Ethanol to aromatics on modified H-ZSM-5 Part II: An unexpected low coking

Research output: Contribution to journalResearch articleContributedpeer-review



In this study a commercial H-ZSM-5 zeolite (Si/Al=11) was post-synthetically modified by a combined dealumination procedure to adjust its catalytic properties for the selective formation of aromatics from ethanol. The solid-state properties of original and modified zeolites are determined by structural, textural and acidity analysis. The formation of aromatics and durability of the zeolites were investigated depending on space velocity or contact time in the catalyst bed. In particular, the formation rate and desorption of aromatics from solid-state surface as well as their tendency to form coke precursors by consecutive build-up reactions determine the formation of coke. Therefore, the rate of build-up and finished aromatization by hydride transfer (pre-determined by the kind, location and geometric arrangement of surface acid sites) and the statistical number of reaction events until final desorption at the specific contact time have to be harmonized to increase aromatics yield and to decrease catalyst decay by coke simultaneously.


Original languageEnglish
Pages (from-to)3878-3885
Number of pages8
JournalChemistry - An Asian Journal
Issue number22
Publication statusPublished - 2 Oct 2020

External IDs

Scopus 85092757050
ORCID /0000-0002-8928-8340/work/142235818
ORCID /0000-0001-7323-7816/work/142257426


Research priority areas of TU Dresden

DFG Classification of Subject Areas according to Review Boards

Subject groups, research areas, subject areas according to Destatis

ASJC Scopus subject areas


  • heterogeneous catalysis, kinetics, structure-activity relationships, sustainable chemistry, zeolites