钾、钠盐对棒状生物质稳态阴燃传播速度的影响分析

李舒琪; 于光鑫; 刘雪华; 陈鑫; 张毅; 何芳

doi:10.19912/j.0254-0096.tynxb.2024-1351

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太阳能学报 ›› 2025, Vol. 46 ›› Issue (12) : 781-787. DOI: 10.19912/j.0254-0096.tynxb.2024-1351

钾、钠盐对棒状生物质稳态阴燃传播速度的影响分析

李舒琪, 于光鑫, 刘雪华, 陈鑫, 张毅, 何芳

作者信息 +

EFFECT OF POTASSIUM AND SODIUM SALTS ON STEADY SMOLDERING PROPAGATION VELOCITY OF ROD-SHAPED BIOMASS

Li Shuqi, Yu Guangxin, Liu Xuehua, Chen Xin, Zhang Yi, He Fang

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摘要

为研究钾、钠对生物质阴燃传播速度的影响,在松榆混合粉中添加不同比例（0~1.65%）的KCl、NaCl制成生物质棒、炭棒,对其阴燃传播速度进行对比分析。结果表明：KCl、NaCl均可提高生物质棒和炭棒的阴燃速度,生物质棒阴燃速度随KCl比例的增加而增大,最大为原生物质棒的1.5倍;NaCl影响更显著,在0.33%~1.65%范围内均为原速度的1.8倍;对于炭棒,KCl、NaCl对阴燃速度的提高均为先增后减,最大阴燃速度分别在0.99%、0.33%处获得。这些影响结果与氧转移理论一致,并符合Langmuir-Hinshelwood机理;NaCl比KCl影响更明显的原因是Na的相对原子质量更小且性质更活泼。

Abstract

To investigate the effects of potassium and sodium on the propagation velocity of biomass smoldering, biomass rods and char rods were made by adding different proportions （0-1.65%） of KCl and NaCl to a mixture of pine-elm powder, smoldering propagation velocity was compared and analyzed. The results show that both KCl and NaCl enhance the smoldering propagation velocity of biomass and char rods. The smoldering velocity of biomass rod increases with the proportion of KCl, reaching a maximum of 1.5 times that of the original biomass rod. The effect of NaCl is more significant, which is 1.8 times of the original velocity at 0.33%-1.65%. For char rods,the enhancement of smoldering velocity by KCl and NaCl both firstly increases and then decreases, and the maximum smoldering velocity is obtained at 0.99% and 0.33% proportions of KCl and NaCl, respectively. The effect results are consistent with the oxygen transfer theory and the Langmuir-Hinshelwood mechanism. The more significant influence of NaCl compared to KCl is attributed to sodium’s smaller relative atomic mass and more reactive properties.

导出引用

李舒琪, 于光鑫, 刘雪华, 陈鑫, 张毅, 何芳. 钾、钠盐对棒状生物质稳态阴燃传播速度的影响分析[J]. 太阳能学报. 2025, 46(12): 781-787 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1351

Li Shuqi, Yu Guangxin, Liu Xuehua, Chen Xin, Zhang Yi, He Fang. EFFECT OF POTASSIUM AND SODIUM SALTS ON STEADY SMOLDERING PROPAGATION VELOCITY OF ROD-SHAPED BIOMASS[J]. Acta Energiae Solaris Sinica. 2025, 46(12): 781-787 https://doi.org/10.19912/j.0254-0096.tynxb.2024-1351

