Process for the production of phenyl alkanes operating in a moving bed
    37.
    发明授权
    Process for the production of phenyl alkanes operating in a moving bed 有权
    用于生产在移动床中操作的苯基烷烃的方法

    公开(公告)号:US07541505B2

    公开(公告)日:2009-06-02

    申请号:US11448680

    申请日:2006-06-08

    Abstract: A process for the production of phenyl alkanes by catalytic alkylation on a solid acid catalyst employs at least one moving-bed reactor. This process comprises a catalytic alkylation stage of an aromatic compound by at least one olefin that has 9 to 16 carbon atoms per molecule, combined with a catalyst reactivation circuit. Each reactor contains n reaction zones, whereby each of said zones consists of an acidic solid catalyst, optionally different from one zone to the next. Entering each reaction zone, a fraction of the total amount of olefins necessary to the alkylation reaction is introduced. The phenyl alkanes that are obtained by the process according to the invention are particularly suitable for the production of detergents.

    Abstract translation: 通过催化烷基化在固体酸催化剂上生产苯基烷烃的方法使用至少一个移动床反应器。 该方法包括通过至少一种每分子具有9至16个碳原子的烯烃与催化剂再活化电路组合的芳族化合物的催化烷基化阶段。 每个反应器包含n个反应区,其中每个所述区由酸性固体催化剂组成,任选地从一个区到下一个区不同。 进入每个反应区,引入烷基化反应所需的烯烃总量的一部分。 通过本发明的方法获得的苯基烷烃特别适用于生产洗涤剂。

    Process and apparatus for producing single-walled carbon nanotubes
    38.
    发明授权
    Process and apparatus for producing single-walled carbon nanotubes 有权
    用于生产单壁碳纳米管的方法和设备

    公开(公告)号:US07459138B2

    公开(公告)日:2008-12-02

    申请号:US10976216

    申请日:2004-10-28

    Abstract: A process and apparatus for catalytic production of single walled carbon nanotubes. Catalytic particles are exposed to different process conditions at successive stages wherein the catalytic particles do not come in contact with reactive (catalytic) gases until preferred process conditions have been attained, thereby controlling the quantity and form of carbon nanotubes produced. The reaction gas is preferably provided at a high space velocity to minimize CO2 build-up. The process also contemplates processes and apparatus which recycle and reuse the gases and catalytic particulate materials, thereby maximizing cost efficiency, reducing wastes, reducing the need for additional raw materials, and producing the carbon nanotubes, especially SWNTs, in greater quantities and for lower costs.

    Abstract translation: 用于催化生产单壁碳纳米管的方法和装置。 催化颗粒在连续阶段暴露于不同的工艺条件,其中催化剂颗粒不与反应(催化)气体接触,直到获得优选的工艺条件,从而控制产生的碳纳米管的数量和形式。 优选以高空间速度提供反应气体以最小化CO 2积聚。 该方法还考虑了再循环和再利用气体和催化颗粒材料的方法和设备,从而最大限度地提高成本效率,减少废物,减少对额外原材料的需求,以及大量生产碳纳米管,特别是SWNT,并降低成本 。

    Purge Gas Streams to Stagnant Zones within Oxygenate-to-Olefin Reactor
    39.
    发明申请
    Purge Gas Streams to Stagnant Zones within Oxygenate-to-Olefin Reactor 有权
    将气流吹入含氧烯烃反应器内的停滞区域

    公开(公告)号:US20080207973A1

    公开(公告)日:2008-08-28

    申请号:US12116253

    申请日:2008-05-07

    Abstract: The present invention comprises a process for conversion of oxygenates to olefins comprising contacting within a reactor the oxygenates with a catalyst to produce light olefins and wherein the reactor comprises at least two zones, a first zone wherein gas circulates at a faster rate than a second zone wherein a gas circulates at a slower rate; and inserting a quantity of inert gas into the second zone to increase circulation of any materials located in said second zone. The invention prevents accumulation of undesirable by-products within stagnant zones within the reactor and reduces the amount of coke deposited on catalyst or on surfaces within these zones.

    Abstract translation: 本发明包括将含氧化合物转化为烯烃的方法,包括在反应器内使含氧化合物与催化剂接触以产生轻质烯烃,并且其中反应器包括至少两个区域,第一区域,其中气体以比第二区域更快的速率循环 其中气体以较慢的速率循环; 以及将一定数量的惰性气体插入所述第二区域以增加位于所述第二区域中的任何材料的循环。 本发明防止不期望的副产物在反应器内的停滞区内积聚,并减少沉积在催化剂上或在这些区域内的表面上的焦炭的量。

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