“…Second, the presence of steam promotes hydrogen‐generating reactions (Table 5, reactions 6–8), thus the energy contained in resulting syngas can be even higher than that of the feedstock. Reactions of dry reforming and Boudouard (Table 5, reactions 12 and 13) can be promoted by the addition of carbon dioxide to the oxidizing media (I. I. Ahmed & Gupta, 2012; Reddy, 2016; A. Singh et al, 2019). The main advantage of CO 2 assisted gasification is the fact that not only solid waste but also some carbon dioxide is consumed during the waste management operation and transformed to valuable CO (Chan et al, 2021; Policella et al, 2019; Z. Wang, Burra, et al, 2019; Z. Wang, Burra, Zhang, Li, Policella, et al, 2020; L. Wang, Zhang, Li, Pérez‐Fortes, Lin, et al, 2020).…”