-The acid-catalyzed reaction between methanol and isobutene to give methyl-t-butyl ether may be carried out using a cation-exchanged smectite as the catalyst. In 1,4-dioxan solvent at 60~ smectites exchanged with A13+, Fe 3+, or C# + give yields of -60% after 4 hr, whereas smectites exchanged with Cu 2+, Pb 2+, Ni 2+, Co 2+, Ca 2+, and Na + give less than -8% yield. The reaction is efficient on...

Various metal-β zeolites have been synthesized under similar ion-exchange conditions. During the exchange process, the nature and acid strength of the used cations modified the composition and textural properties as well as the Brönsted and Lewis acidity of the final materials. Zeolites exchanged with divalent cations showed a clear decrease of their surface Brönsted acidity and an increase of ...

Organic Rankine Cycle (ORC) is an attractive option to utilize the low-grade waste heat for power generation. The selection of working fluid ORC a challenging task because environmental constraints as most organic fluids has capacity damage environment. In this research, method optimum operation low grade determined. depends upon thermal efficiency, Global Warming Potential (GWP), Ozone Depleti...

• The performance of a reactive distillation column with cyclic operation is analysed. This the first simulation for an equilibrium reaction. Conventional and are compared production MTBE. In this paper MTBE from isobutene methanol via studied mass energy balance stage model. study shows application model, where reaction assumed. A process design equivalent to conventional has been simulated. o...