how NOx devolping in cement rotory kiln.?

Answer 1

I'm not sure exactly what you are asking but here are a couple of links that discuss nox, cement and rotary kilns:

http://forskningsbasen.deff.dk/ddf/rec.external?id=dtu175249
http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4178194
http://www.patentstorm.us/patents/6183244-description.html
http://www.freepatentsonline.com/EP1235044.html