TY - JOUR
T1 - Relation between mechanochemical dechlorination rate of polyvinyl chloride and mill power consumption
AU - Tongamp, William
AU - Kano, Junya
AU - Suzuta, Yuichiro
AU - Saito, Fumio
AU - Themelis, Nickolas J.
N1 - Funding Information:
Acknowledgment This work was supported by the Japan Society for the Promotion of Science with a Grant-in-Aid for Scientific Research (KAKENHI) and by the Ministry of Education, Culture, Sports, Science and Technology of Japan.
PY - 2009/1
Y1 - 2009/1
N2 - A sample of polyvinyl chloride (PVC) powder was milled with CaO powder in a planetary mill for various mill operational parameters. The milled product consisted of dechlorinated hydrocarbon and water-soluble CaOHCl. The dechlorination rate of PVC was determined by the concentration of Cl- ions measured in solution after dispersing the milled product in water. To evaluate the power consumption during PVC dechlorination, the mill power consumption was measured during each experimental run. In addition, media motion during planetary milling was simulated using the discrete element method (DEM), enabling calculation of the mill power consumption. The power consumption calculated by the DEM simulation compared well with the power consumption measured experimentally. The dechlorination rate correlated well with the specific mill power consumption, regardless of the sample weight. The dechlorination rate of PVC when milled with oyster shells (CaCO3) was observed to be faster than that of the PVC/CaO system, and oyster shells could be used as a reactant for the treatment of PVC wastes. This work should be useful for the design of a reactor for the dechlorination of PVC.
AB - A sample of polyvinyl chloride (PVC) powder was milled with CaO powder in a planetary mill for various mill operational parameters. The milled product consisted of dechlorinated hydrocarbon and water-soluble CaOHCl. The dechlorination rate of PVC was determined by the concentration of Cl- ions measured in solution after dispersing the milled product in water. To evaluate the power consumption during PVC dechlorination, the mill power consumption was measured during each experimental run. In addition, media motion during planetary milling was simulated using the discrete element method (DEM), enabling calculation of the mill power consumption. The power consumption calculated by the DEM simulation compared well with the power consumption measured experimentally. The dechlorination rate correlated well with the specific mill power consumption, regardless of the sample weight. The dechlorination rate of PVC when milled with oyster shells (CaCO3) was observed to be faster than that of the PVC/CaO system, and oyster shells could be used as a reactant for the treatment of PVC wastes. This work should be useful for the design of a reactor for the dechlorination of PVC.
KW - DEM simulation
KW - Mechanochemical dechlorination
KW - Milling
KW - Polyvinyl chloride
KW - Power consumption
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U2 - 10.1007/s10163-008-0216-2
DO - 10.1007/s10163-008-0216-2
M3 - Article
AN - SCOPUS:60349120458
VL - 11
SP - 32
EP - 37
JO - Journal of Material Cycles and Waste Management
JF - Journal of Material Cycles and Waste Management
SN - 1438-4957
IS - 1
ER -