274
L. Ren et al.
Table 7.6
Estimated costs of deep decarbonization of industrial sectors in 2 °C scenario and 1.5 °C scenario
Iron and steel
output in 2050
(100 million t)
Proportion of long-process
CO
2 emission rate (t/t of steel)
CO
2 emission (100 million t)
7
40%
1.8
5.04
2 °C scenario
Option 1: CCS
technology
CCS cost (RMB/t)
Total CCS cost
(100 million RMB)
400
Approximately 850
Option 2:
Hydrogen
steelmaking
Hydrogen
consumption (t/t of
steel)
Hydrogen cost
(RMB/t)
Operational cost
(100 million RMB)
Coke replaced
(t/t)
Coke cost
Cost increase of
hydrogen steelmaking
(100 million RMB)
0.055
Approximately
29,000
2246
0.86
1444.8
Approximately 800
1.5 °C scenario
Option 1: CCS
technology
CCS cost (RMB/t)
Total CCS cost
(100 million RMB)
500
Approximately 2100
Option 2:
Hydrogen
steelmaking
Hydrogen
consumption (t/t of
steel)
Hydrogen cost
(RMB/t)
Operational cost (100
million RMB)
Coke replaced
(t/t)
Coke cost
Cost increase of
hydrogen steelmaking
(100 million RMB)
0.055
Approximately
35,000
5390
0.86
2889.6
Approximately 2500