Research On Vanadium And Titanium Catalysts Supported On Activated Carbon

The development of the World's economy is seriously delayed by Acid Rain caused by sulfur dioxide pollution. Now flue gas desulfurization is one of the effective ways to control the release of sulfur dioxide. Flue gas desulfurization by carbon attracts boosting attentions due to its special advantages and becomes to be hot research topic. Activated carbon has big adsorption capacity and could be used as support. In this paper, vanadium and titanium catalysts loaded on five different activated carbons (coconut shell activated carbon, almond shell activated carbon, bamboo activated carbon, carrier activated carbon and furfural reside activated carbon ) are prepared, and the physical structure, chemical composition, surface chemistry and micro-expression of the supports and catalysts are investigated by N₂ physical adsorption/desorptio, XRD, XPS, FT-IR, SEM technologies. The catalytic activities of the supports and catalysts and the effectiveness of the supports are evaluated through the desulfurization reaction, and the influences on the catalysts' activities caused by reaction temperature and the content of the active phase are tested. Here can draw several conclusions as follows: 1. At proper reaction temperatures, all of the five activated carbon show catalytic activities for the oxidation of sulfur dioxide. Almond shell activated carbon expresses the most stable catalytic performance and is the best support among them. The key factor affecting the catalytic ability of activated carbon is not its special surface area and/or physical structure but its chemical composition and surface...