An investigation on the role of Re as a promoter in Ag Cs Re/α-Al 2 O 3 high-selectivity, ethylene epoxidation catalysts

Ethylene epoxidation over supported silver catalysts – influence of catalyst pretreatment on conversion and selectivity

“…Selectivity to ethylene oxide over neat silver is typically mediocre . It can be, however, enhanced by doping the catalysts with different promoters . The most commonly used promotors are cesium and rhenium .…”

“…It has been reported that, during the start‐up of the ethylene epoxidation in laboratory scale, a dynamic behavior of the catalyst has been observed before reaching the steady state . The selectivity to ethylene oxide increases with time‐on‐stream while the ethylene conversion goes through a maximum …”

Defect stabilized gold atoms on graphene as potential catalysts for ethylene epoxidation: a first-principles investigation

“…6 Many approaches have been developed to achieve higher selectivity to EO, including morphology and size control of the TM NPs, alloying with different TMs and the utilization of novel promoters. [10][11][12][13][14][15][16][17] Au is also a Group IB metal but has long been considered to be catalytic inert due to its nobleness in bulk form. Torres et al studied the epoxidation mechanism of ethylene on an oxygen-atom-covered Au(111) surface theoretically.…”

Ethylene epoxidation in a low-temperature parallel plate dielectric barrier discharge system with two frosted glass plates

“…EO is commercially produced from the gas-phase partial oxidation of ethylene or ethylene epoxidation over Ag/low surface area (LSA) a-Al 2 O 3 catalysts with an addition of promoters [1][2][3][4][5][6].…”