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Worada Moonsrikaew. Deoxygenation of pyrolysis vapors from palm fruit cake over NiMoy-Al2O3CeO2, ZrO2, TiO2, ZSM-5 and CaO Catalysts. Doctoral Degraee(Chemical Engineering). Kasetsart University. Office of the University Library. : Kasetsart University, 2021.
Deoxygenation of pyrolysis vapors from palm fruit cake over NiMoy-Al2O3CeO2, ZrO2, TiO2, ZSM-5 and CaO Catalysts
Name: Worada Moonsrikaew
Classification :.LCCS: TP339
LCSH:
Biomass
LCSH:
Biomass energy
LCSH:
Palm oil
LCSH:
Pyrolysis
LCSH:
Catalysts
LCSH:
Deoxygenation
Abstract:
Deoxygenation of pyrolysis vapors from palm fruit cake was first investigated by using Ni/γ-Al2O3, Mo/γ-Al2O3, and NiMo/γ-Al2O3 prepared by wet impregnation method, with NiMo/γ-Al2O3 showing the highest degree of deoxygenation (DOD) activity. Subsequently, CeO2, TiO2, ZrO2, CaO and ZSM-5 in powder form were simply mixed with NiMo/Al2O3 and the effects of the catalysts on upgrading of pyrolysis vapors from palm fruit cake at 450°C under N2 atmosphere in a semi-batch process were investigated. The oil products were analysed for CHNO elements, chemical compositions, and higher heating values (HHV) using an elemental analyzer, a gas chromatograph coupled to a mass spectrometer, and a bomb calorimeter, respectively. Oil product from NiMo/γ-Al2O3/ZrO2 showed the highest organic phase yield, DOD, and HHV. NiMo/γ-Al2O3/CeO2 provided high acid but low phenols in the liquid products, while NiMo/γ-Al2O3/TiO2 provided high amounts of aromatics and hydrocarbons comparable to those obtained using NiMo/γ-Al2O3/ZrO2. DOD and HHV values of oils from NiMo/γ-Al2O3/ZSM-5 and NiMo/γ-Al2O3/ ZSM-5/metal oxides (CeO2, or TiO2, or ZrO2) were much lower than those from NiMo/γ-Al2O3. The zeolite catalyst mixtures were inferior to NiMo/γ-Al2O3/ZrO2 for providing higher acid and lower aromatics and hydrocarbons. When ZSM-5 was replaced by CaO, NiMo/γ-Al2O3/CaO/ZrO2 was superior to NiMo/γ-Al2O3/ ZSM-5/ZrO2 for providing higher oxygen removal, higher yields of aromatics and hydrocarbons, and lower N-containing compounds. Finally, hydrodeoxygenation of crude bio-oils from palm fruit cake in an autoclave reactor at 400°C using NiMo/ γ-Al2O3/ZrO2 and NiMo/γ-Al2O3/ZrO2/CeO2/TiO2/CaO catalysts under hydrogen pressure of 5 bar for 8 and 16 hours were investigated, and the NiMo/γ-Al2O3/ ZrO2/CeO2/TiO2/CaO catalyst showed better results. Hydrodeoxygenation of the pyrolysis vapor by using waste plastics was compared to the use of hydrogen pressure. Copyrolysis of biomass and waste plastics (PP and PS) showed higher liquid yield, organic phase, %DOD, hydrogen content and HHV.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Apinya Duangchan
Role:
Thesis Advisor
Name: Attasak Jaree
Role:
Thesis CO-Advisor
Created:
2021
Modified:
2568-07-19
Issued:
2025-07-14
วิทยานิพนธ์/Thesis
application/pdf
URL: https://www.lib.ku.ac.th/KUthesis/2564/worada-moo-all.pdf
CallNumber:
TP339 .W67
eng
DegreeName: Doctor of Philosophy
Level: Doctoral Degraee
Descipline: Chemical Engineering
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.022476 วินาที
Worada Moonsrikaew
| Title | Contributor | Type |
|---|---|---|
| Deoxygenation of pyrolysis vapors from palm fruit cake over NiMoy-Al2O3CeO2, ZrO2, TiO2, ZSM-5 and CaO Catalysts
มหาวิทยาลัยเกษตรศาสตร์ Worada Moonsrikaew | Apinya Duangchan | วิทยานิพนธ์/Thesis |
Apinya Duangchan
Attasak Jaree