Regular ArticleThe Catalytic Conversion of Methyl Chloride to Ethylene and Propylene over Phosphorus-Modified Mg-ZSM-5 Zeolites
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Power-to-Liquid catalytic CO<inf>2</inf> valorization into fuels and chemicals: Focus on the Fischer-Tropsch route
2020, Journal of CO2 UtilizationCitation Excerpt :However, it is very hard to apply at industrial scale, as the γ-alumina is easily deactivated by water which is responsible for the blockage of the methanol dehydration active sites. [115] [116], Zeolites have been found to be in general more resistant to water and to have higher activity [116–120]. Zhang et al. reported that with a CuO-ZnO-Al2O3/HZSM-5 catalyst, a 15 % yield of DME could be obtained in a one-step process [110], while a DME yield of 21 % was observed by Ge et al. on a Cu-ZnO-ZrO2/H-ZSM-5 catalyst [121].
Valorization of chloromethanes by hydrodechlorination with metallic catalysts
2018, Catalysis TodayCitation Excerpt :These molecules are considerably more reactive than methane and could be converted by catalytic dechlorination or hydrodechlorination into valuable products such as light olefins. In recent literature [7–15], a new route based on the dechlorination of monochloromethane (MCM) to olefins is been investigated (See Scheme 1). MCM can be formed from methane and the hydrogen chloride obtained from the dechlorination of MCM.
Stability improvement of zeolite catalysts under hydrothermal conditions for their potential applications in biomass valorization and crude oil upgrading
2017, Microporous and Mesoporous MaterialsZeolite-supported iron catalysts for allyl alcohol synthesis from glycerol
2016, Applied Catalysis A: GeneralCitation Excerpt :Catalyst acidity has been correlated with acrolein formation, while basicity was shown to drive the reaction towards allyl alcohol formation [5,7]. Zeolite acidity can be typically reduced by dealumination [8,9], modification with phosphorus [10], alkali treatment [11], alkali metal exchange [12] amongst other methods. In the present research, we have modified the acidity of an iron-exchanged zeolite via rubidium deposition, aiming to enhance the rate of formation of allyl alcohol from glycerol.
Identification of the coke deposited on an HZSM-5 zeolite catalyst during the sequenced pyrolysis-cracking of HDPE
2014, Applied Catalysis B: Environmental