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Hydrodeoxygenation of p -Cresol over Pt/Al 2 O 3 Catalyst Promoted by ZrO 2 , CeO 2 , and CeO 2 –ZrO 2

Journal Article · · Industrial and Engineering Chemistry Research
 [1];  [2];  [2];  [2];  [2];  [3]
  1. Xiangtan Univ. (China). School of Chemical Engineering; Washington State Univ., Pullman, WA (United States). Voiland School of Chemical Engineering and Bioengineering
  2. Xiangtan Univ. (China). School of Chemical Engineering
  3. Washington State Univ., Pullman, WA (United States). Voiland School of Chemical Engineering and Bioengineering; Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
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ZrO2-Al2O3 and CeO2-Al2O3 were prepared by a co-precipitation method and selected as supports for Pt catalysts. The effects of CeO2 and ZrO2 on the surface area and Brønsted acidity of Pt/Al2O3 were studied. In the hydrodeoxygenation (HDO) of p-cresol, the addition of ZrO2 promoted the direct deoxygenation activity on Pt/ZrOO2-Al2O3 via Caromatic-O bond scission without benzene ring saturation. Pt/CeOO2-Al2O3 exhibited higher deoxygenation extent than Pt/Al2O3 due to the fact that Brønsted acid sites on the catalyst surface favored the adsorption of p-cresol. With the advantages of CeO2 and ZrO2 taken into consideration, CeO2-ZrOO2-Al2O3 was prepared, leading to the highest HDO activity of Pt/CeO2-ZrOO2-Al2O3. The deoxygenation extent for Pt/CeO2-ZrOO2-Al2O3 was 48.4% and 14.5% higher than that for Pt/ZrO2O2-Al2O3 and Pt/CeOO2-Al2O3, respectively.

Research Organization:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1333447
Report Number(s):
PNNL-SA--119534; KC0302010
Journal Information:
Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 28 Vol. 55; ISSN 0888-5885
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY