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    Method for producing glycidol by successive catalytic reactions
    2.
    发明授权
    Method for producing glycidol by successive catalytic reactions 有权
    通过连续催化反应制备缩水甘油的方法

    公开(公告)号：US09199950B2

    公开(公告)日：2015-12-01

    申请号：US14313153

    申请日：2014-06-24

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Hyun Joo Lee ,  Byoung Sung Ahn ,  Sang Deuk Lee ,  Jungho Jae ,  Ji Sik Choi

    IPC: C07D301/02 ,  C07D317/36

    CPC classification number: C07D301/02 ,  C07D303/14 ,  C07D317/36

    Abstract: Disclosed is a method for producing glycidol by successive catalytic reactions. The method includes a series of reactions for the preparation of glycerol carbonate from glycerol and the decarboxylation of the glycerol carbonate. Specifically, the method includes i) reacting glycerol with a dialkyl carbonate to prepare glycerol carbonate, and ii) subjecting the glycerol carbonate to decarboxylation wherein a base is added as a catalyst in step i) and is allowed to react with an acid to form a metal salt after step i), and the salt is used as a catalyst in step ii). According to the method, inexpensive and easy-to-purchase acid and base catalysts can be used to produce glycidol from glycerol, a by-product of biodiesel production, as a starting material in high yield with high selectivity in a convenient, simple, and environmentally friendly way. In addition, the method eliminates the need to separate the base catalyst.

    Abstract translation: 公开了通过连续催化反应制备缩水甘油的方法。 该方法包括从甘油制备甘油碳酸酯和碳酸甘油酯脱羧的一系列反应。 具体地说，该方法包括：i）使甘油与碳酸二烷基酯反应以制备甘油碳酸酯，和ii）使甘油碳酸酯脱羧，其中在步骤i）中加入碱作为催化剂，并使其与酸反应形成 步骤i）后的金属盐，并且该盐在步骤ii）中用作催化剂。 根据该方法，可以使用廉价且易于购买的酸和碱催化剂，以生产生物柴油的副产物甘油作为起始原料，以方便，简单和高效的方式以高选择性产生缩水甘油 环保的方式。 此外，该方法不需要分离碱催化剂。

    Apparatus and method for bioenergy production using regenerated acid solution
    6.
    发明授权
    Apparatus and method for bioenergy production using regenerated acid solution 有权

    公开(公告)号：US10125344B2

    公开(公告)日：2018-11-13

    申请号：US15329399

    申请日：2015-09-21

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Young Soon Um ,  Hong Gon Kim ,  Byoung Sung Ahn ,  Sang Deuk Lee ,  Chang Soo Kim ,  Dong Jin Suh ,  Kyung Min Lee

    IPC: C12M1/00 ,  C12M1/02 ,  C12M1/34

    Abstract: The apparatus includes: a pretreatment tank where biomass and a first acid solution are stirred to extract sugar components from the biomass; a hydrolysis tank where water is added to the pretreated mixture transferred from the pretreatment tank such that the concentration of the acid is reduced and the sugar components are hydrolyzed to produce an acid hydrolyzate; a first sugar-acid separation tank where the acid hydrolyzate is separated into a second acid solution and a first hydrolyzate; a second sugar-acid separation tank where the first hydrolyzate is separated into a third acid solution and a second hydrolyzate; a fermentation tank where the second hydrolyzate is fermented to produce bioenergy; and an acid solution concentration tank where a mixture of the second acid solution transferred from the first sugar-acid separation tank and the third acid solution transferred from the second sugar-acid separation tank is concentrated to a higher level for reuse.

    Method for preparing glycidol using glycerol and glycidol obtained thereby
    7.
    发明授权
    Method for preparing glycidol using glycerol and glycidol obtained thereby 有权
    使用由此获得的甘油和缩水甘油制备缩水甘油的方法

    公开(公告)号：US09518035B2

    公开(公告)日：2016-12-13

    申请号：US15015890

    申请日：2016-02-04

    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

    Inventor： Hyun Joo Lee ,  Byoung Sung Ahn ,  Sang Deuk Lee ,  Ji Sik Choi ,  Hyejeong Lee ,  Hye Jin Lee

    IPC: C07D301/02 ,  C07D317/20

    CPC classification number: C07D301/02 ,  C07D317/20

    Abstract: A method for preparing glycidol using glycerol includes mixing glycerol with urea in the presence of at least one zinc-based catalyst selected from the group consisting of Zn(NO3)2, ZnCl2, ZnO and Zn(OAc)2 under a pressure of 0.5-10 kPa at a temperature of 100-170° C. to obtain glycerol carbonate; filtering the glycerol carbonate mixed with the zinc-based catalyst through an adsorbent including a polymer resin coordinated with amine groups to separate the zinc-based catalyst and glycerol carbonate from each other; and carrying out reaction of the glycerol carbonate separated from the zinc-based catalyst in the presence of an anion alkali metal salt catalyst that is Na, K, Rb, Cs or a mixture thereof containing at least one anion selected from the group consisting of Cl−, Br−, I−, NO3−, NO2− and acetate under a pressure of 0.13-6.67 kPa at a temperature of 140-250° C. to obtain glycidol.

    Abstract translation: 使用甘油制备缩水甘油的方法包括在至少一种选自Zn（NO 3）2，ZnCl 2，ZnO和Zn（OAc）2）的锌基催化剂的存在下，在0.5- 在100-170℃的温度下10kPa，得到碳酸甘油酯; 通过包含与胺基配位的聚合物树脂的吸附剂过滤与锌基催化剂混合的甘油碳酸酯，以将锌基催化剂和甘油碳酸酯彼此分离; 在Na，K，Rb，Cs的阴离子碱金属盐催化剂或其含有至少一种选自Cl的阴离子的混合物的存在下进行从锌基催化剂分离的碳酸甘油酯的反应 - ，Br-，I-，NO 3 - ，NO 2 - 和乙酸盐，在温度为140-250℃的温度下，在0.13-6.67kPa的压力下进行，得到缩水甘油。

    Method for producing glycidol
    9.
    发明授权
    Method for producing glycidol 有权
    缩水甘油的制备方法

    公开(公告)号：US08969600B2

    公开(公告)日：2015-03-03

    申请号：US13759692

    申请日：2013-02-05

    Applicant: Korea Institute of Science and Technology

    Inventor： Hyun Joo Lee ,  Sang Deuk Lee ,  Byoung Sung Ahn ,  Chang Soo Kim ,  Ji Sik Choi

    IPC: C07D301/02

    CPC classification number: C07D301/02

    Abstract: Disclosed is a method for producing glycidol by decarboxylation of glycerol carbonate. In the method, an ionic liquid catalyst is added for the reaction. According to the method glycidol can be produced in high yield and selectivity. The method enables the production of glycidol in an easy, simple and environmentally friendly way.

    Abstract translation: 公开了通过碳酸甘油脱羧制备缩水甘油的方法。 在该方法中，为反应添加离子液体催化剂。 根据方法，可以高产率和选择性生产缩水甘油。 该方法能够以简单，简单和环保的方式生产缩水甘油。

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