Kinetics of methyl tertiary butyl ether liquid phase synthesis catalyzed by ion exchange resin—I. Intrinsic rate expression in liquid phase activities

Thermodynamic Analysis of the Experimental Equilibria for the Liquid-Phase Etherification of Isobutene with C1 to C4 Linear Primary Alcohols

“…Results depicted in Figure 1 show that, irrespectively of the used catalyst, at LHSV of about 2 h -1 the calculated Γ a values can be considered equal to the thermodynamic equilibrium constant values, K MTBE , quoted in literature [24][25][26][27][28][29][30] , within the margin of experimental error, for both temperatures. For higher LHSV,…”

Enhancing MTBE rate equation by considering reaction medium influence

“…Recent work shows that the reaction system is more complex. Previous rate expressions (Rehfinger and Hoffmann, 1990;Parra et al, 1994) are quite inaccurate for IB/MeOH molar ratios (RlBmeOH) far from the stoichiometric one. Moreover, it has been realized that liquid-phase composition influences the reaction rate to some extent.…”

“…The most widely used rate equation for the liquid phase of MTBE synthesis taking into account the nonideality of the system is that proposed by Rehfinger and Hoffmann (1990). It is based on a LHHW mechanism in which isobutene, methanol, and MTBE adsorb on one catalytic center, with the surface reaction being the rate-limiting step.…”

“…With the aim of finding a rate equation useful in a wide range of IB and MeOH concentrations, and as a consequence of the nonideality of the liquid phase, Rehfinger and Hoffmann (1990) performed their kinetic analysis in terms of the activities of the compounds that take part in the reaction. Recent work shows that the reaction system is more complex.…”

“…These studies were performed by using pure isobutene (Zhang and Datta, 1995), C, cuts (Ancillotti et al, 1977;Gicquel and Torck, 1983;Parra et al, 1994), and C,-like streams (Ancillotti et al, 1978;Voloch et al, 1986;Rehfinger and Hoffmann, 1990) as the IB source. The reaction is mainly described as a heterogeneous catalytic one and rate equations are usually derived by the LangmuirHinshelwood-Hougen-Watson (LHHW) or Eley-Rideal (ER) formalisms (Gicquel and Torck, 1983;Rehfinger and Hoffmann, 1990;Parra et al, 1994;Zhang and Datta, 1995). Some…”