| Title |
CO 2-assisted fast pyrolysis of palm kernel shells over a Ni - Ce/CN catalyst for the selective production of bio-oil |
| ID_Doc |
13620 |
| Authors |
Pham, LKH; Kongparakul, S; Guan, GQ; Chanlek, N; Vo, DVN; Cuong, NV; Watanabe, A; Samart, C |
| Title |
CO 2-assisted fast pyrolysis of palm kernel shells over a Ni - Ce/CN catalyst for the selective production of bio-oil |
| Year |
2024 |
| Published |
|
| DOI |
10.1016/j.fuel.2024.132038 |
| Abstract |
Catalytic fast pyrolysis is one of the most promising techniques for the production of bio-oils. Generally, pyrolysis is carried out in an inert atmosphere; however, reactive catalytic pyrolysis has emerged as an alternative technique for achieving high catalytic efficiency. Herein, NiCe/CN catalysts with different Ni:Ce ratios were developed, and their catalytic efficiency in the catalytic fast pyrolysis of palm kernel shells in a CO 2 atmosphere was evaluated. The effects of reaction conditions, including the reaction temperature (400 -600 degrees C) and ratio of Ni:Ce (10:0, 10:1, 10:3, 10:5, and 10:10), on the product yields were studied using in situ and ex situ analyses. NiCe/CN50 exhibited enhanced oxygen removal efficiency owing to the presence of oxygen vacancies in CeO x . In addition, the acidic site of the catalyst promoted the highly selective demethoxylation of alkylphenols. The presence of Ce promoted the Boudouard reaction (C + CO 2 -> 2CO), which reduced coke deposition on the spent catalyst. Our results indicate that the NiCe/CN50 catalyst exhibited good catalytic efficiency, achieving the highly selective production of alkylphenols and acetic acid and low deactivation. Therefore, NiCe/CN50 can be used as an alternative catalyst for phenol production from biomass via catalytic fast pyrolysis. |
| Author Keywords |
Pyrolysis; N-doped activated carbon; Biomass; CO2 utilization; Ni catalyst |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:001248202100001 |
| WoS Category |
Energy & Fuels; Engineering, Chemical |
| Research Area |
Energy & Fuels; Engineering |
| PDF |
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