PREMIXER, RADIALLY FIXED BED REACTOR, REACTION SYSTEM FOR OXIDATIVE DEHYDROGENATION
    21.
    发明申请
    PREMIXER, RADIALLY FIXED BED REACTOR, REACTION SYSTEM FOR OXIDATIVE DEHYDROGENATION 有权
    先进的,放射性固定床反应器,氧化脱氢反应系统

    公开(公告)号:US20140221719A1

    公开(公告)日:2014-08-07

    申请号:US14164549

    申请日:2014-01-27

    IPC分类号: C07C5/48

    摘要: The present disclosure provides a premixer for at least two gases, comprising: a tabular body having a closed end and an opposite, open end; a first flow passage for receiving a first gas, the first flow passage axially extending through the closed end into the tabular body in a sealable manner; a conical tube arranged in the tabular body, wherein a small end of the conical tube communicates with the first flow passage, and a large end of the conical tube extends toward the open end with an edge thereof being fixed to an inner wall of the tabular body, thereby defining a sealed distribution chamber between the tabular body and the conical tube; and a second flow passage arranged on a side portion of the tabular body for receiving a second gas, wherein the second flow passage communicates with the distribution chamber, so that the second gas can be introduced into said conical tube via the distribution chamber in a substantially radial manner. The present disclosure further relates to a radially fixed bed reactor comprising the premixer, a reaction system of oxidative dehydrogenation of butene comprising the racially fixed bed reactor, and a corresponding process.

    摘要翻译: 本公开提供了一种用于至少两种气体的预混合器,包括:具有封闭端和相对的开口端的片状体; 用于接收第一气体的第一流动通道,所述第一流动通道以可密封的方式轴向延伸穿过所述封闭端进入所述板状体; 布置在平板状体中的锥形管,其中锥形管的小端与第一流动通道连通,并且锥形管的大端朝向开口端延伸,其边缘固定到板状内壁 从而在平板体和锥形管之间限定密封的分配室; 以及第二流动通道,其布置在所述板状体的侧部以用于接收第二气体,其中所述第二流动通道与所述分配室连通,使得所述第二气体可以经由所述分配室基本上被引入所述锥形管中 径向方式。 本公开还涉及一种径向固定床反应器,其包含预混合器,包含种族固定床反应器的丁烯的氧化脱氢反应系统和相应的方法。

    METHOD FOR PRODUCING ETHYLENE GLYCOL FROM OXALATE THROUGH THE FLUIDIZED BED CATALYTIC REACTION
    23.
    发明申请
    METHOD FOR PRODUCING ETHYLENE GLYCOL FROM OXALATE THROUGH THE FLUIDIZED BED CATALYTIC REACTION 有权
    通过流化床催化反应从氧化铝生产乙烯甘油的方法

    公开(公告)号:US20130331617A1

    公开(公告)日:2013-12-12

    申请号:US14000876

    申请日:2012-02-24

    IPC分类号: C07C29/149

    摘要: A process for producing ethylene glycol includes contacting an oxalate with a fluidized bed catalyst under the following conditions: a reaction temperature of from about 170 to about 270° C., a weight space velocity of oxalate of from about 0.2 to about 7 hours−1, a hydrogen/ester molar ratio of about 20˜200:1, a reaction pressure of from about 1.5 to about 10 MPa, and a reaction temperature difference T of from about 1 to about 15° C. The fluidized bed catalyst includes: a) from about 5 to about 80 parts by weight of copper and the oxide thereof, b) from about 10 to about 90 parts by weight of at least one carrier selected from silica, molecular sieve or alumina, c) from about 0.01 to about 30 parts by weight of bismuth and tungsten metallic elements or the oxides thereof, or cerium and niobium metallic elements or the oxides thereof.

    摘要翻译: 制备乙二醇的方法包括在以下条件下使草酸盐与流化床催化剂接触:反应温度为约170至约270℃,草酸的重量空间速度为约0.2至约7小时-1 氢/酯摩尔比为约20〜200:1,反应压力为约1.5〜10MPa,反应温度差T为约1〜约15℃。流化床催化剂包括: )约5至约80重量份的铜及其氧化物,b)约10至约90重量份的至少一种选自二氧化硅,分子筛或氧化铝的载体,c)约0.01至约30 铋和钨金属元素或其氧化物或铈和铌金属元素或其氧化物的重量份。

    PROCESS FOR PRODUCING CUMENE
    25.
    发明申请
    PROCESS FOR PRODUCING CUMENE 有权
    生产过程的方法

