Best Available Control Technology (BACT ) Guideline 1.5.6
Last Update: 10/15/2014

Metal Heat Treatment Oven**
Pollutant Achieved in Practice or in the SIP Technologically Feasible Alternate Basic Equipment
NOx50 ppmvd @ 3% O2 (0.061 lb/MMBtu) and use natural gas fuel5 ppmvd @ 3% O2 (0.006 lb/MMBtu) with the use of an SCR System***Use of electric furnace
**BACT will be established on a case-by-case basis to assure the lowest achievable emission rate, taking into account unique facility characteristics. ***Use of SCR system is feasible only when the unit's exhaust temperature is greater than or equal to 500 'F.

BACT is the most stringent control technique for the emissions unit and class of source. Control techniques that are not achieved in practice or contained in s a state implementation plan must be cost effective as well as feasible. Economic analysis to demonstrate cost effectiveness is requried for all determinations that are not achieved in practice or contained in an EPA approved State Implementation Plan.

This is a Summary Page for this Class of Source. For background information, see Permit Specific BACT Determinations on Details Page.