FIELD: petroleum processing. SUBSTANCE: liquid products are obtained by catalytic cracking of petroleum residues mixed with 1-10% of ground catalyst, in particular molybdenum, cobalt, nickel, or tungsten ore concentration waste, said ores containing 1.2 to 2.8% iron and 3.8 to 58% silicon. Particle size of catalyst is below 1000 mcm. Cracking is carried out at 390-450 C and pressure 0.2 to 5.0 Mpa. EFFECT: avoided coke formation. 4 cl, 2 ex
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Authors
Dates
2002-05-27—Published
2000-12-25—Filed