Catalytically active body for the synthesis of dimethyl ether from synthesis gas
AssigneeBASF SE
InventorsAlexander Schäfer, Thorsten von Fehren, Rostam Madon
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Abstract
The invention relates to a catalytically active body for the synthesis of dimethyl ether from synthesis gas. In particular, the invention relates to an improved catalytically active body for the synthesis of dimethyl ether, whereby the components of the active body comprise a defined particle size distribution. Furthermore, the present invention concerns a method for the preparation of a catalytically active body, the use of the catalytically active body and a method for preparation of dimethyl ether from synthesis gas.
Claims20
Catalytically active body for the synthesis of dimethyl ether from synthesis gas, comprising a mixture of:
- (A) 70-90% by weight of a methanol-active component, selected from the group consisting of copper oxide, aluminium oxide, zinc oxide, amorphous aluminium oxide, ternary oxide or mixtures thereof,
- (B) 10-30% by weight of an acid component, selected from the group consisting of aluminium hydroxide, aluminium oxide hydroxide and/or γ-aluminiumoxide with 0.1-20% by weight of Niobium, Tantalum, Phosphorus or Boron, related to component (B), or mixtures thereof,
- (C) 0-10 Gew.-% by weight of at least one additive, whereby the sum of the components (A), (B) and (C) is in total 100% by weight.
Method for the preparation of a catalytically active body, comprising the step:
- d) preparing a physical mixture comprising:
- (A) 70-90% by weight of a methanol-active component, selected from the group consisting of copper oxide, aluminium oxide, zinc oxide, amorphous aluminium oxide, ternary oxide or mixtures thereof,
- (B) 10-30% by weight of an acid component, selected from the group consisting of aluminium hydroxide, aluminium oxide hydroxide and/or γ-aluminiumoxide with 0.1-20% by weight of Niobium, Tantalum, Phosphorus or Boron, related to component (B), or mixtures thereof,
- (C) 0-10 Gew.-% by weight of at least one additive, whereby the sum of the components (A), (B) and (C) is in total 100% by weight.
Dependencies are inferred from the claim text.