    公开(公告)号:US20130237730A1

    公开(公告)日:2013-09-12

    申请号:US13886000

    申请日:2011-11-15

    IPC分类号: C07C6/06

    摘要: A process of producing isopropyl benzene which solves the problem of high amount of n-propyl benzene according to the prior art. The process separates the polyisopropyl benzene through a suitable rectification into two streams of relatively lighter and heavier components, wherein the content of diisopropylbenzene in the stream of relatively lighter components is controlled to be at least greater than 95 wt %, and the content of tri-isopropyl benzene in the stream of relatively heavier components is controlled to be at least greater than 0.5 wt %. Such a technical solution subjecting the two streams respectively to the transalkylation solves the problem raised from the prior art, and is useful for the industrial production of isopropyl benzene.

    摘要翻译: 根据现有技术的生产异丙基苯的方法,其解决大量正丙基苯的问题。 该方法将聚异丙基苯通过合适的精馏分离成相对较轻和较重组分的两股流,其中相对较轻组分流中二异丙基苯的含量被控制在至少大于95重量% 相对较重组分物流中的异丙苯控制在至少大于0.5wt%。 将这两种流体分别进行烷基转移的这种技术方案解决了现有技术提出的问题,并且可用于工业生产异丙基苯。

    PROCESS OF PRODUCING OXALATE BY CO GAS PHASE METHOD
    26.
    发明申请
    PROCESS OF PRODUCING OXALATE BY CO GAS PHASE METHOD 有权
    通过气相法制备氧化铝的方法

    公开(公告)号:US20130197265A1

    公开(公告)日:2013-08-01

    申请号:US13641457

    申请日:2011-04-13

    IPC分类号: C07C67/18

    摘要: The present invention relates to a process of producing oxalate by CO gas phase method for chiefly solving the technical problem of the low utilization efficiency of nitrogen oxides or nitrous acid esters in the prior art. The present invention solves the problem in a better way by using the following steps including: a gas phase stream V containing NO and methanol and oxygen enter a supergravity rotating bed reactor II and are subjected to the oxidative esterification reaction to produce an effluent VI containing methyl nitrite; a methyl nitrite effluent VII obtained from separating said effluent VI together with a CO gas II enter a coupling reactor II and is contacted with a catalyst II to react to form a dimethyl oxalate effluent VIII and a gas phase effluent IX containing NO; the resultant dimethyl oxalate effluent VIII is separated to obtain a dimethyl oxalate product I; optionally, the gas phase effluent IX containing NO is returned to the step above so as to be mixed with the gas phase stream V containing NO for being recycled. Therefore, the process is applicable to the industrial production of oxalate by CO gas phase method.

    摘要翻译: 本发明涉及一种通过CO气相法生产草酸盐的方法,主要解决现有技术中氮氧化物或亚硝酸酯利用率低的技术问题。 本发明通过使用以下步骤更好地解决了该问题,包括:含有NO和甲醇和氧的气相流V进入超重力旋转床反应器II,并进行氧化酯化反应以产生含有甲基 亚硝酸盐 通过将CO 2气体II与所述流出物VI分离而获得的亚硝酸甲酯流出物VII进入偶联反应器II,并与催化剂II接触以进行反应以形成草酸二乙酯流出物VIII和含有NO的气相流出物IX; 将得到的草酸二甲酯流出物VIII分离得到草酸二甲酯产物I; 任选地,将含有NO的气相流出物IX返回到上述步骤,以与含有NO的气相物流V混合以进行再循环。 因此,该方法适用于CO气相法工业生产草酸盐。

    START-UP METHOD FOR REACTION-REGENERATION UNIT USED TO PREPARE LIGHT OLEFINS FROM METHANOL
    27.
    发明申请
    START-UP METHOD FOR REACTION-REGENERATION UNIT USED TO PREPARE LIGHT OLEFINS FROM METHANOL 有权
    用于从甲醇制备轻质烯烃的反应再生单元的启动方法

    公开(公告)号:US20130178681A1

    公开(公告)日:2013-07-11

    申请号:US13736892

    申请日:2013-01-08

    IPC分类号: B01J8/00

    CPC分类号: B01J8/008 B01J8/1872 B01J8/26

    摘要: The invention provides a start-up method for a reaction-regeneration unit for preparing light olefins from methanol, which comprises: (a) heating a regenerator with an auxiliary combustion chamber and a reactor with a start-up furnace; (b) charging a catalyst into the regenerator and reactor; (c) closing a spent catalyst slide valve and a regenerated catalyst slide valve after the reactor reaches about 350° C. or more; (d) feeding methanol to the reactor after the dense phase stage of the regenerator reaches about 350° C. or more; (e) opening the spent catalyst slide valve and introducing a carbon deposited catalyst from the reactor to the regenerator after the dense phase stage reaches about 400° C. or more and the average amount of carbon deposits on the catalyst in the reactor reaches about 2.5% or more; (f) raising the regenerator to above about 580° C.; and (g) stopping the start-up furnace and auxiliary combustion chamber.

