Table 1. Comparison of properties of... | Emerald Publishing

Table 1.

Comparison of properties of petrol and methane

Parameter	Petrol	Methane
Formula	C₄–C₁₂	CH₄
C/H ratio: %	0.56	0.25
Molecular weight: kg/kmol	98	16
Density of standard conditions: kg/m³	720	0.67
Auto-ignition temperature: °C	350	540
Research octane number	92	125
Stoichiometric air–fuel ratio	14.6	17.24
Quenching distance: mm	2.02	2.03
Flammability limit: vol %	5.3/14	1.4/7.6
Laminar burning velocity: m/s	0.45	0.43

Parameter	Petrol	Methane
Formula	C₄–C₁₂	CH₄
C/H ratio: %	0.56	0.25
Molecular weight: kg/kmol	98	16
Density of standard conditions: kg/m³	720	0.67
Auto-ignition temperature: °C	350	540
Research octane number	92	125
Stoichiometric air–fuel ratio	14.6	17.24
Quenching distance: mm	2.02	2.03
Flammability limit: vol %	5.3/14	1.4/7.6
Laminar burning velocity: m/s	0.45	0.43

Source: Pan et al. (2018)