TY - JOUR
T1 - Catalytic hydrothermal liquefaction of Tetra Pak with Ni-xCe/CNTs
AU - Wang, Yuzhen
AU - Liu, Zhuan
AU - Wang, Ying
AU - Fang, Changqing
AU - Xu, Donghai
AU - Liu, Liang
AU - Zheng, Xing
N1 - Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/12/15
Y1 - 2022/12/15
N2 - A series of Ni-xCe/CNTs were synthesized by incipient wetness impregnation method and characterized by XRD, XPS, and H2-TPR. Their catalytic performances were systematically evaluated in hydrothermal liquefaction of Tetra Pak. The effects of Ni:Ce ratio (10:0–10:7) in the bio-oil yield, boiling point, elemental composition, higher heating value (HHV) and chemical components of the bio-oil were investigated, and the solid residue and the used catalysts were also analyzed by TG, FT-IR and XRD, SEM, respectively. Maximum bio-oil yield of 20.75 wt% was obtained at Ni:Ce of 10:5. The minimum crystallite size of CeO2 and the highest Ce3+ concentration, respecting the highest oxygen vacancies was obtained for Ni–5Ce/CNTs by XRD, and the lowest reduction temperature was also found for Ni–5Ce/CNTs in H2-TPR analysis, indicating the good reducibility. The CeO2 became to accumulate and form bigger clusters when the Ce loading increased to 7 wt%. GC-MS results showed that the hydrocarbons and esters in bio-oils increased with Ce loading, while those of ketones and aldehydes decreased. The possible catalytic reaction pathway was accordingly proposed.
AB - A series of Ni-xCe/CNTs were synthesized by incipient wetness impregnation method and characterized by XRD, XPS, and H2-TPR. Their catalytic performances were systematically evaluated in hydrothermal liquefaction of Tetra Pak. The effects of Ni:Ce ratio (10:0–10:7) in the bio-oil yield, boiling point, elemental composition, higher heating value (HHV) and chemical components of the bio-oil were investigated, and the solid residue and the used catalysts were also analyzed by TG, FT-IR and XRD, SEM, respectively. Maximum bio-oil yield of 20.75 wt% was obtained at Ni:Ce of 10:5. The minimum crystallite size of CeO2 and the highest Ce3+ concentration, respecting the highest oxygen vacancies was obtained for Ni–5Ce/CNTs by XRD, and the lowest reduction temperature was also found for Ni–5Ce/CNTs in H2-TPR analysis, indicating the good reducibility. The CeO2 became to accumulate and form bigger clusters when the Ce loading increased to 7 wt%. GC-MS results showed that the hydrocarbons and esters in bio-oils increased with Ce loading, while those of ketones and aldehydes decreased. The possible catalytic reaction pathway was accordingly proposed.
KW - Bio-oil
KW - Hydrothermal liquefaction
KW - Ni-xCe/CNTs
KW - Waste tetra pak
UR - https://www.scopus.com/pages/publications/85137642913
U2 - 10.1016/j.energy.2022.125302
DO - 10.1016/j.energy.2022.125302
M3 - 文章
AN - SCOPUS:85137642913
SN - 0360-5442
VL - 261
JO - Energy
JF - Energy
M1 - 125302
ER -
