The size effect of titanium dioxide particles on desulfurization in a power plant

To study the effect of the different states and structures of titanium dioxide on the catalytic behavior of desulfurization during a combustion process, a titanium dioxide nano-catalyst was prepared, finding that its agglomeration is serious when calcined at 100 degrees C. As the calcination temperature increased to 500 degrees C, the agglomeration gradually weakens, and the uniformity of particles is enhanced, while remaining in the anatase structure. When the temperature was increased to 700 degrees C, the titanium dioxide was converted into the rutile structure, and fusion growth phenomenon occurs. Then calcium oxide desulfurization experiments with the titanium dioxide catalyst were carried out and it was found that when the calcination temperature is 500 degrees C, the maximum desulfurization efficiency in the sample is achieved. Another sample became fully rutile at 900 degrees C and the desulfurization efficiency began to improve.