Integrated acid and alcohol production process
    3.
    发明授权
    Integrated acid and alcohol production process 有权
    集成酸和酒精生产工艺

    公开(公告)号:US08614359B2

    公开(公告)日:2013-12-24

    申请号:US13292802

    申请日:2011-11-09

    IPC分类号: C07C29/149

    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。

    Integrated Process For Producing Ethanol
    5.
    发明申请
    Integrated Process For Producing Ethanol 失效
    生产乙醇的综合方法

    公开(公告)号:US20130116479A1

    公开(公告)日:2013-05-09

    申请号:US13292848

    申请日:2011-11-09

    IPC分类号: C07C27/04 C07C29/80

    摘要: In one embodiment, the invention is to a process for producing ethanol, the process comprising the steps of carbonylating methanol in a carbonylation system in the presence of a carbonylation catalyst under conditions effective to form acetic acid; hydrogenating the acetic acid in a hydrogenation system in the presence of a hydrogenation catalyst to form a crude ethanol product comprising ethanol and water; separating the ethanol from the water to form an ethanol stream and a water stream; and directing at least a portion of the water stream to the carbonylation system, e.g., for use as an extractant in a permanganate reducing compound removal system.

    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,该方法包括以下步骤:在有效形成乙酸的条件下,在羰基化催化剂存在下,在羰基化体系中羰基化甲醇; 在加氢催化剂存在下,在氢化体系中氢化乙酸,形成包含乙醇和水的粗乙醇产物; 将乙醇与水分离以形成乙醇流和水流; 并将至少一部分水流引导到羰基化系统,例如用作高锰酸盐还原化合物去除系统中的萃取剂。

    Producing Ethanol Using Two Different Streams From Acetic Acid Carbonylation Process
    6.
    发明申请
    Producing Ethanol Using Two Different Streams From Acetic Acid Carbonylation Process 有权
    使用两种不同的流从乙酸羰基化过程生产乙醇

    公开(公告)号:US20130116478A1

    公开(公告)日:2013-05-09

    申请号:US13292837

    申请日:2011-11-09

    IPC分类号: C07C29/147

    摘要: This invention relates to processes for producing ethanol from at least two different streams obtained by carbonylating methanol. The process comprises the steps of reacting carbon monoxide with at least one reactant in a first reactor containing a reaction medium to produce a reaction solution comprising acetic acid, wherein the at least one reactant is selected from the group consisting of methanol, methyl acetate, methyl formate, dimethyl ether and mixtures thereof and wherein the reaction medium comprises water, acetic acid, methyl iodide, and a first catalyst, purifying the reaction solution to yield an acetic acid product stream and at least one derivative stream, introducing the acetic acid product stream and the at least one derivative stream into a second reactor in the presence of a second catalyst to form a crude ethanol product, and recovering ethanol from the crude ethanol product.

    摘要翻译: 本发明涉及从通过羰基化甲醇获得的至少两种不同物流生产乙醇的方法。 该方法包括在含有反应介质的第一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反应溶液的步骤,其中至少一种反应物选自甲醇,乙酸甲酯,甲基 甲酸,二甲醚及其混合物,其中反应介质包括水,乙酸,甲基碘和第一催化剂,纯化反应溶液以产生乙酸产物流和至少一种衍生物流,将乙酸产物流 和所述至少一种衍生物流在第二催化剂存在下进入第二反应器以形成粗乙醇产物,并从粗乙醇产物中回收乙醇。

    Integrated process for the production of vinyl acetate from acetic acid via acetaldehyde
    8.
    发明授权
    Integrated process for the production of vinyl acetate from acetic acid via acetaldehyde 失效
    通过乙醛从乙酸生产乙酸乙烯酯的综合方法

    公开(公告)号:US08178715B2

    公开(公告)日:2012-05-15

    申请号:US12317995

    申请日:2008-12-31

    IPC分类号: C07C67/02 C07C69/72

    摘要: This invention provides an integrated multistep economical process for the production of vinyl acetate monomer (VAM) from acetic acid in the vapor phase. First, acetic acid is selectively hydrogenated over a hydrogenating catalyst composition to form acetaldehyde. Acetaldehyde so formed can be converted to ethylidene diacetate via reaction with acetic anhydride. In a subsequent step so formed ethylidene diacetate is thermally decomposed to form VAM and acetic acid. Alternatively, acetaldehyde formed in the first step can selectively be reacted with ketene to form VAM. In an embodiment of this invention reaction of acetic acid and hydrogen over platinum and iron supported on silica selectively produces acetaldehyde in a vapor phase at a temperature of about 300° C., which is selectively hydrogenated over platinum supported catalyst to form ethanol and dehydrated over NAFION catalyst to form ethylene at a temperature of about 185° C., which is mixed with molecular oxygen, acetic acid and reacted over a palladium/gold/potassium catalyst supported on titania to form VAM at a temperature of about 150° C. to 170° C.

    摘要翻译: 本发明提供了一种用于在蒸汽相中从乙酸生产乙酸乙烯酯单体(VAM)的综合多步经济方法。 首先,在氢化催化剂组合物上选择性氢化乙酸以形成乙醛。 如此形成的乙醛可以通过与乙酸酐反应而转化为二乙酸亚乙酯。 在随后的步骤中,如此形成的亚乙基二乙酸酯被热分解形成VAM和乙酸。 或者,在第一步中形成的乙醛可以选择性地与乙烯酮反应形成VAM。 在本发明的一个实施方案中,乙酸和氢对负载在二氧化硅上的铂和铁的反应选择性地在约300℃的温度下产生气相中的乙醛,其在铂负载催化剂上选择性氢化以形成乙醇并脱水 NAFION催化剂,在约185℃的温度下形成乙烯,其与分子氧,乙酸混合,并在负载在二氧化钛上的钯/金/钾催化剂上反应以在约150℃至约150℃的温度下反应形成VAM 170℃