[1]谢爱娟,罗士平,陶宇炜,等.γ-MnO2/海泡石-凹凸棒土低温脱硝催化剂研究[J].常州大学学报(自然科学版),2018,30(04):19-27.[doi:10.3969/j.issn.2095-0411.2018.04.004]
　XIE Aijuan,LUO Shiping,TAO Yuwei,et al.Study on the Catalyst of γ-MnO2/ Sepiolite-Attapulgite for Low Temperature Denitration[J].Journal of Changzhou University(Natural Science Edition),2018,30(04):19-27.[doi:10.3969/j.issn.2095-0411.2018.04.004]
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γ-MnO2/海泡石-凹凸棒土低温脱硝催化剂研究()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
第30卷
期数:
2018年04期
页码:
19-27
栏目:
化学化工
出版日期:
2018-07-28

文章信息/Info

Title:
Study on the Catalyst of γ-MnO2/ Sepiolite-Attapulgite for Low Temperature Denitration
作者:
谢爱娟1; 罗士平1; 陶宇炜2; 屠美倩1
1. 常州大学 石油化工学院,江苏 常州 213164; 2. 常州大学 信息化建设与管理中心,江苏 常州 213164
Author(s):
XIE Aijuan1;  LUO Shiping1;  TAO Yuwei2;  TU Meiqian1
1. School of Petrochemical Engineering, Changzhou University, Changzhou 213164 China; 2. Center of Information Development and Management, Changzhou University, Changzhou 213164 China
关键词:
海泡石;  凹凸棒土;  γ-MnO2;  选择性催化还原;  NOx转化率
Keywords:
sepiolite;  attapulgite;  γ-MnO2;  selective catalytic reduction;  NOx conversion
分类号:
X 831
DOI:
10.3969/j.issn.2095-0411.2018.04.004
文献标志码:
A
摘要:
采用天然的海泡石(Sepiolite, SEP)和凹凸棒土(Attapulgite, ATP)复合作为催化剂载体,负载活性组分γ-MnO2,从而制备一系列γ-MnO2/SEP-ATP复合催化剂,并应用于低温氨选择性催化还原脱硝技术。同时对优选的催化剂进行了抗SO2性能、N2选择性吸附以及稳定性测试。结果表明,当γ-MnO2/SEP中掺杂了ATP时,催化剂表面的Br?nsted酸位普遍提高,促进了催化剂对NH3的吸附。活性测试结果表明,当γ-MnO2质量分数为7%、海泡石和ATP质量比为1:1时,催化剂的脱硝效果最佳, 在150 ℃就能达95%以上。证明SEP与ATP的复合不仅能提升γ-MnO2的低温活性,同时也可以有效地保护催化剂。
Abstract:
Using natural sepiolite(SEP)and attapulgite(ATP)as a co-catalyst carrier, γ-MnO2 was loaded onto the surface of SEP-ATP to obtain a series of γ-MnO2/SEP-ATP catalysts, which was further applied in the denitration technology of NH3 selective catalytic reduction(NH3SCR)for low temperature. Meanwhile, the anti-SO2 performance, N2 selective adsorption and stability test for optimized catalysts were also carried out. The results indicated that when ATP was doped in the γ-MnO2/SEP, the Br?nsteds on the surface of the catalyst were generally increased, which could promote the adsorption of NH3. The activity test results illustrated that when the mass fraction of γ-MnO2 was 7%, and the mass ratio of SEP and ATP was 1:1, the denitration effect of the catalyst was the best, and the NOx conversion could reach over 95% at 150 ℃. It is proved that the combination of SEP and ATP can not only improve the low-temperature activity of the γ-MnO2, but also effectively protect the catalyst.

参考文献/References:


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备注/Memo

备注/Memo:
基金项目:江苏省重点研发计划(BE2016654); 常州市科技支撑计划(CE20165022)。
作者简介:谢爱娟(1968—)女,江苏武进人,硕士,高级实验师。 E-mail:xaj@cczu.edu.cn
更新日期/Last Update: 2018-07-30