화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Journal of Industrial and Engineering Chemistry, Vol.83, 189-199, March, 2020
DOI10.1016/j.jiec.2019.11.027  Export Citation
Comparison of activity and stability of supported Ni2P and Pt catalysts in the hydroprocessing of palm oil into normal paraffins
Hwiram Jeong1, Mi Shin1, Byunghun Jeong2, Jung Hee Jang3, Gi Bo Han3, and Young-Woong Suh1, 4, †
  • 1Department of Chemical Engineering, Hanyang University, Seoul 04763, Republic of Korea
  • 2Agency for Defense Development, Daejeon 34186, Republic of Korea
  • 3Plant Engineering Center, Institute for Advanced Engineering, Gyeonggi 17180, Republic of Korea
  • 4Research Institute of Industrial Science, Hanyang University, Seoul 04763, Republic of Korea
E-mail:
The hydroprocessing of vegetable oils into normal paraffins is a very promising method for producing green diesel and bio-jet fuels. However, detailed variations in the product distribution and catalyst deactivation have been rarely reported. In this study, the conversion of commercial palm oil over supported Pt and Ni2P catalysts is investigated. Activity tests conducted at 380 °C and 400 °C indicate that 10 wt.% Ni2P/SiO2 and 1 wt.% Pt/Al2O3 are more active and stable among the tested catalysts. An additional test at 360 °C revealed the superior hydroprocessing activity of the former catalyst. The major contributors to the activity variation of 1 wt.% Pt/Al2O3 are Pt sintering and a carbon deposit, resulting in a decrease in the Pt sites favoring decarbonylation and decarboxylation pathways. In contrast, the catalytic performance of 10 wt.% Ni2P/SiO2 is associated with an extremely low formation of carbon deposits and the Brønsted acidity responsible for the hydrodeoxygenation pathway, despite the transformation of Ni2P particles. Consequently, Ni2P/SiO2 turns out to be the most excellent among the tested catalysts for the hydroprocessing of palm oil.
Keywords:Palm oil;Hydroprocessing;Supported Pt catalysts;Supported Ni2P catalysts
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