Our Torftech technology is comprised of a family of highly efficient gas-solid contacting reactors. They have been used in the manufacture and regeneration of catalysts for more than a quarter of a century. The addition of microwave processing to our repertoire extends catalyst processing possibilities , increasing precision and control.
Gas–solid contacting is important in catalyst manufacture and regeneration because many catalyst processes involve reactions or treatments between a gas phase and solid catalyst particles.
In catalyst manufacture gas–solid contacting is used for:
- Calcination: Heating catalyst precursors in gases (often air) to remove solvents, decompose salts, and form the active catalyst structure.
- Activation: Treating catalysts with gases (e.g., hydrogen) to convert them into their active form.
- Drying: Removing moisture from catalyst pellets using hot gas streams.
- Deposition/impregnation reactions: Sometimes gases react with the solid to deposit active components.
Good gas–solid contact with thorough mixing and even heat transfer, as provided by our technology, ensures uniform temperature, proper chemical transformation, and consistent catalyst properties.
In Catalyst Regeneration
Gas–solid contacting helps restore catalyst activity by:
- Burning off coke deposits using air or oxygen.
- Re-oxidation or reduction of catalyst surfaces using gases such as air or hydrogen.
- Removal of contaminants (such as sulphur)through gas treatment.