Zeolite Particle (image) DOE/Lawrence Berkeley National Laboratory Share Print E-Mail Caption A scanning electron microscopy (SEM) image showing particles of zeolite, a catalyst that is used to convert ethanol to high-value fuels. The particles measure about 15 microns in length. Credit Pacific Northwest National Laboratory Usage Restrictions None Share Print E-Mail 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.