Supporting Information Study on the Effect of Adsorption Temperature on Elemental Mercury Removal Performance of Iron-Based Modified Biochar

(College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan, 030024, P. R. China) 1. Pyrolysis Characteristics. As shown in Fig. SI1, the pyrolysis curves of modified and unmodified WS are similar.SI1 The pyrolysis process can be divided into three stages: the dehydration and preheating stage (room temperature-T1), the main pyrolysis stage (T1-T3), and the slow carbonization stage (T3-final temperature). The relevant pyrolysis parameters are shown in Table SI1. A comprehensive index of pyrolysis characteristics (D) was proposed to characterize the degree of difficulty for volatile devolatilization from biomass, which was solved by Eq SI1. The larger the D value was, the more likely the pyrolysis occurred. As shown, Fe-Cu/BC was more easily to pyrolysis.