TY - JOUR
T1 - Low-temperature catalytic upgrading of waste polyolefinic plastics into liquid fuels and waxes
AU - Nakaji, Yosuke
AU - Tamura, Masazumi
AU - Miyaoka, Shuhei
AU - Kumagai, Shogo
AU - Tanji, Mifumi
AU - Nakagawa, Yoshinao
AU - Yoshioka, Toshiaki
AU - Tomishige, Keiichi
N1 - Funding Information:
This work was supported by the Environment Research and Technology Development Fund (3RF-1803) of the Environmental Restoration and Conservation Agency of Japan. We thank Ms. N. Hirai (Technical group, Research Institute for Electronic Science, Hokkaido University) for TEM measurements. We also thank Toyama Kankyo Seibi Co. Ltd. for supply of waste PEs.
Funding Information:
This work was supported by the E nvironment Research and Technology Development Fund ( 3RF-1803 ) of the E nvironmental Restoration and Conservation Agency of Japan. We thank Ms. N. Hirai (Technical group, Research Institute for Electronic Science, Hokkaido University) for TEM measurements. We also thank Toyama Kankyo Seibi Co., Ltd. for supply of waste PEs.
Publisher Copyright:
© 2020 Elsevier B.V.
PY - 2021/5/15
Y1 - 2021/5/15
N2 - A new low-temperature catalytic upgrading of waste polyolefinic plastics to valuable chemicals such as liquid fuels and waxes by a heterogeneous catalyst is presented. CeO2-supported Ru (Ru/CeO2) acted as an effective and reusable heterogeneous catalyst, showing much higher activity than other metal-supported catalysts in hydrogenolysis of low-density polyethylene, and the catalyst worked even under mild reaction conditions such as low temperature of 473 K and low H2 pressure of 2 MPa, providing liquid fuel (C5-C21) and wax (C22-C45) in 77 % and 15 % yields (total 92 % yield), respectively. This catalyst was applicable to hydrogenolysis of various low-density polyethylenes, high-density polyethylene, polypropylene to provide the valuable chemicals (liquid fuel + wax) in high yields (83–90 %). Furthermore, a commercial plastic bag and waste polyethylenes could be transformed to the valuable chemicals in high yields (91 % and 88 % yields).
AB - A new low-temperature catalytic upgrading of waste polyolefinic plastics to valuable chemicals such as liquid fuels and waxes by a heterogeneous catalyst is presented. CeO2-supported Ru (Ru/CeO2) acted as an effective and reusable heterogeneous catalyst, showing much higher activity than other metal-supported catalysts in hydrogenolysis of low-density polyethylene, and the catalyst worked even under mild reaction conditions such as low temperature of 473 K and low H2 pressure of 2 MPa, providing liquid fuel (C5-C21) and wax (C22-C45) in 77 % and 15 % yields (total 92 % yield), respectively. This catalyst was applicable to hydrogenolysis of various low-density polyethylenes, high-density polyethylene, polypropylene to provide the valuable chemicals (liquid fuel + wax) in high yields (83–90 %). Furthermore, a commercial plastic bag and waste polyethylenes could be transformed to the valuable chemicals in high yields (91 % and 88 % yields).
KW - Heterogeneous catalyst
KW - Hydrogenolysis
KW - Liquid fuel
KW - Polyolefin
KW - Waste plastic
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U2 - 10.1016/j.apcatb.2020.119805
DO - 10.1016/j.apcatb.2020.119805
M3 - Article
AN - SCOPUS:85098166537
SN - 0926-3373
VL - 285
JO - Applied Catalysis B: Environmental
JF - Applied Catalysis B: Environmental
M1 - 119805
ER -