- Table AA-2 to Subpart AA of Part 98—Kraft Lime Kiln and Calciner Emissions Factors for CH4 and N2O

Fuel Fossil fuel-based emissions factors (kg/mmBtu HHV) Kraft rotary lime kilns Kraft calciners aCH4N2O CH4N2O Residual Oil (any type)0.002700.00270.0003 Distillate Oil (any type)0.002700.00270.0004 Natural Gas0.002700.00270.0001 Biogas0.002700.00270.0001 Petroleum coke0.00270b NAb NA Other FuelsSee Table C-20See Table C-2See Table C-2

a Includes, for example, fluidized bed calciners at kraft mills.

b Emission factors for kraft calciners are not available.

[78 FR 71965, Nov. 29, 2013, as amended at 81 FR 89264, Dec. 9, 2016]