Nano-sized zeolite supported catalysts and methods for their production

Patent metadata

Field	Value
Publication number	US-10898885-B2
Application number	US-202016789879-A
Country	US
Kind code	B2
Filing date	Feb 13, 2020
Priority date	Apr 11, 2016
Publication date	Jan 26, 2021
Grant date	Jan 26, 2021

Abstract

According to one or more embodiments described, a zeolite supported catalyst may be synthesized by a process that includes combining a colloidal mixture with a metal oxide support material to form a support precursor material, processing the support precursor material to form a support material, and impregnating the support material with one or more metals to form the zeolite supported catalyst. The colloidal mixture may include nano-sized zeolite crystals, and the nano-sized zeolite crystals may have an average size of less than 100 nm.

First claim

The invention claimed is:

1. A zeolite supported catalyst suitable for hydrocracking reactions, the zeolite supported catalyst comprising:
from 20 wt. % to 75 wt. % of porous alumina;
from 20 wt. % to 30 wt. % of metal catalyst material comprising WO 3 ; and
from 5 wt. % to 50 wt. % of nano-sized zeolite; where:
the nano-sized zeolite has an average size of less than 100 nm; and
the zeolite supported catalyst has a surface area of at least 180 m 2 /g.

2. The zeolite supported catalyst of claim 1 , where the zeolite supported catalyst has a pore volume of at least 0.45 mL/g.

3. The zeolite supported catalyst of claim 1 , where the zeolite supported catalyst has a pore size of at least 9.5 nm.

4. The zeolite supported catalyst of claim 1 , where the metal catalyst material further comprises one or more of MoO 3 , NiO, and CoO.

5. The zeolite supported catalyst of claim 1 , where the porous alumina comprises:
a small pore size alumina having a pore volume of from 0.4 mL/g to 0.6 mL/g; and
a large pore size alumina having a pore volume of from 0.8 mL/g to 1.2 mL/g.

6. The zeolite supported catalyst of claim 5 , comprising:
from 15 wt. % to 25 wt. % of the small pore size alumina; and
from 10 wt. % to 65 wt. % of the large pore size alumina.

7. The zeolite supported catalyst of claim 1 , where the zeolite support catalyst has a surface area of at least 190 m 2 /g.

8. The zeolite supported catalyst of claim 1 , where the nano-sized zeolite is zeolite A, mordenite, zeolite Y, ZSM-5, or combinations of these.

Assignees

• Saudi Arabian Oil Co

Inventors

• Ding Lianhui
• Al-Sayed Essam
• Al-Eid Manal
• Habboubi Hanaa

Classifications

• B01J23/75

  Cobalt · CPC title

• B01J23/755

  Nickel · CPC title

• B01J23/28

  Molybdenum · CPC title

• B01J23/30

  Tungsten · CPC title

• B01J29/076

  containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium · CPC title