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    PROCESS FOR PREPARATION AND PREFERABLY DISTILLATIVE WORKUP OF DIPHENYLMETHANE DIISOCYANATE (MDI)
    7.
    发明申请
    PROCESS FOR PREPARATION AND PREFERABLY DISTILLATIVE WORKUP OF DIPHENYLMETHANE DIISOCYANATE (MDI) 有权
    二氯甲烷二异氰酸酯（MDI）的制备和优选分离工艺

    公开(公告)号：US20120157709A1

    公开(公告)日：2012-06-21

    申请号：US13393088

    申请日：2010-10-20

    申请人： Christian Schneider ,  Nikolaus Zafred ,  Andreas Heussler ,  Leo Denissen ,  Lucia Koenigsmann

    发明人： Christian Schneider ,  Nikolaus Zafred ,  Andreas Heussler ,  Leo Denissen ,  Lucia Koenigsmann

    IPC分类号： C07C263/10

    CPC分类号： C07C265/14 ,  C07C209/36 ,  C07C211/46

    摘要： What is proposed is a process for preparation and distillative workup of diphenylmethane diisocyanate (MDI), proceeding from a benzene-comprising feedstream, in which, in a catalytic hydrogenation of nitrobenzene to aniline, steam is raised at two different pressure levels, which partly or completely covers the energy demand for the overall process, by using two fluidized bed reactors of identical design, of which a first fluidized bed reactor is operated with an aniline load for which the fluidized bed reactors have been designed and provides steam at a first, lower pressure level, and a second fluidized bed reactor is operated with a load lowered with respect to the first fluidized bed reactor to such an extent that the second fluidized bed reactor affords steam at the higher pressure level.

    摘要翻译： 提出的是二苯基甲烷二异氰酸酯（MDI）的制备和蒸馏处理方法，其由含苯原料流进行，其中在将硝基苯催化氢化成苯胺的过程中，蒸汽以两个不同的压力水平升高， 通过使用相同设计的两个流化床反应器，完全覆盖整个过程的能量需求，其中第一流化床反应器用已经设计流化床反应器的苯胺负载操作，并且在第一，较低 压力水平，第二流化床反应器以相对于第一流化床反应器降低的负载运行至第二流化床反应器在较高压力水平下提供蒸汽的程度。

    Process for preparation and preferably distillative workup of diphenylmethane diisocyanate (MDI)
    8.
    发明授权
    Process for preparation and preferably distillative workup of diphenylmethane diisocyanate (MDI) 有权
    二苯甲烷二异氰酸酯（MDI）的制备方法，优选蒸馏处理方法

    公开(公告)号：US08703997B2

    公开(公告)日：2014-04-22

    申请号：US13393088

    申请日：2010-10-20

    申请人： Christian Schneider ,  Nikolaus Zafred ,  Andreas Heussler ,  Leo Denissen ,  Lucia Koenigsmann

    发明人： Christian Schneider ,  Nikolaus Zafred ,  Andreas Heussler ,  Leo Denissen ,  Lucia Koenigsmann

    IPC分类号： C07C263/00

    CPC分类号： C07C265/14 ,  C07C209/36 ,  C07C211/46

    摘要： What is proposed is a process for preparation and distillative workup of diphenylmethane diisocyanate (MDI), proceeding from a benzene-comprising feedstream, in which, in a catalytic hydrogenation of nitrobenzene to aniline, steam is raised at two different pressure levels, which partly or completely covers the energy demand for the overall process, by using two fluidized bed reactors of identical design, of which a first fluidized bed reactor is operated with an aniline load for which the fluidized bed reactors have been designed and provides steam at a first, lower pressure level, and a second fluidized bed reactor is operated with a load lowered with respect to the first fluidized bed reactor to such an extent that the second fluidized bed reactor affords steam at the higher pressure level.

    摘要翻译： 提出的是二苯基甲烷二异氰酸酯（MDI）的制备和蒸馏处理方法，其由含苯原料流进行，其中在将硝基苯催化氢化成苯胺的过程中，蒸汽以两个不同的压力水平升高， 通过使用相同设计的两个流化床反应器，完全覆盖整个过程的能量需求，其中第一流化床反应器用已经设计流化床反应器的苯胺负载操作，并且在第一，较低 压力水平，第二流化床反应器以相对于第一流化床反应器降低的负载运行至第二流化床反应器在较高压力水平下提供蒸汽的程度。

    Process for preparing benzene from methane
    9.
    发明授权
    Process for preparing benzene from methane 有权
    从甲烷制备苯的方法

