会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 4. 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。
    • 8. 发明申请
    • PROCESS FOR CONTROLLING A GAS PHASE OXIDATION REACTOR FOR PREPARATION OF PHTHALIC ANHYDRIDE
    • 用于控制气相氧化反应器的方法,用于制备PHALALAL ANHYDRIDE
    • US20110251405A1
    • 2011-10-13
    • 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。