I don't know if this has been posted before, but I'm heading out the door so it will be a quick abreviated, post.
Zeolites are an important type of physical catalyst, widely used in the Petrochemical Industry for "cracking" of oil into other products, formation of chemicals, etc. There is ALOT of research (do a Web search) going on with them, as they have the potential to greatly simplify the creation of organo-chemicals, while reducing the amount of unwanted side products and quantities of solvents, etc.
Here's one paper on Methylamine that's interesting: http://www.ub.utwente.nl/webdocs/ct/1/t0000007.pdf (http://www.ub.utwente.nl/webdocs/ct/1/t0000007.pdf)
Later..