Title

LOW-CO2-EMISSION BLAST FURNACE WITH H2-RICH GAS AND CO-RICH GAS MIXTURE INJECTION

LOW-CO2-EMISSION BLAST FURNACE WITH H2-RICH GAS AND CO-RICH GAS MIXTURE INJECTION

Authorship

WANG, GANG; HE, KUN; ZHAO, YUNJIAN; ZOU, ZHONGPING; NIU, QUN; LI, PENG; HOU, SHIFENG

WANG, GANG

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HE, KUN

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ZHAO, YUNJIAN

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ZOU, ZHONGPING

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NIU, QUN

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LI, PENG

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HOU, SHIFENG

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DOI

10.5151/2594-357X-40859

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Abstract

THE PAPER PRESENTS A LOW-CO2-EMISISON BLAST FURNACE WITH H2-RICH GAS AND CO-RICH GAS MIXTURE INJECTION. IT SUMMARIES THE DIFFERENCES OF H2 AND CO APPLIED AS THE REDUCING AGENTS ON THE SURFACE OF ORES IN TERMS OF ADSORPTION, REACTION DYNAMICS AND SURFACE MORPHOLOGY, ATTESTING TO THAT INJECTION OF GAS MIXTURE ENRICHED WITH CO AND H2 OF PROPER CONCENTRATIONS INTO BLAST FURNACES LEADS TO ENHANCED REDUCTION REACTION. IT PROVIDES ANALYSES ON THE FEASIBILITY OF H2-RICH GAS AND CO-RICH GAS MIXTURE INJECTION PROCESS, ITS APPLICATION TO BLAST FURNACES, AND THE SAFETY OF TUYERE EQUIPMENT AND THE RELIABILITY OF GAS TRANSMISSION SYSTEMS. IT ALSO INTRODUCES THE BENEFITS OF BLAST FURNACE: WITH THE H2-RICH GAS AND CO-RICH GAS MIXTURE INJECTION VOLUME IN THE RANGE OF 50-75 NM3/T.HM, THE AVERAGE REPLACEMENT RATIO IS 0.5-0.57 KG/NM3, SEEING A REDUCTION OF CO2 EMISSIONS UP TO 5~10% IF COMPARED WITH THE CONVENTIONAL PRACTICES. THE LOW-CO2-EMISISON BLAST FURNACE IS A COST- AND TECHNOLOGY-COMPETITIVE, AND ABOVE ALL, LOW-CO2-EMISSION IRONMAKING SOLUTION. IT’S A PROMOTION-WORTHY APPROACH TO DECARBONIZATION OF INTEGRATED IRON & STEEL WORKS.

THE PAPER PRESENTS A LOW-CO2-EMISISON BLAST FURNACE WITH H2-RICH GAS AND CO-RICH GAS MIXTURE INJECTION. IT SUMMARIES THE DIFFERENCES OF H2 AND CO APPLIED AS THE REDUCING AGENTS ON THE SURFACE OF ORES IN TERMS OF ADSORPTION, REACTION DYNAMICS AND SURFACE MORPHOLOGY, ATTESTING TO THAT INJECTION OF GAS MIXTURE ENRICHED WITH CO AND H2 OF PROPER CONCENTRATIONS INTO BLAST FURNACES LEADS TO ENHANCED REDUCTION REACTION. IT PROVIDES ANALYSES ON THE FEASIBILITY OF H2-RICH GAS AND CO-RICH GAS MIXTURE INJECTION PROCESS, ITS APPLICATION TO BLAST FURNACES, AND THE SAFETY OF TUYERE EQUIPMENT AND THE RELIABILITY OF GAS TRANSMISSION SYSTEMS. IT ALSO INTRODUCES THE BENEFITS OF BLAST FURNACE: WITH THE H2-RICH GAS AND CO-RICH GAS MIXTURE INJECTION VOLUME IN THE RANGE OF 50-75 NM3/T.HM, THE AVERAGE REPLACEMENT RATIO IS 0.5-0.57 KG/NM3, SEEING A REDUCTION OF CO2 EMISSIONS UP TO 5~10% IF COMPARED WITH THE CONVENTIONAL PRACTICES. THE LOW-CO2-EMISISON BLAST FURNACE IS A COST- AND TECHNOLOGY-COMPETITIVE, AND ABOVE ALL, LOW-CO2-EMISSION IRONMAKING SOLUTION. IT’S A PROMOTION-WORTHY APPROACH TO DECARBONIZATION OF INTEGRATED IRON & STEEL WORKS.

Keywords

Gas injection; H2-rich gas and CO-rich gas mixture; low-CO2-emission Blast Furnace; application resu

Gas injection; H2-rich gas and CO-rich gas mixture; low-CO2-emission Blast Furnace; application result