Characterization and application of dolomite as catalytic precursor for canola and sunflower oils for biodiesel production

被引：105

作者：

Correia, Leandro Marques ^{[1
]}

Campelo, Natalia de Sousa ^{[1
]}

Novaes, Denise Sousa ^{[1
]}

Cavalcante, Celio Loureiro, Jr. ^{[1
]}

Antonio Cecilia, Juan ^{[2
]}

Rodriguez-Castellon, Enrique ^{[2
]}

Vieira, Rodrigo Silveira ^{[1
]}

机构：

[1] Univ Fed Ceara, Dept Engn Quim, Grp Pesquisas Separacoes Adsorcao, BR-60455760 Fortaleza, Ceara, Brazil

[2] Univ Malaga, Fac Ciencias, Dept Quim Inorgan, E-29071 Malaga, Spain

来源：

CHEMICAL ENGINEERING JOURNAL | 2015年 / 269卷

关键词：

Biodiesel; Precursor dolomite; Heterogeneous catalyst; METHYL-ESTERS; MIXED OXIDES; TRANSESTERIFICATION; CONVERSION; SHELL; MG; CA;

D O I：

10.1016/j.cej.2015.01.097

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The catalytic activity of precursor dolomite as a heterogeneous catalyst in biodiesel production has been investigated. The dolomitic material is a double calcium and magnesium carbonate, which when calcinated decomposes into CaO and MgO that are highly basic. The materials were characterized by XRD, TG-DTG, CO2-TPD, FTIR, XPS, SEM, and N-2 adsorption/desorption at -196 degrees C. The raw material was activated and used as a catalyst for the transesterification of canola and sunflower oils with methanol. The conversion of canola and sunflower oils to methyl esters was optimized, under different catalyst amount and oil/methanol ratio, and the maximum conversions were: canola (98.81 +/- 0.02 wt.%) and sunflower (96.52 +/- 0.43 wt.%). (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：35 / 43

页数：9

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