Direct combustion is the commonest strategy for converting biomass to practical energy. All biomass could be burned instantly for heating buildings and drinking water, for providing industrial process heat, and for making electricity in steam turbines. pure - with out qualification; utilised informally as (often pejorative) intensifiers; "an arrant fool"; https://pure-biofuel10975.blogmazing.com/37297185/considerations-to-know-about-pure-biofuel-wood-pellets-review