Preparation and Properties of Composite Acid Gas Adsorbents

Abstract

Abstract: The study aimed at the efficient disposal of acidic harmful gases generated in the production of laboratories and analysis rooms in mining, geology, metallurgy and other industries. Natural clay minerals, alkali metal minerals and inorganic additives were took as raw materials, a series of composite acid gas adsorbents were prepared through formula design and extrusion molding, and their adsorption performances were studied by acid solution immersion experiment and fixed bed dynamic adsorption experiment. The results show that the soaking adsorption amounts of composite acid gas adsorbent on HCl and HNO₃ are 0.50~0.80 g/g and 0.55~0.95 g/g, and the adsorption amounts of Cl^- and NO^-₃ on volatile HCl and HNO₃ absorbed for 4 h are more than 35 and 40 mg/g, respectively, which are much higher than that of activated carbon and the same type of products on the market. The composite acid gas adsorbent has uniform microporosity, and its microstructure and chemical composition are more conducive to the diffusion, capture and reaction of volatile acid gas. The adsorption process on Cl^- and NO^-₃ is in accordance with the pseudo-second order kinetic model, which indicates it is mainly through chemical adsorption and absorption, and physical adsorption to remove volatile HCl, HNO₃ acid gas. The composite acid gas adsorbent has certain promotional value.

Key words: volatile acid gas, composite adsorbent, clay mineral, alkali metal mineral, HCl, HNO₃

CLC Number:

TQ424.24

QIU Xiumei, LIU Yedongyang, CAI Hao, GONG Guan, LIANG Yaqi. Preparation and Properties of Composite Acid Gas Adsorbents[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2024, 43(12): 4512-4520.

