Regeneration of catalysts for dehydrating alkanes
    1.
    发明授权
    Regeneration of catalysts for dehydrating alkanes 有权
    脱水烷烃催化剂再生

    公开(公告)号:US09181149B2

    公开(公告)日:2015-11-10

    申请号:US12452933

    申请日:2008-07-24

    摘要: The invention relates to a method for dehydrating alkanes, wherein the alkane is guided in a reactor for the dehydrogenation of alkanes via a catalyst, and the process may be carried out adiabatically or non-adiabatically, and the catalyst for dehydration can be regenerated after the reaction phase by means of transferring a gas, wherein said gas is guided via the catalyst after a short rinsing phase using water vapor, and said regeneration gas consists of a gas containing oxygen and of steam, and after regeneration the catalyst is freed of the gas containing oxygen by transferring steam, wherein the duration of the transfer of a gas containing oxygen is significantly reduced as compared to common methods and represents 70% or less of the total regeneration time, and the catalyst has an increased selectivity for forming alkene by means of carrying out the regeneration at a constant activity, and the catalyst is comprised of a metal of the group of platinum metals or group VIB of the periodic table of the elements, which is applied to a carrier in form of a compound or in elementary form, which substantially consists of oxides of the elements of tin, zinc, or aluminum.

    摘要翻译: 本发明涉及一种使烷烃脱水的方法,其中烷烃在反应器中被引导以通过催化剂脱氢烷烃,并且该方法可以绝热或非绝热地进行,并且用于脱水的催化剂可以在 通过转移气体的反应相,其中所述气体在使用水蒸气的短冲洗阶段之后经由催化剂引导,并且所述再生气体由含氧气和蒸汽的气体组成,并且在再生之后,催化剂不含气体 通过转移蒸汽含有氧气,其中与常规方法相比,含氧气体的转移持续时间显着降低,并且占总再生时间的70%或更少,并且催化剂具有增加的形成烯烃的选择性,借助于 以恒定的活性进行再生,并且催化剂由铂金属的金属或者PE的VIB族组成 元素的表面,其被应用于化合物或基本形式的载体,其基本上由锡,锌或铝元素的氧化物组成。

    PROCESS AND APPARATUS FOR DEHYDRATING ALKANES WITH EQUALIZATION OF THE PRODUCT COMPOSITION
    2.
    发明申请
    PROCESS AND APPARATUS FOR DEHYDRATING ALKANES WITH EQUALIZATION OF THE PRODUCT COMPOSITION 审中-公开
    用于使产品组合物均匀化脱盐的方法和装置

    公开(公告)号:US20120197054A1

    公开(公告)日:2012-08-02

    申请号:US13386588

    申请日:2010-07-16

    IPC分类号: C07C5/48

    摘要: A process for the dehydrogenation of alkanes. In several reactors of the adiabatic, allothermal or isothermal type or combinations thereof a gaseous alkane-containing material stream is passed through a catalyst bed in continuous operating mode. The gas stream produced contains an alkene, hydrogen and a non-converted alkane. In order to achieve a constant product composition, at least one of the process parameters of temperature, pressure or steam/hydrocarbon ratio is recorded in the form of measured values at one or several points of at least one of the reactors, where at least one of the process parameters is selectively controlled and influenced such that the composition of the product gas at the outlet of one reactor remains constant throughout the operating period.

    摘要翻译: 烷烃脱氢的方法。 在绝热,异热或等温型或其组合的几个反应器中,使气态含烷烃的物料流以连续操作模式通过催化剂床。 产生的气流含有烯烃,氢气和未转化的烷烃。 为了实现恒定的产物组成,温度,压力或蒸汽/烃比的工艺参数中的至少一个以至少一个反应器的一个或多个点的测量值的形式记录,其中至少一个 的过程参数被选择性地控制和影响,使得在整个操作期间,一个反应器的出口处的产物气体的组成保持不变。

    REGENERATION OF CATALYSTS FOR DEHYDRATING ALKANES
    3.
    发明申请
    REGENERATION OF CATALYSTS FOR DEHYDRATING ALKANES 有权
    用于脱盐的催化剂的再生

