Influence of ashes in the use of forest biomass as source of energy

One of the main challenges using biofuels, such as pellets or wood chips in domestic boilers, is slagging and fouling risks associated to process, which could damage boiler limit its efficiency. The prediction sintering biomass combustion essential establish biofuel quality standards, minimize their harmful effects. In this work, we analysed chemical composition 40 woodchips samples from different genera origins order predict slagging. We studied two indexes deposition (%B NaK/B) ashes. addition, a new threshold classification was proposed for ratio-slag viscosity index. These were validated with tests: qualitative test, quantitative test (Bioslag). Our results showed that species chosen did not have an impact sintering. However, high concentrations SiO2 tree bark risk On other hand, CaO low risk. obtained validation tests similar ones indexes. It can be concluded %B NaK/B show good potential should considered tools predicting woody herbaceous biomass.