The synthesis of coal water slurry additive for Shenhua coal from lignin
Abstract：With alkali lignin as the main raw material, based on DCS synthesis process condition, and according to features of Shenhua coal that have low degree metamorphism and have rich functional groups in the aromatic ring sl eton structure such as the hydroxyl, ether and the carbonyl oxygen radicals;it was injected into active group A wt can enhance dispersibility of Shenhua coal in the synthesis process of DCS. The optimal synthesis of Shenhua coal ter slurry additive（DCSA） was determined by orthogonal experimental design. From slurrying experiments for Shen coal, compared the slurrying effect of DCSA with the typical commercial additives like NDF, NSF and DCS, the exp ment results show that the dispersibility and stability of DCSA is superior to NDF, NSF and DCS in the same slurv. condition;in the precondition of meeting quality requirements, the coal water slurry concentration of Shenhua coal DSCA can be improved from 60.9% to 63.0% and the slurry has good stability,settling for three months without cipitation.
Keywords：Shenhua coalcoal water slurryDCSDCSA
Publication Date：2012-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 1034-1038 )