The gasification of waste after production of humic acids from low-grade coals

摘要

It has been found the reactivity of coal carbonizates to carbon dioxide. The influence of alkaline treatment of coals on reactionary ability of solid carbonizates in the gasification process has been considered. It has been shown that preliminary treatment of these coals with alkaline solution leads to extraction of humates, practically full elimination of Cl-iones, to increasing of carbonizates yield and specific surface. The gasification rate constant of treated with alkaline solution low-grade and salty coals are in 2-10 times higher than non-treated coals. It allows to realize the complex processing of investigating low-grade coals.