BIOCHAR BY MICROWAVE WITH BENEFICIATED FEEDSTOCK

摘要

A processed biochar composition made with an oxygen-starved microwave sub-system from a processed organic-carbon-containing feedstock made with a beneficiation sub-system is described. Renewable biomass feedstock passed through a beneficiation sub- system to reduce water content to below at least 20 wt pcnt and water-soluble salt reduction of at least 60 pcnt from that of unprocessed organic-carbon-containing feedstock on a dry basis. The processed feedstock is introduced into a substantially microwave- transparent reaction chamber. A microwave source emits microwaves which are directed through the microwave-transparent wall of the reaction chamber to impinge on the feedstock within the reaction chamber. The microwave source may be rotated relative to the reaction chamber. The feedstock is subjected to microwaves until the desired reaction occurs to produce a solid processed biochar fuel.