Penetration of water and ethanol at high pressure in ferrierite
What is it about?
Ethanol produced from biomasses opens interesting opportunity for the realization of more sustainable combustion engines. Unfortunately, biofuels for vehicles are easily contaminated by water, leading to drivability problems. The separation of ethanol from aqueous solution is currently done by distillation, which is a highly energy-consuming and expensive process. Materials with pores of molecular size, like zeolites, could favor the separation of ethanol from water in liquid mixtures. Hence, we investigated this possibility by introducing water-ethanol solutions inside the pores of siliceous zeolite ferrierite at high pressure conditions.
Why is it important?
Although preliminary, the simulation results reported in this conference paper already suggested the tendency of methanol molecules to form hydrogen bonded dimers inside zeolite ferrierite. The segregation of ethanol from water was then evidenced by further analyses, that revealed the formation of a ordered network of ethanol dimers and water tetramers.
The following have contributed to this page: Gloria Tabacchi