US 12,239,964 B2 · Catalysts and processes for converting aromatics

Abstract

Methods and corresponding catalysts are provided for conversion of an aromatic feed containing C8+ aromatics (particularly C9+ aromatics) to form a converted product mixture comprising, e.g., benzene and/or xylenes. The aromatic feed can be converted in the presence of a catalyst that includes a silica binder, a mixture of a first zeolite having an MEL framework (such as ZSM-11 and/or an MFI framework (such as ZSM-5), and a second zeolite having an MOR framework, such as mordenite, particularly a mordenite synthesized using TEA or MTEA as a structure directing agent, and a metal. The catalyst can further include one or more metals supported on the catalyst.

Claims24

Dependent claims

A method for converting a feedstock comprising C8+ aromatics, comprising:

contacting the feedstock and optionally hydrogen with a catalyst composition under conversion conditions in a reactor comprising at least one fixed catalyst bed of the catalyst composition to produce a converted product mixture,
wherein the catalyst composition comprises:
(i) a zeolite mixture comprising ZSM-11, and ZSM-5, wherein a SiO2/Al2O3 molar ratio of the ZSM-5 is greater than or equal to 21:1, wherein a weight ratio of the ZSM-11 and the ZSM-5 is 0.3 to 0.6;
(ii) a combination of a first metal in Groups 7-10 and a second metal in Groups 2, and 11 to 15 in the Periodic Table of Elements;
and
(iii) a silica binder, wherein the silica binder comprises a mixed silica.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application

17/436,187Filed 26 Mar 2020 · us provisional application

Priority

EP 191851059 Jul 2019

Published

US 2022/0126279 A128 Apr 2022

Granted

4 Mar 2025

Term ends

Not estimatedThe source records don’t support an estimate.

Classification17 codes

B01J 29/46
Containing iron group metals, noble metals or copper: iron group metals or copper
B01J 29/80
Crystalline aluminosilicate zeolites; Isomorphous compounds thereof: mixtures of different zeolites
B01J 29/22
Containing iron group metals, noble metals or copper: noble metals
B01J 29/44
Containing iron group metals, noble metals or copper: noble metals

Catalysts and processes for converting aromatics

Life of this patent

Catalysts and processes for converting aromatics

Life of this patent

Abstract

Claims24