How can you convert glycerol into Acrolein?

When Glycerol treated with dehydrating agents like H₂SO₄, P₂O₅ or KHSO₄ then it undergoes dehydration and remove all the water molecules to give unsaturated Aldehyde named Acrolein.

Related question:

How is glycerol obtained from propene?

How can you convert glycerol into Acrolein?

What is the product formed when glycerol react with Excess HI?

What is Noble’s oil and how can obtained from glycerol/glycerine?

What are different products obtained when glycerol is heated with oxalic acid at different temperature?