Tīmeklis2024. gada 6. marts · Production of granular Fe-ZSM-5 was further explored, and the fixed bed adsorption experiment was carried out. The adsorption capacity of granular Fe-ZSM-5 to PX can reach 45.64 mg·g –1 under better process conditions, which is superior to ZSM-5 zeolites and activated carbon. Tīmeklis2024. gada 24. aug. · Fe-ZSM-5 catalysts modified by Cu and Ce by aqueous solution ion-exchange and incipient wetness impregnation methods were tested in the selective catalytic reduction of NOx with NH3. A variety of characterization techniques (NH3-SCO, BET, XRD, XPS, UV-Vis, NH3-TPD, H2-TPR) were used to explore the changes of …

NOx reduction by CO over Fe/ZSM-5: A comparative study of …

Tīmeklis2003. gada 4. okt. · The local structure of Fe in Fe−ZSM-5 prepared by solid-state exchange was investigated with XAFS. Fe K-edge spectra were taken at liquid nitrogen temperature for samples with Fe/Al ratios of 0.33, 0.66, and 0.80. The radial structure function (RSF) of He- and CO-pretreated Fe−ZSM-5 shows two main peaks, one at … TīmeklisIron modified ZSM-5 catalysts are shown to be effective for this reaction using H 2 O 2 as the oxidant. However, the high consumption of H 2 O 2 over this catalyst presents … stuart roberts securitas

A hierarchical Fe/ZSM-5 zeolite with superior catalytic

Tīmeklis2024. gada 31. aug. · Fe-ZSM-5-In possessed enhanced acid amount and better distribution of framework Fe 3+ species than Fe/ZSM-5-Im. The results of catalytic performance evaluation show that the propylene yield is improved by the Fe modified ZSM-5 additives due to enhanced acid content and acid strength. Tīmeklis2009. gada 28. dec. · In this work, for Fe/ZSM-5-C sample, it attains 20% N2O conversion at 510 °C, which is lower by >70 °C compared to the commercial one with … Tīmeklis2024. gada 15. dec. · To characterize the chemical state of Fe centers in ZSM-5, X-ray photoelectron spectroscopy (XPS; Thermal ESCALAB 250) is performed by using Al … stuart robertson footballer