# Removal of water from sulfuric acid

Suppose I have a dehydration reaction of methanol to produce methoxymethane: $$\ce{2 CH3OH(l) ->[H_2SO_4] C2H6O(g) + H2O(l)}$$ Usually, people will use sulfuric acid to dehydrate the methanol. Assuming all the methanol was reacted, how do I get rid of the water in the sulfuric acid? Will simply heating the sulfuric acid be sufficient?