Chemisorption of ethyl acetate during hydrogenation of acetic acid to ethanol
    3.
    发明授权
    Chemisorption of ethyl acetate during hydrogenation of acetic acid to ethanol 有权
    在乙酸氢化成乙醇期间乙酸乙酯的化学吸附

    公开(公告)号:US09050585B2

    公开(公告)日:2015-06-09

    申请号:US13371064

    申请日:2012-02-10

    摘要: A hydrogenation catalyst and process using the catalyst for converting a mixture comprising acetic acid and ethyl acetate to ethanol at a first temperature, and the catalyst desorbs ethyl acetate, in the absence of hydrogen, at a second temperature that is greater than the first temperature. The catalyst has a suitable chemisorption of ethyl acetate at the first temperature in the absence of hydrogen. In one embodiment, the first temperature ranges from 125° C. to 350° C. and the second temperature ranges from 300° C. to 600° C. The catalyst comprises one or more active metals or oxide thereof on a support that comprises tungsten or an oxide thereof. The one or more active metals are selected from the group consisting of cobalt, copper, gold, iron, nickel, palladium, platinum, iridium, osmium, rhenium, rhodium, ruthenium, tin, zinc, lanthanum, cerium, manganese, chromium, vanadium, and molybdenum.

    摘要翻译: 一种氢化催化剂和在第一温度下将包含乙酸和乙酸乙酯的混合物转化成乙醇的催化剂的方法,催化剂在不存在氢气的情况下在大于第一温度的第二温度下解吸乙酸乙酯。 在不存在氢气的情况下,催化剂在第一温度下具有适当的乙酸乙酯化学吸附。 在一个实施方案中,第一温度范围为125℃至350℃,第二温度范围为300℃至600℃。催化剂在包含钨的载体上包含一种或多种活性金属或其氧化物 或其氧化物。 一种或多种活性金属选自钴,铜,金,铁,镍,钯,铂,铱,锇,铼,铑,钌,锡,锌,镧,铈,锰,铬,钒 ,和钼。

    Integrated process for producing ethanol and water balance control
    8.
    发明授权
    Integrated process for producing ethanol and water balance control 有权
    用于生产乙醇和水平衡控制的综合过程

    公开(公告)号:US08809599B2

    公开(公告)日:2014-08-19

    申请号:US13292863

    申请日:2011-11-09

    IPC分类号: C07C27/04

    摘要: Described is an integrated process for producing ethanol from acetic acid in which the water from ethanol production is used to control water balance in the acetic acid production. In one embodiment, the invention comprises 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 in the carbonylation reaction medium.

    摘要翻译: 描述了一种从乙酸生产乙醇的综合方法,其中来自乙醇生产的水用于控制乙酸生产中的水平衡。 在一个实施方案中,本发明包括在羰基化体系中在羰基化催化剂存在下,在有效形成乙酸的条件下羰基化甲醇,在加氢催化剂存在下,在氢化体系中氢化乙酸,形成粗乙醇产物, 乙醇和水,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至羰基化系统,例如用于羰基化反应介质中。