Your question;

"Why CH3OH dehydration is important in Catalyst Reaction?"

does not make much sense. What you are asking about?

From Wikipedia: "a dehydration reaction is usually defined as a chemical reaction that involves the loss of a water molecule from the reacting molecule."

Do you mean drying of methanol? Which catalyst and which reaction? If non aqueous conditions are required, then drying methanol to make it anhydrous is a must.

Really what is your exact point.

This is a good example when the person who asked the question is not interested in answers. 

See my question

Why some people ask the question but are not interested to get an answer? 

.

https://www.researchgate.net/post/Why_some_people_ask_the_question_but_are_not_interested_to_get_an_answer

Really Sorry, Actually, I don't know exactly about this field.So, I didn't know how can I asked to someone.

I explain again my situation. I read some papers. The paper handled with catalyst. Pt/TiO2 catalyst. They did experiment and compare Pt catalyst and Pt/TiO2 Catalyst.

In that paper, CH3OH was used and it was dehydrogenated. So, I asked " Why ch3oh dehydration is important in cataltyst reactions?"

I was just wondering why they used CH3OH, so I posted.

Hi, Oh.

I think that you have misspelled: dehydration is removal of water; dehydrogenation is removal of hydrogen from molecule. Methanol dehydrogenation is the first step of this and similar catalyst reaction. Therefore it is useful to compare activity of different catalyst for methanol dehydrogenation in order to assess their catalytic activity.

I hope that that this helps you.

Best regards.

Hi

dehydration of alcool is usually used as reaction model to characterize acidity of catalysts and accomplished by adsorption of probe molecules as pyridine, CO ....

Dear Abdela, 

please write the reaction of methanol dehydration.

Dear Yuii,

I said alcohol, you're right, I should have specified it generally concerns isopropanol as test reaction.

thank's for your observation

As Zorica Mojović said, dehydration n dehydrogenation both r very difrerent. Methanol doesn not undergo dehydration. Dehydrogenation of methanol leads to formation of formaldehyde and release of hydrogen.

Platinum catalysts include the hydrogenation of nitro compounds to amines and ketones to alcohols. 

Pt/tio2 catalyst is used for catalytic oxidation of formaldehyde. 

Methanol is used for production of formaldehyde in ur papr i guess.

Hi

yes it is very important as from the dehydration reaction you can produce DME which is one of the most important biofuel in the 21th Centuary

have a very good day

Hi

Please find the attached paper that might be useful

Regards,