Comparative Study of SO 2 and SO 2 /SO 3 Poisoning and Regeneration of Cu/BEA and Cu/SSZ-13 for NH 3 SCR

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Fältnamn	Indikatorer	Metadata
000		03955naa a2200469 4500
001		oai:research.chalmers.se:0e003d5e-36ae-48a2-a896-65a26d45ee1c
003		SwePub
008		211028s2021 \| \|\|\|\|\|\|\|\|\|\|\|000 \|\|eng\|
024	7	a https://research.chalmers.se/publication/5267562 URI
024	7	a https://doi.org/10.1007/s40825-021-00203-42 DOI
040		a (SwePub)cth
041		a engb eng
042		9 SwePub
072	7	a art2 swepub-publicationtype
072	7	a ref2 swepub-contenttype
100	1	a Auvray, Xavier,d 1986u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)auvray
245	1 0	a Comparative Study of SO 2 and SO 2 /SO 3 Poisoning and Regeneration of Cu/BEA and Cu/SSZ-13 for NH 3 SCR
264		c 2021-10-21
264	1	b Springer Science and Business Media LLC,c 2021
338		a electronic2 rdacarrier
520		a Two copper-exchanged zeolites, Cu/SSZ-13 and Cu/BEA, were studied as catalysts for the selective reduction of NOx by NH3 (NH3-SCR). Their activities for standard SCR (NOx = NO) and fast SCR (NOx = 50% NO + 50% NO2) were measured before and after sulfur poisoning at 250 °C. The effect of 30 ppm SO2 and a mixture of 24 ppm SO3 + 6 ppm SO2 was evaluated. The repetition of subsequent activity measurements served as regeneration method in SCR conditions. SO2 deactivated Cu/SSZ-13 whereas Cu/BEA was only moderately affected. SO3 led to stronger deactivation of both catalysts than SO2. However, also for this case, the Cu/BEA was significantly less affected than Cu/SSZ-13, even though Cu/BEA contained larger amount of stored sulfur. One possible reason for this could be the large pores of Cu/BEA, where the sulfur species possibly resulted in less sterical hindrance than in the small pore SSZ-13 structure. NH3 temperature-programmed desorption (NH3-TPD) showed no loss of storage sites upon sulfur treatment and subsequent regeneration. Partial activity recovery was observed after a period in SCR conditions at 400 °C and 500 °C. Temperature at 300 °C was insufficient to regenerate the catalysts. Diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) of NO adsorption suggested that SO2 interacts with the ZCuOH sites on Cu/SSZ-13, causing the strong poisoning.
650	7	a NATURVETENSKAPx Kemix Oorganisk kemi0 (SwePub)104042 hsv//swe
650	7	a NATURAL SCIENCESx Chemical Sciencesx Inorganic Chemistry0 (SwePub)104042 hsv//eng
650	7	a TEKNIK OCH TEKNOLOGIERx Kemiteknikx Annan kemiteknik0 (SwePub)204992 hsv//swe
650	7	a ENGINEERING AND TECHNOLOGYx Chemical Engineeringx Other Chemical Engineering0 (SwePub)204992 hsv//eng
650	7	a NATURVETENSKAPx Kemix Annan kemi0 (SwePub)104992 hsv//swe
650	7	a NATURAL SCIENCESx Chemical Sciencesx Other Chemistry Topics0 (SwePub)104992 hsv//eng
653		a Cu/zeolites
653		a Poisoning
653		a NH SCR 3
653		a SO and SO 2 3
700	1	a Arvanitidou, Mariau Chalmers tekniska högskola,Chalmers University of Technology4 aut
700	1	a Högström, Åsau Chalmers tekniska högskola,Chalmers University of Technology4 aut
700	1	a Jansson, Jonas,d 1973u Volvo Group4 aut0 (Swepub:cth)jansson
700	1	a Fouladvand, Sheedeh,d 1984u Volvo Group4 aut0 (Swepub:cth)sheedeh
700	1	a Olsson, Louise,d 1974u Chalmers tekniska högskola,Chalmers University of Technology4 aut0 (Swepub:cth)louisej
710	2	a Chalmers tekniska högskolab Volvo Group4 org
773	0	t Emission Control Science and Technologyd : Springer Science and Business Media LLCg 7:4, s. 232-246q 7:4<232-246x 2199-3629x 2199-3637
856	4	u https://research.chalmers.se/publication/526756/file/526756_Fulltext.pdfx primaryx freey FULLTEXT
856	4	u https://link.springer.com/content/pdf/10.1007/s40825-021-00203-4.pdf
856	4 8	u https://research.chalmers.se/publication/526756
856	4 8	u https://doi.org/10.1007/s40825-021-00203-4

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