Influencing factors on low-temperature deNOx performance of Mn–La–Ce–Ni–Ox/PPS catalytic filters applied for cement kiln

Autor: Bo Yang, Yanwei Zeng, Bing Li, Shubao Shen, Yuesong Shen, Dahai Zheng, Shemin Zhu, Yun-Shun Qiu
Rok vydání: 2015
Předmět:
Zdroj: Journal of Industrial and Engineering Chemistry. 24:148-152
ISSN: 1226-086X
DOI: 10.1016/j.jiec.2014.09.022
Popis: Effects of catalyst loading amount, reaction temperature, O 2 concentration, NH 3 /NO molar ratio and SO 2 on low-temperature catalytic performance of the Mn–La–Ce–Ni–O x (Mn/La/Ce/Ni = 2.5:2.5:1:1 in mol)/PPS for NH 3 -SCR of NO were mainly studied. Results showed that the filter with catalyst loading amount of 250 g/m 2 obtained more than 95% NO removal efficiency at 200 °C under filtration velocity of 1 m/min. The NO removal efficiency was still above 85% by injecting 300 ppm SO 2 at 200 °C. Anyway, the Mn–La–Ce–Ni–O x /PPS catalytic filter is promising to achieve the expectation of simultaneous removing particulate and NO x from low-sulfur flue gas in cement kiln.
Databáze: OpenAIRE
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