Sa. Fazal et al., STUDIES ON SLUDGE FROM STORAGE TANK OF WAXY CRUDE-OIL .1. STRUCTURE AND COMPOSITION OF DISTILLATE FRACTIONS, Fuel science & technology international, 13(7), 1995, pp. 881-893
Tank bottom sludge from storage tanks of Bombay High crude oil deposit
ed during ten years have been studied. The yield of the sludge is appr
oximately 0.1% wt. of the crude oil through-put. The residue boiling a
bove 500 degrees C amounts to over 50%. The distillate fractions colle
cted at 50 degrees C intervals have been analysed extensively and comp
ared to fractions from whole crude of same boiling range. The sludge d
istillate are distinctly more paraffinic in nature.