3 ms·
To put that in perspective, pure graphite or carbon (basically equivalent to anthracite) releases about 2.5 MWh of heat per ton of CO2 produced. Pure methane (
by Robotbeat 5y ago
To put that in perspective, pure graphite or carbon (basically equivalent to anthracite) releases about 2.5 MWh of heat per ton of CO2 produced.
Pure methane (if fully combusted) releases about 5.6 MWh of heat her ton of CO2 emitted.
Oil is somewhere in between.
In terms of electrical or mechanical (ie useful, low-entropy) energy produced per tonne of CO2 emitted, HHV efficiency typically 25-50%, so between 0.625 and 1.25 MWh/tonne of CO2 per tonne of coal and 1.4-2.8MWh/tonneCO2 for methane.