    公开(公告)号:US20100234660A1

    公开(公告)日:2010-09-16

    申请号:US12452933

    申请日:2008-07-24

    IPC分类号: C07C5/333

    摘要: The invention relates to a method for dehydrating alkanes, wherein the alkane is guided in a reactor for the dehydrogenation of alkanes via a catalyst, and the process may be carried out adiabatically or non-adiabatically, and the catalyst for dehydration can be regenerated after the reaction phase by means of transferring a gas, wherein said gas is guided via the catalyst after a short rinsing phase using water vapor, and said regeneration gas consists of a gas containing oxygen and of steam, and after regeneration the catalyst is freed of the gas containing oxygen by transferring steam, wherein the duration of the transfer of a gas containing oxygen is significantly reduced as compared to common methods and represents 70% or less of the total regeneration time, and the catalyst has an increased selectivity for forming alkene by means of carrying out the regeneration at a constant activity, and the catalyst is comprised of a metal of the group of platinum metals or group VIB of the periodic table of the elements, which is applied to a carrier in form of a compound or in elementary form, which substantially consists of oxides of the elements of tin, zinc, or aluminum.

    摘要翻译: 本发明涉及一种使烷烃脱水的方法,其中烷烃在反应器中被引导以通过催化剂脱烷烃,并且该方法可以绝热或非绝热地进行,并且用于脱水的催化剂可以在 通过转移气体的反应相,其中所述气体在使用水蒸气的短冲洗阶段之后经由催化剂引导,并且所述再生气体由含氧气和蒸汽的气体组成,并且在再生之后,催化剂不含气体 通过转移蒸汽含有氧气,其中与常规方法相比,含氧气体的转移持续时间显着降低,并且占总再生时间的70%或更少,并且催化剂具有增加的形成烯烃的选择性,借助于 以恒定的活性进行再生,并且催化剂由铂金属的金属或者PE的VIB族组成 元素的表面,其被应用于化合物或基本形式的载体,其基本上由锡,锌或铝元素的氧化物组成。

    Method for catalytically dehydrating hydrocarbons
    6.
    发明申请
    Method for catalytically dehydrating hydrocarbons 有权
    催化脱碳烃的方法

    公开(公告)号:US20060122448A1

    公开(公告)日:2006-06-08

    申请号:US10532843

    申请日:2003-10-28

    IPC分类号: C07C5/333

    摘要: The invention relates to a method for producing unsaturated hydrocarbons. According to said method, in a first step, a hydrocarbon, especially a mixture which contains alkanes, essentially no water, and can contain water vapour, is continuously guided through a first catalyst bed provided with standard dehydration conditions. Liquid water, water vapour and a gas containing oxygen are then added to the reaction mixture obtained in the first step and, in a second step, the reaction mixture obtained is then continuously guided through another catalyst bed for oxidising hydrogen and for further dehydrating hydrocarbons. The first catalyst bed can be heated and the heating in the first step is then preferably regulated in such a way that an essentially isothermic operating mode is created.

    摘要翻译: 本发明涉及一种生产不饱和烃的方法。 根据所述方法,在第一步中,烃,特别是包含烷烃,基本上不含水并且可以含有水蒸汽的混合物被连续引导通过具有标准脱水条件的第一催化剂床。 然后将液态水,水蒸汽和含氧气体加入到第一步骤中获得的反应混合物中,然后在第二步中,将获得的反应混合物连续引导通过另一个催化剂床,用于氧化氢气和进一步脱氢烃。 可以加热第一催化剂床,然后优选地调节第一步中的加热,使得产生基本上等温的操作模式。

    Method for catalytically dehydrating hydrocarbons
    7.
    发明授权
    Method for catalytically dehydrating hydrocarbons 有权
    催化脱碳烃的方法

    公开(公告)号:US07816576B2

    公开(公告)日:2010-10-19

    申请号:US10532843

    申请日:2003-10-28

    IPC分类号: C07C5/333

    摘要: The invention relates to a method for producing unsaturated hydrocarbons. According to said method, in a first step, a hydrocarbon, especially a mixture which contains alkanes, essentially no water, and can contain water vapour, is continuously guided through a first catalyst bed provided with standard dehydration conditions. Liquid water, water vapour and a gas containing oxygen are then added to the reaction mixture obtained in the first step and, in a second step, the reaction mixture obtained is then continuously guided through another catalyst bed for oxidising hydrogen and for further dehydrating hydrocarbons. The first catalyst bed can be heated and the heating in the first step is then preferably regulated in such a way that an essentially isothermic operating mode is created.

