Distribution characteristics and formation mechanisms of PCDD/Fs during pyrolysis and gasification of municipal solid waste.

Pyrolysis gasification (PG) technology is a promising waste disposal technology, which is more efficient and cleaner compared with incineration technology. However, few work has studied the generation characteristics of polychlorinated dibenzo-p-dioxin and furans (PCDD/Fs) and the influencing factors in the PG process. This study investigates the effects of air ratio (AR) and gasification temperature on the generation and distribution of PCDD/Fs during the PG process of municipal solid waste (MSW).

Preparation and properties of thermoplastic poly(caprolactone) composites containing high amount of esterified starch without plasticizer.

Based on stearyl chloride and native starch, esterified starch were prepared and the chemical structure was characterized by (1)H NMR and FTIR. It was found that stearyl chloride was an efficient agent to fabricate esterified starch with high degree of substitution (DS). During the melt blending of esterified starch (80 wt%) and poly(caprolactone) (PCL, 20 wt%), it was shown the torque of PCL/esterified starch was much lower than that of PCL/native starch without any plasticizer, and further decreased with increasing DS.