Low-vanadium-content wide-active-temperature-window denitration catalyst and preparation method thereof
A technology of active temperature window and denitrification catalyst, applied in the field of denitrification catalyst, can solve the problems of insufficient low-temperature activity, poor anti-sulfur poisoning performance, low oxidation rate, etc., and achieve the effect of widening the low-temperature activity window, improving performance and reducing the amount of addition
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[0026] The present invention will be described in further detail below through specific embodiments, but the present invention is not limited to the following embodiments. Examples:
[0027] Table 1 Denitration performance test data
[0028]
[0029] Note: SO 2 The oxidation rate is the test value of 400℃; V 0 5 W 2 M 8 Ti-1 is calcined at 300℃ to process the sample; V 0.5 W 2 M 8 Ti-2 samples were calcined at 650°C; if they were made into a honeycomb catalyst, the wall thickness was 1.1mm.
[0030] among them,
[0031] (1) The prepared catalyst is V 2 O 5 -WO 3 -MoO 3 / TiO 2 , The series of catalysts prepared in the experiment are denoted as VxWyMzTi, where x, y, z represent V in the catalyst respectively 2 O 5 , WO 3 , MoO 3 The quality percentage content.
[0032] (2) The influence of catalyst preparation method on catalyst performance
[0033] Catalyst V 1 W 3 M 0 Ti, V 1 W 0 M 10 Ti, V 1 W 2 M 5 Ti, V 1 W 2 M 8 Ti, V 0.5 W 2 M 8 The preparation methods of Ti are all aging time 32 h...
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