中图分类号： TK6

参考文献

[1] FU J Y, ZHANG S D, JI L J, et al.State of the art in self-sustaining smoldering for remediation of contaminated soil and disposal of organic waste[J]. Journal of hazardous materials, 2024, 474: 134667.
[2] 唐汝宁, 张嘉雪, 高龙, 等. 内蒙古牧区住宅地下燃池供暖系统研究[J]. 建筑科学, 2022, 38(4): 128-134.
Tang R N, ZHANG J X, GAO L, et al.Study on heating system of underground combustion pool in pasturing area of inner Mongolia[J]. Building science, 2022, 38(4): 128-134.
[3] 闫升太, 李舒琪, 徐攀, 等. 热分析仪中生物质炭氧化特性及面反应动力学分析[J]. 太阳能学报, 2023, 44(11): 406-412.
YAN S T, LI S Q, XU P, et al.Oxidation characteristics and kinetics of biochar in thermal analyzer based on surface reaction[J]. Acta energiae solaris sinica, 2023, 44(11): 406-412.
[4] HUANG X Y, GAO J.A review of near-limit opposed fire spread[J]. Fire safety journal, 2021, 120: 103141.
[5] 赵文涛. 生物质稳态阴燃及准稳态阴燃特性研究[D]. 淄博: 山东理工大学, 2024.
ZHAO W T.Characteristics of steady smoldering and quasi-steady smoldering for biomass[D]. Zibo: Shandong University of Technology, 2024.
[6] SMUCKER B D, JAYASURIYA W J, NIEMEYER K E, et al.Influence of lignin on smoldering propagation[J]. Combustion and flame, 2024, 265: 113451.
[7] 李秀华, 苏现强, 李湘杰, 等. 秸秆燃烧过程中KCl分压蒸发模型的建立与应用[J]. 太阳能学报, 2022, 43(4): 474-479.
LI X H, SU X Q, LI X J, et al.Establishment and application of evaporation model of partial pressure of potassium chlorine in straw combustion[J]. Acta energiae solaris sinica, 2022, 43(4): 474-479.
[8] 苏现强, 何芳, 李秀华, 等. 秸秆燃烧中钾逸出的几种模型的对比[J]. 太阳能学报, 2022, 43(5): 391-398.
SU X Q, HE F, LI X H, et al.Comparison of models for release of potassium during agro-stalks combustion[J]. Acta energiae solaris sinica, 2022, 43(5): 391-398.
[9] NOWAKOWSKI D J, JONES J M, BRYDSON R M D, et al. Potassium catalysis in the pyrolysis behaviour of short rotation willow coppice[J]. Fuel, 2007, 86(15): 2389-2402.
[10] WANG Z Y, WANG F, CAO J Q, et al.Pyrolysis of pine wood in a slowly heating fixed-bed reactor: potassium carbonate versus calcium hydroxide as a catalyst[J]. Fuel processing technology, 2010, 91(8): 942-950.
[11] SUN H L, FENG D D, SUN S Z, et al.Effect of acid washing and K/Ca loading on corn straw with the characteristics of gas-solid products during its pyrolysis[J]. Biomass and bioenergy, 2022, 165: 106569.
[12] ZHANG Y Y, LIU C.A new horizon on effects of alkalis metal ions during biomass pyrolysis based on density function theory study[J]. Journal of analytical and applied pyrolysis, 2014, 110: 297-304.
[13] 李舒琪, 闫升太, 赵文涛, 等. 钾盐对生物质炭氧化速率和反应热的影响[J]. 化学工程, 2023, 51(11): 20-24, 72.
LI S Q, YAN S T, ZHAO W T, et al.Effect of potassium salts on oxidation rate and reaction heat of biochar[J]. Chemical engineering(China), 2023, 51(11): 20-24, 72.
[14] CAI J J, WANG S Z, KUANG C, et al.Insight into the kinetic analysis of catalytic combustion for biomass after alkaline metals loaded pretreatment[J]. Fuel, 2017, 203: 501-513.
[15] DENG S H, WANG X B, ZHANG J Y, et al.A kinetic study on the catalysis of KCl, K₂SO₄, and K₂CO₃ during oxy-biomass combustion[J]. Journal of environmental management, 2018, 218: 50-58.
[16] 何芳, 李永军, 窦沙沙, 等. 室内生物质阴燃取暖炉的设计和实验[J]. 农业机械学报, 2006, 37(1): 75-78.
