公开(公告)号：US20070277429A1

公开(公告)日：2007-12-06

申请号：US10766740

申请日：2004-01-26

申请人： John Jackam ,  Joel Pierce ,  Frank Fahrenbruck

发明人： John Jackam ,  Joel Pierce ,  Frank Fahrenbruck

IPC分类号： C10L1/18

CPC分类号： C10L1/19 ,  C10G2300/1011 ,  C11C3/003 ,  Y02E50/13 ,  Y02P30/20

摘要： A system and method for converting a high free fatty acid grease feedstock to biodiesel. The process comprises a glycerolysis reaction to convert free fatty acids to glycerides and a base catalyzed transesterification reaction to produce fatty acid methyl esters and glycerin in the absence of solvents. In preferred embodiments, both glycerin and methanol are recycled. The process can process a feedstock containing up to 100 percent free fatty acid content to produce biodiesel and glycerin with minimal waste generation.

摘要翻译： 将高游离脂肪酸润滑脂原料转化为生物柴油的系统和方法。 该方法包括将游离脂肪酸转化为甘油酯的甘油分解反应和碱催化的酯交换反应以在不存在溶剂的情况下生产脂肪酸甲酯和甘油。 在优选的实施方案中，甘油和甲醇都被再循环。 该方法可以处理含有高达100％游离脂肪酸含量的原料，以最少的废物产生生产生物柴油和甘油。

公开(公告)号：US20070277432A1

公开(公告)日：2007-12-06

申请号：US11893019

申请日：2007-08-14

申请人： John Jackam ,  Joel Pierce ,  Jeffrey Jones ,  Richard Talley

发明人： John Jackam ,  Joel Pierce ,  Jeffrey Jones ,  Richard Talley

IPC分类号： C10L1/182

CPC分类号： C10L1/19 ,  C10G2300/1011 ,  C10L1/026 ,  Y02E50/13 ,  Y02P30/20

摘要： A system and method for the conversion of free fatty acids to glycerides and the subsequent conversion of glycerides to glycerin and biodiesel includes the transesterification of a glyceride stream with an alcohol. The fatty acid alkyl esters are separated from the glycerin to produce a first liquid phase containing a fatty acid alkyl ester rich (concentrated) stream and a second liquid phase containing a glycerin rich (concentrated) stream. The fatty acid alkyl ester rich stream is then subjected to distillation, preferably reactive distillation, wherein the stream undergoes both physical separation and chemical reaction. The fatty acid alkyl ester rich stream is then purified to produce a purified biodiesel product and a glyceride rich residue stream. Biodiesel may be further recovered from the glyceride rich residue stream, by further separation of and/or processing of glycerides/free fatty acids contained therein. The glycerin rich second liquid phase stream may further be purified to produce a purified glycerin product and a (second) wet alcohol stream. Neutralization of the alkaline stream, formed during the alkali-catalyzed transesterification process, may proceed by the addition of a mineral or an organic acid.

摘要翻译： 用于将游离脂肪酸转化为甘油酯的系统和方法以及随后将甘油酯转化为甘油和生物柴油包括甘油酯流与醇的酯交换反应。 将脂肪酸烷基酯与甘油分离以产生含有富含脂肪酸烷基酯（浓缩）料流的第一液相和含富甘油（浓缩）料流的第二液相。 然后将富含脂肪酸烷基酯的物流进行蒸馏，优选反应蒸馏，其中物流分离和化学反应。 然后纯化富含脂肪酸的富含烷基酯的料流以产生纯化的生物柴油产物和富含甘油酯的残余物流。 可以通过进一步分离和/或加工其中所含的甘油酯/游离脂肪酸，从富含甘油酯的残余物流中进一步回收生物柴油。 富含甘油的第二液相物流可以进一步纯化以产生纯化的甘油产物和（第二）湿的醇流。 在碱催化的酯交换过程中形成的碱性流的中和可以通过加入矿物或有机酸来进行。