Synthesis of fatty acid methyl esters via direct transesterification with methanol/carbon dioxide mixtures from spent coffee grounds feedstock

被引：52

作者：

Calixto, Filipe ^{[1
]}

Fernandes, Joao ^{[1
]}

Couto, Ricardo ^{[1
]}

Hernandez, Elvis J. ^{[2
]}

Najdanovic-Visaka, Vesna ^{[1
]}

Simoes, Pedro C. ^{[1
]}

机构：

[1] Univ Nova Lisboa, REQUIMTE, Dept Quim, Fac Ciencias & Tecnol, P-2829516 Caparica, Portugal

[2] Univ Autonoma Madrid, Secc Dept Ciencias Alimentac, E-28049 Madrid, Spain

来源：

GREEN CHEMISTRY | 2011年 / 13卷 / 05期

关键词：

VAPOR-LIQUID-EQUILIBRIA; BIODIESEL PRODUCTION; SUPERCRITICAL METHANOL; SOYBEAN OIL; PHASE-EQUILIBRIA; VEGETABLE-OILS; RAPESEED OIL; FUEL; TRIGLYCERIDES;

D O I：

10.1039/c1gc15101k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The feasibility of in situ extraction and transesterification of spent coffee ground oil into fatty acid methyl esters with supercritical methanol has been investigated in the temperature range 473-603 K, and in the pressure range 10.0-30.0 MPa. At 30.0 MPa and 603 K, a fatty acid methyl esters (FAME) yield of 84.9% was obtained. Carbon dioxide was added to methanol with the aim of reducing the operating temperature and pressure. It was demonstrated that at a reaction temperature of 573 K, pressure of 10.0 MPa and a CO2/MeOH molar ratio of 0.11, a FAME yield of 93.4% was obtained.

引用

页码：1196 / 1202

页数：7

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