By Heather Burlingame, Senior Production Editor | September 28, 2010

Astec Phoenix Phantom burner Astec Phoenix Phantom burner uses a new gas mixing method to reduce emissions. Performance in lean burn mode on natural gas is expected to be 20 ppm for nitrogen oxides and 200 ppm for carbon monoxide when using 3 percent oxygen, the company says. Instead of using gas injection tubes to put gas into the combustion air stream, the unit injects gas into 3-inch diameter turbulent mixing tubes as air passes through them.