典型文献
Modeling of the effect of hydrogen injection on blast furnace operation and carbon dioxide emissions
文献摘要：
The effect of hydrogen injection on blast furnace operation and carbon dioxide emissions was simulated using a 1D steady-state zonal model. The maximum hydrogen injection rate was evaluated on the basis of the simulation of the vertical temperature pattern in the blast furnace with a focus on the thermal reserve zone. The effects of blast temperature and oxygen enrichment were also examined to estimate coke replacement ratio, productivity, hydrogen utilization efficiency, and carbon dioxide emission reduction. For blast temperature of 1200℃, the maximum hydrogen injection rate was 19.0 and 28.3 kg of H2/t of hot metal (HM) for oxygen enrichment of 2vol％ and 12vol％, respectively. Results showed a coke replacement ratio of 3–4 kg of coke/kg of H2, direct CO2 emission reduction of 10.2％–17.8％, and increased productiv-ity by up to 13.7％ depending on oxygen enrichment level. Increasing blast temperature further reduced the direct CO2 emissions. Hydrogen utilization degree reached the maximum of 0.52–0.54 H2O/(H2O + H2). The decarbonization potential of hydrogen injection was estimated in the range from 9.4 t of CO2/t of H2 to 9.7 t of CO2/t of H2. For economic feasibility, hydrogen injection requires revolutionary progress in terms of low-cost H2 generation unless the technological change is motivated by the carbon emission cost. Hydrogen injection may unfavorably af-fect the radial temperature pattern of the raceway, which could be addressed by adopting appropriate injection techniques.
文献关键词：
中图分类号：
作者姓名：
Volodymyr Shatokha
作者机构：
National Metallurgical Academy of Ukraine,Dnipro 49005,Ukraine
文献出处：
引用格式：
[1]Volodymyr Shatokha-.Modeling of the effect of hydrogen injection on blast furnace operation and carbon dioxide emissions)[J].矿物冶金与材料学报,2022(10):1851-1861
A类：
productiv,unfavorably
B类：
Modeling,hydrogen,injection,blast,furnace,operation,dioxide,emissions,was,simulated,using,1D,steady,state,zonal,model,maximum,rate,evaluated,basis,simulation,vertical,temperature,pattern,focus,thermal,reserve,zone,effects,oxygen,enrichment,were,also,examined,coke,replacement,productivity,utilization,efficiency,reduction,For,hot,metal,HM,12vol,respectively,Results,showed,direct,increased,by,up,depending,level,Increasing,further,reduced,Hydrogen,degree,reached,H2O,decarbonization,potential,estimated,range,from,economic,feasibility,requires,revolutionary,progress,terms,low,cost,generation,unless,technological,change,motivated,may,af,radial,raceway,which,could,be,addressed,adopting,appropriate,techniques
AB值：
0.464983
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