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2. 发明申请

WO2015128202A1 CONTINUOUS PROCESS FOR PRODUCING AN ETHYLENE GLYCOL STREAM 审中-公开
标题翻译：用于生产乙烯甘油水泥的连续方法
公开(公告)号：WO2015128202A1
公开(公告)日：2015-09-03
申请号：PCT/EP2015/053053
申请日：2015-02-13
申请人： BIOCHEMTEX S.P.A.
发明人： BERNARDI, Marco , BOZZANO, Irene , TODARO, Daniela
IPC分类号： C07C29/141 , C07C29/60 , C07C29/00
CPC分类号： C07C29/132 , C07C29/60 , C07C31/205 , C07C31/202
摘要： 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.
摘要翻译：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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