BIO-DERIVED ETHYLENE GLYCOL COMPOSITIONS FOR POLYESTER BOTTLES
    2.
    发明申请
    BIO-DERIVED ETHYLENE GLYCOL COMPOSITIONS FOR POLYESTER BOTTLES 审中-公开
    生物衍生的乙二醇甘油酯组合物

    公开(公告)号:US20170058078A1

    公开(公告)日:2017-03-02

    申请号:US14915661

    申请日:2014-09-02

    CPC classification number: C08G63/183 C08G63/16

    Abstract: The present specification discloses a composition comprising a plurality of diols which is useful for the production of polyester bottles, wherein the diols are mainly obtained from the conversion of a ligno-cellulosic biomass feedstock stream. The composition comprises ethylene glycol and at least one diol selected from the group of diols having a formula of CH(OH)2, wherein n is the total number of carbons and is an integer in the range from 3 to 20, z is an integer in the range from 0 to 2n, and C1 and C2 are each attached to one of the OH groups of the formula (e.g. 1,2-Propylene glycol, 1,2-Butanediol and 1,2-Pentanediol) and wherein the composition is substantially free of diols which absorb light at a wavelength of 275 nm, so that the percent light transmission of the composition at a wavelength of 275 nm is greater than 40%.

    Abstract translation: 本说明书公开了一种组合物,其包含可用于生产聚酯瓶的多个二醇,其中二醇主要由木质纤维素生物质原料流的转化获得。 组合物包含乙二醇和选自具有式CH(OH)2的二醇的至少一种二醇,其中n是碳的总数,并且是3-20的整数,z是整数 在0至2n的范围内,并且C1和C2各自连接到下式的OH基之一(例如1,2-丙二醇,1,2-丁二醇和1,2-戊二醇),其中组合物为 基本上不含吸收波长275nm的光的二醇,使得组合物在275nm波长处的透光百分比大于40%。

    CONTINUOUS PROCESS FOR PRODUCING AN ETHYLENE GLYCOL STREAM
    3.
    发明申请
    CONTINUOUS PROCESS FOR PRODUCING AN ETHYLENE GLYCOL STREAM 审中-公开
    用于生产乙烯甘油水泥的连续方法

    公开(公告)号:US20160368842A1

    公开(公告)日:2016-12-22

    申请号:US15120756

    申请日:2015-02-13

    CPC classification number: C07C29/132 C07C29/60 C07C31/205 C07C31/202

    Abstract: It is disclosed a continuous process for producing a polyols stream comprising ethylene glycol and propylene glycol, wherein a liquid sugar stream comprising water and at least a monomeric sugar is introduced into a first reaction zone and subjected to a first reaction, which is a hydrogenation reaction of the at least a monomeric sugar, at a first catalytic conditions and in the presence of a first hydrogen gas to produce an hydrogenated mixture comprising at least a sugar alcohol. At least a portion of the hydrogenated mixture and at least a portion of the first hydrogen gas are then transferred to a second reaction zone and subjected to a second reaction, which is a hydrogenolysis reaction of the at least a sugar alcohol, at second catalytic conditions to produce a hydrogenolysis mixture comprising at least a polyol. The second reaction occurs in the presence of a second hydrogen gas, wherein the second hydrogen gas comprises the portion of the first hydrogen gas which has been transferred to the second reaction. The first reaction is conducted at a first reaction pressure which is greater than or equal to the second reaction pressure, and the hydrogen gas is then released at the end of the conversion process of the second reaction zone at a discharge pressure which is less than the pressure of the first reaction. In this way, the transferring of at least a portion of the hydrogenated mixture and at least a portion of the first hydrogen gas from the first reaction zone to the second reaction zone may be done without the use of any pumping system, specifically of a pumping system which is capable of pumping a pressurized liquid/gas mixture.

    Abstract translation: 公开了一种用于生产包含乙二醇和丙二醇的多元醇流的连续方法,其中将包含水和至少单体糖的液态糖料流引入第一反应区并进行第一反应,其为氢化反应 的至少一种单体糖,在第一催化条件下和在第一氢气存在下,产生至少包含糖醇的氢化混合物。 然后将至少一部分氢化混合物和至少一部分第一氢气转移到第二反应区,并在第二催化条件下进行第二反应,其是至少糖醇的氢解反应 以产生至少包含多元醇的氢解混合物。 第二反应在第二氢气存在下进行,其中第二氢气包括已转移到第二反应的第一氢气的部分。 第一反应在大于或等于第二反应压力的第一反应压力下进行,然后在第二反应区的转化过程结束时,在小于第二反应压力的排出压力下释放氢气 第一反应的压力。 以这种方式,可以在不使用任何泵送系统(特别是泵送)的情况下将至少一部分氢化混合物和至少一部分第一氢气从第一反应区转移到第二反应区 系统,其能够泵送加压的液体/气体混合物。

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