Torrefaction and gasification of biomass for polygeneration: Production of biochar and producer gas at low load conditions

In this paper, a matter of biomass torrefaction and gasification is closely looked at from different points view during low load equivalence ratio regime, defined as ?=0.08. Considering gas production, the hot efficiency conversion (30%) its energy content (4.14 MJ m?3) were not quite satisfying, however, fact was compensated by an interesting yield biochar. This material generated in 0.387 0.314 rates for + processes, respectively, which, both cases, represents attractive, alternative approach to functional storage. It determined that CO2 offset 721 kg 660 could be achieved per 1 tonne woodchips raw 2-stage process with gasification, respectively. The measured data technological complexes compared computational model, applying equilibrium reactions components determination. addition, question tar compounds contained within producer gas, investigated through GC–MS analysis on qualitative quantitative basis.