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S‐PEEK as a Catalyst for Gas Phase OME Synthesis
Author(s) -
Kley Klara S.,
Grünert Anna,
Schmidt Wolfgang,
Schüth Ferdi
Publication year - 2021
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.202100191
Subject(s) - peek , catalysis , selectivity , methanol , polyether ether ketone , formaldehyde , monomer , chemistry , ether , ketone , polymer , polymer chemistry , sulfolane , organic chemistry , materials science , chemical engineering , solvent , engineering
Oxymethylene ethers are a diesel additive/alternative, which reduce pollutant emissions. Based on methanol, it is possible to produce them from renewable energy and CO 2 . Sulfonated ion exchange resins are known to catalyze the synthesis of OME in liquid phase. Here, we report that the sulfonated polymer polyether‐ether‐ketone (S‐PEEK) exhibits outstanding catalytic properties in the gas phase synthesis of OME n . PEEK was reacted with gaseous SO 3 to a degree of 22 % sulfonated monomer units. Using this material as a catalyst in the direct conversion of formaldehyde and methanol, an extraordinary selectivity to OME 1 and OME 2 of 93 % at equilibrium conversion of 55 % was obtained. Further, it was shown that the catalyst is stable for more than 60 h, and that with increasing reaction time selectivity to OME 2 increases.