    摘要翻译: 本发明涉及一种生产不饱和烃的方法。 根据所述方法,在第一步中,烃,特别是包含烷烃,基本上不含水并且可以含有水蒸汽的混合物被连续引导通过具有标准脱水条件的第一催化剂床。 然后将液态水,水蒸汽和含氧气体加入到第一步骤中获得的反应混合物中,然后在第二步中,将获得的反应混合物连续引导通过另一个催化剂床,用于氧化氢气和进一步脱氢烃。 可以加热第一催化剂床,然后优选地调节第一步中的加热,使得产生基本上等温的操作模式。

    METHOD AND APPARATUS FOR A CONSTANT STEAM GENERATION FROM THE WASTE HEAT OF AN ALKANE DEHYDROGENATION
    8.
    发明申请
    METHOD AND APPARATUS FOR A CONSTANT STEAM GENERATION FROM THE WASTE HEAT OF AN ALKANE DEHYDROGENATION 审中-公开
    来自烷基脱氢酶的废热的恒定蒸汽的方法和装置

    公开(公告)号:US20120060824A1

    公开(公告)日:2012-03-15

    申请号:US13256081

    申请日:2010-03-01

    IPC分类号: F24J1/00

    摘要: The invention relates to a process and a device for an as constant as possible supply of steam flow from an alkane dehydrogenation, the process being carried out by passing a hydrocarbonaceous gas through reaction tubes loadable with a catalyst, and the reaction tubes, which are sealed towards the outside, running through a heating chamber which is heatable by means of burners, and the catalyst being regenerated for the reaction in a cyclic operating mode, in which the reaction is endothermic and the regeneration of the catalyst non-endothermic, and the capacity of the main burners is reduced during the regeneration of the catalyst, in which auxiliary burners, which serve to keep up the production of hot flue gas during the regeneration of the catalyst, are installed at the inlet of the flue gas duct to produce additional hot flue gas which is used for generating an as constant as possible amount of steam from the waste heat of the process.

    摘要翻译: 本发明涉及一种用于从烷烃脱氢中尽可能不间断地供应蒸汽流的方法和装置,该方法是通过使烃类气体通过可用催化剂负载的反应管和将反应管密封的方式进行的 朝向外部,穿过可通过燃烧器加热的加热室,并且催化剂以循环操作模式再生用于反应,其中反应是吸热的,催化剂的再生不是非吸热的,而且容量 在催化剂的再生期间,主燃烧器的再生被还原,其中用于在催化剂再生期间保持热烟道气的产生的辅助燃烧器安装在烟道气管道的入口处以产生额外的热 烟道气用于从过程的废热产生尽可能恒定的蒸汽量。

    METHOD FOR THE COMBINED RESIDUE GASIFICATION OF LIQUID AND SOLID FUELS
    9.
    发明申请
    METHOD FOR THE COMBINED RESIDUE GASIFICATION OF LIQUID AND SOLID FUELS 审中-公开
    液体和固体燃料组合残留气化方法

    公开(公告)号:US20120266539A1

    公开(公告)日:2012-10-25

    申请号:US13496986

    申请日:2010-09-09

    IPC分类号: C10J3/00

    摘要: A process for joint entrained-bed gasification of ash-containing solid fuels and liquid fuels which are fed separately of each other to the coal gasification reactor via several burners, said burners having a concentric firing angle of greater than 0 degree such that soot formation is reduced and the conversion efficiency is increased, and the solid is conveyed to the gasification reactor together with an inert gas, and at least part of the ash-containing solid fuel contains fine coal particles which originate from coal mining and are not suited for fixed-bed gasification, and the liquid ash-containing fuel contains residues from a fixed-bed gasification.

    摘要翻译: 一种用于将含灰分固体燃料和液体燃料联合夹带床气化的方法,其通过多个燃烧器彼此分别供给到煤气化反应器,所述燃烧器具有大于0度的同心触发角,使得烟灰形成为 降低了转化效率,并且将固体与惰性气体一起输送到气化反应器,并且至少部分含灰分的固体燃料含有来自采煤的细煤颗粒,并且不适合固定 - 床气化,含液态含灰燃料含固定床气化残渣。