Blending Properties of MTBE and Other Oxygenates in Gasoline

Deactivation of macroporous ion-exchange resins by acetonitrile and inhibition by water in the simultaneous synthesis of ethyltert-butyl ether (ETBE) andtert-amyl ethyl ether (TAEE)

“…This was somehow expectable since typical errors in the determination of pre-exponential factors of kinetic constants for chemical reactions are often up to one order of magnitude larger than the estimate value itself. 50 The derived rate constants k d from Table 4 values for a first order deactivation within 313–353 K ranged from 1.13 × 10 −3 to 4.77 × 10 −3 min −1 and the apparent rate constants ranged from 7.53 × 10 −4 to 5.97 × 10 −3 min −1 . The estimated activation energy for the overall deactivation process caused by the ACN presence on A-35 was determined to be 33.1 ± 1.4 kJ mol −1 .…”

Conceptual Design of Equilibrium Reactor−Reactive Distillation Flowsheets

“…The industrial flowsheets for ETBE and MTBE production are identical (see Figure ). The reactants are fed to a pre-reactor (isothermal or adiabatic), where chemical equilibrium is nearly reached.…”

“…The chosen ranges for the design variables are shown in Table . The range of reactor temperatures considered is 50−80 °C which corresponds to the industrially chosen range of reactor temperatures . The ranges for the reflux and reboil ratio cover a wide range of operating conditions for the column.…”