HE F, LI Y J, DOU S S, et al.Design and experiments on residential heating furnace with biomass smoldering[J]. Transactions of the Chinese Society for Agricultural Machinery, 2006, 37(1): 75-78.
[17] 何天澄, 朱学良, 范浩然, 等. 城市固废自维持阴燃处理的调控因素实验研究[J]. 工程热物理学报, 2020, 41(9): 2333-2344.
HE T C, ZHU X L, FAN H R, et al.Self-sustaining smoldering treatment of municipal solid wastes: controlling parameters[J].Journal of engineering thermophysics, 2020, 41(9): 2333-2344.
[18] YAMAZAKI T, MATSUOKA T, KUWANA K, et al.Study on the flaming-transition behavior of a downwardly smoldering biomass stick utilizing low pressure[J]. Proceedings of the combustion institute, 2021, 38(3): 5073-5080.
[19] LIN S R, CHOW T H, HUANG X Y.Smoldering propagation and blow-off on consolidated fuel under external airflow[J]. Combustion and flame, 2021, 234: 111685.
[20] KADOWAKI O, SUZUKI M, KUWANA K, et al.Limit conditions of smoldering spread in counterflow configuration: extinction and smoldering-to-flaming transition[J]. Proceedings of the combustion institute, 2021, 38(3): 5005-5013.
[21] YAN S T, HE F, CAI J M, et al.Characteristics of char cone covered by ash in steady smoldering of a char rod[J]. Combustion science and technology, 2024, 196(14): 2697-2706.
[22] 赵文涛, 张毅, 于光鑫, 等. 炭棒与生物质棒稳态阴燃特性对比[J]. 农业工程学报, 2023, 39(8): 215-221.
ZHAO W T, ZHANG Y, YU G X, et al.Comparison on the steady smoldering characteristics of char and biomass rods[J]. Transactions of the Chinese Society of Agricultural Engineering, 2023, 39(8): 215-221.
[23] QUYN D M, WU H W, HAYASHI J I, et al.Volatilisation and catalytic effects of alkali and alkaline earth metallic species during the pyrolysis and gasification of Victorian brown coal. Part IV. catalytic effects of NaCl and ion-exchangeable Na in coal on char reactivity[J]. Fuel, 2003, 82(5): 587-593.
[24] 方刚, 郎林, 杨辛苗, 等. 中药渣固废的碳酸钾催化热解特性与产物分布规律[J]. 太阳能学报, 2022, 43(7): 430-438.
FANG G, LANG L, YANG X M, et al.Pyrolysis characteristics and product distribution of herb residues catalyzed by potassium carbonate[J]. Acta energiae solaris sinica, 2022, 43(7): 430-438.
[25] ZHAO N, LI B X.The effect of sodium chloride on the pyrolysis of rice husk[J]. Applied energy, 2016, 178: 346-352.
[26] CHEN M Q, WANG J, ZHANG M X, et al.Catalytic effects of eight inorganic additives on pyrolysis of pine wood sawdust by microwave heating[J]. Journal of analytical and applied pyrolysis, 2008, 82(1): 145-150.
[27] WANG X B, LI S S, ADEOSUN A, et al.Effect of potassium-doping and oxygen concentration on soot oxidation in O₂/CO₂ atmosphere: a kinetics study by thermogravimetric analysis[J]. Energy conversion and management, 2017, 149: 686-697.
[28] SHEN B X, QINLEI. Study on MSW catalytic combustion by TGA[J]. Energy conversion and management, 2006, 47(11-12): 1429-1437.
[29] SADDAWI A, JONES J M, WILLIAMS A.Influence of alkali metals on the kinetics of the thermal decomposition of biomass[J]. Fuel processing technology, 2012, 104: 189-197.
[30] 高满达. 准东煤燃烧中钠行为及富磷添加剂对燃烧与灰熔融特性影响[D]. 北京: 华北电力大学, 2019.
GAO M D.Sodium behavior in Zhundong coal combustion and the effect of phosphorus-rich additives on combustion and ash fusion characteristics[D]. Beijing: North China Electric Power University, 2019.