氢冶金竖炉还原域的数值模拟分析

doi:10.13228/j.boyuan.issn0449-749x.20210664

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (2940 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract Iron and steel industry is important basic industry for China's national economic development. Under the background of "carbon peak and carbon neutralization", low-carbon production has become a new competitiveness of iron and steel industry. The increasing environmental awareness calls for the development of innovative technologies. Hydrogen metallurgy is recognized as the cleanest and the most environment friendly metallurgical technology in the world, and clean and renewable energy are used in the iron-making process. The use of H₂ can reduce the greenhouse gas emissions caused by the iron-making process and reduce the emissions brought by carbon reductants from the source. Numerical simulation of hydrogen metallurgy shaft furnace is an important method to study the internal characteristics of iron and steel metallurgical process, which can provide an effective strategy for smooth operation. The purpose is to set reasonable furnace type parameters and reduction conditions of hydrogen direct reduction reactor. According to the rule of countercurrent reduction shaft furnace and the principle of safe, reliable, stable running, high efficiency and energy saving, this paper gave full play to the advantages of H₂ reduction, using existing shaft furnace design and production experience, carried out numerical simulation analysis on the reduction domain of hydrogen metallurgy shaft furnace with the help of Ansys, and which focused on the technological advantages of pure hydrogen in high temperature reduction conditions. The results show that the contants of gaseous reactants decreases while the contants of gaseous products increases when the reduction reaction goes along the hydrogen reduction shaft furnace. At the same time, the reduction reaction is mainly concentrated in the middle and lower part of the reduction domain, that is, 0.5-2.0 m height. Reasonable setting of reduction conditions and parameters of reduction domain can significantly improve the reduction degree of the whole process, slow down the consumption of raw materials, and achieve optimal efficiency, so as to provide reasonable suggestions for the long-term transition to all-hydrogen shaft furnace combined with the trend of low-cost renewable energy, support hydrogen metallurgy industrialize application as soon as possible, and provide theoretical support for hydrogen metallurgy industrial design.

Key words： hydrogen hydrogen metallurgy shaft furnace reduction domain numerical simulation

Received: 03 November 2021

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	CHAI Xi-cui
	YUE Qiang
	ZHANG Yu-jie
	WANG Qi

Cite this article:

CHAI Xi-cui,YUE Qiang,ZHANG Yu-jie等. Numerical simulation analysis of reduction domain in hydrogen metallurgy shaft furnace[J]. Iron and Steel, 2022, 57(4): 138-147.

URL:

http://www.chinamet.cn/Jweb_gt/EN/10.13228/j.boyuan.issn0449-749x.20210664 OR http://www.chinamet.cn/Jweb_gt/EN/Y2022/V57/I4/138

[1] 倪斌. 国家“双碳”战略的思考与实践[J]. 上海节能, 2021 (9): 930. (NI Bin. Thoughts and practices of national strategy of carbon peak carbon neutrality[J]. Shanghai Energy Conservation, 2021 (9): 930.)
[2] 刘玮, 万燕鸣, 熊亚林, 等.“双碳”目标下我国低碳清洁氢能进展与展望[J/OL]. 储能科学与技术, DOI: 10.19799/j.cnki.2095-4239.2021.0385.(LIU Wei, WAN Yan-ming, XIONG Ya-lin, et al. Outlook of low-carbon and clean hydrogen in China under the goal of "carbon peak and neutrality"[J/OL]. Energy Storage Science and Technology, DOI: 10.19799/j.cnki.2095-4239.2021.0385.)
[3] 胡鞍钢. 中国实现2030年前碳达峰目标及主要途径[J]. 北京工业大学学报(社会科学版), 2021, 21 (3): 1. (HU An-gang. China's goal of achieving carbon peak by 2030 and its main approaches[J]. Journal of Beijing University of Technology (Social Sciences Edition), 2021, 21 (3): 1.)
[4] 上官方钦, 刘正东, 殷瑞钰. 钢铁行业“碳达峰”“碳中和”实施路径研究[J]. 中国冶金, 2021, 31(9): 15. (SHANGGUAN Fang-qin, LIU Zheng-dong, YIN Rui-yu. Study on implementation path of "carbon peak" and "carbon neutrality" in steel industry in China[J]. China Metallurgy, 2021, 31(9): 15.)
[5] 苍大强. 钢铁工业“碳达峰”“碳中和”及低碳技术的误区及现实路径[J]. 中国冶金, 2021, 31(9): 3. (CANG Da-qiang. Misunderstandings and realistic path of "carbon peak" "carbon neutrality" and low carbon technologies in iron and steel industry[J]. China Metallurgy, 2021, 31(9): 3.)
[6] 张龙强, 陈剑. 钢铁工业实现“碳达峰”探讨及减碳建议[J]. 中国冶金, 2021, 31(9): 21. (ZHANG Long-qiang, CHEN Jian. Discussion on achieving "carbon peak" and suggestions for reducing carbon in iron and steel industry[J]. China Metallurgy, 2021, 31(9): 21.)
[7] 徐匡迪. 低碳经济与钢铁工业[J]. 钢铁, 2010, 45 (3): 1. (XU Kuang-di. Low carbon economy and iron and steel industry[J]. Iron and Steel, 2010, 45 (3): 1.)
[8] 上官方钦, 张春霞, 胡长庆, 等. 中国钢铁工业的CO₂排放估算[J]. 中国冶金, 2010, 20 (5): 37. (SHANGGUAN Fang-qin, ZHANG Chun-xia, HU Chang-qing, et al. Estimation of CO₂ emission in Chinese steel industry[J]. China Metallurgy, 2010, 20 (5): 37.)
[9] Ariyama T, Takahashi K, Kawashiri Y, et al. Diversification of the ironmaking process toward the long-term global goal for carbon dioxide mitigation[J]. Journal of Sustainable Metallurgy, 2019 (5): 276.
[10] 张琦, 沈佳林, 许立松. 中国钢铁工业碳达峰及低碳转型路径[J]. 钢铁, 2021, 56 (10): 152. (ZAHNG Qi, SHEN Jia-lin, XU Li-song. Carbon peak and low-carbon transition path of China's iron and steel industry[J]. Iron and Steel, 2021, 56 (10): 152.)
[11] 熊超, 李新创, 李冰. 双碳目标下的钢铁节能理念创新与能源结构重塑探讨[J]. 中国冶金, 2021, 31(9): 59.(XIONG Chao, LI Xin-chuang, LI Bing. Discussion on steel energy-saving concept innovation and energy structure reconstruction under "double carbon" target[J]. China Metallurgy, 2021, 31(9): 59.)
[12] 肖鹏. 高炉炼铁技术创新实践及未来展望[J]. 钢铁, 2021, 56(6): 10. (XIAO Peng. Innovation practice and future prospects of blast furnace ironmaking technology[J]. Iron and Steel, 2021, 56(6): 10.)
[13] 张利娜, 李新创, 李冰, 等.基于钢铁企业的技术碳减排成本计算方法研究及应用[J].冶金能源,2020,39(4):3. (ZHANG Li-na, LI Xin-chuang, LI Bing, et al. Research and application on calculation method of technical carbon emission reduction cost of iron and steel enterprises[J]. Energy for Metallurrgical Industry, 2020,39(4):3.)
[14] TANG J, CHU M S, LI F, et al. Development and progress on hydrogen metallurgy[J]. International Journal of Minerals, Metallurgy and Materials, 2020, 27 (3): 713.
[15] Karakaya E, Nuur C, Assbring L. Potential transitions in the iron and steel industry in Sweden: Towards a hydrogen-based future?[J]. Journal of Cleaner Production, 2018, 195: 651.
[16] 潘聪超, 庞建明. 氢冶金技术的发展溯源与应用前景[J]. 中国冶金, 2021, 31(9): 73. (PAN Cong-chao, PANG Jian-ming. Development trace and application prospect of hydrogen metallurgy technology[J]. China Metallurgy, 2021, 31(9): 73.)
[17] Parisi D R, Laborde M A. Modeling of counter current moving bed gas-solid reactor used in direct reduction of iron ore[J]. Chemical Engineering Journal, 2004 (104): 35.
[18] 邵磊, 张晓楠, 聂浩, 等. 氢气竖炉内气固热质传递行为的数值模拟[J]. 中国冶金, 2021, 31 (9): 110. (SHAO Lei, ZHANG Xiao-nan, NIE Hao, et al. Numerical simulation of gas-soild heat and mass transfer behavior in H₂ shaft furnace[J]. China Metallurgy, 2021, 31 (9): 110.)
[19] 白明华, 李路叶, 徐宽, 等. 直接还原竖炉氢气利用率的数值分析及优化[J]. 燕山大学学报, 2016, 40 (6): 481. (BAI Ming-hua, LI Lu-ye, XU Kuan, et al. Numerical analysis and optimization on hydrogen utilization in DR shaft furnace[J]. Journal of Yanshan University, 2016, 40 (6): 481.)
[20] 徐辉, 邹宗树, 余艾冰. Midrex还原竖炉反应的数值模拟[J]. 钢铁, 2008, 43 (5): 12. (XU Hui, ZOU Zong-shu, YU Ai-bing. A preliminary numerical simulation of Midrex reduction shaft furnace[J]. Iron and Steel, 2008, 43 (5):12.)
[21] Ghadi A Z, Valipour M S, Biglari M. CFD simulation of two-phase gas-particle flow in the Midrex shaft furnace: The effect of twin gas injection system on the performance of the reactor[J]. International Journal of Hydrogen Energy, 2016, 42 (1): 103.
[22] Nouri S M M, Ebrahim H A, Jamshidi E. Simulation of direct reduction reactor by the grain model[J]. Chemical Engineering Journal, 2011, 166 (2): 704.
[23] ZHANG X S, LUO Z G, ZOU Z S. Numerical analysis on performance of COREX CGD shaft furnace with top gas recycling[J]. ISIJ International, 2019, 59 (11): 1972.
[24] BAI M H, HAN S F, ZHANG W Y, et al. Influence of bed conditions on gas flow in the COREX shaft furnace by DEM-CFD modelling[J]. Ironmaking and Steelmaking, 2017, 44 (9): 685.
[25] 韩少峰. 氢气直接还原竖炉温度场和流场的模拟[D]. 秦皇岛: 燕山大学, 2016. (HAN Shao-feng. Simulation of temperature and gas flow field in hydrogen direct reduction shaft furnace[D]. Qinhuangdao: Yanshan University, 2016.)
[26] MA K H, DENG J Y, WANG G, et al. Utilization and impacts of hydrogen in the ironmaking processes: A review from lab-scale basics to industrial practices[J]. International Journal of Hydrogen Energy, 2021, 46 (52): 26646.
[27] HOU B L, ZHANG H Y, LI H Z, et al. Study on kinetics of iron oxide reduction by hydrogen[J]. Chinese Journal of Chemical Engineering, 2012, 20 (1): 10.
[28] CHEN Z Y, DANG J, HU X J, et al. Reduction kinetics of hematite powder in hydrogen atmosphere at moderate temperatures[J]. Metals, 2018, 8 (10): 1.
[29] Ghadi A Z, Valipour M S, Vahedi S M, et al. A review on the modeling of gaseous reduction of iron oxide pellets[J]. Steel Research International, 2020, 91 (1): 1.
[30] 张福林. 竖式逆流换热装置整体设计及数值分析[D]. 马鞍山: 安徽工业大学, 2020. (ZHANG Fu-lin. The overall design and numerical analysis of the vertical countercurrent heat exchanger[D]. Ma'anshan: Anhui University of Technology, 2020.)
[31] 李亨, 张锡文, 何枫. 论多孔介质中流体流动问题的数值模拟方法[J]. 石油大学学报(自然科学版), 2000 (5): 111. (LI Heng, ZHANG Xi-wen, HE Feng. Numerical simulation of fluid flow in porous media[J]. Journal of the University of Petroleum (Natural Science), 2000 (5): 111.)
[32] 赵升. 多孔介质材料多物理场耦合数值模拟分析[D]. 大连: 大连理工大学, 2021. (ZHAO Sheng. Numerical Simulation of Multi Physical Field Coupling in Porous Media[D]. Dalian: Dalian University of Technology, 2021.)
[33] 李路叶. 直接还原竖炉氢气利用率及炉内温度研究[D]. 秦皇岛: 燕山大学, 2016. (LI Lu-ye. Research on Hydrogen Utilization in DR Shaft Furnace and Temperature Field[D]. Qinhuangdao: Yanshan University, 2016.)
[34] Béchara R, Hamadeh H, Mirgaux O, Patisson F. Optimization of the iron ore direct reduction process through multiscale process modeling[J]. Materials, 2018, 11(7): 1094.
[35] Da Costa A R, Wagner D, Patisson F. Modelling a new, low CO₂ emissions, hydrogen steelmaking process[J]. Journal of Cleaner Production, 2013, 46: 27.
[36] 应伟峰. COREX预还原竖炉的数学物理模拟[D]. 沈阳: 东北大学, 2013. (YING Wei-feng. Mathematical and Physical Simulation of COREX Pre-reduction Shaft Furnace[D]. Shenyang: Northeastern University, 2013.)
[37] 张钰洁, 岳强, 柴锡翠, 等. 物性参数对氢冶金流程能耗及碳排放的影响[J/OL]. 材料与冶金学报, https://kns.cnki.net/kcms/detail/21.1473.TF.20211025.1156.004.html. (ZHANG Yu-jie, YUE Qiang, CHAI Xi-cui, et al. Influence of physical parameters on energy consumption and carbon emission of hydrogen metallurgy process[J/OL]. Journal of Materials and Metallurgy, https://kns.cnki.net/kcms/detail/21.1473.TF.20211025.1156.004.html.)
[38] LIU W G, ZUO H B, WANG J S, et al. The production and application of hydrogen in steel industry[J]. International Journal of Hydrogen Energy, 2021, 46 (17): 10548.
[39] XU J, WU S L, KOU M Y, et al. Numerical analysis of the characteristics inside pre-reduction shaft furnace and its operation parameters optimization by using a three-dimensional full scale mathematical model[J]. ISIJ International, 2013, 53 (4): 576.