Disclosed are a catalyst for synergistic control of oxynitride and mercury and a method for preparing the same. The catalyst includes the following components by
mass percentage: a carrier: TiO2 72%-98.6%,
active components: V2O5 0.1%-5%, WO3 1%-10%, Cr2O3 0.1%-5% and Nb2O5 0.1%-5%, and a co-catalyst of 0.1%-3%. The present invention can be used for reducing the oxynitrides in a
flue gas, meanwhile oxidizing zero-valent mercury into bivalent mercury and then controlling the reactions, has relatively high denitration performance and also has high
mercury oxidation performance; compared with current commercial SCR catalysts, the
mercury oxidation rate of the catalyst is improved to a great extent, which can adapt to the requirements for mercury removal in China's
coal-fired power plants, the conversion rate of SO2 / SO3 is relatively low, and the catalyst has a better anti-poisoning ability, and is a new catalyst with a low cost and high performance.