Effect of the amount of SO42-/La2O3 on HZSM-5 activity for esterification reaction

被引：13

作者：

Resende, Ricardo F. ^{[1
]}

Vieira, Sara S. ^{[1
,4
]}

Santos, Nadiene Ap. V. ^{[1
]}

Fernandes, Auguste ^{[2
]}

Ribeiro, Maria Filipa ^{[2
]}

Magriotis, Zuy M. ^{[3
]}

机构：

[1] Univ Fed Lavras, Dept Quim, BR-37200000 Lavras, MG, Brazil

[2] Univ Lisbon, Inst Super Tecn, Ctr Quim Estrutural, Av Rovisco Pais, P-1049001 Lisbon, Portugal

[3] Univ Fed Lavras, Dept Engn, BR-37200000 Lavras, MG, Brazil

[4] Univ Fed Minas Gerais, Dept Quim, BR-31270901 Belo Horizonte, MG, Brazil

来源：

CATALYSIS TODAY | 2020年 / 344卷

关键词：

Esterification; Biodiesel; Lanthanum oxide; HZSM-5; Superacid solids; FREE FATTY-ACID; BIODIESEL PRODUCTION; CATALYTIC CRACKING; ZEOLITE CATALYSTS; OLEIC-ACID; METHANOL; TRANSESTERIFICATION; OXIDE; OILS; TRANSFORMATION;

D O I：

10.1016/j.cattod.2018.11.072

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The influence of the amount of SO42-/La2O3 (2-20%) over structural and catalytic properties of HZSM-5 was evaluated. The catalysts were characterized by thermogravimetric analysis, X-ray diffraction, adsorption/desorption of N-2 and infrared spectroscopy and they were tested in the esterification reaction of oleic acid and methanol. The influence of the amount of catalyst (2, 5 and 10%) and the influence of molar ratio oleic acid:methanol (1:10, 1:20 and 1:45) were evaluated. The characterization analyses indicated that the starting material had not significant structural and textural changes, but the acidity had changes. The most expressive results of conversion were obtained in the molar ratio 1:10 and 5% of catalyst. The most efficient catalyst was that modified with 10% of SO42-/La2O3 (10OLS/HZ), which presented maximum conversion (100%). In general, the catalysts were efficient. It was possible to observe that most of the modifications produced catalysts more active than the starting material.

引用

页码：150 / 157

页数：8

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