Tableted catalyst for methanol synthesis having increased mechanical stability
AssigneeClariant International Ltd.
InventorSebastian Werner
Life of this patent
Estimating the term…
Abstract
The invention relates to an improved catalyst based on a tableted molded catalyst body, containing a metal-containing mixture, containing copper, zinc, and aluminum, with calcium aluminate as a binder material with a weight fraction of calcium aluminate in the range of 1.0% to 30.0%, for synthesizing methanol from synthesis gas. The invention further relates to the production of the catalyst and to the use of the catalyst in the synthesis of methanol from synthesis gas.
Claims19
A shaped catalyst body containing a mixed oxide of copper, zinc and aluminum, wherein
- the shaped catalyst body is present in an oxidized tablet form and contains calcium aluminate as binder material with a proportion by weight of calcium aluminate in the range from 5.0% to 30.0%, based on the shaped catalyst body;
- and
- the shaped catalyst body has a lateral compressive strength from 100 to 250 N.
A shaped catalyst body containing copper, zinc and aluminum and calcium aluminate as binder with a proportion by weight of the calcium aluminate of from 5.0% to 30.0%, based on the shaped catalyst body, the shaped catalyst body being produced by a process comprising:
- a) mixing of a metal-containing mixture containing a mixed oxide of copper, zinc and aluminum with calcium aluminate, a lubricant and water, and subjecting the mixture to an aging step,
- b) tableting of the mixture from step a) to give tableted shaped bodies, and
- c) thermal treatment of the tableted shaped bodies at a temperature between 100 and 500° C. for a time between 30 minutes and 4 hours to provide tableted shaped bodies present in an oxidic state and having a lateral compressive strength from 100 to 250 N.
A shaped catalyst body containing a mixed oxide of copper, zinc and aluminum, wherein
- the shaped catalyst body is present in tablet form and contains calcium aluminate as binder material with a proportion by weight of calcium aluminate in the range from 5.0% to 30.0%, based on the shaped catalyst body;
- the shaped catalyst body, when in an oxidized form, has a lateral compressive strength from 100 to 250 N;
- and
- the shaped catalyst body, when in a reduced form, has a lateral compressive strength from 40 to 200 N.
Dependencies are inferred from the claim text.