CO2 emissions from fossil –fueled power plant and industrial processes

CO2 emissions from fossil –fueled power plant: large point sources (IPCC data)

Power plant fuel Emissions from identified sources (Mt-CO2 per year Number of large point sources Average annual emissions per sources (Mt-CO2)
Coal 7984 2025 3.9
Natural gas 1511 1728 0.9
Oil 980 1108 0.9

CO2 emissions from industrial processes: large point sources (IPCC data)

Process Emissions from identified sources (Mt-CO2 per year Number of large point sources Average annual emissions per sources (Mt-CO2)
Cement production

930

1175

0.8

Integrated steel mills

630

180

3.5

Oil refineries

800

638

1.3

Reference

Stephen A. Rackley. Carbon Capture and Storage. 2010. Elsevier Inc.

Typical fossil fuel combustion flue gas characteristics

CO2 capture from flue gas is known as post-combustion capture. It is important to know the physical and chemical properties of flue gas.

Typical fossil fuel combustion flue gas characteristics

Parameter Typical range of values
Pressure At or slightly above atmospheric pressure
Temperature 30 – 80 or higher, depending on the degree of heat recovery
CO2 Coal-fired, 14 %Natural gas-fired, 4%
O2 Coal-fired, 5 %Natural gas-fired, 15%
N2 ~ 81 %
SOx Coal-fired, 500 – 5000 ppmNatural gas-fired, <1 ppm
NOx Coal-fired, 100 – 1000 ppmNatural gas-fired, 100 – 500 ppm
Particulates Coal-fired, 1000 – 10,000 mg per m3Natural gas-fired, 10 mg per m3

Carbon monoxide (CO) is not shown in the table but may also be present in the case of incomplete combustion as a result of a lack of oxygen in the combustion chamber.

Reference

Stephen A. Rackley. Carbon Capture and Storage. 2010. Elsevier Inc.