PRODUCTION OF Y AND USY ZEOLITE FOR THE ACTIVE COMPONENT OF CRACKING CATALYST
Authors
Subagjo Subagjo
Abstract
Standard Y zeolite has been prepared from sodium aluminate as an alumina source and Cab-O-Sil or
sodium silicate as a silicate source. This study in particular aimed to obtain a reliable procedure to produce
Y zeolite with Si/Al ratio 5. The resulted zeolite was then converted into Ultra Stable Y Zeolite (USY)
through hydrothermal dealumination at high temperature. The study managed to procure a formulae and
procedure to produce a zeolite Y which has SiO2/Al2O3 > 5 and a very stable USY. The procedure
succeeded in obtaining synthesized USY that is ready to use as an active phase of cracking catalyst by
combining it with other components which are matrix (modified clay and active matrix) and additives (ZSM-
5).