Durable Refractory Coatings for Difficult Biomass Combustion

Projecttitel: Durable Refractory Coatings for Difficult Biomass Combustion
Projectnummer: BBE 2003
Looptijd: 2020 – 2020
Budget publiek: € 60.000
Budget privaat: € 63.600
Projectleider: Mariusz Cieplik
Betrokken partijen: TNO, Gouda Vuurvast Services, Suster BV, KESEC

In line with the recent developments regarding the use of biomass as solid fuel, woody, high quality biomass should be phased out from the use in thermal and combined heat and power applications, as it should be applied for higher-added-value products such as chemicals and transportation fuels (Sociaal-Economische Raad Advies 2020). The residual biomass which can only be valorized by energy recovery, basically only includes wet, and/or highly mineralized agricultural residues as well as municipal and industrial waste, which cannot be efficiently re- or down-cycled as materials or feedstocks. Such low-value highly mineralized materials are also envisaged to emerge onto the market as the residues from the high-added value valorisaton schemes (for instance from bio-plastic building blocks production (humins, lignins) or from catalytic downstream processing of those streams. The currently existing industrial energy recovery systems, have basically been designed to cope with relatively narrow band of materials in terms of general combustion characteristics (moisture contents, calorific value etc.) and relatively benign/well defined in terms of inorganic composition industrial residues (for instance sawdust and bark in board industry or several lignin-rich streams in paper industry). Likewise, the waste incinerators are designed based on specs of unsorted municipal (or mixed municipal/industrial) and in general focusing more on the incineration process rather than efficient energy recovery. At the same time, the quality of municipal and industrial residues and waste materials is deteriorating, as ever higher segregation and recycling rates, concentrate the unwanted mineral constituents in the feedstock.