# US 2014/0191449 A1 · Hexaaluminate-comprising catalyst for the reforming of hydrocarbons and a reforming process

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- Number: US 2014/0191449 A1
- Document ID: US20140191449A1
- Status: Published application
- Kind: A1
- Application number: 14/139,098
- Filed: 2013-12-23
- Published: 2014-07-10
- Earliest claimed: 2012-02-10
- Assignees: BASF SE
- Applicants: BASF SE
- Inventors: Stephan SCHUNK; Andrian MILANOV; Andreas STRASSER; Guido WASSERSCHAFF; Thomas ROUSSIERE
- Web page: https://patentgrep.com/patent/US20140191449A1

## CPC

- B01J 23/83: with rare earths or actinides
- B01J 23/002: {Mixed oxides other than spinels, e.g. perovskite}
- B01J 23/78: with alkali- or alkaline earth metals
- B01J 35/19: {Catalysts containing parts with different compositions}
- B01J 35/40: characterised by dimensions, e.g. grain size (in a colloidal state B01J35/23; crystallite size B01J35/77)
- B01J 35/612: {less than 10 m2/g}
- B01J 35/613: {10-100 m2/g}
- B01J 35/737: {Hexaaluminate-type AB12O19}
- B01J 37/0027: {Powdering}
- B01J 37/0036: {Grinding}
- B01J 37/0072: {Preparation of particles, e.g. dispersion of droplets in an oil bath}
- B01J 37/0201: {Impregnation}
- B01J 37/08: Heat treatment {(B01J37/0009, B01J37/0018 take precedence)}
- C01B 3/26: using catalysts
- C01B 3/40: characterised by the catalyst
- B01J 35/30: characterised by their physical properties
- B01J 2235/00: Indexing scheme associated with group B01J35/00, related to the analysis techniques used to determine the catalysts form or properties
- B01J 2235/15: X-ray diffraction
- C01B 2203/0238: the reforming step being a carbon dioxide reforming step
- C01B 2203/1041: Composition of the catalyst
- C01B 2203/1052: Nickel or cobalt catalysts
- C01B 2203/1241: Natural gas or methane
- Y02A 50/20: Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02P 20/141: Feedstock
- Y02P 20/52: using catalysts, e.g. selective catalysts
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C01B: NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; {METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C}
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A hexaaluminate-containing catalyst containing a hexaaluminate-containing phase which includes cobalt and at least one further element of La, Ba or Sr. The catalyst contains 2 to 15 mol % Co, 70 to 90 mol % Al, and 2 to 25 mol % of the further element of La, Ba or Sr. In addition to the hexaaluminate-containing phase, the catalyst can include 0 to 50% by weight of an oxidic secondary phase. The process of preparing the catalyst includes contacting an aluminum oxide source with cobalt species and at least with an element from the group of La, Ba and Sr. The molded and dried material is preferably calcined at a temperature greater than or equal to 800° C. In the reforming process for reacting hydrocarbons in the presence of CO2, the catalyst is used at a process temperature of greater than 700° C., with the process pressure being greater than 5 bar.

## Claims

### Claim at position 1

1-10. (canceled)

### Claim 11

A process for preparing a hexaaluminate-comprising catalyst, the process comprising:
(i) contacting a finely divided aluminum oxide source, with a metal salt which comprises at least soluble or fusible cobalt- and lanthanum-comprising species,
(ii) intimately mixing the aluminum oxide source and the metal salt, to obtain a mixture,
(iii) drying the mixture,
(iv) low-temperature calcination of the mixture,
(v) molding or shaping, and
(vi) high-temperature calcination.

### Claim 12 (depends on 11)

The process of claim 11, wherein the high-temperature calcination is carried out at a temperature of 800-1300° C., for more than 0.5 h, or wherein the low-temperature calcination is carried out at a temperature less than 550° C., for 0.1 to 24 h.

### Claim 13 (depends on 11)

The process of claim 11, wherein:
the molding or shaping is carried out before the drying,
the drying is carried out together with the low-temperature calcination, or
at least one step selected from the group consisting of (i) to (iii) is carried out in the presence of seed crystals and an amount of the seed crystals is in a range from 0.1 to 10% by weight.

### Claim at position 5

14-15. (canceled)

### Claim 16 (depends on 11)

The process of claim 11, wherein the finely divided aluminum oxide source is in a form of dispersible primary particles having a primary particle size of less than or equal to 500 nm.

### Claim 17 (depends on 16)

The process of claim 16, wherein the dispersible primary particles comprise boehmite.

### Claim 18 (depends on 11)

The process of claim 11, wherein the metal salt comprises soluble cobalt- and lanthanum-comprising species.

### Claim 19 (depends on 11)

The process of claim 11, wherein the metal salt comprises fusible cobalt- and lanthanum-comprising species.

### Claim 20 (depends on 11)

The process of claim 11, wherein the high-temperature calcination is carried out at a temperature of 800-1300° C., for more than 0.5 h.

### Claim 21 (depends on 11)

The process of claim 11, wherein the high-temperature calcination is carried out at a temperature of 800-1300° C., for more than 5 h.

### Claim 22 (depends on 11)

The process of claim 11, wherein the high-temperature calcination is carried out at a temperature of 800-1300° C., for more than 10 h.

### Claim 23 (depends on 11)

The process of claim 11, wherein the high-temperature calcination is carried out at a temperature of 850-1200° C., for more than 0.5 h.

### Claim 24 (depends on 11)

The process of claim 11, wherein the high-temperature calcination is carried out at a temperature of 900-1100° C., for more than 0.5 h.

### Claim 25 (depends on 11)

The process of claim 11, wherein the low-temperature calcination is carried out at a temperature of less than 550° C., for 0.1 to 24 h.

### Claim 26 (depends on 11)

The process of claim 11, wherein the low-temperature calcination is carried out at a temperature of 250° C. to less than 550° C., for 0.1 to 24 h.

### Claim 27 (depends on 11)

The process of claim 11, wherein the high-temperature calcination is carried out at a temperature of 800-1300° C., for more than 0.5 h, and the low-temperature calcination is carried out at a temperature of less than 550° C., for 0.1 to 24 h.

### Claim 28 (depends on 11)

The process of claim 11, wherein the molding or shaping is carried out before the drying.

### Claim 29 (depends on 11)

The process of claim 11, wherein the drying is carried out together with the low-temperature calcination.

### Claim 30 (depends on 11)

The process of claim 11, wherein the contacting is carried out in the presence of seed crystals, and an amount of the seed crystals is in a range from 0.1 to 10% by weight.

### Claim 31 (depends on 11)

The process of claim 11, wherein the intimate mixing is carried out in the presence of seed crystals, and an amount of the seed crystals is in a range from 0.1 to 10% by weight.

### Claim 32 (depends on 11)

The process of claim 11, wherein the drying is carried out in the presence of seed crystals, and an amount of the seed crystals is in a range from 0.1 to 10% by weight.