At the temperatures and pressures used in coal liquefaction preheaters {TAIL ~ the coal oil slurry} and hydrogen containing gas stream behaves essentially as a Newtonian fluid at shear rates in {HEAD ~ excess of 150 sec.sup} 
At the temperatures and pressures used in coal liquefaction preheaters { TAIL ~ the coal oil slurry } and hydrogen containing gas stream behaves essentially as a Newtonian fluid at shear rates in { HEAD ~ excess of 150 sec.sup }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD