Correction of the parameters reported in the paper “Hot Coke Strength in CO&lt;sub&gt;2&lt;/sub&gt; Reaction” [ISIJ International, Vol. 62 (2022), No. 3, pp. 606-608]

Saito, Yasuhiro; Tsukamoto, Chiho

doi:10.2355/isijinternational.62.1560

Cited by 2 publications

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“…Table 2 presents the target strain obtained from our previous study. 17,18) The compression strength is also shown as reference.…”

Section: Methodsmentioning

confidence: 99%

“…The compositional characteristics have been reported in our previous work. 17,18) The strength indexes are presented in Table 1. The coke samples and property data were provided by Nippon Steel Corporation.…”

Section: Preparation Of Samplesmentioning

confidence: 99%

“…The analysis details are reported in our previous study. 17,18) After reaching a prescribed temperature under N 2 and additional 10 min, the compression strength of coke was measured. Here, the compression strength measured by the uniaxial compression test is not the same as the tensile strength measured by the diametral compression test.…”

Section: Uniaxial Compression Tests Under Inert Atmo-mentioning

confidence: 99%

“…Here, the compression strength measured by the uniaxial compression test is not the same as the tensile strength measured by the diametral compression test. In addition to reported measurement conditions, 17,18) the hot strength of Coke A under inert atmosphere at temperature of 500 and 800°C was measured at Japan Testing Laboratories, Inc. Two coke samples were used at each condition.…”

Section: Uniaxial Compression Tests Under Inert Atmo-mentioning

confidence: 99%

“…They concluded this was caused by its swelling, although the details were not clarified. Saito and Tsukamoto 17,18) recently reported that the coke strength measured at a high temperature (hot strength) was higher than that at ambient temperatures (cold strength), but the mechanisms have been unknown.…”

Section: Introductionmentioning

confidence: 99%

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Estimation of Material Constants of Hot Coke under Inert Atmosphere

et al. 2023

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The strength, pore structure, and material constants of coke prepared from caking coal (Coke A) and non-or slightly caking coal (Coke C) were experimentally and numerically investigated with a particular focus on those values at high temperatures. Coke A showed higher strength and lower porosity than Coke C. The pore structure imaged by X-ray computed tomography was translated to the finite element mesh with the image-based modeling, and the stress analysis based on the finite element method was performed to calculate the mode value of maximum principal stress at different Young's modulus and Poisson's ratio. Young's modulus of Coke A and Coke C at a constant Poisson's ratio decreased and increased, respectively by heating. When the temperature increased, the compression stress of Coke A increased. The result indicated that the coke strength could be increased by heating because of the decrease in apparent Young's modulus, accompanied by the occurrence of creep.

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“…Table 2 presents the target strain obtained from our previous study. 17,18) The compression strength is also shown as reference.…”

Section: Methodsmentioning

confidence: 99%

Section: Preparation Of Samplesmentioning

confidence: 99%

Section: Uniaxial Compression Tests Under Inert Atmo-mentioning

confidence: 99%

Section: Uniaxial Compression Tests Under Inert Atmo-mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Estimation of Material Constants of Hot Coke under Inert Atmosphere

et al. 2023

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Hot Strength of Coke Prepared by Briquetting and Carbonization of Lignite

et al. 2022

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The hot strength of coke prepared from an acid-washed lignite by briquettingcarbonization before and after CO 2 gasification was, for the first time, investigated in this work. The hot strength at 1000 ºC before gasification was higher than coke strength measured at a room temperature. CO 2 gasification resulted in a linear decrease of the hot strength with the reaction time. The lignite-coke showed faster decrease in the strength during gasification, compared to conventional cokes derived from caking coal or non-or slightly caking coal, due to the high reactivity caused by its porous structure and catalytic metal species remaining even after the acid-washing, while it showed superior hot strength at the initial stage of gasification.

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Correction of the parameters reported in the paper “Hot Coke Strength in CO<sub>2</sub> Reaction” [ISIJ International, Vol. 62 (2022), No. 3, pp. 606-608]

Cited by 2 publications

References 0 publications

Estimation of Material Constants of Hot Coke under Inert Atmosphere

Estimation of Material Constants of Hot Coke under Inert Atmosphere

Hot Strength of Coke Prepared by Briquetting and Carbonization of Lignite

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