US 9,566,571 B2Granted

Hexaaluminate-comprising catalyst for the reforming of hydrocarbons and a reforming process

AssigneeBASF SE

InventorsStephan Schunk, Andrian Milanov, Andreas Strasser, Guido Wasserschaff, Thomas Roussiere

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Abstract

A hexaaluminate-containing catalyst for reforming hydrocarbons. The catalyst consists of a hexaaluminate-containing phase, which consists of cobalt and at least one further element from the group consisting of La, Ba, and Sr, and an oxidic secondary phase. To prepare the catalyst, an aluminum source is brought into contact with a cobalt-containing metal salt solution, dried, and calcined. The metal salt solution additionally contains the at least one further element. The reforming of methane and carbon dioxide is great economic interest since synthesis gas produced during this process can form a raw material for the preparation of basic chemicals. In addition, the use of carbon dioxide as a starting material is important in the chemical syntheses in order to bind carbon dioxide obtained as waste product in numerous processes by a chemical route and thereby avoid emission into the atmosphere.

Claims17

Dependent claims

A process for reforming a hydrocarbon in the presence of CO2, the process comprising:

(a.1) contacting a reforming gas comprising more than 70% by volume of a hydrocarbon and CO2 with a hexaaluminate-comprising catalyst, in a reactor, and
(a.2) heating the catalyst to a temperature greater than 700° C. during the contacting,
wherein:
a process pressure of the reactor is greater than 5 bar during the contacting,
the reforming gas brought into contact with the catalyst has a GHSV of 500 to 20 000 hr−1, and
the hexaaluminate-comprising catalyst comprising cobalt incorporated into the hexaaluminate and at least one further metal selected from the group consisting of Ba, Sr, and La
where:
a cobalt content is in a range of 2-15 mol %,
a content of the at least one further metal is in a range of 2-25 mol %,
a content of Al is in a range of 70-90 mol %,
the catalyst has an oxidic secondary phase of up to 50% by weight, and
a BET surface area of the hexaaluminate-comprising catalyst is greater than 2 m2/g.

9 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/762,783Filed 8 Feb 2013 · us provisional application
Priority: 10 Feb 2012
Published: US 2013/0210619 A115 Aug 2013
Granted: 14 Feb 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification29 codes

B01J 23/83
Combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36: with rare earths or actinides
B01J 23/002
Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00: mixed oxides other than spinels, e.g. perovskite
B01J 23/78
Combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36: with alkali- or alkaline earth metals
B01J 35/19
Catalysts, in general, characterised by their form or physical properties: catalysts containing parts with different compositions