The authoritative source on this is probably the US EPA AP-42 list of emission factors.
You could compare natural gas combustion in external vs internal. These are in terms of pounds of pollutant per mmbtu of fuel input.
In an uncontrolled natural gas turbine, you get 0.32lb/mmbtu NOx and 0.082lb/mmbtu CO. In a 4-stroke internal combustion engine, it's 4.08lb/mmbtu NOx and 0.317lb/mmbtu CO.
In a large boiler, it's 0.19 lb/mmbtu NOx and 0.082lb/mmbtu CO.
yurikovski t1_j1ez3ef wrote
Reply to How does the non-CO2 emissions of an external combustion engine compare to an internal combustion engine? by Past_Self_4845
The authoritative source on this is probably the US EPA AP-42 list of emission factors.
You could compare natural gas combustion in external vs internal. These are in terms of pounds of pollutant per mmbtu of fuel input.
In an uncontrolled natural gas turbine, you get 0.32lb/mmbtu NOx and 0.082lb/mmbtu CO. In a 4-stroke internal combustion engine, it's 4.08lb/mmbtu NOx and 0.317lb/mmbtu CO.
In a large boiler, it's 0.19 lb/mmbtu NOx and 0.082lb/mmbtu CO.