华中科技大学 能源与动力工程学院,湖北 武汉 430074
陈玉龙(2000—),男,硕士生,从事燃气超清洁高效燃烧理论与技术的研究,E-mail: 2568102910@qq.com.
万建龙(1988—),男,博士,副教授,主要从事先进燃烧理论与技术的研究,E-mail: jlw@hust.edu.cn.
收稿:2025-05-06,
修回:2025-12-29,
录用:2025-12-31,
纸质出版:2026-03-25
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陈玉龙,万建龙. 面向氢冶金和水泥煅烧的H2-O2富燃预混燃烧特性[J]. 新疆大学学报(自然科学版中英文),2026,43(2):250-256.
Chen Yulong,Wan Jianlong. Rich premixed combustion characteristic of H2-O2 for hydrogen metallurgy and cement calcination[J]. Journal of Xinjiang University(Natural Science Edition in Chinese and English),2026,43(2):250-256.
陈玉龙,万建龙. 面向氢冶金和水泥煅烧的H2-O2富燃预混燃烧特性[J]. 新疆大学学报(自然科学版中英文),2026,43(2):250-256. DOI: 10.13568/j.cnki.651094.651316.2025.05.06.0001.
Chen Yulong,Wan Jianlong. Rich premixed combustion characteristic of H2-O2 for hydrogen metallurgy and cement calcination[J]. Journal of Xinjiang University(Natural Science Edition in Chinese and English),2026,43(2):250-256. DOI: 10.13568/j.cnki.651094.651316.2025.05.06.0001.
为实现冶金和水泥行业的减排增效,利用H
2
-O
2
富燃预混燃烧产生的高温还原气对金属矿石和碳酸钙进行低碳高效还原,H
2
-O
2
富燃预混燃烧是其中的核心技术之一,可为相关燃烧器的开发提供理论支持.本文通过数值模拟研究带钝体的燃烧器内H
2
-O
2
富燃预混燃烧特性.结果表明,H
2
-O
2
富燃预混火焰在不同雷诺数下的可燃范围较宽,雷诺数为300、400和500时,稳定运行当量比范围分别为1.75、2.05和2.10.火焰在回火或吹熄之前保持稳定对称形态,且呈现C形.流场的逆向流动将H
2
带到了紧贴钝体的回流区附近,随后与高温燃烧产物混合流出燃烧器.而O
2
在火焰锋面上游边界附近被完全消耗.随着雷诺数增大,烟气中H
2
含量略有下降;而当量比增大时,H
2
含量接近线性增大.通过调节流量和当量比,可在较大范围内精确调控还原气体中的H
2
百分比.本文结果为利用绿氢在高效还原石灰石或金属矿物的同时实现超低CO
2
排放提供了新方案.
To achieve low-emission and high-efficiency in the metallurgy and cement industries
the high-temperature reducing gases generated by hydrogen-oxygen rich premixed combustion can be used for low-carbon and efficient reduction of metallic ores and calcium carbonate. Hydrogen-oxygen rich premixed combustion technology is one of the core methods for this process and provides theoretical support for the development of related burners. In this study
the combustion characteristics of hydrogen-oxygen rich premixed combustion in a combustor with a bluff-body are numerically simulated. The results show that the flammability limits of the hydrogen-oxygen mixture are wide at different Reynolds numbers
and stable operating equivalence ratios range from 1.75
2.05 and 2.10 at Reynolds numbers of 300
400 and 500
respectively. The flame remains symmetrically sta
ble before flashback or blow-off occurs
and is C-shaped. The reverse flow of the flow field carries the hydrogen gas to the vicinity of the recirculation zone immediately adjacent to the bluff-body
where it subsequently mixes with the high temperature combustion products and flows out of the burner. However
oxygen is completely consumed near the upstream boundary of the flame front. Further analysis indicates that as the Reynolds number increases
the hydrogen content in the exhaust gas decreases slightly
while the hydrogen content increases almost linearly with the equivalence ratio. By adjusting the flow rate and equivalence ratio
the hydrogen percentage in the reductive gas can be precisely controlled over a wide range. This study offers a new approach to achieving ultra-low CO
2
emissions while efficiently reducing limestone or metallic minerals using green hydrogen.
Kohse-Höinghaus K . Clean combustion:Chemistry and diagnostics for a systems approach in transportation and energy conversion [J]. Progress in Energy and Combustion Science , 2018 , 65 : 1 - 5 .
