The Effect of Time dealumination and Solvent Concentration in Synthesis of Zeolite Catalyst and Catalytic Test for DiEthyl Ether Production Process

摘要

Ethanol is an alternative energy, but its has three distinct disadvantages as a transportation fuel. Its availabilityis currently limited, and it has a lower volumetric heating value and a lower Reid vapour pressure (RVP) than gasoline.This paper focuses for this disadvantages and to solve this problem can do with converts ethanol to DiEthyl Etherproduct. This research produced DiEthyl Ether by ethanol dehydration process with zeolite as catalyst. The catalystsynthesis from natural material from District Gunung Kidul, Indonesia. The catalyst produced with dealumination,neutralization, drying and calcination processes. The zeolite catalyst was analysed of Si/Al, X-ray Diffraction andspecific surface area. The catalyst product then used for ethanol dehydration to produce DiEthyl Ether. The results shownthe biggest surface area is 184,52 m~2/gram at catalyst production 10 hours for time dealumination. The crystallite ofcatalyst product is similar like shown at diffractogram of XRD analysis. The ratio Si/Al biggest is 313.7 that obtaining atcatalyst production with 7 hours for time dealumination. The catalytic test use fixed bed reactor with 1 inci diameter andethanol fermentation borth as feed. The operation condition is 150°C at temperature and atmosphere pressure. Thecompounds product in liquid phase are diethyl ether, methanol and water