Intrinsic kinetics of methanol dehydration to dimethyl ether
Abstract：The intrinsic kinetics of methanol dehydration to dimethyl ether and the effect of operation conditions on the conversion of methanol were carried out in an isothermal integral fixed bed reactor over catalyst MD-2.The experiments were performed on the temperature 240～340 ℃,pressures 0.1～1.0 MPa,and liquid space velocities 0.9～4.0 h-1.The results indicate that the methanol conversion first increases then decreases with increasing temperature;the pressure has little effect on the methanol conversion;the methanol conversion decreases with increasing space velocity.Four kinds of kinetic models expressing with each component＇s fugacity are established based on different reaction mechanism and by parameter estimation method according to the experimental data.The analysis of residual error and statistic test show that the intrinsic kinetic equation based on the mechanism of Langmuir-Hinshelwood dissociation adsorption is reliable.
Keywords：methanol dehydrationdimethyl etherintrinsic kinetics
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)