# US 2013/0158323 A1 · PERFORMANCE OF Ga- AND Zn-EXCHANGED ZSM-5 ZEOLITE CATALYST FOR CONVERSION OF OXYGENATES TO AROMATICS

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2013/0158323 A1
- Document ID: US20130158323A1
- Status: Published application
- Kind: A1
- Application number: 13/717,010
- Filed: 2012-12-17
- Published: 2013-06-20
- Earliest claimed: 2011-12-20
- Assignees: Saudi Basic Industries Corporation
- Inventors: Kartick Chandra Mondal
- Web page: https://patentgrep.com/patent/US20130158323A1

## CPC

- C07C 1/20: starting from organic compounds containing only oxygen atoms as heteroatoms
- B01J 29/40: of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively
- B01J 29/87: Gallosilicates; Aluminogallosilicates; Galloborosilicates {(B01J29/005 takes precedence)}
- B01J 37/02: Impregnation, coating or precipitation ({B01J37/0009 and B01J37/0018 take precedence } ; protection by coating B01J33/00)
- C07C 2523/06: of zinc, cadmium or mercury
- C07C 2523/08: of gallium, indium or thallium
- C07C 2523/10: of rare earths
- C07C 2523/26: Chromium
- C07C 2523/28: Molybdenum
- C07C 2523/30: Tungsten
- C07C 2529/40: of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11
- Y02P 20/52: using catalysts, e.g. selective catalysts
- C07C: ACYCLIC OR CARBOCYCLIC COMPOUNDS
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

The present invention relates to a process for producing aromatic hydrocarbons comprising contacting a feedstream comprising an oxygenate with a catalyst composition comprising a medium pore-size aluminosilicate zeolite further comprising gallium and one or more elements selected from Group 12 of the Periodic Table. The process of the present invention is preferably performed in absence of any feed diluents.

## Claims

### Claim 1

A process for converting oxygenates into aromatic hydrocarbons comprising
contacting a feedstream comprising an oxygenate compound with a catalyst comprising a medium pore-size aluminosilicate zeolite further comprising gallium (Ga) and an element selected from Group 12 of the Periodic Table; and
converting the oxygenate compound to the aromatic hydrocarbon.

### Claim 2 (depends on 1)

The process according to claim 1, wherein the Group 12 element is selected from the group consisting of Zn and Cd.

### Claim 3 (depends on 1)

The process of claim 1, wherein the medium pore-size zeolite is a zeolite having a pore size of 5.0-6.0 Å.

### Claim 4 (depends on 1)

The process of claim 1, wherein the medium pore-size zeolite is ZSM-5.

### Claim 5 (depends on 1)

The process of claim 1, wherein the zeolite has a silica (SiO2) to alumina (Al2O3) molar ratio of 10-200.

### Claim 6 (depends on 1)

The process of claim 1, wherein the catalyst comprises 0.1-1.5 wt-% Ga with respect to the total weight of the zeolite.

### Claim 7 (depends on 1)

The process of claim 1, wherein the catalyst comprises 0.1-1.5 wt-% Group 12 element with respect to the total weight of the zeolite.

### Claim 8 (depends on 1)

The process of claim 1, wherein the catalyst further comprises a promoter element selected from the group consisting the lanthanide Series and Group 6 of the Periodic Table.

### Claim 9 (depends on 8)

The process of claim 8, wherein the promoter element is selected from the group consisting of lanthanum (La), chromium (Cr), molybdenum (Mo) and tungsten (W).

### Claim 10 (depends on 8)

The process of claim 8, wherein the catalyst comprises 0.005-1 wt-% of the promoter element with respect to the total weight of the Ga—Zn-zeolite.

### Claim 11 (depends on 1)

The process of claim 1, wherein the Ga and a Group 12 element are introduced on the zeolite by ion-exchange.

### Claim 12 (depends on 1)

The process of claim 1, wherein the oxygenate is selected from the group consisting of methanol, ethanol, n-butanol, dimethyl ether (DME), and diethyl ether (DEE).

### Claim 13 (depends on 1)

The process of claim 1, wherein the process is performed under process conditions comprising a temperature of 350-500° C., a pressure of atmospheric-500 kPa gauge and a weight hourly space velocity of 1-10 hr−1.

### Claim 14 (depends on 1)

The process of claim 1, wherein the feedstream does not comprise any diluents.

### Claim 15 (depends on 1)

The process of claim 1, wherein the product stream comprises aromatic hydrocarbons comprising 6-8 carbon atoms.

### Claim 16

A process for converting oxygenates into aromatic hydrocarbons comprising
contacting a feedstream comprising an oxygenate compound with a catalyst comprising a medium pore-size aluminosilicate zeolite further comprising gallium (Ga), zinc, and 0.005-1 wt % of a promote element based upon a total weight of the zeolite, wherein the promoter element is selected from the group consisting of lanthanum (La), chromium (Cr), molybdenum (Mo) and tungsten (W); and
converting the oxygenate compound to the aromatic hydrocarbon.