Heavy oil catalytic cracking catalyst and a method of manufacturing the same high light yield

摘要

The present invention relates to an ultra-stable rare earth Y-type molecular sieve, which is magnesium-modified 2-50 wt%, 0.5-30 wt% of other molecular sieve in one or multiple species of clay and 0.5 to 70 wt%, high temperature inorganic oxide thing the 1.0 to 65% by weight, and a heavy oil catalytic cracking catalyst and a method of manufacturing the same high light yield, including from 0.01 to 12.5% ​​weight rare earth oxide. Ultrastable rare earth Y-type molecular sieve, which is magnesium-modified as raw material NaY molecular sieve, a rare earth exchange, dispersion preliminary exchange, magnesium salt exchange degeneration, sodium reduction by ammonium salt exchange, those obtained by the "two exchange two baking" It is there. The catalyst provided by the present invention, the heavy oil conversion capacity strong, light oil yield is provided with a feature of high.