HMIP tightens up on NO_x limits for gas turbines

The proposals come in revisions to an existing guidance note on gas turbines with an aggregated net thermal input of over 50MW. The original version was issued in January 1991, and the affected processes came under integrated pollution control (IPC) in April 1991.

Since then, several manufacturers have made considerable advances in burner design. HMIP has revised its guidance to effectively define such low-NO_x systems as the "b