期刊
WASTE AND BIOMASS VALORIZATION
卷 12, 期 12, 页码 6513-6521出版社
SPRINGER
DOI: 10.1007/s12649-021-01462-6
关键词
NiO concentration; Quantification classified species; Spent catalysts
资金
- Universita degli Studi di Milano within the CRUI-CARE Agreement
- Italian Ministry of Education (MIUR) through the Project -PRIN2017 -MINERAL REACTIVITY, A KEY TO UNDERSTAND LARGE-SCALE PROCESSES
This paper presents a quick method for quantifying nickel species in spent FFC catalysts, first in a matrix of fresh zeolite Y and then in a complex matrix similar to that of a real spent catalyst. The method is carefully validated with known quantities of NiO before analyzing a set of real spent catalysts representing a 12-month period.
The paper presents a quick method for the quantification of nickel species in spent FFC catalysts; the quantification of known quantities NiO and NiAl2O4 is first done in a matrix of fresh zeolite Y, and then in a complex matrix, similar to the one of a real spent catalyst. The method is carefully checked and the errors in the quantification are critically evaluated. After the validation of the method with known quantities of NiO, well below the law limit for direct re-use, a set of real spent catalysts (representative of a period of 12 months) is analysed.
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