期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 102, 期 3-4, 页码 441-448出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2010.12.022
关键词
Small-pore zeolites; Selective Catalytic Reduction; NH3-SCR; Copper Zeolites; SSZ-13; SAPO-34
资金
- Department of Energy Basic Energy Sciences [DE-FG02-03ER15468]
- ACS-PRF [48480-AC5]
The NH3-SCR activity of the small-pore zeolites, Cu-SSZ-13, Cu-SSZ-16, and Cu-SAPO-34, is investigated using a high-throughput reactor system. These copper exchanged small-pore zeolites have high SCR activity between 150 and 500 degrees C and are shown to be much more hydrothermally stable than the medium-pore zeolite, Cu-ZSM-5. The degree of copper exchange, the dimensionality of the framework, and heteroatom framework substitution all impact the SCR activity and hydrothermal stability of the materials. Of the small-pore zeolites tested, Cu-SSZ-13 and Cu-SAPO-34 display superior SCR performance, both before and after high-temperature hydrothermal treatment. (C) 2010 Elsevier B.V. All rights reserved.
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