Preparation of Ni-MCM-41 by equilibrium adsorption — Catalytic evaluation for the direct conversion of ethene to propene

Bridging the Gap between Industrial and Well‐Defined Supported Catalysts

“…[218] Other products are methane,1-butene,aswell as cis-and trans-2-butenes.Little is known about the nature of the active site(s) on these Fe-and Mo-based catalysts or the actual mechanism of the ethylene into propylene conversion, and proposed reaction intermediates include metallacarbenes. [221,222] Ni ions loaded into MCM-41 by an ion-exchange method afforded 55 %ethylene conversion at 400 8 8Ci naf low reactor with as electivity for propylene and butenes of 54 and 35 %, respectively. [221,222] Ni ions loaded into MCM-41 by an ion-exchange method afforded 55 %ethylene conversion at 400 8 8Ci naf low reactor with as electivity for propylene and butenes of 54 and 35 %, respectively.…”

Propylene production technology: Today and tomorrow

“…Twenty years later, the researchers of the Tokyo Institute of Technology showed the possibility of using SAPO 34 for the prep aration of propylene from ethylene with a yield of 52.2 wt % at 71.2% conversion [162]. Numerous stud ies of catalysts based on and MCM 41 [168][169][170][171][172][173][174][175][176] seemed not quite successful. The propylene selectivity did not exceed 50% even when ethylene conversion was varied widely from 40 to 80%.…”

Comparison of differently synthesized Ni(Al)MCM-48 catalysts in the ethene to propene reaction

“…For this process heterogeneous catalysts like SAPO-34 [2][3][4][5], ZSM-5 [6] and alumina supported tungsten hydride [7] have been studied. Furthermore, MCM-41 functionalized via template ion exchange (TIE) [8][9][10][11] or equilibrium adsorption [12] catalyzes the ETP reaction. Feeding ethanol, results using Ni-MCM-41 (TIE) [13] and Ni-FSM-16 (TIE) [14] are as well published.…”