Selective Catalytic Reduction (SCR) of Nitric Oxide with Ammonia over Vanadia-Based and Pillared Interlayer Clay-Based Catalysts

摘要

The selective catalytic reduction (SCR) of nitric oxide (NO) with ammonia (NH{sub}3) over vanadia-based and pillared interlayer clay-based monolith honeycomb catalysts using a laboratory laminar-flow reactor was investigated. To simulate different combustion gases, a number of gas compositions (N{sub}2, O{sub}2 and NO) were used. A Fourier transform infrared (FTIR) spectrometer was used to determine the concentrations of the major product species (NO, NH{sub}3, N{sub}2O, and NO{sub}2). The effects of various parameters including reaction temperature, oxygen concentration, NH{sub}3-to-NO ratio, space velocity, heating area, catalyst arrangement, and vanadium coating on NO removal were investigated.