%0 Journal Article
%@ 19961073
%A Plaola, Y.
%A Leangsiri, W.
%A Pongsiriyakul, K.
%A Kiatkittipong, W.
%A Srifa, A.
%A Lim, J.-W.
%A Reubroycharoen, P.
%A Kiatkittipong, K.
%A Eiad-Ua, A.
%A Assabumrungrat, S.
%D 2022
%F scholars:17096
%I MDPI
%J Energies
%K Alumina; Binary alloys; Catalyst activity; Diesel engines; Fatty acids; Feedstocks; Hydrogenation; Layered semiconductors; Molybdenum compounds; Palm oil; Silica; Titanium dioxide, Bio-hydrogenated diesel; Catalytic hydrotreating; Hydroprocessing; Nimo sulfided catalyst; Palm olein; Pongamia pinnata; Pongamia pinnata oil; Supports effects; ]+ catalyst; γ Al2O3, Aluminum oxide
%N 4
%R 10.3390/en15041547
%T Catalytic Hydrotreating of Crude Pongamia pinnata Oil to Bio-Hydrogenated Diesel over Sulfided NiMo Catalyst
%U https://khub.utp.edu.my/scholars/17096/
%V 15
%X This work studied the catalytic activity and stability of Ni-MoS2 supported on γ-Al2O3, SiO2, and TiO2 toward deoxygenation of different feedstocks, i.e., crude Pongamia pinnata oil (PPO) and refined palm olein (RPO). PPO was used as a renewable feedstock for bio-hydrogenated diesel production via catalytic hydrotreating under a temperature of 330 °C, H2 pressure of 50 bar, WHSV of 1.5 h�1, and H2/oil (v/v) of 1000 cm3/cm3 under continuous operation. The oil yield from a Soxhlet extraction of PPO was up to 26 wt. on a dry basis, mainly consisting of C18 fatty acids. The catalytic activity in terms of conversion and diesel yield was in the same trend as increasing in the order of NiMo/γ-Al2O3 > NiMo/TiO2 > NiMo/SiO2. The hydrodeoxygenation (HDO) activity was more favorable over the sulfided NiMo supported on γ-Al2O3 and TiO2, while a high DCO was observed over the sulfided NiMo/SiO2 catalyst, which related to the properties of the support material and the intensity of metal�support interaction. The deactivation of NiMo/SiO2 and NiMo/TiO2 occurred in a short period, due to the phosphorus and alkali impurities in PPO which were not found in the case of RPO. NiMo/γ-Al2O3 exhibited the high resistance of impure feedstock with excellent stabil-ity. This indicates that the catalytic performance is influenced by the purity of the feedstock as well as the characteristics of the catalysts. © 2022 by the authors. Licensee MDPI, Basel, Switzerland.
%Z cited By 6