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- W3010263756 abstract "A comparative study was performed not only on the proton form of rho and PST-29, the first and second generations of the RHO family of embedded isoreticular zeolites, respectively, but also on their steam-dealuminated analogues, as catalysts for methylamines synthesis at 400 °C from ammonia and methanol. A similar yield in the sum of monomethylamine plus dimethylamine was observed for H-rho and H-PST-29. Steam treatment at 600 °C gave both zeolites an increase in catalyst lifetime, but which is much more apparent in H-PST-29, probably due to a larger decrease in strength of medium and strong acid sites, together with the mesopore formation. Dealumianted PST-29 showed a somewhat lower catalyst stability than H-mordenite, the former commercial catalyst for this reaction. However, it was found to exhibit a much higher yield in smaller methylamines and a comparable regenerability. • H-rho, H-PST-29, and their steam analogues are tested for methylamines synthesis. • H-PST-29 showed a similar yield in monomethylamine plus dimethylamine to H-rho. • Steaming of H-rho and H-PST-29 resulted in an increase in the catalytic lifetimes. • The steamed PST-29 is potentially useful as a catalyst in methylamines synthesis." @default.
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- W3010263756 date "2020-06-01" @default.
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- W3010263756 title "A comparative study of methylamines synthesis over zeolites H-rho and H-PST-29" @default.
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- W3010263756 doi "https://doi.org/10.1016/j.micromeso.2020.110150" @default.
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