Double Zone Tubular Reactor and Method for Carrying Out Maleic Anhydride Production by N-Butane Oxidation

    公开(公告)号:US20180229201A1

    公开(公告)日:2018-08-16

    申请号:US15891941

    申请日:2018-02-08

    Inventor: Gabor Toth

    Abstract: A tubular reactor that produces maleic anhydride from a gas mixture containing n-butane and oxygen includes a first reaction zone including an inlet for the gas mixture and a second reaction zone including an outlet for a reaction gas mixture, a plurality of tubes extending in an axial direction through the first and second reaction zones, a temperature control system, configured for controlling a reaction temperature in each of the reaction zones independently, includes a heat transfer system for each of the reaction zones configured for controlling the temperature of a liquid coolant flowing through one of the reaction zones, and a circulation pumping system configured for controlling flow conditions of the liquid coolant flowing through the reactor and one of the heat transfer systems, and a preheating arrangement configured for preheating the gas mixture such that the gas mixture enters the first reaction zone at a predefined inlet temperature.

    ETHYLBENZENE DEHYDROGENATION PLANT FOR PRODUCING STYRENE AND RELATIVE PROCESS
    7.
    发明申请
    ETHYLBENZENE DEHYDROGENATION PLANT FOR PRODUCING STYRENE AND RELATIVE PROCESS 有权
    用于生产苯乙烯和相关工艺的乙烯脱氢工厂

    公开(公告)号:US20160264496A1

    公开(公告)日:2016-09-15

    申请号:US15035600

    申请日:2014-11-10

    Abstract: An ethylbenzene dehydrogenation plant for producing styrene which comprises a reaction section in which one or more adiabatic reaction apparatuses are positioned in series, and a steam circuit in which there is at least one first steam heat exchange apparatus; said plant being characterized in that it comprises heating equipment in which there is a heating circuit by means of recirculation of the fumes formed during dehydrogenation processes of ethylbenzene to give styrene, wherein said heating equipment comprises the following apparatuses in fluid communication with each other by means of said heating circuit: one or more ultra-heating apparatuses, one or more combustion devices in which at least one steam diffuser, one burner and at least one mixing apparatus are inserted, one or more ventilation device(s).

    Abstract translation: 一种用于生产苯乙烯的乙苯脱氢装置,其包括其中一个或多个绝热反应装置串联的反应部分和其中存在至少一个第一蒸汽热交换装置的蒸汽回路; 所述设备的特征在于,其包括加热设备,其中通过在乙苯的脱氢过程中形成的烟气再循环以产生加热回路以产生苯乙烯,其中所述加热设备包括通过装置彼此流体连通的以下装置 所述加热电路:一个或多个超加热装置,一个或多个燃烧装置,其中插入有至少一个蒸汽扩散器,一个燃烧器和至少一个混合装置,一个或多个通风装置。

    APPARATUSES AND METHODS FOR COOLING CATALYST
    9.
    发明申请
    APPARATUSES AND METHODS FOR COOLING CATALYST 有权
    用于冷却催化剂的装置和方法

    公开(公告)号:US20160074825A1

    公开(公告)日:2016-03-17

    申请号:US14485563

    申请日:2014-09-12

    Applicant: UOP LLC

    Abstract: Apparatuses and methods for cooling catalyst are provided. In one embodiment, an apparatus for cooling catalyst includes a catalyst cooler vessel having a catalyst inlet for receiving catalyst. The apparatus includes a gas distributor lance positioned in the catalyst cooler vessel and having a gas outlet configured for injecting gas into the catalyst. The apparatus also includes a heat exchange tube positioned in the catalyst cooler vessel and having an outer surface. The heat exchange tube is configured to transfer heat from the catalyst to a heat exchange fluid. The apparatus further includes a hard surfacing material located on the outer surface of the heat exchange tube.

    Abstract translation: 提供了用于冷却催化剂的设备和方法。 在一个实施方案中,用于冷却催化剂的装置包括具有用于接收催化剂的催化剂入口的催化剂冷却器容器。 该装置包括位于催化剂冷却器容器中的气体分配器喷枪,并具有被配置用于将气体注入到催化剂中的气体出口。 该设备还包括位于催化剂冷却器容器中并具有外表面的热交换管。 热交换管构造成将热量从催化剂传递到热交换流体。 该设备还包括位于热交换管的外表面上的硬表面材料。

    Device for producing ethoxylation derivatives
    10.
    发明授权
    Device for producing ethoxylation derivatives 有权
    乙氧基化衍生物的制备装置

    公开(公告)号:US09149783B2

    公开(公告)日:2015-10-06

    申请号:US14164866

    申请日:2014-01-27

    Abstract: A device for producing ethoxylation derivatives includes an assistant circulation loop with lower starting quantity is added on the base of the main circulation loop, and the assistant circulation pump is started first when slight chain initial dose is added with low flow rate of the ethylene oxide and high growth rate of polyreation; when the amount of reactant gets to the starting quantity of the main circulation pump, the main circulation loop is started with high flow rate of ethylene oxide. The two circulation loops cooperate with each other shorten reaction time and high yield in one batch; a pre-reaction cavity with smaller inner diameter than that of the main body of the reactor is extended from the bottom of the main body of the device, so that lower chain initial dose can start the assistant circulation pump, and then start the assistant circulation loop.

    Abstract translation: 用于制备乙氧基化衍生物的装置包括在主循环回路的基底上加入起始量较低的辅助循环回路,并且当轻度链初始剂量加入低环氧乙烷的流速时,首先启动助循环泵, 多重增长率高; 当反应物的量达到主循环泵的起始量时,主循环回路以高的环氧乙烷流速开始。 两个循环回路相互配合,一次缩短反应时间,产率高; 反应器内径小于反应器主体内径的预反应空腔从设备主体的底部延伸出来,从而下链初始剂量可启动辅助循环泵,然后启动辅助循环 循环。

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