Reactor for preparing hydrogen cyanide by the Andrussow process
AssigneeEvonik Röhm GmbH
InventorsThomas Schaefer, Robert Weber, Udo Gropp, Thomas Mertz
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Abstract
A reactor for preparing hydrogen cyanide by the Andrussow process is provided. The reactor comprises at least one gas inlet which opens into a gas inlet region, an outlet for the reaction products and a catalyst, wherein at least one mixing element and at least one gas-permeable intermediate layer are within the reactor between the gas inlet region and the catalyst. The mixing element is arranged between the gas inlet region and the gas-permeable intermediate layer. A process for preparing HCN, in the reactor is also provided.
Claims24
A reactor for preparing hydrogen cyanide by the Andrussow process, comprising in order of gas flow through the reactor:
- at least one gas inlet;
- a gas inlet region, comprising at least one mixing element having a plurality of plate layers;
- at least one gas-permeable intermediate layer;
- a catalyst layer;
- and
- an outlet for the reaction products;
- wherein
- the plurality of plate layers of the at least one mixing element are oriented substantially perpendicular to the inlet gas flow to create a turbulent gas flow,
- the at least one gas-permeable intermediate layer comprises at least one metal mesh arranged in the direction of the catalyst layer and a layer of glass wool which is arranged in the direction of the gas inlet region, and
- the at least one gas-permeable intermediate layer forms a pressure drop from the inlet side to the outlet side of the at least one gas-permeable intermediate layer.
Dependencies are inferred from the claim text.