Sánchez A L , Williams F A . Recent advances in understanding of flammability characteristics of hydrogen [J]. Progress in Energy and Combustion Science , 2014 , 24 : 1 - 55 .
Shekari A , Labrecque R , Larocque G , et al . Conversion of CO 2 by reverse water gas shift (RWGS) reaction using a hydrogen oxyflame [J]. Fuel , 2023 , 344 : 127947 .
Li B , Shi B L , Chu Q Z , et al . Characteristics of stoichiometric CH 4 /O 2 /CO 2 flame up to the pure oxygen condition [J]. Energy , 2019 , 168 : 151 - 159 .
Liu P , Zhang Y , Guo J J , et al . Characterization of CH 4 -CO 2 -O 2 diffusion flames near autothermal reforming condition [J]. Proceedings of the Combustion Institute , 2024 , 40 : 105215 .
万建龙 , 张静宜 , 刘浩 , 等 . 微型钝体燃烧器中氢气燃烧的实验与模拟 [J]. 工程热物理学报 , 2013 , 34 ( 11 ): 2198 - 2201 .
Wan J L , Zhang J Y , Liu H , et al . Experimental and numerical studies of hydrogen/air combustion in a micro-combustor with a bluff body [J]. Journal of Engineering Thermophysics , 2013 , 34 ( 11 ): 2198 - 2201 . (in Chinese)
逯彦红 , 段国林 . 窄间隙矩形通道内填充泡沬金属后的换热性能分析与应用 [J]. 新疆大学学报(自然科学版) , 2016 , 33 ( 4 ): 491 - 494 .
Lu Y H , Duan G L . Analysis and application of heat transfer characteristics for metal foam filled in narrow rectangular chan‑nel [J]. Journal of Xinjiang University(Natural Science Edition) , 2016 , 33 ( 4 ): 491 - 494 . (in Chinese)
熊晓俊 , 蔡思琪 , 万建龙 . 微小多孔介质燃烧器内富氢甲烷全预混燃烧与热性能特性 [J]. 新疆大学学报(自然科学版中英文) , 2025 , 42 ( 1 ): 107 - 113 .
Xiong X J , Cai S Q , Wan J L . Lean premixed combustion and thermal performance of hydrogen-enriched methane in a minature combustor with porous medium [J]. Journal of Xinjiang University(Natural Science Edition in Chinese and English) , 2025 , 42 ( 1 ): 107 - 113 . (in Chinese)
Cai S Q , Yang W Q , Li L , et al . Features of lean premixed flame stabilized on a bluff-body with different temperature magni‑tude [J]. Combustion and Flame , 2025 , 271 : 113840 .
Kedia K S , Ghoniem A F . The anchoring mechanism of a bluff-body stabilized laminar premixed flame [J]. Combustion and Flame , 2014 , 161 : 2327 - 2339 .
Katta V , Roquemore W M . C/H atom ratio in recirculation-zone-supported premixed and nonpremixed flames [J]. Proceedings of the Combustion Institute , 2013 , 34 : 1101 - 1108 .
Yang W Q , Wan J L . Resident mechanism of a holder-stabilized ultra-lean hydrogen enriched residual flame [J]. Combustion and Flame , 2024 , 270 : 113797 .
Cai S Q , Wan J L . Broadened mechanism of the flammability limit of lean premixed mixture via increasing bluff-body temperature [J]. Combustion and Flame , 2025 , 280 : 114388 .
Kedia K S , Ghoniem A F . The response of a harmonically forced premixed flame stabilized on a heat-conducting bluff-body [J]. Proceedings of the Combustion Institute , 2015 , 35 : 1065 - 1072 .
Cai S Q , Yang W Q , Wan J L . Insight into the ultra-lean residual flame stabilized on a high-temperature bluff-body [J]. Combustion and Flame , 2025 , 272 : 113905 .
The combustion laboratory at the university of California , Berkeley [EB/OL].[ 2025-02-13 ]. http://www.me.berkeley.edu/gri_mech/ http://www.me.berkeley.edu/gri_mech/ .
Konnov A A . Yet another kinetic mechanism for hydrogen combustion [J]. Combustion and Flame , 2019 , 203 : 14 - 22 .
Vance F H , Shoshin Y , Goey D P , et al . Flame stabilization and blow-off of ultra-lean H 2 -air premixed flames [J]. Energies , 2021 , 14 : 1977 .
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