Catalytic oxidation of soot over monovalent copper modified ZSM-5

ZHU Yan-tao; LÜ Gang; SONG Chong-lin; LI Bo; CHEN Ke

Volume 45 Issue 1

Jan. 2017

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Article Navigation > Journal of Fuel Chemistry and Technology > 2017 > 45(1): 106-112

ZHU Yan-tao, LÜ Gang, SONG Chong-lin, LI Bo, CHEN Ke. Catalytic oxidation of soot over monovalent copper modified ZSM-5[J]. Journal of Fuel Chemistry and Technology, 2017, 45(1): 106-112.

Citation:

ZHU Yan-tao, LÜ Gang, SONG Chong-lin, LI Bo, CHEN Ke. Catalytic oxidation of soot over monovalent copper modified ZSM-5[J]. Journal of Fuel Chemistry and Technology, 2017, 45(1): 106-112.

ZHU Yan-tao, LÜ Gang, SONG Chong-lin, LI Bo, CHEN Ke. Catalytic oxidation of soot over monovalent copper modified ZSM-5[J]. Journal of Fuel Chemistry and Technology, 2017, 45(1): 106-112.

Citation:

ZHU Yan-tao, LÜ Gang, SONG Chong-lin, LI Bo, CHEN Ke. Catalytic oxidation of soot over monovalent copper modified ZSM-5[J]. Journal of Fuel Chemistry and Technology, 2017, 45(1): 106-112.

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Catalytic oxidation of soot over monovalent copper modified ZSM-5

Tianjin University State Key Laboratory of Engines, Tianjin 300072, China

Funds:

National Natural Science Foundation of China 51476115

the Major State Basic Research Development Program of China 973 program

the Major State Basic Research Development Program of China 2013CB228506

the Tianjin Research Program of Application Foundation and Advanced Technology 13JCZDJC35800

Received Date: 2016-06-24
Rev Recd Date: 2016-11-14

Available Online: 2021-01-23

Publish Date: 2017-01-10

Abstract

Abstract

ZSM-5 zeolites were modified with different contents of monovalent copper by solid-state ion exchange method and used as the catalysts in soot oxidation; the effect of monovalent copper content on the catalytic performance was investigated through extensive characterization. The results indicate that high content of monovalent copper can be loaded on ZSM-5 zeolite by the solid-state ion exchange method, whereas has little detriment to the original micro-structure of ZSM-5. With the increase of copper content in catalyst, the reduction peaks at low temperature and high temperature both shift to lower temperature, while the area of low temperature reduction peak is increased. The catalytic activity of Cu-modified zeolite in soot oxidation decreases after an initial increase with the increase of Cu content. When the Cu loading exceeds 11%, the dispersion of copper species deteriorates, accompanying with a decrease in the catalytic activity for soot oxidation. Meanwhile, the addition of NO to the feed (O₂/He) can enhance the soot oxidation.
- soot oxidation,
- catalytic activity,
- solid-state ion exchange,
- ZSM-5 molecular sieve,
- monovalent copper

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References(25)

References

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