Continuous industrial production of unsaturated aliphatic aldehydes in a
tube bundle reactor
    2.
    发明授权
    Continuous industrial production of unsaturated aliphatic aldehydes in a tube bundle reactor 失效
    在管束反应器中连续工业生产不饱和脂族醛

    公开(公告)号:US6013843A

    公开(公告)日:2000-01-11

    申请号:US85836

    申请日:1998-05-28

    摘要: A process for continuous industrial production of unsaturated aliphatic aldehydes having a boiling range from 95 to 136.degree. C. by oxidative dehydrogenation of the corresponding alcohols with an oxygen-comprising gas over a supported catalyst consisting of copper, silver and/or gold on an inert support in a tube bundle reactor, rapid cooling of the reaction gases and removal of the aldehydes from the resulting condensate with recycling of the unconverted alcohols comprisesa) vaporizing the alcohol,b) admixing the alcohol vapor with an oxygen-comprising gas,c) initially passing the resulting oxygen-comprising alcohol vapor at above the dew point of the alcohol but below the commencement temperature of the reaction through a layer of one of the abovementioned supported catalysts which is at least 0.5 cm in thickness and only thend) reacting the oxygen-comprising alcohol vapor at from 300 to 600.degree. C. in a sufficient number, for the desired capacity, of parallel reaction tubes surrounded by a fluidic heat transfer medium, packed with the supported catalyst and having an internal diameter D of from about 0.5 to 3 cm and a length of at least 5 cm, to form the corresponding aldehyde.

    摘要翻译: 通过相对应的醇与含氧气体在由铜,银和/或金组成的负载型催化剂上惰性惰性的连续工业生产不饱和脂族醛的方法,其沸程为95至136℃ 在管束反应器中的支撑,反应气体的快速冷却以及未转化的醇的再循环从所得冷凝物中除去醛包括a)蒸发醇,b)将醇蒸气与含氧气体混合,c) 首先将所得的含氧醇醇蒸气在醇的露点以上但低于反应开始温度的上述负载型催化剂层中的至少0.5cm厚度,然后d)使 含氧的醇蒸气在300-600℃下以足够的数量容纳所需的并联反应管 由流体传热介质引入,填充有负载的催化剂并且具有约0.5至3cm的内径D和至少5cm的长度以形成相应的醛。