Apparatus and process for monitor and control of an ammoxidation reactor with a fourier transform infrared spectrometer

    公开(公告)号:US06607447B2

    公开(公告)日:2003-08-19

    申请号:US09945464

    申请日:2001-08-30

    IPC分类号: G01N3508

    摘要: The present invention is a method and an apparatus for identifying and quantifying components in an effluent stream from an ammoxidation reactor, the apparatus comprising a microprocessor; and a Fourier Transform infrared spectrometer having a sample cell through which may flow a portion of the effluent stream, an infrared source to emit infrared radiation and pass the infrared radiation through the effluent stream, an infrared detector to detect transmitted infrared radiation at the selected infrared wavelengths and to generate absorbance data due to absorbance of the infrared radiation by the components, wherein each of the components absorbs infrared radiation at one or more of the infrared wavelengths, and an output apparatus to provide the absorbance data to the microprocessor; wherein the microprocessor is programmed to identify and quantify each of the plurality of components based upon the absorbance data and calibration data, the calibration data being obtained from recovery run analyses and calibration analyses in the sample cell. The method may be applied to utilize the apparatus to provide real-time control of the operation of an ammoxidation reactor, based on the analytical results obtained by the FT-IR spectrometer and the calibration model developed therefor.

    Ammoxidation of a mixture of alcohols to a mixture of nitriles to acetonitrile and HCN
    6.
    发明授权
    Ammoxidation of a mixture of alcohols to a mixture of nitriles to acetonitrile and HCN 有权
    将醇的混合物氨腈化为腈与乙腈和HCN的混合物

    公开(公告)号:US06204407B1

    公开(公告)日:2001-03-20

    申请号:US09517404

    申请日:2000-03-02

    IPC分类号: C07C25300

    摘要: A process for increasing the yield of one or both co-products HCN and acetonitrile produced during the manufacture of acrylonitrile comprising introducing a hydrocarbon selected from the group consisting of propylene and propane, a mixture comprising one or more alcohols selected from crude methanol, crude ethanol or crude propanol, ammonia and air into a reaction zone containing an ammoxidation catalyst, reacting the hydrocarbon, alcohol, ammonia and oxygen over said catalyst at an elevated temperature to produce acrylonitrile, hydrogen cyanide and acetonitrile, and recovering the acrylonitrile, hydrogen cyanide and acetonitrile from the reactor.

    摘要翻译: 一种用于提高在制备丙烯腈期间产生的一种或两种共同产物HCN和乙腈的产率的方法,包括引入选自丙烯和丙烷的烃,包含一种或多种选自粗甲醇,粗乙醇 或粗丙醇,氨和空气加入到含有氨氧化催化剂的反应区中,在高温下使烃,醇,氨和氧在所述催化剂上反应,以产生丙烯腈,氰化氢和乙腈,并回收丙烯腈,氰化氢和乙腈 从反应堆。

    Ammoxidation catalysts containing germanium to produce high yields of
acrylonitrile
    7.
    发明授权
    Ammoxidation catalysts containing germanium to produce high yields of acrylonitrile 失效
    含有锗的氨氧化催化剂产生高产率的丙烯腈

    公开(公告)号:US5688739A

    公开(公告)日:1997-11-18

    申请号:US642707

    申请日:1996-05-03

    CPC分类号: B01J23/31 B01J23/8876

    摘要: A catalyst having the atomic ratios set forth in the empirical formula below: A.sub.a B.sub.b C.sub.c Ge.sub.d Bi.sub.e Mo.sub.12 O.sub.x where A=two or more of alkali metals, In and Tl B=one or more of Mg, Mn, Ni, Co, Ca, Fe, Ce, Sm, Cr, Sb, and W; preferably B equals the combination of Fe and at least one element selected from the group consisting of Ni and Co and at least one element selected from the group consisting of Mg, Mn, Ca, Ce, Sn, Cr, Sb, and W C=one or more of Pb, Eu, B, Sn, Te and Cu a=0.05 to 5.0 b=5 to 12 c=0 to 5.0 d=0.1 to 2.0 e=0.1 to 2.0 x=the number of oxygen atoms required to satisfy the valency requirements of the other elements and b>a+c.

    摘要翻译: 具有以下经验式所示的原子比的催化剂:AaBbCcGedBieMo12Ox其中A =两种或更多种碱金属,In和Tl B = Mg,Mn,Ni,Co,Ca,Fe,Ce,Sm,Cr中的一种或多种 ,Sb和W; 优选B等于Fe和选自Ni和Co中的至少一种元素和从由Mg,Mn,Ca,Ce,Sn,Cr,Sb和WC = 1组成的组中的至少一种元素的组合。 以上的Pb,Eu,B,Sn,Te和Cu a = 0.05〜5.0 b = 5〜12 c = 0〜5.0 d = 0.1〜2.0 e = 0.1〜2.0 x =满足 其他元素的价格要求和b> a + c。