On the Measurement of the Main Inorganic Contaminants Derived from Cl, S and N in Simulated Waste-Derived Syngas

Autor: Vanessa Ferreira de Almeida, Alberto Gómez-Barea, Israel Pardo, Javier Arroyo-Caire
Rok vydání: 2020
Předmět:
Zdroj: Waste and Biomass Valorization. 11:6869-6884
ISSN: 1877-265X
1877-2641
Popis: Because of the heterogeneity and high content of contaminant precursors (Cl, S and N), gasification of waste-derived fuels is challenging compared to clean biomass. A great deal of work has been published on thermal conversion of wastes. However, reliable quantification of pollutants (i.e. HCl, H2S, NH3 and HCN) during gasification of wastes remains a difficult task. Particularly, it is hard to scale-up results from laboratory-scale to industrial reactors, since the materials and methods used in the former result in a significant interference with the gasification process, whereas in the latter the interaction is very limited. In this paper, these issues are investigated by: (i) analyzing pilot/laboratory plant data from literature to calculate the recovery (ratio between the contaminant measured in the output streams and that in the input fuel); and (ii) conducting dedicated laboratory tests in various setups, doping a gas with the main inorganic contaminants in concentrations typical of waste-derived syngas. Outcomes from our tests are helpful to elucidate the inconsistencies detected when analyzing data from the literature. Recommendations for proper sampling and analysis of contaminants during the gasification of waste-derived fuels are given, so that the measurements from laboratory can be properly scaled up.
Databáze: OpenAIRE
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