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[1]刘阔,荆德吉,樊晶光,等.酸碱度调控对抑尘脱硫试剂增强H2S吸收作用机理*[J].中国安全生产科学技术,2025,21(12):20-30.[doi:10.11731/j.issn.1673-193x.2025.12.003]
　LIU Kuo,JING Deji,FAN Jingguang,et al.Synergistic regulation of acidity and alkalinity on the efficacy of composite solutions for dust and sulphur suppression and removal[J].Journal of Safety Science and Technology,2025,21(12):20-30.[doi:10.11731/j.issn.1673-193x.2025.12.003]
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酸碱度调控对抑尘脱硫试剂增强H2S吸收作用机理*

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
21
期数:
2025年12期
页码:
20-30
栏目:
学术论著
出版日期:
2025-12-30

文章信息/Info

Title:
Synergistic regulation of acidity and alkalinity on the efficacy of composite solutions for dust and sulphur suppression and removal
文章编号:
1673-193X(2025)-12-0020-11
作者:
刘阔; 荆德吉; 樊晶光; 张强; 孟祥曦; 鲍春花
（1.辽宁工程技术大学 安全科学与工程学院，辽宁 阜新 123000；
2.辽宁工程技术大学矿山热动力灾害与防治教育部重点实验室，辽宁 阜新 123000；
3.辽宁工程技术大学 鄂尔多斯研究院，内蒙古 鄂尔多斯 017000；
4.国家卫生健康委职业安全卫生研究中心，北京 102308；
5.国家卫生健康委粉尘危害工程防护重点实验室，北京 102308；
6.铁法煤业（集团）有限责任公司晓明矿，辽宁 铁岭 112700；
7.辽宁工程技术大学 软件学院，辽宁 葫芦岛 125000）
Author(s):
LIU Kuo;  JING Deji;  FAN Jingguang;  ZHANG Qiang;  MENG Xiangxi;  BAO Chunhua
关键词:
表面活性剂; pH值; 硫化氢; 吸附量; 润湿性
Keywords:
surfactants;  pH value;  hydrogen sulfide;  adsorption;  wettability
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2025.12.003
文献标志码:
A
摘要:
为优化煤矿工作面H2S与粉尘协同治理技术以提升脱硫效率，提出1种通过调控复合溶液酸碱度以提升H2S吸收性能的方法。优选润湿性最佳的表面活性剂十二烷基苯磺酸钠（SDBS）与碳酸钠复配，以煤样表面H2S体积分数为评价指标，系统比较不同溶液体系的吸收性能，重点分析pH调控对脱硫效果的影响，并结合吸附模拟从分子层面揭示强化机制。研究结果表明：单一Na2CO3溶液因碱性减弱及传质速率低，吸收能力较差；添加SDBS可增强润湿性、扩大气液接触面积，初始阶段H2S体积分数低于单一Na2CO3体系（7.1×10-3%），但后期抑制碳酸钠水解，H2S残余体积分数较高；通过添加NaOH将复合体系pH调节至与1% Na2CO3体系一致（11.56），控制碱性变量，可显著提升H2S初始吸收效率与反应彻底性，最终吸收量较未调pH复合体系相对提升40%。吸附模拟进一步表明，pH矫正后复合体系的等温吸附量（1 000 kPa）与等压吸附量分别提升21.7%与17.51%，验证其高效吸收性能。研究结果可为矿用抑尘脱硫剂的优化设计提供新思路。
Abstract:
In order to optimize the synergistic control technology for H2S and dust in coal mine working faces and improve desulfurization efficiency,this study proposes a method to enhance H2S absorption performance by regulating the pH of a composite solution.Sodium dodecylbenzene sulfonate,SDBS,with the best wettability is selected and compounded with sodium carbonate.Using the H2S volume fraction on the coal sample surface as the evaluation index,the absorption performance of different solution systems is systematically compared,with emphasis on the effect of pH regulation on desulfurization performance.Adsorption simulations are further conducted to reveal the enhancement mechanism at the molecular level.The results show that a single Na2CO3 solution exhibits poor absorption capacity due to weakened alkalinity and a low mass transfer rate.The addition of SDBS enhances wettability and enlarges the gas liquid contact area,leading to a lower H2S volume fraction than that of the single Na2CO3 system at the initial stage,7.1×10-3%,but it suppresses the hydrolysis of sodium carbonate in the later stage,resulting in a higher residual H2S volume fraction.By adding NaOH to adjust the pH of the composite system to match that of the 1% Na2CO3 system,11.56,the alkalinity variable is controlled,which significantly improves the initial H2S absorption efficiency and reaction completeness,and the final absorption capacity increases by 40% compared with the composite system without pH adjustment.Adsorption simulations further show that,after pH correction,the isothermal adsorption capacity at 1 000 kPa and the isobaric adsorption capacity increase by 21.7% and 17.51%,respectively,confirming the high efficiency absorption performance.These findings provide new insights for the optimal design of mine dust suppression desulfurization agents.

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备注/Memo

备注/Memo:
收稿日期： 2025-10-03
* 基金项目： 国家自然基金面上项目（52474229）；内蒙古自治区重点研发和成果转化计划项目（2025YFSH0073）
作者简介： 刘阔，硕士研究生，主要研究方向为职业安全健康。
通信作者： 张强，本科，高级工程师，主要研究方向为职业安全健康。
更新日期/Last Update: 2026-01-05