利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

23 条记录 (耗时 0.02 秒)

    Production of acetic acid with high conversion rate
    1.
    发明授权
    Production of acetic acid with high conversion rate 有权
    生产乙酸，转化率高

    公开(公告)号：US08394988B2

    公开(公告)日：2013-03-12

    申请号：US12892348

    申请日：2010-09-28

    申请人： G. Paull Torrence ,  Brian W. Hokkanen ,  Michael O. Nutt ,  Tianshu Pan ,  Ronald David Shaver

    发明人： G. Paull Torrence ,  Brian W. Hokkanen ,  Michael O. Nutt ,  Tianshu Pan ,  Ronald David Shaver

    IPC分类号： C07C51/12

    CPC分类号： C07C51/12 ,  B01J19/00 ,  C07C51/44 ,  C07C53/08

    摘要： A process for producing acetic acid comprising the steps of reacting carbon monoxide and at least one of methanol and a methanol derivative in a first reactor under conditions effective to produce a crude acetic acid product; separating the crude acetic acid product into at least one derivative stream, at least one of the at least one derivative stream comprising residual carbon monoxide; and reacting at least a portion of the residual carbon monoxide with at least one of methanol and a methanol derivative over a metal catalyst in a second reactor to produce additional acetic acid.

    摘要翻译： 一种生产乙酸的方法，包括以下步骤：使一氧化碳与甲醇和甲醇衍生物中的至少一种在有效产生粗乙酸产物的条件下在第一反应器中反应; 将粗乙酸产物分离成至少一种衍生物流，所述至少一种衍生物物流中的至少一种包含残余的一氧化碳; 以及在第二反应器中使至少一部分残留的一氧化碳与甲醇和甲醇衍生物中的至少一种在金属催化剂上反应，以产生另外的乙酸。

    Process and system for supplying vapor from drying column to light ends column
    2.
    发明授权
    Process and system for supplying vapor from drying column to light ends column 有权
    将蒸气从干燥塔供应到轻馏分塔的方法和系统

    公开(公告)号：US08378141B2

    公开(公告)日：2013-02-19

    申请号：US12857323

    申请日：2010-08-16

    申请人： Raymond J. Zinobile ,  Ronald David Shaver

    发明人： Raymond J. Zinobile ,  Ronald David Shaver

    IPC分类号： C07C51/42 ,  C07C51/44 ,  C07B63/00

    CPC分类号： C07B63/00 ,  C07C51/12 ,  C07C51/44 ,  C07C53/08

    摘要： The present invention is directed to a method of heating a light ends column through directing one or more vapor side streams from a drying column to the light ends column. The present invention is also directed to a carbonylation process for producing acetic acid, wherein one or more vapor streams from a drying column provide the external energy required to drive separation in the light ends column.

    摘要翻译： 本发明涉及通过将一个或多个蒸汽侧流从干燥塔引导到轻馏分塔来加热轻馏分塔的方法。 本发明还涉及用于生产乙酸的羰基化方法，其中来自干燥塔的一个或多个蒸气流提供驱动轻馏分塔中分离所需的外部能量。

    Method and apparatus for making acetic acid with improved productivity
    4.
    发明授权
    Method and apparatus for making acetic acid with improved productivity 有权
    制造乙酸的方法和装置，其生产率提高

    公开(公告)号：US07902397B2

    公开(公告)日：2011-03-08

    申请号：US11974106

    申请日：2007-10-11

    申请人： Ronald David Shaver

    发明人： Ronald David Shaver

    IPC分类号： C07C51/10 ,  C07C51/12

    CPC分类号： C07C51/44 ,  C07C53/08

    摘要： An improved apparatus and method of producing acetic acid includes recovering product from the residue of a light ends column and feeding the acid so recovered forward in order to increase system productivity. Load on the light ends column is reduced and load on a dehydrating column may also be lessened in a preferred embodiment where the recovered acid is fed forward without further water removal.

    摘要翻译： 一种改进的乙酸生产装置和方法包括从轻馏分塔的残余物中回收产物，并向前回收酸，以提高系统生产率。 降低轻馏分塔上的负荷，并且在优选的实施方案中，脱水塔上的负载也可能减少，其中回收的酸被向前进料而不进一步除水。

    Processes for producing acetic acid
    6.
    发明授权
    Processes for producing acetic acid 有权
    生产乙酸的方法

    公开(公告)号：US08889904B2

    公开(公告)日：2014-11-18

    申请号：US13109348

    申请日：2011-05-17

    申请人： Ronald David Shaver ,  Mark O. Scates ,  Raymond J. Zinobile

    发明人： Ronald David Shaver ,  Mark O. Scates ,  Raymond J. Zinobile

    IPC分类号： C07C51/42 ,  C07C51/44 ,  C07C51/48

    CPC分类号： C07C51/44 ,  B01D3/143 ,  B01D11/0492 ,  C07C51/12 ,  C07C51/42 ,  C07C51/48 ,  C07C53/08

    摘要： Processes for the reduction and/or removal of permanganate reducing compounds (PRC'S) formed by the carbonylation of methanol in the presence of a Group VIII metal carbonylation catalyst to produce acetic acid are disclosed. More specifically, processes for reducing and/or removing PRC's or their precursors from intermediate streams during the formation of acetic acid by said carbonylation processes are disclosed. In particular, processes in which a low boiling overhead vapor stream from a light ends column is subjected to a distillation to obtain an overhead that is subjected to an extraction to selectively remove and/or reduce PRC's from the process is disclosed. The processes include steps of recycling one or more return streams derived from the distillation step and/or the extraction step to a light ends column and/or a drying column in order to improve water control in the overall reaction system.

    摘要翻译： 公开了在VIII族金属羰基化催化剂存在下通过甲醇羰基化形成的高锰酸盐还原化合物（PRC'S）的还原和/或去除方法，以制备乙酸。 更具体地，公开了通过所述羰基化方法在乙酸形成期间从中间物流中还原和/或除去PRC或其前体的方法。 特别地，公开了将来自轻馏分塔的低沸点塔顶蒸气物流进行蒸馏以获得进行萃取以从该方法选择性除去和/或还原PRC的塔顶馏出物的方法。 这些方法包括将从蒸馏步骤和/或萃取步骤得到的一个或多个返回物流循环到轻馏分塔和/或干燥塔以便改进整个反应体系中的水分控制的步骤。