期刊
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
卷 155, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jaap.2021.105044
关键词
Biofuel; Diesel; Hydrodeoxygenation; Oleic acid; Zeolite beta
资金
- Fundamental Research Grant Scheme [FRGS-MRSA/1/2019/STG01/UPM/01/30]
- Galakan Penyelidik Muda (GGPM) [GGPM-2020-015]
- International Scientific Partnership Programme ISPP at King Saud University [ISPP-142]
- Geran Putra Berimpak (GPB) [UPM/800-715 3/3/1/GPB/2018/9658700]
- Geran Putra Berimpak [GBP/2019/967450]
This study found that La(10)zeo(90) catalyst exhibited excellent activity and selectivity in the hydrodeoxygenation of oleic acid, mainly attributed to the synergistic interaction between La-Si-Al, abundant weak+ medium acid sites, and excellent textural properties.
In this study, various metal-modified zeolite beta-based catalysts such as La(10)zeo(90), Co(10)zeo(90), Fe(10)zeo(90), Mg(10)zeo(90), Mn(10)zeo(90) and Zn(10)zeo(90) were investigated in the hydrodeoxygenation (HDO) of oleic acid (OA) to produce renewable diesel. The La(10)zeo(90) catalyst showed a conversion of OA up to 99 % with 83 % C15 and C17 selectivity after the reaction at 350 ?C for 2 h under 4 MPa H2 pressure. The superior activity of La(10)zeo(90) was attributed to the synergistic interaction between La-Si-Al, a sufficient amount of weak+ medium acid sites and excellent textural properties (large pore diameter). Larger pore diameter of La(10)zeo(90) is highly desirable as it will generate greater diffusion of bulky molecules, thereby improving the accessibility of the reactant and hence excellent catalytic activity. The vacuum distillation was used to purify the crude liquid product (CLP), producing high-quality diesel fractions mainly comprising C14, C15, and C17 fractions.
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