    摘要翻译: 本发明提供了一种用于从甲醇制备轻质烯烃的反应 - 再生单元的启动方法,其包括:(a)用辅助燃烧室加热再生器和具有启动炉的反应器; (b)将催化剂装入再生器和反应器; (c)在反应器达到约350℃或更高之后关闭废催化剂滑阀和再生催化剂滑阀; (d)在再生器的致密相达到约350℃以上之后,将甲醇进料到反应器中; (e)在致密相达到约400℃或更高之后,打开废催化剂滑阀并将碳沉积催化剂从反应器引入再生器,并且反应器中催化剂上的平均碳沉积量达到约2.5 % 或者更多; (f)将再生器升高至约580℃以上; 和(g)停止起动炉和辅助燃烧室。

    Process for producing C1-C4 alkyl nitrite
    28.
    发明授权
    Process for producing C1-C4 alkyl nitrite 有权
    制备C1-C4烷基亚硝酸盐的方法

    公开(公告)号:US08476469B2

    公开(公告)日:2013-07-02

    申请号:US13087285

    申请日:2011-04-14

    IPC分类号: C07C203/00

    CPC分类号: C07C201/04 C07C203/00

    摘要: A process of producing C1-C4 alkyl nitrite, comprising the following steps: a) firstly feeding nitrogen oxide and oxygen into Reactor I, contacting with an aluminosilicate catalyst, and reacting to produce an effluent I containing NO2 and unreacted NO; b) feeding the effluent I and C1-C4 alkanol into Reactor II, and reacting to produce an effluent II containing C1-C4 alkyl nitrite; and c) separating the effluent II containing C1-C4 alkyl nitrite to obtain C1-C4 alkyl nitrite; wherein reactor I is a fixed bed reactor, and Reactor II is a rotating high-gravity reactor; said nitrogen oxide in step a) is NO, or a mixed gas containing NO and one or more of N2O3 and NO2, wherein the molar number of NO is greater than that of NO2, if any; and the molar ratio of NO in nitrogen oxide to oxygen is 4-25:1.

    摘要翻译: 一种生产C1-C4烷基亚硝酸盐的方法,包括以下步骤:a)首先将氮氧化物和氧气加入到反应器I中,与铝硅酸盐催化剂接触,并产生含有NO 2和未反应的NO的流出物I; b)将流出物I和C 1 -C 4烷醇加入到反应器II中,并产生含有亚硝酸C1-C4烷基酯的流出物II; 和c)分离含有C1-C4烷基亚硝酸盐的流出物II,得到亚硝酸C1-C4烷基酯; 其中反应器I是固定床反应器,反应器II是旋转的高重力反应器; 步骤a)中的氮氧化物为NO,或含有NO和一种或多种N 2 O 3和NO 2的混合气体,其中NO的摩尔数大于NO 2的摩尔数(如果有的话)。 氮氧化物中的NO与氧的摩尔比为4-25:1。

    Processes for producing an oxalate by coupling of CO
    30.
    发明授权
    Processes for producing an oxalate by coupling of CO 有权
    通过CO的偶联生产草酸盐的方法

    公开(公告)号:US08269036B2

    公开(公告)日:2012-09-18

    申请号:US12642590

    申请日:2009-12-18

    IPC分类号: C07C67/36

    CPC分类号: C07C67/36 C07C69/36

    摘要: Provided are processes for producing an oxalate by coupling of CO in the presence of a nitrite, wherein two or more reaction zones in series are used, and at least a portion of the oxalate as reaction product is separated between the reaction zones, and/or the nitrite is fed stagewise. The processes described herein can effectively enhance the selectivity to the oxalate and the single-pass conversion of the feedstock.

    摘要翻译: 本发明提供了在亚硝酸盐存在下偶联CO的方法,其中使用两个或更多个串联的反应区,并且至少一部分草酸盐作为反应产物在反应区之间分离,和/或 亚硝酸盐逐步进料。 本文所述的方法可以有效地提高对草酸盐的选择性和原料的单程转化。