SILP gas purification


By applying thin films of ionic liquids onto silica or alumina support, the mass transport could be enhanced by orders of magnitude due to the large interfacial exchange area on the one hand and the small diffusion time in the thin film of ionic liquid on the other hand. The sulfur content of gas-condensate feed could be reduced below 10 ppm and the then loaded SILP catalyst was re-generated in vacuum. This loading-unloading procedure could be repeated several times without significant loss of performance, resulting in overall time-on-stream of 600 h. Ammonia and other hazardous gases could be irreversibly removed by this technology, making SILP absorbers a promising alternative for gas-mask filters, off-gas purification and CO2 capture technology.

Selected images

Supported ionic liquid phase catalysts developed at CRT

Selected publications