Thermal Degradation of PE Mixed with PET

The thermal degradation of PE mixed with polyethylene terephthalate (PET) and PE only degradation were compared. The presence of small amounts of PET is quite possible with the mixture of PE, PP, and PS, which is generally considered as municipal waste plastics. The yields of product gases, liquids and residues from the degradation of PET and the mixtures of PET and PE in ratios of 1 9 and 2 8 are shown in Table 18.4. Unlike PE or PVC, no liquid products could be obtained from the degradation of PET. The decomposition of PET proceeds with the production of a large amount of pale yellow 

4 LABORATORY EVALUATION OF VARIOUS CARBON COMPOSITES AS HCI SORBENTS 

Calcium-, iron- and potassium-based carbon composites were evalnated for the HCI sorption capacity for use in the dehalogenation process with PVC mixed plastics degradation. It is 

The theoretical sorption capacities of three sorbents calculated based on stoichiometric equations and experimental sorption capacities calculated taking the HCI sorbed before breakthrough are presented in Table 18.5. Theoretical adsorption capacities of Ca-C, Fe-C, and K2CO3-C were 0.73 g/g, 0.95 g/g, 0.53 g HCl/g sorbent respectively. Observed sorption capacities of three sorbents (Table 18.5) until steady state level shows that the Ca-C (0.48) has higher sorption capacity per gram of sorbent than Fe-C (0.23) and K2CO3-C (0.17 g/g). Table 18.5 shows that the sorption capacity of Ca-C until the breakthrough 

Sorbent (A) theoretical (B) amount of HCl Theoretical Observed adsorption Adsorption time adsorption capacity adsorbed before the consumed capacity capacity until continued until [HCl(g)]/[ads(g)] breakthrough (B)/(A)100 [%] steady state steady state, h [HCl(g)]/[ads(g)] [HCl(g)]/[ads(g)] 

---