 500 °C, green – 600 °C, black – 700 °C) in comparison to organic materials such as cellulose, lignin, brown-, bituminous- and stone coal. The lines represent the dehydration, demetylation and decarboxylation reactions.
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