Catalyst for dehydration of glycerin, preparation method thereof, and production method of acrolein using the catalyst

A preparation method of a catalyst for dehydration of glycerin, comprising the step of mixing one or more precursors selected from the group consisting of precursors of V, Fe, Nb, and Zn, a zirconium precursor, a phosphorus precursor, and a tungsten precursor, followed by drying and calcining to produce a catalyst represented by the following Chemical Formula 1:

• Zra(M1)b(M2)cWdPeHxOy [Chemical Formula 1]
• wherein, in Chemical Formula 1,
• M1 and M2 are the same as or different from each other, and are independently V, Fe, Nb, Zn, or a combination thereof;
• a, b, c, d, and e represent ratios of atoms, wherein a is 0.5 to 1, b is 0.01 to 0.3, c is 0.01 to 0.3, d is 0.01 to 0.3, e is 1 to 5, b/a is 0.01 to 0.6, c/a is 0.01 to 0.6, d/a is 0.01 to 0.6, and e/a is 0.1 to 10;
• and
• x and y are values determined according to a bonding state of crystallization water, and are independently 0 to 10.