Synthesis of methanol from CO2+H2

[Richard_Steele]

I was searching some info in this forum and I found something here:
https://www.physicsforums.com/showthread.php?t=160186

As far I know you've to mix carbon dioxide and hydrogen and the result is methanol.
I want to understand more technical information, like the amount of each gas that need to be combined, if heat/pressure has to be used, if some kind of catalyst has to be use...

update#1
http://img849.imageshack.us/img849/561/picture2gu.png

http://www.methanol.org/Methanol-Basics/Overview/How-is-Methanol-Made-.aspx

 

[Borek]

As far I know you've to mix carbon dioxide and hydrogen and the result is methanol.

It is far from being that easy. Basically that's what chemical engineering is about.