Water-resistant sulfur-resistant ultralow-temperature strip-shaped denitration catalyst and preparation method thereof

The invention relates to the technical field of denitration catalysts, in particular to a water-resistant sulfur-tolerant ultralow-temperature strip-shaped denitration catalyst which comprises a carrier, an active component, a strength additive, a low-temperature and wide-temperature active additive and a defoaming agent. The carrier is a mixture of titanium dioxide and activated carbon; the active component is crystal phase V2O5; the strength auxiliary agent is glass fiber, boric acid and silicon dioxide; the low-temperature and wide-temperature active auxiliary agent is one or two of CeO2, CoO and Cr2O3; the defoaming agent is lactic acid. According to the invention, V2O5 is taken as an active component, a mixture of titanium dioxide and activated carbon is taken as a carrier, one or two of CeO2, CoO and Cr2O3 are taken as low-temperature and wide-temperature active auxiliary agents, and a low-temperature active window is widened through the synergistic effect of crystal phase V2O5 and one or two of CeO2, C