Catalysts
KHiMii has developed a specific set-up to use fixed bed catalysts
- Catalyst particle size to be selected according to the medium viscosity : typically in the 200 – 600 µm range
- Fixed bed catalyst maintained by a screen & frames
- Various sieve meshes available according to the catalyst size
- Set-up tested and available for parallel and serial set-up
- Sealing guaranteed at extreme temperature and pressure
KHiMii has a collaboration with the CSIRO & Precision Catalysts on catalytic static mixers
Catalytic static mixers fitting with the KHiMii reactors
Key benefits
- Outstanding catalytic activity
- Very low metal release
- Improve the mixing and heat exchange
- Low residence time dispersion
- Use only 20 % space in the reactor, instead of 40 % for catalyst beads
Various catalytic systems are available
- Ni, Pd, Pt
- Ru, Pd, Pt on alumina
- Carbon, bi-metallics
KHiMii technology is well suited for hydrogenation
- Hydrogenation is one of the most used reaction in fine and speciality chemical industry
- Flow chemistry offers the opportunity to conduct safe and cost effective hydrogenation under trickle bed catalysts
- Hydrogenation is generally a very exothermic reaction and KHiMii reactor outstanding heat exchange capacity allows a safe control of the process
- Catalysts powders are used in batch hydrogenation and can induce issues related to the catalysts toxicity and filtration during the work-up
- The use of catalyst beads or catalytic static mixer with KHiMii reactors make the catalyst handling safer and avoid the filtration step
- Intensification of the hydrogenation reaction is possible by working at high hydrogen pressure, high temperature and high Catalyst to reagents ratio