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Highly abrasion and coking-resistance core-shell catalyst for hydrogen-rich syngas production from waste plastics in a two-staged fluidized bed reactor
- Source :
- Applied Catalysis A: General. 612:117989
- Publication Year :
- 2021
- Publisher :
- Elsevier BV, 2021.
-
Abstract
- The thermochemical treatment of waste plastics to produce H2-rich syngas is a promising technique for both waste management and the regeneration of valuable energy resources. In this paper, we report the synthesis of Ni@CeO2 core–shell catalyst with different shell thicknesses. The H2 production ability of the Ni@CeO2 core–shell catalysts was tested and compared to that of the supported Ni/CeO2 catalyst, and it was determined that the H2 yield of the Ni@CeO2 core–shell catalysts was significantly higher than that of the supported Ni/CeO2 catalyst. Owing to the hollow space between the core and shell providing a reacting space for heterogeneous catalysis, the amount of H2 obtained employing the Ni@CeO2-0.5 catalyst, which was obtained using 0.5 mmol cerium nitrate, was the highest of all analyzed Ni@CeO2 catalysts in this study. The optimal H2 production rate of 730.6 mmol/(h g was obtained at 700 °C when the equivalence ratio (ER) was 0.1.
- Subjects :
- Hydrogen
010405 organic chemistry
Chemistry
Abrasion (mechanical)
Process Chemistry and Technology
chemistry.chemical_element
010402 general chemistry
Heterogeneous catalysis
01 natural sciences
Catalysis
0104 chemical sciences
Cerium nitrate
chemistry.chemical_compound
Chemical engineering
Fluidized bed
Yield (chemistry)
Syngas
Subjects
Details
- ISSN :
- 0926860X
- Volume :
- 612
- Database :
- OpenAIRE
- Journal :
- Applied Catalysis A: General
- Accession number :
- edsair.doi...........46c0a44249788e316c94e708c2be9058