Hydrogenation of citral over Ni and Ni-Sn catalysts

Yilmaz, Selahattin; AYKAÇ, Hilal

Hydrogenation of citral over Ni and Ni-Sn catalysts

Hilal AYKAÇ, (İzmir Yüksek Teknoloji Enstitüsü, Mühendislik Fakültesi, Kimya Mühendisliği Bölümü, İzmir, Türkiye)

Selahattin YILMAZ (İzmir Yüksek Teknoloji Enstitüsü, Mühendislik Fakültesi, Kimya Mühendisliği Bölümü, İzmir, Türkiye)

Turkish Journal of Chemistry

1 0

Yıl: 2008 Cilt: 32 Sayı: 5 Sayfa Aralığı: 623 - 633 Metin Dili: İngilizce İndeks Tarihi: 29-07-2022

Hydrogenation of citral over Ni and Ni-Sn catalysts

Öz:

Liquid phase citral hydrogenation over zeolite-supported monometallic Ni and bimetallic Ni-Sn catalysts was studied. The zeolite support materials were Na-Y, Na-mordenite, and clinoptilolite. Ni and Sn contents of the monometallic and bimetallic catalysts were 8.1-9.2 wt% and 0.46 wt%, respectively. The type of the zeolite support affected the activity and selectivity of the catalysts differently. The main product of the citral hydrogenation reaction was citronellal, for both monometallic (84.5% yield) and bimetallic (44.5% yield) catalysts. The addition of promoter increased the selectivity to unsaturated alcohols (geraniol+nerol), i.e. it changed from 0.9% to 6.3% over mordenite and from 0.9% to 2.1% over Na-Y-supported catalysts. Furthermore, activity of the Ni catalysts decreased while the quantity of acetal remained almost constant. Intimate contact between active metal, promoter, and support, and a catalyst with a high concentration of weak acid sites gave high selectivity to geraniol+nerol.

Anahtar Kelime:

Konular: Mühendislik, Kimya

Belge Türü: Makale Makale Türü: Araştırma Makalesi Erişim Türü: Erişime Açık

1.T. Salmi, P. Mâki-Arvela, E. Toukoniitty, A.K. Neyestanaki, L.P. Tiainen, L.E. Lindfors, R. Sjöholm and B. Laine, Appl. Catal. A: Gen. 196, 93-102 (2000).
2.I.M.J. Vilella, S.R. de Miguel, de C.S.M. Lecea, A. Linares-Solano and O.A. Scelza, Appl. Catal. A: Gen. 281, 247-258 (2004).
3.M.A Aramendia, V. Borau, C. Jimenez, J.M. Marinas, A. Porras, and F.J. Urbano, J. Catal, 172, 46-54 (1997).
4. A.M. Suva, O.A.A. Santos, M.J. Mendes, E. Jordâo, and M.A. Praga, Appl. Çatal. A: Gen. 241, 155-165 (2003).
5. P. Mâki-Arvela, L. Tiainen, M. Lindblad, K. Demirkan, N. Kumar, R. Sjöholm, T. Ollonqvist, J. Vâyrynen, T. Salmi and D. Yu. Murzin, Appl. Çatal. A: Gen. 241, 271-288 (2003).
6.A.B. Da Silva, E. Jordao, M.J. Mendes and P. Fouilloux, Appl. Çatal. A: Gen. 148, 253 (1997).
7.J.N. Coupe, E. Jordâo, M.A. Fraga and M.J. Mendes, Appl. Catal. A: Gen. 199, 45-51, (2000).
8.A.P Jansen and R.A. van Santen, J. Phys. Chem. 94, 6764 (1990).
9.S. Recchia, C. Dossi, A. Fusi, L. Sordelli and R. Psaro, Appl. Catal. A: Gen. 182, 41-51 (1999).
10.S. Yılmaz, Ş. Uçar, L. Artok and H. Güleç, Appl. Catal. A: General 287, 261-266 (2005).
11.P. Reyes, H. Rojas, G. Peçeni and J.L.G. Fierro, J. Mol. Cat. A: Chem. 179, 293-299 (2002).
12. B. Baeza, I. Rodriguez-Ramos and A. Guerrero-Ruiz, Appl. Catal. A: Gen. 205, 227-237 (2001).
13. L. Sordelli, R. Psaro, G. Vlaic, A. Cepparo, S. Recchia, C. Dossi, F. Achille and Z. Robertino, J. Çatal. 182, 186-198 (1999).
14. G. Blackmond, I.R. Oukaci, B. Blanc and P. Gallezot, J. Çatal. 131, 401-411 (1991).
15.A. Romero, A. Garrido, A. Nieto-Marquez, P. Sanchez, A. de Lucas, J.L. Valverde, Micropor. Mesopor. Mater. 110, 318-329, 2008.
16. B. Bachiller-Baeza, A. Guerro-Ruiz, P. Wang, I. Rodrigues-Ramos, J. Catal. 204, 450-459, 2001.
17.J. Aumo, J. Lilja, P. Maki Arvela, T. Salmi, M. Sundell, H. Vainio, D. Yu Murzin, Catal. Lett. 84, 219-224, 2002.
18. P. Maki-Arvela, L.P. Tianien, A.K. Neyestanaki, R. Sjöholm, T.K. Rantakyla, E. Laine, T. Salmi, D.Yu Murzin, App. Catal. A: Gen 237, 181-200, 2002.

