The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A series of Si-modified membranes were prepared by chemical vapor deposition using 40 γ-alumina tubular membranes as supports. Their hydrogen permeance ranged from 0.028 to 17.6 m 3 /m 2 h atm and H 2 /N 2 selectivity (permeance ratio) ranged from 12.6 to 72 at 600°C. The selectivity to isobutane ranged from 40 to 240 at 300°C and could be higher at a higher temperature...