    公开(公告)号：US08796496B2

    公开(公告)日：2014-08-05

    申请号：US13393837

    申请日：2010-08-23

    申请人： Christian Schneider ,  Martin Karches ,  Joana Coelho Tsou ,  Sebastian Ahrens ,  Dieter Stuetzer

    发明人： Christian Schneider ,  Martin Karches ,  Joana Coelho Tsou ,  Sebastian Ahrens ,  Dieter Stuetzer

    IPC分类号： C07C2/76 ,  C07C15/02

    CPC分类号： C07C2/76 ,  Y02P20/584 ,  C07C15/02

    摘要： The present invention relates to a process for nonoxidatively dehydroaromatizing a reactant stream comprising C1-C4-aliphatics, comprising the steps of I. feeding reactant stream E into a reaction zone 1, converting reactant stream E under nonoxidative conditions in the presence of a particulate catalyst to a product stream P comprising aromatic hydrocarbons and discharging product stream P from reaction zone 1, II. transferring the catalyst with reduced activity as a result of deposited coke into a reaction zone 2, III. at least partly regenerating the catalyst with supply of a hydrogen-comprising gas stream H in a reaction zone 2, at least some of the coke deposited being converted to methane to form a methane-comprising gas stream M which is fed at least partly to reaction zone 1, IV. discharging the catalyst from reaction zone 2 and V. recycling at least a portion of the discharged catalyst into reaction zone 1, reaction zone 1 and reaction zone 2 being arranged spatially adjacent to one another in the same reactor.

    摘要翻译： 本发明涉及一种使含有C 1 -C 4脂族化合物的反应物流非氧化脱氢芳化的方法，其包括以下步骤：将反应物流E加入到反应区1中，在非氧化条件下在颗粒催化剂存在下转化反应物流E 涉及包含芳族烃并从反应区域1排出产物流P的产物流P。 由于沉积的焦炭进入反应区域2，III而导致活性降低的催化剂。 在反应区2中供应含氢气流H至少部分地再生催化剂，沉积的焦炭中的至少一些转化成甲烷以形成含甲烷的气流M，其至少部分地进料至反应 区1，IV。 从反应区2排出催化剂，并将至少一部分排出的催化剂再循环到反应区1中，反应区1和反应区2在相同的反应器中彼此空间上相邻布置。

    PROCESS FOR PREPARING BENZENE FROM METHANE
    10.
    发明申请
    PROCESS FOR PREPARING BENZENE FROM METHANE 有权
    从甲烷制备苄苯的方法

    公开(公告)号：US20120165585A1

    公开(公告)日：2012-06-28

    申请号：US13393837

    申请日：2010-08-23

    申请人： Christian Schneider ,  Martin Karches ,  Joana Coelho Tsou ,  Sebastian Ahrens ,  Dieter Stuetzer

    发明人： Christian Schneider ,  Martin Karches ,  Joana Coelho Tsou ,  Sebastian Ahrens ,  Dieter Stuetzer

    IPC分类号： C07C2/76

    CPC分类号： C07C2/76 ,  Y02P20/584 ,  C07C15/02

    摘要： The present invention relates to a process for nonoxidatively dehydroaromatizing a reactant stream comprising C1-C4-aliphatics, comprising the steps of I. feeding reactant stream E into a reaction zone 1, converting reactant stream E under nonoxidative conditions in the presence of a particulate catalyst to a product stream P comprising aromatic hydrocarbons and discharging product stream P from reaction zone 1, II. transferring the catalyst with reduced activity as a result of deposited coke into a reaction zone 2, III. at least partly regenerating the catalyst with supply of a hydrogen-comprising gas stream H in a reaction zone 2, at least some of the coke deposited being converted to methane to form a methane-comprising gas stream M which is fed at least partly to reaction zone 1, IV. discharging the catalyst from reaction zone 2 and V. recycling at least a portion of the discharged catalyst into reaction zone 1, reaction zone 1 and reaction zone 2 being arranged spatially adjacent to one another in the same reactor.

    摘要翻译： 本发明涉及一种使含有C 1 -C 4脂族化合物的反应物流非氧化脱氢芳化的方法，其包括以下步骤：将反应物流E加入到反应区1中，在非氧化条件下在颗粒催化剂存在下转化反应物流E 涉及包含芳烃并从反应区1排出产物流P的产物流P。 由于沉积的焦炭导致反应区2，III的转移，催化剂活性降低。 在反应区2中供应含氢气流H至少部分地再生催化剂，沉积的焦炭中的至少一些转化成甲烷以形成含甲烷的气流M，其至少部分地进料至反应 区1，IV。 将催化剂从反应区2排出，并将至少一部分排出的催化剂再循环到反应区1中，反应区1和反应区2在相同的反应器中彼此空间上相邻布置。