Effect of zinc introduction on catalytic performance of ZSM-5 in conversion of methanol to light olefins
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Su-Hong Zhang
,
Zhi-Xian Gao
Abstract
The effect of Zn on the catalytic performance of ZSM-5 in the methanol-to-olefin conversion was investigated. The samples were characterised by X-ray diffraction, N2 adsorption, FTIR, temperature-programmed desorption of ammonia and water, and Py-IR. The experimental results revealed Znmodified ZSM-5 to show a lower selectivity to light olefin at the higher reaction temperature of 520°C but a higher selectivity to light olefin at lower temperatures. As a comparison, the catalytic performance of Ca-modified ZSM-5 for the methanol conversion is also given. From the above results, it is concluded that Zn may play another role in the methanol conversion in addition to tuning the surface acidic property after modification.
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© 2014 Institute of Chemistry, Slovak Academy of Sciences
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Artikel in diesem Heft
- Environmental catalysis — Topical issue
- Structured catalysts for methanol-to-olefins conversion: a review
- Diesel soot combustion catalysts: review of active phases
- State of the art in catalytic oxidation of chlorinated volatile organic compounds
- Effect of zinc introduction on catalytic performance of ZSM-5 in conversion of methanol to light olefins
- Mesoporous phosphated and sulphated silica as solid acid catalysts for glycerol acetylation
- Valorisation of bio-oil resulting from fast pyrolysis of wood
- Microwave hydrothermal synthesis, characterisation, and catalytic performance of Zn1−x MnxO in cellulose conversion
- Montmorillonite intercalated with SiO2, SiO2-Al2O3 or SiO2-TiO2 pillars by surfactant-directed method as catalytic supports for DeNOx process
- Fe- and Cu-oxides supported on γ-Al2O3 as catalysts for the selective catalytic reduction of NO with ethanol. Part I: catalyst preparation, characterization, and activity
- Characterization of LaRhO3 perovskites for dry (CO2) reforming of methane (DRM)
- Visible light photoelectrocatalytic degradation of rhodamine B using a dye-sensitised TiO2 electrode
- CdS/TiO2 composite films for methylene blue photodecomposition under visible light irradiation and non-photocorrosion of cadmium sulfide
- Photocatalytic air-cleaning using TiO2 nanoparticles in porous silica substrate
- Cost-effectiveness analysis to assess commercial TiO2 photocatalysts for acetaldehyde degradation in air
- Solid waste decontamination by thermal desorption and catalytic oxidation methods
