Table 5.

Main components of CEGs found in open literature

Category	No.	Name	Formular	Essl et al. (2020)	Zhang et al. (2019)	Lammer et al. (2017)	Golubkov et al. (2015)	Golubkov et al. (2014)	Somandepalli et al. (2014)
Non-HC	1	Carbon dioxide	CO2	√	√	√	√	√	√
	2	Carbon monoxide	CO	√	√∗	√	√	√	√
	3	Hydrogen	H2	√	√∗	√	√	√	√
Alkane	4	Methane	CH4	√	√∗	√	√	√	√
	5	Ethane	C2H6	√	√∗	√	√	√	√
	6	Propane	C3H8	√	√∗				√
	7	n-Butane	C4H10	√	√∗				√
	8	Isobutane	C4H10						√
	9	n-Pentane	C5H12		√∗				√
	10	Isopentane	C5H12						√
Alkene	11	Ethylene	C2H4	√	√∗	√	√	√	√
	12	Propylene	C3H6		√∗
	13	1-Butylene	C4H8		√∗				√#
	14	2-Methyl propene	C4H8		√				√#
	15	trans-2-Butene	C4H8		√				√#
	16	cis-2-Butene	C4H8		√				√#
	17	1-Pentene	C5H10		√∗
	18	cis-2-Pentene	C5H10		√
	19	trans-2-Pentene	C5H10		√
	20	2-Methyl-1-butene	C5H10		√
	21	2-Methyl-2-butene	C5H10		√
	22	3-Methyl-1-butene	C5H10		√
	23	2-Methyl-1-pentene	C6H12		√∗
Alkyne	24	Ethyne	C2H2	√	√∗	√
	25	Propyne	C3H4		√∗				√
	26	1,3-Butadiene	C4H6		√∗
Aromatic HC	27	Benzene	C6H6		√∗				√
	28	Methylbenzene	C7H8						√∗
	29	Ethylbenzene	C8H10						√∗
	30	m & p-xylene	C8H10						√
Electrolyte	31	DMC	C3H6O3		√∗
	32	EMC	C4H8O3		√∗
	33	DEC	C5H10O3	√	√∗
Others	34	2,4-Dimethyl-1-heptene	C9H18		√∗
	35	Oxidane	H₂O	√	√
	36	Hydrogen chloride	HCl		√
	37	Oxygen	O2	√

∗ Substance was used to analyze the temperature boundary and ignition mode.

# The type of isomer cannot be determined.

For more information, refer to Essl et al. (2020); Zhang et al. (2019); Golubkov et al. (2014, 2015); and Somandepalli et al. (2014).