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A peer-reviewed article of this preprint also exists.
This version is not peer-reviewed
Submitted:
05 February 2023
Posted:
06 February 2023
You are already at the latest version
COMI-B | Carbon dioxide oxygen mixed injection - bottom blowing |
CCS | Carbon capture and storage |
CCU | Carbon dioxide oxygen mixed injection - bottom blowing |
CCUS | Carbon Capture, Utilization and Storage |
ES | Early smelting stage |
MS | Middle smelting stage |
LS | Late smelting stage |
Element | Reaction | ΔGθ/(J/mol) | ΔGθ1573K/ (kJ/mol) |
ΔGθ1873K/ (kJ/mol) |
|
---|---|---|---|---|---|
C | O2 + [C]=CO2(g) | -419050+42.34T | -352.45 | -339.75 | |
O2 + 2 [C]=2CO(g) | -281160-84.18T | -413.58 | -438.83 | ||
CO2(g) + [C]=2CO(g) | 137890-126.52T | -61.13 | -99.08 | ||
Fe | O2(g) +2Fe(l)=2(FeO) | -458980+87.62T | -321.15 | -294.87 | |
CO2(g) + Fe(l)=(FeO)+CO(g) | 48980-40.62T | -14.92 | -27.10 | ||
Si | O2 + [Si]=(SiO2) | -804880+210.04T | -474.49 | -411.48 | |
CO2(g) + 1/2 [Si]=1/2(SiO2)+CO(g) | -123970+20.59T | -91.58 | -85.40 | ||
Mn | O2 + 2 [Mn]=2(MnO) | -824460+253.88T | -425.11 | -348.94 | |
CO2(g) + [Mn]=(MnO)+CO(g) | -133760+42.51T | -66.89 | -54.14 | ||
P | O2+4/5 [P]+8/5(CaO)= 2/5(4CaO·P2O5) |
-845832+255.3T | -444.25 | -367.66 | |
CO2(g)+2/5 [P]=1/5(P2O5)+CO(g) | 13245+19.753T | 44.32 | 50.24 | ||
CO2(g)+2/5 [P]+4/5(CaO)= 1/5(4CaO·P2O5)+CO(g) |
-144446+43.22T | -76.46 | -63.49 |
Category | C/(%) | Si/(%) | Mn/(%) | P/(%) | S/(%) |
---|---|---|---|---|---|
Molten iron | 3.80~4.78 | 0.36~0.85 | 0.34~0.79 | 0.085~0.151 | 0.025~0.132 |
Average value | 4.51 | 0.58 | 0.55 | 0.125 | 0.054 |
Steel scrap | 0.14~0.25 | 0.18~0.62 | 0.35~1.50 | 0.013~0.048 | 0.018~0.052 |
Average value | 0.21 | 0.33 | 0.76 | 0.026 | 0.031 |
Pig iron | 4.08~4.85 | 0.47~1.14 | 0.41~0.85 | 0.101~0.178 | 0.052 ~0.152 |
Average value | 4.28 | 0.62 | 0.64 | 0.146 | 0.062 |
Lime/ (kg/t) |
Light burned dolomite/(kg/t) | Limestone /(kg/t) | Raw dolomite/(kg/t) | Mineral/ (kg/t) |
Sludge ball/(kg/t) |
---|---|---|---|---|---|
21.8 | 18.0 | 10.9 | 3.8 | 10.7 | 10.6 |
ES/(min) | MS/(min) | LS/(min) |
---|---|---|
<4.5 | 4.5≤t ≤10.5 | >10.5 |
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