“…Biomass was converted into bio-oil, bio-char and biogas by using pyrolysis technology. Compared to other reactors, fluidized bed reactor given the most potential in converting biomass into bio-oil due to rapid devolatilization, high heating rate (Amutio et al, 2013;Chang et al, 2013;Heidari et al, 2014). The bio-oil was not only used as an alternative to petroleum, but included some high-valuable chemicals such as 5-hydroxymethyl furfural (HMF) (Torri et al, 2010), levoglucose (LG) (Dobele et al, 2005), levoglucosenone (LGO) (Shen et al, 2010) and 4-vinyl phenol (4-VP) (Qu et al, 2013).…”