Assessment of utilization potential of biomass volatiles and biochar as a reducing agent for iron ore pellets

Das, Dipika; Anand, Amrit; Gautam, Shalini; Rajak, Vinay Kumar

doi:10.1080/09593330.2022.2102936

Cited by 11 publications

(4 citation statements)

References 32 publications

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“…This finding suggests that biochar has the potential to reduce the amount of coke required for iron production and thus can mitigate the overall cost and environmental concerns . The presented study of Fe 2 O 3 and FeO residue analysis was conducted on composite pellets containing varying proportions of coke and biochar Figures and present a graph of Fe 2 O 3 and FeO residue percentages.…”

Section: Resultsmentioning

confidence: 99%

“… 23 The presented study of Fe 2 O 3 and FeO residue analysis was conducted on composite pellets containing varying proportions of coke and biochar. 24 Figures 10 and 11 present a graph of Fe 2 O 3 and FeO residue percentages. At a reduction temperature of 1200 °C, the proportion of the Fe 2 O 3 residue exceeded 30%, whereas at a reduction temperature of 1300 °C, it fell below 10%.…”

Section: Resultsmentioning

confidence: 99%

“…23 The presented study of Fe 2 O 3 and FeO residue analysis was conducted on composite pellets containing varying proportions of coke and biochar. 24 In addition to temperature control, the duration of reduction plays a crucial role in determining the quality of the produced iron. Specifically, maintaining pellets at high temperatures for extended durations improves metallization and increases the yield of metallic iron, 26 thereby improving the quality of the produced iron and increasing the efficiency of the ironmaking process.…”

Section: Reduction Behavior On Composite Pelletsmentioning

confidence: 99%

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Potential of Pinewood Biochar as an Eco-Friendly Reducing Agent in Iron Ore Reduction

Chuanchai,

2024

ACS Omega

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This study investigated the optimal proportion of biochar derived from pinewood pellets (PW) and coke as reducing agents for the carbothermal reduction of iron ore at high temperatures. Thermogravimetric analysis, elemental analysis, X-ray fluorescence, and scanning electron microscopy were used to characterize the raw materials. To determine the effect of biochar proportion on reduction efficiency, presented as metallization, metallized pellets were subjected to chemical analysis, including total iron (T.Fe) analysis, metallic iron (M.Fe) analysis, and residual Fe2O3 and FeO analysis. The results indicated that the addition of biochar derived from PW, with coke as a reducing agent, considerably increased the efficiency of carbothermal reduction. Optimal reduction conditions were established at a reduction temperature of 1300 °C and a holding time of 20 min, with 20% coke and 80% pinewood char. In summary, biochar derived from PW can be used as an alternative to coke as a reducing agent in the iron reduction process. In addition, biomass can be used as a reducing agent to mitigate carbon consumption by reducing the amount of coke required in iron production.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Reduction Behavior On Composite Pelletsmentioning

confidence: 99%

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Potential of Pinewood Biochar as an Eco-Friendly Reducing Agent in Iron Ore Reduction

Chuanchai,

2024

ACS Omega

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“…Proximate and ultimate analyses and calorific value determination: Proximate analysis (Ash(A), Moisture(M), Volatile Matter (VM), and Fixed Carbon (FC) contents) of biomass samples and their chars was performed following the standard methods (ASTM E871-82, E1755-01, and E872-82) [14,15].The difference determined the F.C. content.…”

Section: Methodsmentioning

confidence: 99%

Untitled

2023

PPS

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The transportation industry mainly uses conventional fuel like petrol and diesel, which produces greenhouse gases and cause serious environmental concerns. A clean, sustainable renewable fuel is needed to minimize the high carbon footprint and emissions. This study focuses on producing Hythane(mainly a mixture of hydrogen and methane) from biomass through the pyrolysis route. Sawdust and groundnut shell is slowly pyrolyzed in the vertical reactor to produce hythane gas. The weight loss profile was studied through a thermogravimetric analyzer, and the effect of temperature on hythane gas composition was analyzed by gas chromatography. The hythane gas contains almost 40%-45% of hydrogen and 12 to 25% methane along with oxides of carbon, which depends upon temperature and feedstock types.

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