Determination of particle-bound polycyclic aromatic hydrocarbons emitted from co-pelletization combustion of lignite and rubber wood sawdust

2nd International Conference on Computational Fluid Dynamics in Research and Industry

力学;计算机科学;工业技术

Kan, R.^1 ; Kaosol, T.^1,4 ; Tekasakul, P.^2,4 ; Tekasakul, S.^3,4

Environmental Engineering Program, Department of Civil Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla Hat Yai

90112, Thailand^1

Department of Mechanical Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla Hat Yai

90112, Thailand^2

Department of Chemistry, Faculty of Science, Prince of Songkla University, Songkhla Hat Yai

90112, Thailand^3

Air Pollution and Heath Effect Research Center, Prince of Songkla University, Songkhla Hat Yai

90110, Thailand^4

关键词: Fluorescence detection;    High molecular weight;    High probability;    Horizontal tube furnaces;    Mass concentration;    Particulate Matter;    Polycyclic aromatic hydrocarbons (PAHS);    Rubber wood sawdust;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/243/1/012045/pdf
DOI  :  10.1088/1757-899X/243/1/012045

来源: IOP

【 摘 要 】

Determination of particle-bound Polycyclic Aromatic Hydrocarbons (PAHs) emitted from co-pelletization combustion of lignite and rubber wood sawdust in a horizontal tube furnace is investigated using High Performance Liquid Chromatography with coupled Diode Array and Fluorescence Detection (HPLC-DAD/FLD). The particle-bound PAHs based on the mass concentration and the toxicity degree are discussed in the different size ranges of the particulate matters from 0.07-11 μm. In the present study, the particle-bound PAHs are likely abundant in the fine particles. More than 70% of toxicity degree of PAHs falls into PM1.1while more than 80% of mass concentration of PAHs falls into PM2.5. The addition of lignite amount in the co-pelletization results in the increasing concentration of either 4-6 aromatic ring PAHs or high molecular weight PAHs. The high contribution of 4-6 aromatic ring PAHs or high molecular weight PAHs in the fine particles should be paid much more attention because of high probability of human carcinogenic. Furthermore, the rubber wood sawdust pellets emit high mass concentration of PAHs whereas the lignite pellets emit high toxicity degree of PAHs. By co-pelletized rubber wood sawdust with lignite (50% lignite pellets) has significant effect to reduce the toxicity degree of PAHs by 70%.