Journal
ENERGY
Volume 216, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.energy.2020.119285
Keywords
Biomass tar; Catalytic cracking; Ni nanoparticles; Carbon nanofiber
Categories
Funding
- National Natural Science Foundation of China [51906110]
- National Key Research & Development Program of China [2019YFD1100602]
- Natural Science Foundation of Jiangsu province, China [BK20190465]
- China Postdoctoral Science Foundation [2019M650097, 2020T130096]
- Postgraduate Research & Practice Innovation Program of Jiangsu Province [SJCX20_0123]
Ask authors/readers for more resources
The study synthesized novel Ni nanoparticles embedded carbon nanofiber/porous carbon catalysts for catalytic cracking of biomass tar, which exhibited favorable catalytic activity and stability. The catalyst showed a good activity-structure relationship, effectively inhibiting coke deposition and sintering of metallic Ni.
The major obstacles for catalytic cracking of biomass tar have been known as the low tar removal efficiency and catalyst deactivation. In view of this, the novel Ni nanoparticles embedded carbon nanofiber/porous carbon catalysts were synthesized by the method of hydrothermal treatment combined with carbothermal reduction. The properties of catalysts were evaluated by characterization of N-2 adsorption-desorption, SEM, XRD, TEM, H-2-TPRand Raman, meanwhile the evolutionary mechanism of catalysts was also proposed. The tar catalytic cracking tests indicated that the Ni-0.30@CF/PCs exhibited the favorable catalytic activity with the high tar conversion efficiency (94.78%) as well as the better catalytic stability at the catalytic cracking temperature of 700 degrees C compared to other catalysts. In the case of Ni-0.30@CF/PCs, the carbon nanofiber/porous carbon composites with hierarchical micro-mesoporous structure and high graphitization degree as well as the Ni nanoparticles embedded in catalyst support with the strong metal-support interaction exhibited the favorable activity-structure relationship. In addition, the Ni-0.30@CF/PCs catalyst also presented the high tar conversion efficiency of 93.31% after 10 cycles, which was due to the high resistance towards coke deposition and sintering of metallic Ni covered by graphite layer from the carbothermal reduction process. (C) 2020 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available