APA	AYKAÇ H, Yilmaz S (2008). Hydrogenation of citral over Ni and Ni-Sn catalysts. , 623 - 633.
Chicago	AYKAÇ Hilal,Yilmaz Selahattin Hydrogenation of citral over Ni and Ni-Sn catalysts. (2008): 623 - 633.
MLA	AYKAÇ Hilal,Yilmaz Selahattin Hydrogenation of citral over Ni and Ni-Sn catalysts. , 2008, ss.623 - 633.
AMA	AYKAÇ H,Yilmaz S Hydrogenation of citral over Ni and Ni-Sn catalysts. . 2008; 623 - 633.
Vancouver	AYKAÇ H,Yilmaz S Hydrogenation of citral over Ni and Ni-Sn catalysts. . 2008; 623 - 633.
IEEE	AYKAÇ H,Yilmaz S "Hydrogenation of citral over Ni and Ni-Sn catalysts." , ss.623 - 633, 2008.
ISNAD	AYKAÇ, Hilal - Yilmaz, Selahattin. "Hydrogenation of citral over Ni and Ni-Sn catalysts". (2008), 623-633.

APA	AYKAÇ H, Yilmaz S (2008). Hydrogenation of citral over Ni and Ni-Sn catalysts. Turkish Journal of Chemistry, 32(5), 623 - 633.
Chicago	AYKAÇ Hilal,Yilmaz Selahattin Hydrogenation of citral over Ni and Ni-Sn catalysts. Turkish Journal of Chemistry 32, no.5 (2008): 623 - 633.
MLA	AYKAÇ Hilal,Yilmaz Selahattin Hydrogenation of citral over Ni and Ni-Sn catalysts. Turkish Journal of Chemistry, vol.32, no.5, 2008, ss.623 - 633.
AMA	AYKAÇ H,Yilmaz S Hydrogenation of citral over Ni and Ni-Sn catalysts. Turkish Journal of Chemistry. 2008; 32(5): 623 - 633.
Vancouver	AYKAÇ H,Yilmaz S Hydrogenation of citral over Ni and Ni-Sn catalysts. Turkish Journal of Chemistry. 2008; 32(5): 623 - 633.
IEEE	AYKAÇ H,Yilmaz S "Hydrogenation of citral over Ni and Ni-Sn catalysts." Turkish Journal of Chemistry, 32, ss.623 - 633, 2008.
ISNAD	AYKAÇ, Hilal - Yilmaz, Selahattin. "Hydrogenation of citral over Ni and Ni-Sn catalysts". Turkish Journal of Chemistry 32/5 (2008), 623-633.