Table 1.

Carbon emission coefficients of various energy sources and conversion coefficients of standard coal.

i	coal	coke	crude	gasoline	kerosene	diesel fuel	fuel oil	natural gas
Bi (kgce/kg)	0.7143	0.9714	1.4286	1.4714	1.4714	1.4571	1.4286	1.33①
Ci (kg/kgce)	0.7559	0.855	0.5857	0.5538	0.5714	0.5921	0.6185	0.4483

Note: The carbon emission numbers refer to the research of [20,21]. The conversion coefficient of standard coal is referred to in the China Energy Statistical Yearbook 2020; ① Unit = kilogram of coal equivalent (kgce)/m³.