(IMAGE) ETH Zurich Caption Methanol -- or its derivative dimethyl ether (shown left) -- is converted into ethylene (top center) on the surface of alumina. Credit Aleix Comas-Vives / ETH Zurich Usage Restrictions The image may be used by other media and online portals only if ETH Zurich is specifically mentioned as the copyright holder and only in connection with the relevant press release. Further distribution of images - for example, via download links - is permitted only with the approval of ETH Zurich (mediarelations@hk.ethz.ch). License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.