Hydroisomerization of n-alkanes over Pt-SAPO-11 and Pt-SAPO-31 synthesized from aqueous and nonaqueous media

Sinha, Anil K. ; Sivasanker, Subramanian ; Ratnasamy, Paul (1998) Hydroisomerization of n-alkanes over Pt-SAPO-11 and Pt-SAPO-31 synthesized from aqueous and nonaqueous media Industrial & Engineering Chemistry Research, 37 (6). pp. 2208-2214. ISSN 0888-5885

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Official URL: http://pubs.acs.org/doi/abs/10.1021/ie9707228

Related URL: http://dx.doi.org/10.1021/ie9707228

Abstract

The acidic and catalytic properties of the medium pore molecular sieves SAPO-11 and SAPO-31 synthesized by two different routes [from aqueous and nonaqueous (ethylene glycol) media] are compared. Samples synthesized from the nonaqueous medium possess more acidity (due to higher substitution of P5+ by Si4+ and consequent lower concentration of silica islands) and larger hydroisomerization activities and selectivities. The molecular sieves, after loading 0.5 wt % Pt, were used as catalysts for isomerization of n-hexane, n-octane, and n-hexadecane. Reactions at the pore mouth at the external surface are more predominant in the case of SAPO-31 than SAPO-11.

Item Type:Article
Source:Copyright of this article belongs to American Chemical Society.
ID Code:41398
Deposited On:28 May 2011 10:02
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