“…It was found that THL is a residue containing approximately 20%-30% of polysaccharides (mainly cellulose) embedded into hydrolysis lignin ("cellolignin"), which is more condensed than the native lignin (Chudakov 1972;Blažej and Košic 1993). In the literature, various applications of THL are described, such as pyrolysis and gasification (Domburg 1982;Carrott and Carrott 2007;Kulikov et al 2012), as a biofuel (Nowakowski et al 2010), aminated organic fertilizer (Chudakov 1972;Forostyan et al 1987), adsorbents (Podterob et al 2004;Carrott and Carrott 2007;Liang et al 2013), nitrolignin and chlorolignin (Chudakov 1972), new polymeric materials (Sazanov 2009;Zhou et al 2013), polymer cathode materials (Gnedenkov et al 2013), and additives for oil bituminous compositions (Schiling 2000). However, the aforementioned research trends were not applied in a large scale in industrial practice (Vishtal and Kraslawski 2011;Rabinovich 2014).…”