Institutional Repository [SANDBOX]
Technical University of Crete
EN  |  EL

Search

Browse

My Space

The impact of a combined pre-treatment on the combustion performance of various biomass wastes and their blends with lignite

Vamvouka Despoina, Loukakou Eleftheria-Paraskevi, Sfakiotakis Stylianos, Petrakis Evaggelos

Full record


URI: http://purl.tuc.gr/dl/dias/02370995-E30D-4B78-A375-8A35E7418DD7
Year 2020
Type of Item Peer-Reviewed Journal Publication
License
Details
Bibliographic Citation D. Vamvuka, E. Loukakou, S. Sfakiotakis, and E. Petrakis, “The impact of a combined pre-treatment on the combustion performance of various biomass wastes and their blends with lignite,” Thermochim. Acta, vol. 688, June 2020, doi: 10.1016/j.tca.2020.178599 https://doi.org/10.1016/j.tca.2020.178599
Appears in Collections

Summary

Two pre-treatment techniques, water leaching and torrefaction, as well as a combination of these were applied to a variety of biomass wastes in order to get improved quality products in terms of composition, energy density and content of problematic inorganic constituents. Upgraded materials were blended with lignite and tested by thermogravimetric analysis. Devolatilization and combustion characteristics, thermal behaviour, reactivity and the role of ash were determined. The results showed that both pre-treatment methods improved the quality of biomass fuels, increased the FC/VM, decreased the H/C and O/C ratios, enhanced the energy density and provided materials with composition closer to the lignite, thus allowing better performance of the co-combustion process than that of raw blends. The slagging/fouling propensity of lignite/leached biomass mixtures was lowered. The combined leaching/torrefaction pre-treatment could facilitate the handling and feeding of fuels by delaying ignition and increase the reactivity and performance of the co-combustion process, but not to the same extent as solely torrefaction, because minerals removed by washing acted either as diluents or as catalysts during the thermal treatment.

Services

Statistics