Ethanol to Aromatics on Modified H-ZSM-5 Part I: Interdependent Dealumination Actions
Seifert M, Marschall MS, Gille T, Jonscher C, Busse O, Paasch S, Brunner E, Reschetilowski W, Weigand JJ (2020)
Publication Type: Journal article
Publication year: 2020
Journal
Book Volume: 12
Pages Range: 6301-6310
Journal Issue: 24
Abstract
In this study a H-ZSM-5 zeolite (Si/Al=11) was modified by a stepwise treatment with steam, sodium hydroxide and hydrochloric acid. During progressing dealumination by various treatment methods, the drawbacks of initial post-synthetic steps, e. g. pore-filling by steam dealumination, are compensated by subsequent steps, e. g. washing by acid, which leads to a scientifically based preparation of required ZSM-5 zeolite. Solid-state properties of as-synthesized and modified zeolites are determined by structural (XRD, ICP-OES, NMR), textural (physisorption, laser scattering) and acid sites analysis (TPAD). Consequently, extended dealumination without structural damage is demonstrated. Its origin by framework dealumination and pore cleaning is verified in ethanol to hydrocarbon process (ETH) by shape-selective formation of coke and aromatics, characterized by “aromatics index” (AI).
Involved external institutions
Germany (DE)How to cite
APA:
Seifert, M., Marschall, M.S., Gille, T., Jonscher, C., Busse, O., Paasch, S.,... Weigand, J.J. (2020). Ethanol to Aromatics on Modified H-ZSM-5 Part I: Interdependent Dealumination Actions. ChemCatChem, 12(24), 6301-6310. https://doi.org/10.1002/cctc.202001344
MLA:
Seifert, Markus, et al. "Ethanol to Aromatics on Modified H-ZSM-5 Part I: Interdependent Dealumination Actions." ChemCatChem 12.24 (2020): 6301-6310.
BibTeX: Download