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    • 62. 发明授权
    • Pump for transporting heat-exchange medium for a multi-tube reactor
    • 用于输送多管反应器的热交换介质的泵
    • US07134848B2
    • 2006-11-14
    • US10479625
    • 2002-06-05
    • Gerhard OlbertTorsten MattkeMatthias KummerThomas RühlFrank Rosowski
    • Gerhard OlbertTorsten MattkeMatthias KummerThomas RühlFrank Rosowski
    • G21C19/04
    • F04D3/00F04D29/406
    • The invention relates to a pump (1) having a pump guide tube (13) for the transport of a heat-exchange medium (6) for a reactor having a bundle of catalyst tubes (2), where the pump (1) has a casing (14) which surrounds the pump guide tube (13), having an aperture (15) in the lower part of the casing (14) via which the heat-exchange medium (6) discharged from the lower region of the reactor by means of the pump (1) flows into the casing (14), flows upward in the region between the inner wall of the casing (14) and the outer wall of the pump guide tube (13), if desired via a heat exchanger (18), flows into the interior of the pump guide tube (13) via an aperture (16) in the upper region of the pump guide tube (13), flows through the pump guide tube (13) from top to bottom and flows via an aperture (17) in the lower region of the pump guide tube (13) into the reactor, into the upper region of the interspace between the catalyst tubes (2).
    • 本发明涉及一种具有泵引导管(13)的泵(1),用于输送用于具有一束催化剂管(2)的反应器的热交换介质(6),其中泵(1)具有 围绕所述泵引导管(13)的壳体(14),在所述壳体(14)的下部具有孔(15),所述热交换介质(6)经由所述开口(15)从所述反应器的下部区域排出, 如果需要,通过热交换器(18)将泵(1)流入壳体(14)中,在壳体(14)的内壁和泵引导管(13)的外壁之间的区域中向上流动 )通过泵引导管(13)的上部区域中的孔(16)流入泵引导管(13)的内部,从上到下流过泵引导管(13),并经由 在泵引导管(13)的下部区域中的孔(17)进入反应器,进入催化剂管(2)之间的间隙的上部区域。
    • 64. 发明授权
    • Process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride
    • 控制气相氧化反应器制备邻苯二甲酸酐的方法
    • US08901320B2
    • 2014-12-02
    • US13085537
    • 2011-04-13
    • Stefan AltwasserJürgen ZühlkeHao ChenCornelia Katharina DobnerFrank Rosowski
    • Stefan AltwasserJürgen ZühlkeHao ChenCornelia Katharina DobnerFrank Rosowski
    • C07D307/89
    • C07D307/89
    • In a process for controlling a gas phase oxidation reactor for preparation of phthalic anhydride, by passing a gas stream which comprises an aromatic hydrocarbon and molecular oxygen through a multitude of reaction tubes arranged in the gas phase oxidation reactor, each of which comprises a bed of at least one catalyst and the temperature of which can be controlled by means of a heat transfer medium, at least one control parameter is measured and correcting interventions for control of the control parameter are determined, the at least one control parameter comprising the phthalic anhydride yield and the correcting parameter used being the temperature of the heat carrier medium. Over at least 90% of the lifetime of the catalyst, the change in the correcting parameter is limited to a maximum of 0.5 K within a period of 30 days. In this way, the cumulated phthalic anhydride yield over the lifetime of the catalyst is maximized.
    • 在控制用于制备邻苯二甲酸酐的气相氧化反应器的方法中,通过将包含芳族烃和分子氧的气流通过布置在气相氧化反应器中的多个反应管通过,每个反应管包括一个床 至少一种催化剂,其温度可以通过传热介质控制,测量至少一个控制参数,并且确定用于控制控制参数的校正干预,所述至少一个控制参数包括邻苯二甲酸酐产率 并且所使用的校正参数是热载体介质的温度。 在催化剂寿命的至少90%之内,校正参数的变化在30天的时间内被限制为最大0.5K。 以这种方式,在催化剂寿命期间累积的邻苯二甲酸酐产率最大化。