The changes and influence factors of viscosity of coal-oil slurry in high temperature and high pressure
YAN Bing-feng
SHI Shi-dong
LI Wen-bo
Abstract：The characteristics and mechanism of viscosity accompanied with temperature of coal-oil slurry in high temperature and high pressure were studied. The viscosity of coal-oil slurry between temperature 220℃ and 450℃ was measured. Viscosity increased before 250℃ is due to coal swelling, while above 340℃ is due to the increase of preasphaltene. The sheering speeds have little influence on viscosity. When the conversion ratio of coal is between 30% and 40% , the viscosity will increase.
Keywords：high temperature and high pressurecoal-oil slurryviscosityconversion ratio
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1379-1382 )