The aim of this work is in fact to carry out a kinetic study of steam gasification of different chars obtained by residual biomass coming from the major agro-industrial activities that are typical of Sicily (Italy). In particular, in this research work the residual chars where obtained from citrus wastes, grape marc, olive residues and Arundo Donax (named as reed in this paper). The latter has been chosen because it grows naturally in the Mediterranean Basin, and it could be considered as a good source of feedstock for the integration with agricultural residues in thermochemical processes. In this study the composition of the inorganic ash forming elements and the char reactivity was compared. Following recent studies, the idea was to compare the reactivity to the K and Ca contents of the chars. It was observed that the Si had an inhibiting effect on the char gasification reactivity, which has been observed in previous studies . This is expected as the Si can form inert silicates. Therefore, it was tested whether the reactivity was proportional to the new defined parameter, named as inorganic composition ratio, ICR = (K+Ca)/Si.
A Kinetic Study of Steam Gasification of Residual Biomass from Sicilian Agro-Industries
PRESTIPINO, MAURO;GALVAGNO, ANTONIO;
2017-01-01
Abstract
The aim of this work is in fact to carry out a kinetic study of steam gasification of different chars obtained by residual biomass coming from the major agro-industrial activities that are typical of Sicily (Italy). In particular, in this research work the residual chars where obtained from citrus wastes, grape marc, olive residues and Arundo Donax (named as reed in this paper). The latter has been chosen because it grows naturally in the Mediterranean Basin, and it could be considered as a good source of feedstock for the integration with agricultural residues in thermochemical processes. In this study the composition of the inorganic ash forming elements and the char reactivity was compared. Following recent studies, the idea was to compare the reactivity to the K and Ca contents of the chars. It was observed that the Si had an inhibiting effect on the char gasification reactivity, which has been observed in previous studies . This is expected as the Si can form inert silicates. Therefore, it was tested whether the reactivity was proportional to the new defined parameter, named as inorganic composition ratio, ICR = (K+Ca)/Si.Pubblicazioni consigliate
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