FeCl<sub>3</sub>改性活性炭脱硫性能研究

胡谦; 刘然; 赵俊; 吕庆

doi:10.3969/j.issn.1000-6532.2024.01.022

FeCl₃改性活性炭脱硫性能研究

1.
华北理工大学冶金与能源学院，教育部现代冶金技术重点实验室，河北　唐山　063009

基金项目: 国家自然科学基金项目（51674122）；河北省自然科学基金高端钢铁冶金联合基金项目（E2020209208）

详细信息

作者简介: 胡谦（1998-），女，硕士生，研究方向为钢铁冶金

通讯作者: 刘然(1979-)，男，博士，教授，研究方向为钢铁冶金

中图分类号: TD989

收稿日期: 2021-04-26

刊出日期: 2024-02-25

Study on Desulfurization Performance of FeCl₃ Modified Activated Carbon

1.
College of Metallurgy and Energy, Ministry of Education Key Laboratory of Modern Metallurgy Technology, North China University of Science and Technology, Tangshan 063009, Hebei, China

More Information

Corresponding author: LIU Ran, liuran@ncst.edu.cn

Received Date: 26 April 2021

Publish Date: 25 February 2024

摘要

摘要:
这是一篇环境工程领域的论文。实验采用浸渍法，以FeCl₃作为改性剂对活性炭进行改性，研究其脱硫能力。实验研究了改性剂浓度、焙烧温度、反应温度对改性活性炭脱硫性能的影响。研究表明，随着改性溶液浓度的增加，活性炭表面附着的Fe₂O₃随之增加，改性活性炭的比表面积和总孔容均降低，平均孔径增加；随着焙烧温度升高，活性炭表面附着的Fe₂O₃数量持续增加，焙烧温度超过300 ℃时，活性炭表面的孔隙结构出现烧结现象，降低改性活性炭的脱硫性能；随着反应温度升高，FeCl₃/AC-0.15的吸附性能先升高再降低。当FeCl₃改性溶液浓度为0.15 mol/L，焙烧温度300 ℃，反应温度为60 ℃时，改性活性炭的脱硫效率最高。
- 环境工程 /
- 活性炭 /
- 改性 /
- 脱硫 /
- 浸渍法
Abstract:
This is an essay in the field of environmental engineering. The experiment adopts the impregnation method, and uses FeCl₃ as the modifier to modify the activated carbon to study its desulfurization ability. The effects of modifier concentration, roasting temperature, and reaction temperature on the desulfurization performance of modified activated carbon were experimentally studied. Studies have shown that as the concentration of the modified solution increases, the Fe₂O₃ attached to the surface of the activated carbon increases, the specific surface area and total pore volume of the modified activated carbon decrease, and the average pore size increases; as the roasting temperature increases, the amount of Fe₂O₃ attached to the surface of the activated carbon continues. When the roasting temperature exceeds 300 ℃, the pore structure of the activated carbon surface will be sintered, which will reduce the desulfurization performance of the modified activated carbon; as the reaction temperature increases, the adsorption performance of FeCl₃/AC-0.15 first increases and then decreases. When the concentration of FeCl₃ modified solution is 0.15 mol/L, the calcination temperature is 300 ℃, and the reaction temperature is 60 ℃, the desulfurization efficiency of modified activated carbon is the highest.
- Environmental engineering /
- Activated carbon /
- Modified /
- Desulfurization /
- Impregnation method

HTML全文

图 1 改性后各吸附剂比表面积、总孔容及平均孔径的变化

Figure 1.

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图 2 FeCl₃溶液改性前后活性炭的XRD

Figure 2.

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图 3 FeCl₃/AC的SEM

Figure 3.

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图 4 改性溶液浓度对活性炭脱硫性能的影响

Figure 4.

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图 5 活性炭的硫容和穿透时间

Figure 5.

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图 6 焙烧温度对活性炭脱硫性能的影响

Figure 6.

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图 7 活性炭的硫容和穿透时间

Figure 7.

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图 8 反应温度对活性炭脱硫性能的影响

Figure 8.

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图 9 穿透时间对活性炭硫容的影响

Figure 9.

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