Hydroconversion of heptane over a Colombian montmorillonite modified with mixed pillars of Al-Zr and Al-Si

被引：11

作者：

Molina, MF ^{[1
]}

Molina, R ^{[1
]}

Moreno, S ^{[1
]}

机构：

[1] Univ Nacl Colombia, Fac Ciencias, Dept Quim, Ctr Catalisis Heterogenea, Bogota, Colombia

来源：

CATALYSIS TODAY | 2005年 / 107-08卷

关键词：

heptane hydroconversion; mixed pillared clays; montmorillonite;

D O I：

10.1016/j.cattod.2005.07.054

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

A Colombian montmorillonite was successfully pillared with solutions of Al, Al-Zr, Zr and Al-Si polyhydroxocations to obtain active catalysts for the hydroconversion of n-heptane. The catalysts were characterised by X-ray diffraction, N-2 adsorption and heptane hydroconversion tests. The catalysts modified by mixed pillaring (Al-Zr and Al-Si) showed a favourable effect on the activity, selectivity and stability, leading to an increase in heptane isomer products. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：426 / 430

页数：5

共 15 条

[1]

[Anonymous], ACS SYM SER

[2] PILLARED CLAYS - PREPARATION AND CHARACTERIZATION OF ZIRCONIUM PILLARED MONTMORILLONITE [J].

FARFANTORRES, EM ;

SHAM, E ;

GRANGE, P .

CATALYSIS TODAY, 1992, 15 (3-4) :515-526

[3] Recent advances in the synthesis and catalytic applications of pillared clays [J].

Gil, A ;

Gandía, LM ;

Vicente, MA .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 2000, 42 (1-2) :145-212

[4] Catalytic behaviour of combined palladium-acid catalysts: use of Al and Zr-pillared montmorillonite as supports Part I. Reactivity of linear, branched and cyclic hexane hydrocarbons [J].

Issaadi, R ;

Garin, F ;

Chitour, CE ;

Maire, G .

APPLIED CATALYSIS A-GENERAL, 2001, 207 (1-2) :323-332

[5] Al and Zr pillared acid-activated saponite clays: characterization and properties [J].

Kooli, F ;

Jones, W .

JOURNAL OF MATERIALS CHEMISTRY, 1998, 8 (09) :2119-2124

[6]

MARTENS JA, 1990, THEORETICAL ASPECTS, P52

[7] Zr-exchanged and pillared beidellite: preparation and characterization by chemical analysis, XRD and Zr K EXAFS [J].

MieheBrendle, J ;

Khouchaf, L ;

Baron, J ;

LeDred, R ;

Tuilier, MH .

MICROPOROUS MATERIALS, 1997, 11 (3-4) :171-183

[8] HYDROISOMERIZATION HYDROCRACKING OF DECANE OVER AL-PILLARED AND GA-PILLARED CLAYS [J].

MOLINA, R ;

MORENO, S ;

VIEIRACOELHO, A ;

MARTENS, JA ;

JACOBS, PA ;

PONCELET, G .

JOURNAL OF CATALYSIS, 1994, 148 (01) :304-314

[9] Hydroconversion of heptane over Pt/Al-pillared montmorillonites and saponites [J].

Moreno, S ;

Kou, RS ;

Poncelet, G .

JOURNAL OF CATALYSIS, 1996, 162 (02) :198-208

[10] Al-, Al,Zr-, and Zr-pillared montmorillonites and saponites: Preparation, characterization, and catalytic activity in heptane hydroconversion [J].

Moreno, S ;

Kou, RS ;

Molina, R ;

Poncelet, G .

JOURNAL OF CATALYSIS, 1999, 182 (01) :174-185

← 1 2 →