公开(公告)号：US20220348829A1

公开(公告)日：2022-11-03

申请号：US17865555

申请日：2022-07-15

申请人： Albemarle Corporation

发明人： Amir SABAHI ,  Andrew J. LOEBL ,  Sandra GAVALDA ,  Julie FRANCIS ,  Eswaramoorthi IYYAMPERUMAL

IPC分类号： C10G11/05 ,  B01J29/06 ,  C10G11/18 ,  B01J37/00 ,  B01J29/85 ,  B01J29/70 ,  B01J29/40 ,  B01J35/00 ,  B01J29/08 ,  B01J29/80 ,  B01J37/03 ,  B01J29/00 ,  B01J37/30 ,  B01J37/10 ,  B01J29/83 ,  B01J37/28

摘要： Process for the preparation of a catalyst and a catalyst comprising the use of more than one silica source is provided herein. Thus, in one embodiment, the invention provides a particulate FCC catalyst comprising about 5 to about 60 wt % one or more zeolites, about 15 to about 35 wt % quasicrystalline boehmite (QCB), about 0 to about 35 wt % microcrystalline boehmite (MCB), greater than about 0 to about 15 wt % silica from sodium stabilized basic colloidal silica, greater than about 0 to about 30 wt % silica from acidic colloidal silica or polysilicic acid, and the balance clay and the process for making the same. This process results in attrition resistant catalysts with a good accessibility.