Process for purifying a crude ethanol product
    3.
    发明授权
    Process for purifying a crude ethanol product 失效
    纯化粗乙醇产物的方法

    公开(公告)号:US08748676B2

    公开(公告)日:2014-06-10

    申请号:US13197748

    申请日:2011-08-03

    IPC分类号: C07C27/04

    摘要: In one embodiment, the invention is to a process for purifying a crude ethanol product. The process comprises the step of hydrogenating acetic acid in a first reaction zone in the presence of a first catalyst to form the crude ethanol product comprising ethanol, acetaldehyde, acetic acid, water, and acetal. The process further comprises the step of separating at least a portion of the crude ethanol product into a refined ethanol stream and a by-product stream. The refined ethanol stream comprises ethanol and acetaldehyde; and the by-product stream comprises acetic acid and a substantial portion of the water from the crude ethanol product. The process further comprises the step of hydrolyzing in a second reaction zone at least a portion of the acetal.

    摘要翻译: 在一个实施方案中,本发明涉及纯化粗乙醇产物的方法。 该方法包括在第一催化剂存在下在第一反应区中氢化乙酸以形成包含乙醇,乙醛,乙酸,水和缩醛的粗乙醇产物的步骤。 该方法还包括将至少一部分粗乙醇产物分离成精制乙醇料流和副产物流的步骤。 精制乙醇流包含乙醇和乙醛; 并且副产物流包含乙酸和来自粗乙醇产物的大部分水。 该方法还包括在第二反应区中水解缩醛的至少一部分的步骤。

    Process for purifying ethanol
    6.
    发明授权
    Process for purifying ethanol 失效
    乙醇纯化方法

    公开(公告)号:US08680343B2

    公开(公告)日:2014-03-25

    申请号:US13197754

    申请日:2011-08-03

    IPC分类号: C07C29/149

    摘要: In one embodiment, the invention is to a process for producing ethanol. The process comprises the step of hydrogenating an acetic acid feed stream in a first reactor to form a crude ethanol product. The crude ethanol product may comprise, among other components, ethanol, acetaldehyde, and residual acetic acid. The process further comprises the step of recovering acetaldehyde from the crude ethanol product. The process further comprises the steps of feeding a first portion of the recovered acetaldehyde to the first reactor and reacting the first portion of the recovered acetaldehyde in the first reactor to form additional ethanol. In addition, the inventive process may comprise the steps of feeding a second portion of the recovered acetaldehyde to a second reactor and reacting the second portion of the recovered acetaldehyde in the second reactor to form an additional product.

    摘要翻译: 在一个实施方案中,本发明涉及一种生产乙醇的方法。 该方法包括在第一反应器中氢化乙酸进料流以形成粗乙醇产物的步骤。 粗乙醇产物可以包括乙醇,乙醛和残余乙酸等组分。 该方法还包括从粗乙醇产物中回收乙醛的步骤。 该方法还包括以下步骤:将回收的乙醛的第一部分进料到第一反应器中,并使第一部分回收的乙醛在第一反应器中反应形成另外的乙醇。 此外,本发明的方法可以包括将第二部分回收的乙醛进料到第二反应器并使第二部分回收的乙醛在第二反应器中反应以形成另外的产物的步骤。

    Processes for producing anhydrous ethanol compositions
    8.
    发明授权
    Processes for producing anhydrous ethanol compositions 有权
    无水乙醇组合物的制备方法

    公开(公告)号:US08541633B2

    公开(公告)日:2013-09-24

    申请号:US12903756

    申请日:2010-10-13

    IPC分类号: C07C29/149

    摘要: In one embodiment, the present invention is to a process for producing a anhydrous ethanol composition comprising hydrogenating acetic acid in the presence of a catalyst to form a crude ethanol product; separating in a first column at least a portion of the crude ethanol product into a first distillate comprising ethanol, water and ethyl acetate, and a first residue comprising acetic acid; separating in a second column at least a portion of the first distillate into a second distillate comprising ethyl acetate and a second residue comprising ethanol and water; separating in a third column at least a portion of the second residue into a third distillate comprising ethanol and residual water and a third residue comprising separated water; and dehydrating at least a portion of the third distillate to form the anhydrous ethanol composition. The anhydrous ethanol composition, as formed, comprises less than 1 wt. % water, based on the total weight of the anhydrous ethanol composition.

    摘要翻译: 在一个实施方案中,本发明涉及一种生产无水乙醇组合物的方法,包括在催化剂存在下使乙酸氢化以形成粗乙醇产物; 在第一塔中将至少一部分粗乙醇产物分离成包含乙醇,水和乙酸乙酯的第一馏出物和包含乙酸的第一残余物; 在第二塔中将第一馏出物的至少一部分分离成包含乙酸乙酯和含有乙醇和水的第二残余物的第二馏出物; 在第三塔中将第二残留物的至少一部分分离成包含乙醇和残余水的第三馏出物和包含分离的水的第三残余物; 并使至少一部分第三馏出物脱水形成无水乙醇组合物。 形成的无水乙醇组合物包含小于1wt。 %水,基于无水乙醇组合物的总重量。

    Integrated Acid and Alcohol Production Process
    10.
    发明申请
    Integrated Acid and Alcohol Production Process 有权
    综合酸和酒精生产过程

    公开(公告)号:US20130116476A1

    公开(公告)日:2013-05-09

    申请号:US13292802

    申请日:2011-11-09

    IPC分类号: C07C29/74 C07C29/80

    摘要: An integrated process for producing ethanol, comprising the step of reacting carbon monoxide with at least one reactant in a reactor containing a reaction medium to produce a liquid reaction product comprising acetic acid. The reaction medium comprises water, acetic acid, methyl acetate, a halogen promoter, and a first catalyst. The process further comprises the steps of directly feeding the liquid reaction product from the reactor to a distillation column and withdrawing from it an overhead stream comprising methyl acetate, and/or halogen promoter, a bottoms stream comprising a solution of the first catalyst, and a liquid acetic acid sidestream; and hydrogenating acetic acid of the liquid acetic acid sidestream in the presence of a second catalyst and under conditions effective to form a crude ethanol product comprising ethanol and water. No flashing vessel is used to purify the liquid reaction product. Ethanol is recovered from the crude ethanol product.

    摘要翻译: 一种用于生产乙醇的整合方法,包括在含有反应介质的反应器中使一氧化碳与至少一种反应物反应以产生包含乙酸的液体反应产物的步骤。 反应介质包括水,乙酸,乙酸甲酯,卤素促进剂和第一催化剂。 该方法还包括以下步骤:将液体反应产物从反应器直接进料到蒸馏塔并从其中排出包含乙酸甲酯和/或卤素助催化剂的塔顶物流,包含第一催化剂溶液的塔底流,和 液体醋酸侧流; 和在第二种催化剂的存在下,在有效形成包含乙醇和水的粗乙醇产物的条件下,将液体乙酸侧流的乙酸氢化。 没有闪蒸容器用于净化液体反应产物。 从粗乙醇产物中回收乙醇。