Chemical modification with aldehydes on the reduction of toxic PAHs derived from low temperature coal tar pitch

Low temperature coal tar pitch (LTCTP) and a model compound of pyrene were modified by formaldehyde (F), benzaldehyde (B) and furfural (K). The effects of the types and amounts of modifiers, the amount of catalyst, the reaction time and reaction temperature on the release of toxic polycyclic aromatic hydrocarbons (TPAHs) during the thermochemical degradation of LTCTP were investigated. The structures of modified LTCTPs were confirmed by FTIR,...