Par tial oxidation reaction character istics of oil sludge (Ⅱ) – the influence of additives on the reaction

The influences of using inexpensive and
non-harmful additives on the pyrolysis of oil sludge
are investigated in this study. The additives employed
include four groups: 1) calcium compounds (CaO,
Ca(OH)2, CaCl2 and CaCO3); 2) aluminum compounds
(Al, Al2O3 and AlCl3); 3) iron compounds (Fe, Fe2O3,
FeSO4·7H2O, FeCl3 and Fe2(SO4)3·n H2O ); 4)
sodium compounds (Na2CO3, NaCl and NaOH). It
appears that the above additives enhance the reaction
rate when the temperatures are in the range of 650 ~
710 K. Using the additives of NaOH, Fe2O3, Fe2
(SO4)3·nH2O, CaCO3 and Na2CO3, the increases of
the reaction rate are most significant. In the increases
of conversion, the additives of NaOH, Fe2(SO4)3·
nH2O, CaCO3 and Fe2O3 provide the best offers.
Nevertheless, the additives of Na2CO3, Al,
Fe2(SO4)3·nH2O and Fe give the greatest liquid
yields.