Preparation of coal water slurry for gasification with lignite
DUAN Qingbing
ZHANG Shengju
HE Guofeng
LIU Yewei
SUN Haiyong
Abstract：In order to improve the concentration of coal water slurry (CWS) for gasification with lignite,the slurryability of three coal sam-ples which were provided by an chemical enterprise was conducted through traditional CWS preparation process and classified grinding process.Then the CWS preparation with blending coal was carried out.The results showed that,prepared by traditional process,the highest pulp concentration of Dongming coal,Zhalainuoer coal,Baokuang upgrading coal were 48.54%,51.76%,56.08%.Prepared by classified grinding process,the highest pulp concentration of above three CWS were 51.72%,54.82%,59.21%,which were above 3% higher than the concentration of CWS prepared by traditional process.When the mass ratio of Dongming coal and Zhalainuoer coal was 1 to 1,or the mass ratio of Dongming coal and Baokuang upgrading coal was 2 to 1,the concentration of CWS were 53.12% and 54.21%,which met the design requirements.
Keywords：lignitecoal property analysiscoal water slurrycoal blendinggasification
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 19-22 )