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Alkaline treatment on commercially available aluminum rich mordenite

Alkaline treatment on commercially available aluminum rich mordenite. —read the literature with a critical view 报告人：张丽康 导 师：刘国柱. 2012/12/01. A.N.C. van laak et al. / Applied Catalysis A: General 382 (2010) 65–72. Whatever the stand of the literature, we can still learn something….

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Alkaline treatment on commercially available aluminum rich mordenite

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  1. Alkaline treatment on commercially available aluminum rich mordenite —read the literature with a critical view 报告人：张丽康 导 师：刘国柱 2012/12/01 A.N.C. van laak et al. / Applied Catalysis A: General 382 (2010) 65–72

  2. Whatever the stand of the literature, we can still learn something…

  3. Results 1) H-MOR-1M-15min: Inter-crystalline porosity and mesoporous volume: 0.01 0.21 cm3 · g−1 External surface area: 36 85 m2 · g−1 Microvolume and crystallinity were preserved Na-MOR requires longer contact time to obtain similar porosity Changing the contact time and alkaline concentration, intracrystallinemesoporositycan be obtained for mordenite with Si/Al ratio as low as 10 The increase in activity is soly related to the shorter diffusion pathlength, but not the increase in acid site density

  4. Experiments Materials three agglomerated small mordenite crystallites J.C. Groen, T. Sano, J.A. Moulijn, J. Pérez-Ramírez, J. Catal. 251 (2007) 21–27

  5. Experiments • t-plot method: Vmeso；Vmicro；SextBJH-method: pore size distribution Characterization

  6. Experiments Catalyticmeasurements activity selectivity

  7. discussion 35nm Inter-crystalline • H-LZM-5(Si/Al Ratio-5.7) J.C. Groen, T. Sano, J.A. Moulijn, J. Pérez-Ramírez, J. Catal. 251 (2007) 21–27

  8. discussion L.I. Meza, M.W. Anderson, J.R. Agger, C.S. Cundy, Z.G.J.C.a.W.Y. RurenXu, Stud.Surf. Sci. Catal., Elsevier (2007) 177–184.

  9. discussion • Na-LZM-5(Si/Al Ratio-5.5) Reason 1: larger cations protection in Na-LZM-5 Reason 2: structural defects formed by extra-framework aluminum after calcination Similar pore size distribution with longer contact time was obtained for Na-LZM-5comparing with H-LZM-5.

  10. Pore size distribution is more diverse discussion • BASF (8.5)and CBV 21A (10) 3-8nm Average pore size is 100nm

  11. discussion • benzene alkylation with propylene H-LZM-5-parent VSH-LZM-5-at-1.0M-15min M.S. Holm, S. Svelle, F. Joensen, P. Beato, C.H. Christensen, S. Bordiga, M. Bjørgen, Appl. Catal., A 356 (2009) 23–30.

  12. Thanks for attention! Let’s discuss about this work

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