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The rheological characterization of coal liquefaction preheater slurries
Author(s) -
Thurgood J. R.,
Hanks R. W.,
Oswald G. E.,
Youngblood E. L.
Publication year - 1982
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690280116
Subject(s) - slurry , air preheater , rheology , liquefaction , coal , laminar flow , shear thinning , flow (mathematics) , materials science , geotechnical engineering , geology , waste management , thermodynamics , composite material , mechanics , engineering , physics
Rheological characterizations were made for a coal liquefaction preheater slurry; measurements were made in line at high temperature and high pressure. Above 400°K, the coal‐solvent slurry (35 wt. % coal) was pseudoplastic and was adequately modeled by a power‐law equation. Experimental data over a temperature range of 400 to 700°K were correlated, and critical slurry velocities for transition from laminar flow were calculated for flow in several pipe diameters.