References

[1] 赵学道. 化学实验室废气处理方法研究[J]. 当代化工研究, 2020(12): 114-115.
ZHAO X D. Study on waste gas treatment methods in chemical laboratory[J]. Modern Chemical Research, 2020(12): 114-115 (in Chinese).
[2] 梁雅琪, 蔡浩, 龚关, 等. 非金属矿复合吸附剂对实验室废酸气吸附应用研究[J]. 资源环境与工程, 2021, 35(1): 113-115.
LIANG Y Q, CAI H, GONG G, et al. Research on the application of adsorption performance of non-metallic mineral composite adsorbent for the laboratory waste acid gas[J]. Resources Environment & Engineering, 2021, 35(1): 113-115 (in Chinese).
[3] 龚关, 肖宇鹰, 李莹, 等. 利用非金属矿研制酸气吸附剂的试验研究[J]. 中国非金属矿工业导刊, 2012(4): 18-19+44.
GONG G, XIAO Y Y, LI Y, et al. Study on manufacture acid gas adsorbent by non-metallic mine[J]. China Non-metallic Minerals Industry, 2012(4): 18-19+44 (in Chinese).
[4] 张仲仪. 复合吸附剂治理酸性废气[J]. 电镀与精饰, 2008, 30(11): 41-42.
ZHANG Z Y. Treatment of acidic exhausted gas with multiplex adsorbents[J]. Plating and Finishing, 2008, 30(11): 41-42 (in Chinese).
[5] BAI Y H, CHEN H H, CHENG H, et al. Coupling physical adsorption and photocatalysis over CdS/UiO-66-NH2 for efficient removal of hydrogen sulfide[J]. Separation and Purification Technology, 2024, 341: 126956.
[6] XIE W, ZHU T, YUAN B, et al. Plasma-catalyzed combined dynamic wave scrubbing: a novel method for highly efficient removal of multiple pollutants from flue gas at low temperatures[J]. Journal of Hazardous Materials, 2024, 461: 132518.
[7] 张治权, 李彦樟, 陈建利, 等. 活性炭再生方法比较及废核级活性炭再生现状研究[J]. 科技视界, 2020(15): 177-178.
ZHANG Z Q, LI Y Z, CHEN J L, et al. Comparison of regeneration methods of activated carbon and research on regeneration status of waste nuclear-grade activated carbon[J]. Science & Technology Vision, 2020(15): 177-178 (in Chinese).
[8] SUN Y, YANG G, ZHANG L, et al. Preparation of high performance H₂S removal biochar by direct fluidized bed carbonization using potato peel waste[J]. Process Safety and Environmental Protection, 2017, 107: 281-288.
[9] SHAO J G, ZHANG J J, ZHANG X, et al. Enhance SO₂ adsorption performance of biochar modified by CO₂ activation and amine impregnation[J]. Fuel, 2018, 224: 138-146.
[10] 冀宏. 去除氮氧化物复合吸附剂的研究[D]. 北京: 北京工业大学, 2007: 6.
JI H. Study on compound adsorbent for removing nitrogen oxides[D]. Beijing: Beijing University of Technology, 2007: 6 (in Chinese).
[11] KAMEDA T, TAKAHASHI Y, KUMAGAI S, et al. Comparison of Mg-Al layered double hydroxides intercalated with OH^- and CO^2-₃ for the removal of HCl, SO₂, and NO₂[J]. Journal of Porous Materials, 2022, 29(3): 723-728.
[12] KAMEDA T, TAKAHASHI Y, KUMAGAI S, et al. Exhaust gas treatment using MnO₂/Mg-Al layered double hydroxide: assessment of its mixed gas removal performance and regeneration[J]. Chemical Engineering Research and Design, 2022, 178: 602-608.
[13] 马晓凤, 林渐玲. 纳米磷酸铁锂生产的氮氧化物处理工艺研究及工程实例[J]. 广东化工, 2016, 43(5): 134-135.
MA X F, LIN J L. The study and projects on removal of nitrogen oxides in exhaust gas from nano-lithium iron phosphate’s production[J]. Guangdong Chemical Industry, 2016, 43(5): 134-135 (in Chinese).
[14] 王小云, 李坚, 王艳磊, 等. 一种新型酸雾吸附剂的试验研究[J]. 安全与环境学报, 2008, 8(3): 37-39.
WANG X Y, LI J, WANG Y L, et al. Study on the adsorbent for the removal of acid mist[J]. Journal of Safety and Environment, 2008, 8(3): 37-39 (in Chinese).
[15] 舒月红, 方瑜, 潘碧峰, 等. 改性粉煤灰处理铅酸蓄电池厂硫酸雾实验研究[J]. 电源技术, 2013, 37(1): 89-92.
SHU Y H, FANG Y, PAN B F, et al. Study on modified fly-ash for removal of sulfuric acid mist from lead-acid battery industry[J]. Chinese Journal of Power Sources, 2013, 37(1): 89-92 (in Chinese).
[16] 王小云, 李坚, 王艳磊, 等. 改性粉煤灰在酸雾治理方面的研究[J]. 环境工程学报, 2008, 2(5): 675-678.
WANG X Y, LI J, WANG Y L, et al. Study on modified fly ash for the removal of acid mist waste gas[J]. Chinese Journal of Environmental Engineering, 2008, 2(5): 675-678 (in Chinese).
[17] 吕玲玲, 李坚. 新型酸雾吸附剂的实验研究[C]//2014中国环境科学学会学术年会(第六章), 2014: 23-28.
LV L L, LI J. Study on the new adsorbent for the removal of acid mist[C]//2014 Annual Conference of Chinese Society for Environmental Sciences (Chapter VI), 2014: 23-28 (in Chinese).
[18] DING C, SUN T, SHUI Z H, et al. Physical properties, strength, and impurities stability of phosphogypsum-based cold-bonded aggregates[J]. Construction and Building Materials, 2022, 331: 127307.
[19] WANG C, YU J L, FENG K, et al. Alkali treatment to transform natural clinoptilolite into zeolite Na-P: influence of NaOH concentration[J]. Journal of Physics and Chemistry of Solids, 2022, 168: 110827.
[20] HAMEED B H, AHMAD A A, AZIZ N. Isotherms, kinetics and thermodynamics of acid dye adsorption on activated palm ash[J]. Chemical Engineering Journal, 2007, 133(1/2/3): 195-203.
[21] YU F, LI Y, HUANG G Q, et al. Adsorption behavior of the antibiotic levofloxacin on microplastics in the presence of different heavy metals in an aqueous solution[J]. Chemosphere, 2020, 260: 127650.