Format:
Online-Ressource
ISSN:
1099-0682
Content:
Abstract: Zeolites are widely used in petrochemical processes and refineries due to their well‐ordered microporous network and large surface area. However, the diffusion of reactants and products is hampered by the narrow microporous channels, causing limitations. To overcome this challenge, modifying the pore structure is crucial, and the chemical etching technique is a powerful tool that introduces mesopores and macropores, consequently enhancing mass transfer and accessibility. Diverse chemical etching methods have been invented, including exposure to both acids (organic/inorganic acids), alkali (organic/inorganic alkali), and neutral etchants (e. g., ammonium fluoride). This review summarizes and assesses the chemical etching methods and their relevance to catalytic cracking reactions, methanol to hydrocarbons (MTH), and biomass conversion. The potential of zeolites with modified pore structures has motivated researchers to develop novel methods to tackle the practical challenges associated with their applications.
In:
day:26
In:
month:07
In:
year:2023
In:
extent:19
In:
European journal of inorganic chemistry, Weinheim : Wiley-VCH, 1998-, (26.07.2023) (gesamt 19), 1099-0682
Language:
English
DOI:
10.1002/ejic.202300314
URN:
urn:nbn:de:101:1-2023072715085012931243
URL:
https://doi.org/10.1002/ejic.202300314
URL:
https://nbn-resolving.org/urn:nbn:de:101:1-2023072715085012931243
URL:
https://d-nb.info/1297471865/34
URL:
https://doi.org/10.1002/ejic.202300314
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