I'm not sure of actual hour requirements although I do know they do want at least 2000hrs.
Another key thing to have is Heavy Jet time, an instructor of mine who has a few thousand hrs in Citations was told by Emirates the Jet time is good although the aircraft has to be heavier!
I'm sure others can help more than I can.
G.A_S
* A search of this forum will probably help you alot if your'e looking for EK stuff.