7 Development of Low Carbon Technology in China’s Iron …
271
Fig. 7.30 Promotion targets of key technologies of iron and steel industry. Source Ma 2015
pulverized coal injection, BF coal gas recovery, waste heat recovery from palletizing,
thick layer sintering, air leakage rate reduction, dry quenching, stamp coke-making,
coal moisture control, etc.
7.5.3 Analysis on Effectiveness of Zero Carbon Technology
Application in Iron and Steel Industry
7.5.3.1 Facilitating Low Carbon/Zero Carbon Development of Iron
and Steel Industry with Zero Carbon Electricity
As illustrated in Fig. 7.31, it is estimated by Energy Transformation Commission that
as the carbon intensity of EAF steel is far lower than BF steel in China, the increase in
the share of EAF steel will automatically lower the average carbon intensity of iron
and steel production. Even at the current carbon emission intensity of China’s power
sector (596 g CO 2 /kWh), EAF steel is merely 0.5 tCO 2 /t of steel, while the figure
reaches around 2.1 t CO 2 /t of steel for BF steel. Decarbonization of the power sector
will gradually bring down the carbon intensity of EAF steel to zero. Therefore,
two policies hold the key for decarbonization of China’s iron and steel industry:
first, continuously boosting the development of short-process steelmaking; second,
supporting the expansion of power generation from renewables and nuclear; both
of which being zero-carbon techniques. In the zero-carbon scenario, by 2050, the
output of short-process EAF steel is expected to reach 333 Mt, which translates to
zero-carbon power demand of 0.16 trillion kWh. Moreover, it is equally important
271
Fig. 7.30 Promotion targets of key technologies of iron and steel industry. Source Ma 2015
pulverized coal injection, BF coal gas recovery, waste heat recovery from palletizing,
thick layer sintering, air leakage rate reduction, dry quenching, stamp coke-making,
coal moisture control, etc.
7.5.3 Analysis on Effectiveness of Zero Carbon Technology
Application in Iron and Steel Industry
7.5.3.1 Facilitating Low Carbon/Zero Carbon Development of Iron
and Steel Industry with Zero Carbon Electricity
As illustrated in Fig. 7.31, it is estimated by Energy Transformation Commission that
as the carbon intensity of EAF steel is far lower than BF steel in China, the increase in
the share of EAF steel will automatically lower the average carbon intensity of iron
and steel production. Even at the current carbon emission intensity of China’s power
sector (596 g CO 2 /kWh), EAF steel is merely 0.5 tCO 2 /t of steel, while the figure
reaches around 2.1 t CO 2 /t of steel for BF steel. Decarbonization of the power sector
will gradually bring down the carbon intensity of EAF steel to zero. Therefore,
two policies hold the key for decarbonization of China’s iron and steel industry:
first, continuously boosting the development of short-process steelmaking; second,
supporting the expansion of power generation from renewables and nuclear; both
of which being zero-carbon techniques. In the zero-carbon scenario, by 2050, the
output of short-process EAF steel is expected to reach 333 Mt, which translates to
zero-carbon power demand of 0.16 trillion kWh. Moreover, it is equally important