Kinetic models of methanol and dimethyl ether conversion to olefins over zeolite catalysts (Review)

Methanol-to-olefins process technology: current status and future prospects

“…The Union Carbide research group that developed the MTO technology later became part of UOP/ Norsk joint venture. A few recent reviews on the MTO processes are cited here as being most noteworthy (Tian et al 2015;Khadzhiev et al 2015;Kvisle et al 2008;Keil 1999;Stocker 1999).…”

Kinetic Modeling of Catalytic Olefin Cracking and Methanol-to-Olefins (MTO) over Zeolites: A Review

“…All the linearized constraints can be found in Table 2 in [132]. Except for the methylation and dimerization rates, reparameterization is performed according to Equations (22) and (25); Table 1 in [132] contains all dimensionless fitting parameters. Their number is drastically reduced by using the single-event methodology [20,21] in combination with the Evans-Polanyi relation [281] and the concept of thermodynamic consistency [246].…”

“…To the best of our knowledge, such an overview does not exist for the two processes mentioned above. Indeed, two reviews of MTO kinetic models do exist, namely those of by Khadzhiev et al [22] and by Keil [23] are available. The latter, however, was published in 1999; since then, both mechanistic understanding of the reaction and computational power have developed rapidly leading to the proposal of a variety of new models.…”

“…The latter, however, was published in 1999; since then, both mechanistic understanding of the reaction and computational power have developed rapidly leading to the proposal of a variety of new models. On the other hand, the work by Khadzhiev et al [22] from 2015 is a useful overview of various kinetic MTO studies, but only a few models are selected. Furthermore, the focus is not on the underlying reaction networks and modeling methodologies.…”

Deactivation kinetics of individual C6–C9 aromatics' generation from methanol over Zn and P co-modified HZSM-5

“…Many kinetic models 4,21-25 of methanol conversion over HZSM-5 have been published so far based on different catalysts, feed conditions and mechanism. According to the method and model complexity, they can be mainly categorized into two types: (1) lumping kinetics that treat components with similar reaction behavior as one species and assume reaction routes according to the macroscopic product distribution; 26,27 (2) single-event microkinetics that derive the kinetic equations from the chemical reactions between individual molecules. 28,29 In our previous work, we proposed a detailed kinetic model for the co-reaction of methanol and olens over HZM-5, in which each olen, aromatic and paraffin generation and interconversion are simulated individually.…”