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.
Electrochemically assisted metalloporphyrins demetallisation can be performed employing a unique palladium membrane without surface deactivation; in other words, palladium foils can be used several times. Vanadyl tetraphenylporphyrin (VO-TPP) or nickel tetraphenylporphyrin (Ni-TPP) dissolved in CH 3 Cl (nonemulsified media) are converted, producing hydrogenated porphyrins and/or free metal...
The conversion of pyridine (PY), quinoline (QUI) and meso-tetraphenylporphyrin (TPP) using active hydrogen passing through a Pd membrane under mild conditions (25°C and ambient pressure) by applying −1.92mAcm −2 is reported. Moreover, some results regarding VGO and diesel hydrotreating, under similar conditions, are shown. Relative kinetic conversion constants (k′), calculated for each tested...
Copper–terbia and copper–gadolina supported electrolyte SOFCs have been prepared by using standard procedures; such as, tape casting, dual tape casting, painting and impregnation. Anode XRD patterns analysis lead to the following chemical formulas: TbO 1.823 –CuO–Zr 0.8 Y 0.2 O 1.9 and Gd 2 O 3 –CuO–Zr 0.8 Y 0.2 O 1.9 . Since...
Conjugated dienes content is one of the factors for determining the quality of gasoline. Owing to their easy polymerization, the presence of these compounds decreases the quality of the product. Although UOP-326, the traditional method for their determination, is still in use, it has some disadvantages such as: long analysis time, incomplete reaction with some conjugated dienes, and the interference...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.