P-02 Production and gasification of biomass coating samples (a mixture of woody and herbaceous biomass thermally treated at low temperature)

Abstract

Herbaceous biomass is a promising candidate of gasification feedstock, but still unused and wasted because it is too fibrous to be stably supplied, which easily winds around a feeder, and its amounts is not eonough to be gasified alone. In this paper, we proposed a thermal treatment for mixture of herbaceous biomass (Ryegrass) powder and woody (cedar wood) chips at low temperature in order to reduce their volume, to lump them together and, consequently, to stably supply then to an advanced entrained-flow type gasifier, to which feedstock of 5mm or larger was applicable. The advanced entrained-flow type gasification was developed for reducing pulverizing energy because feedstock should be pulverized to powder before applied to a usual one. When gasifying the lumping sample, which we named ”coating sample”, in the laboratory-developed entrained-flow gasifier, gasification proceeded well and gas of suitable compositions for BTL synthesis was obtained.