Cheap Asphalt Provides 'Green' Carbon Capture (IMAGE) Rice University Caption Each grain of a powder drawn from asphalt has the ability to capture more than its own weight in carbon dioxide under pressure. The material invented at Rice University is intended to separate carbon dioxide from streams at natural gas wellheads. Credit Jeff Fitlow/Rice University Usage Restrictions For news reporting purposes only. 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.