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在模拟旋转反应器中一氧化碳在ASC催化剂上对一氧化氮的还原作用：一氧化碳、水和二氧化硫的影响

NO reduction by CO over ASC catalysts in a simulated rotary reactor: effect of CO, HO and SO.

作者信息

Sun Peiliang, Cheng Xingxing, Lai Yanhua, Wang Zhiqiang, Ma Chunyuan, Chang Jingcai

机构信息

National Engineering Lab for Coal-fired Pollutant Emission Reduction, School of Energy and Power Engineering, Shandong University Jinan 250061 China

School of Energy and Power Engineering, Shandong University Jinan 250061 China

出版信息

RSC Adv. 2018 Oct 30;8(64):36604-36615. doi: 10.1039/c8ra07658h. eCollection 2018 Oct 26.

DOI:10.1039/c8ra07658h
PMID:35558965
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9088861/
Abstract

The influence of CO, HO and SO on the NO reduction by CO over Fe/Co activated semi-coke catalyst was investigated in a simulated rotary reactor. The results showed that, in the simulated rotary reactor, the influence of CO and HO on the NO adsorption was significant at low temperatures, and the inhibition became weak when increasing the temperature. However, the NO adsorption efficiency could not be improved by increasing temperature after catalyst sulfur poisoning. The heavily inhibited NO adsorption process, which was due to the competitive adsorption and formation of the sulfate, resulted in a low NO reduction efficiency in the presence of CO, HO or SO. The DRIFT study showed that the dominant effect of CO, HO and SO on the NO adsorption was the inhibition of the free nitrate ions formation. In addition, the introduction of CO, HO and SO could not change the route of NO reduction, but just reduced the degree of the NO + CO reduction.

摘要

在模拟旋转反应器中研究了CO、H₂O和SO₂对Fe/Co活化半焦催化剂上CO还原NO的影响。结果表明，在模拟旋转反应器中，低温下CO和H₂O对NO吸附的影响显著，升温后抑制作用减弱。然而，催化剂硫中毒后，升高温度并不能提高NO吸附效率。由于硫酸盐的竞争吸附和形成导致NO吸附过程受到严重抑制，使得在存在CO、H₂O或SO₂时NO还原效率较低。漫反射红外傅里叶变换光谱（DRIFT）研究表明，CO、H₂O和SO₂对NO吸附的主要影响是抑制游离硝酸根离子的形成。此外，引入CO、H₂O和SO₂不会改变NO还原途径，只是降低了NO + CO还原的程度。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/4385cc16e786/c8ra07658h-f14.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/20e1b3c11052/c8ra07658h-f9.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/e8cf835e5e4e/c8ra07658h-f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/fb1d4cfb501a/c8ra07658h-f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/cde4aec8a322/c8ra07658h-f13.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/4385cc16e786/c8ra07658h-f14.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/f15c158d6ce3/c8ra07658h-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/b6ed25ce377c/c8ra07658h-f2.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/fa23e65628e6/c8ra07658h-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/cefba361eb6b/c8ra07658h-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/2dc829bd9e88/c8ra07658h-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/6b0453e8470c/c8ra07658h-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/8e2733e30de4/c8ra07658h-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/20e1b3c11052/c8ra07658h-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/ae4eec2efff5/c8ra07658h-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/e8cf835e5e4e/c8ra07658h-f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/fb1d4cfb501a/c8ra07658h-f12.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7f62/9088861/4385cc16e786/c8ra07658h-f14.jpg

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