PROCEDE AMELIORE DE FABRICATION D'ESTERS ETHYLIQUES A PARTIR DE CORPS GRAS D ORIGINE NATURELLE
    1.
    发明公开
    PROCEDE AMELIORE DE FABRICATION D'ESTERS ETHYLIQUES A PARTIR DE CORPS GRAS D ORIGINE NATURELLE 有权
    PROCEDE AMELIORE DE FABRICATION D'ESTERS ETHYLIQUES PARTIR DE CORPS GRAS D ORIGINE NATURELLE

    公开(公告)号:EP1941014A1

    公开(公告)日:2008-07-09

    申请号:EP06808164.5

    申请日:2006-09-19

    IPC分类号: C11C3/00 C07C67/03

    摘要: The invention concerns a method for obtaining quasi-quantitative fatty acid ethyl esters useful as diesel oil substitutes, from natural, vegetable or animal, oils or fats, or other mixtures of glycerides, including the following successive steps: a step (a) which consists in transesterifying the oil, fat or the mixture of glycerides with ethanol using a soluble catalyst, or a catalyst becoming soluble during the reaction; a step (b) which consists in decanting and eliminating the formed glycerin, without resorting to evaporation of excess ethanol; a step (c) which consists in performing a second transesterification reaction to obtain a product whereof the ester content is at least 97 wt. %; a step (d) which consists in evaporating excess ethanol in the presence of a catalyst in conditions adapted to avoid inverse reaction of transesterification, the ethanol obtained being practically anhydrous (it may be recycled in the process without being rectified); a step (e) which consists in purifying the ester by washing sequences with water; and a step (f) which consists in drying the mixture of ester under reduced pressure.

    摘要翻译: 本发明涉及用于从天然,植物或动物,油或脂肪或甘油酯的其它混合物获得可用作柴油替代品的准定量脂肪酸乙酯的方法,所述方法包括以下连续步骤: - 步骤(a),其包括 在使用可溶性催化剂或催化剂在反应期间变得可溶的情况下使油,脂肪或甘油酯与乙醇的混合物酯交换; 步骤(b)包括滗析和除去所形成的甘油,而不借助过量乙醇的蒸发; 步骤(c),其包括进行第二酯交换反应以获得酯含量至少为97重量%的产物。 %; 步骤(d)包括在催化剂存在下在适于避免酯交换反应的条件下蒸发过量乙醇,所得乙醇实际上是无水的(其可以在该方法中循环而不经过精馏); 步骤(e),其包括通过用水洗涤序列来纯化酯; 和步骤(f),其包括在减压下干燥酯的混合物。

    PROCEDE PERFECTIONNE DE FABRICATION D'ESTERS ETHYLIQUES A PARTIR DE CORPS GRAS D ORIGINE NATURELLE
    2.
    发明公开
    PROCEDE PERFECTIONNE DE FABRICATION D'ESTERS ETHYLIQUES A PARTIR DE CORPS GRAS D ORIGINE NATURELLE 有权
    改进工艺用于生产乙基由天然脂肪,

    公开(公告)号:EP1941013A1

    公开(公告)日:2008-07-09

    申请号:EP06808163.7

    申请日:2006-09-19

    IPC分类号: C11C3/00 C07C67/03

    CPC分类号: C11C3/003 C10L1/026 Y02E50/13

    摘要: A method allowing, from natural fat or oils, vegetable or animal, or from other glyceride mixtures, to obtain in a quasi-quantitative way fatty acid ethyl esters that can be used as gas oil substitutes, comprises the succession of stages as follows: a stage (a) wherein the oil, the fat or the glyceride mixture is transesterified by ethanol using a soluble catalyst or a catalyst that becomes soluble during the reaction, a stage (b) wherein the glycerin formed is decanted and removed, without requiring an excess ethanol evaporation operation, a stage (c) wherein a second transesterification reaction is carried out so as to obtain a product whose ester content is at least 97% by mass, a stage (d) wherein controlled neutralization of the catalyst is carried out, a stage (e) wherein the excess ethanol is removed by distillation, a stage (f) wherein the ester undergoes purification by means of water wash sequences, and a stage (g) wherein the ester mixture is dried under reduced pressure.

    PROCEDE DE FABRICATION D'ESTERS ETHYLIQUES D'ACIDES GRAS A PARTIR DE TRIGLYCERIDES ET D'ALCOOLS
    6.
    发明公开
    PROCEDE DE FABRICATION D'ESTERS ETHYLIQUES D'ACIDES GRAS A PARTIR DE TRIGLYCERIDES ET D'ALCOOLS 有权
    用于生产脂肪酸乙酯自甘油三酯和醇

    公开(公告)号:EP1934321A1

    公开(公告)日:2008-06-25

    申请号:EP06808140.5

    申请日:2006-09-14

    摘要: The invention concerns a method for making linear monocarboxylic acid ethyl esters of 6 to 26 carbon atoms from acid or neutral, virgin or recycled vegetable or animal oils. The method is characterized in that it includes: a step (1) which consists in reacting said vegetable or animal oil, with methanol, in the presence of a heterogeneous catalyst comprising a combination formed between at least one metal oxide and alumina or a combination formed between at least two oxides and optionally with alumina; and a step (2) which consists in reacting the product derived from step (1), with ethanol in the presence of a heterogeneous catalyst such as the heterogeneous catalyst defined for use in step (1). Said method enables a mixture of fatty acid esters rich in fatty acid ethyl esters and a high purity glycerin to be obtained from vegetable or animal oils.