Experimental implementation of a catalytic membrane reactor for the direct synthesis of DME from H2+CO/CO2

Mechanistic and multiscale aspects of thermo-catalytic CO2conversion to C1products

“…464 Zeolite membranes seem to offer a valid alternative, overcoming such problems, being stable at relatively high pressures and temperatures, and showing a relevant yield increase compared to traditional reactors. [465][466][467] Stable and efficient materials for membranes at process temperatures, pressures, and compositions represent a challenge for membrane reactors. 58 Moreover, separating water is challenging due to the similar kinetic diameters of H 2 O, CH 3 OH, CO 2 , and H 2 (0.30 nm, 0.38 nm, 0.33 nm, and 0.29 nm, respectively).…”

Recent Progress in Direct DME Synthesis and Potential of Bifunctional Catalysts

“…Rodriguez-Vega et al [154] studied a packed bed membrane reactor (PBMR) for direct DME synthesis by the hydrogenation of CO 2 and CO 2 /CO mixtures equipped with a hydrophilic LTA zeolite membrane to remove H 2 O. It is noted that LTA zeolite has superior permeation properties among the studied zeolites (LTX and SOD).…”

Deactivation of a Biomass-Derived Zirconium-Doped Phosphorus-Containing Carbon Catalyst in the Production of Dimethyl Ether from Methanol Dehydration

“…They have also studied different reactor configurations, including a packed bed membrane reactor with a highly hydrophilic membrane, for in situ removal of water from the reaction medium to displace the equilibrium of methanol production, its selective dehydration to DME, and the reverse water−gas shift reaction. 48,49 They have also widely analyzed the possibilities of DME as a sustainable source of hydrogen, through catalytic steam reforming, 50,51 and of light olefins, by the DME-toolefins (DTO) process. 47,52,53 Furthermore, this research group has been very productive in studying the deactivation processes of these catalysts, both the metal and the acidic phases, 54 which are of great importance from an industrial point of view.…”

“…They have provided very relevant and high-impact contributions focused on the design of novel bifunctional structured catalysts − and the development of kinetic models, − taking into account the specific reaction conditions of these processes and the catalyst deactivation. They have also studied different reactor configurations, including a packed bed membrane reactor with a highly hydrophilic membrane, for in situ removal of water from the reaction medium to displace the equilibrium of methanol production, its selective dehydration to DME, and the reverse water–gas shift reaction. , They have also widely analyzed the possibilities of DME as a sustainable source of hydrogen, through catalytic steam reforming, , and of light olefins, by the DME-to-olefins (DTO) process. ,, Furthermore, this research group has been very productive in studying the deactivation processes of these catalysts, both the metal and the acidic phases, which are of great importance from an industrial point of view. They have proposed a relevant methodology for a simultaneous computation of the kinetic parameters of complex reaction networks and deactivation kinetics, with the added difficulty of including different reactor configurations and reactions involving the deposition of solid carbonaceous compounds and coke …”