Production of biodiesel and glycerin from high free fatty acid feedstocks

    公开(公告)号:US09725397B2

    公开(公告)日:2017-08-08

    申请号:US13924235

    申请日:2013-06-21

    申请人: REG Seneca, LLC

    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. 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.

    Production of Products from Feedstocks Containing Free Fatty Acids
    6.
    发明申请
    Production of Products from Feedstocks Containing Free Fatty Acids 审中-公开
    从含有游离脂肪酸的原料生产产品

    公开(公告)号:US20160289578A1

    公开(公告)日:2016-10-06

    申请号:US15024707

    申请日:2014-07-09

    申请人: REG SENECA, LLC

    摘要: The present invention provides a method for producing a refined fatty acid alkyl ester (FAAE) product from feed-stocks containing free fatty acids. The method comprises glycerolysis and transesterification processes combined with end-product refining. Products produced from a transesterification reaction are separated into a crude FAAE stream and a crude glycerin stream. The crude glycerin stream is further processed to produce a glyceride stream from which additional FAAEs may be produced.

    摘要翻译: 本发明提供从含有游离脂肪酸的原料制备精制脂肪酸烷基酯(FAAE)产物的方法。 该方法包括与最终产品精炼相结合的甘油分解和酯交换方法。 由酯交换反应产生的产物分离成粗FAAE流和粗甘油流。 将粗甘油流进一步加工以产生甘油酯流,其中可以从其中产生另外的FAAE。

    PROCESS FOR CONVERTING LOW AND HIGH FREE FATTY ACID CONTAINING OILS INTO NO FREE FATTY ACID CONTAINING OILS AND ASSOCIATED SYSTEMS AND DEVICES
    8.
    发明申请
    PROCESS FOR CONVERTING LOW AND HIGH FREE FATTY ACID CONTAINING OILS INTO NO FREE FATTY ACID CONTAINING OILS AND ASSOCIATED SYSTEMS AND DEVICES 有权
    将低含量和高含脂肪酸的油转化成不含脂肪酸和相关系统和装置的方法

    公开(公告)号:US20160152924A1

    公开(公告)日:2016-06-02

    申请号:US15016829

    申请日:2016-02-05

    申请人: Technochem

    发明人: Sanjeev Agarwal

    IPC分类号: C11C3/02 C11B3/14

    摘要: The disclosed apparatus, systems and methods relate to the conversion of high free fatty acid (“HFFA”) containing oils defined as oils containing 20-100% free fatty acids (“FFA”) and low free fatty acid (“LFFA”) containing oils defined as oils containing 1-20% free fatty acids (FFA) into oil with less than about 0.5-1% FFA. If the feedstock is HFFA oil, the process includes a combination of partial glycerolysis of HFFA oils to produce LFFA oils and subsequent stripping of LFFA oils to produce NFFA oils via steam distillation. If the feedstock is LFFA oil, the process includes stripping of LFFA oils to produce NFFA oils via steam distillation and subjecting FFA to partial glycerolysis to convert FFA to oil.

    摘要翻译: 所公开的装置,系统和方法涉及含有定义为含有20-100%游离脂肪酸(“FFA”)和低游离脂肪酸(“LFFA”)的油的高游离脂肪酸(“HFFA”)的转化, 油定义为含有1-20%游离脂肪酸(FFA)的油,含油量小于约0.5-1%FFA。 如果原料是HFFA油,则该方法包括HFFA油的部分甘油分解的组合以产生LFFA油,并随后通过蒸汽蒸馏来生产LFFA油来生产NFFA油。 如果原料是LFFA油,则该方法包括汽提LFFA油以通过蒸汽蒸馏生产NFFA油,并对FFA进行部分甘油分解以将FFA转化为油。