Combustion kinetics and emission characteristics of polycyclic aromatic hydrocarbons from polylactic acid combustion.
This study investigates the combustion kinetics and emission factors of 16 U.S. Environmental Protection Agency priority polycyclic aromatic hydrocarbons (PAHs) in polylactic acid (PLA) combustion. Experimentally, two reactions are involved in the PLA combustion process that potentially result in the release of lactide, acetaldehyde, and n-hexaldehyde. The products may continuously be oxidized to form carbon dioxide (CO2) and some PAHs produced because of incomplete combustion. The analytical results indicate that the emission factors for PAHs are in the range of not detectable to 98.04 microg/g. The emission factors are much lower than those of poly(ethylene terephalate) (PET) and other combustion of plastics. Results from this work suggest that combustion is a good choice for waste PLA disposal.
Chien
Yi-Chi
YC
Department of Environmental Engineering and Science, Fooyin University, Kaohsiung, Taiwan, Republic of China. PL036@mail.fy.edu.tw
Liang
Chenju
C
Liu
Shou-Heng
SH
Yang
Shu-Hua
SH
D000393:Air Pollutants / Q000737:chemistry; D000397:Air Pollution; D008401:Gas Chromatography-Mass Spectrometry; D017745:Incineration / Q000295:instrumentation; D019344:Lactic Acid / Q000737:chemistry*; D011084:Polycyclic Aromatic Hydrocarbons / Q000737:chemistry*; D011091:Polyesters; D011108:Polymers / Q000737:chemistry*; D053719:Tandem Mass Spectrometry
D000393:Air Pollutants; D011084:Polycyclic Aromatic Hydrocarbons; D011091:Polyesters; D011108:Polymers; D019344:Lactic Acid; C033616:poly(lactide)