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您的检索式：作者名="Pritesh Garg"
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| 1 | Kinetic analysis of iron ore powder reaction with hydrogen-carbon monoxide显示文摘Iron ore powder was isothermally reduced at 1023-1373 Kwith hydrogen/carbon monoxide gas mixture(from 0vol%H_(2)/100vol%CO to 100vol%H_(2)/0vol%CO).Results indicated that the whole reduction process could be divided into two parts that proceed in series.The first part represents a double-step reduction(Fe_(2)O_(3)→Fe_(3)O_(4)→FeO),in which the kinetic condition is more feasible compared with that in the second part representing a single-step reduction(FeO→Fe).The influence of hydrogen partial pressure on the reduction rate gradually increases as the reaction proceeds.The average reduction rate of hematite ore with pure hydrogen is about three and four times higher than that with pure carbon monoxide at 1173 and 1373 K,respectively.In addition,the logarithm of the average rate is linear to the composition of the gas mixture.Hydrogen can prominently promote carbon deposition to about 30%at 1023 K.The apparent activation energy of the reduction stage increases from about 35.0 to 45.4 kJ/mol with the increase in hydrogen content from 20vol%to 100vol%.This finding reveals that the possible rate-controlling step at this stage is the combined gas diffusion and interfacial chemical reaction. | Xudong Mao Pritesh Garg Xiaojun Hu Yuan Li Samik Nag Saurabh Kundu Jianliang Zhang | 2022 | International Journal of Minerals,Metallurgy and Materials2022，29，10： | 2 |
| 2 | 热重-质谱联用研究铁矿粉氢还原的动力学研究显示文摘采用热重-质谱联用技术,研究了1023~1373 K条件下H2还原铁矿粉的反应动力学。结果表明,铁氧化物的还原存在分段现象,两个阶段均符合界面化学控速的反应机制,表观反应活化能分别为37.40 kJ/mol和34.97 kJ/mol。由质谱分析数据可以计算得到反应的还原度和还原速率,与热重分析相比,结果基本一致,但存在细节丢失及迟后现象。 | 李远 胡晓军 Pritesh Garg 毛旭东 李克江 张建良 | 2020 | 江西冶金2020，40，2： | 0 |
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