PROCESS AND APPARATUS FOR PRODUCING EHTYLENICALLY UNSATURATED HALOGENATED HYDROCARBONS
    1.
    发明申请
    PROCESS AND APPARATUS FOR PRODUCING EHTYLENICALLY UNSATURATED HALOGENATED HYDROCARBONS 审中-公开
    用于生产非饱和不饱和烃基烃的方法和装置

    公开(公告)号:US20110230684A1

    公开(公告)日:2011-09-22

    申请号:US12998174

    申请日:2009-09-03

    摘要: The invention relates to a process and an apparatus for product-conserving thermal dissociation of halogenated aliphatic hydrocarbons, preferably for thermal dissociation of 1,2-dichloroethane to vinyl chloride. This uses chemical dissociation promoters and/or physical measures which initiate the dissociation reaction. The initiation of the dissociation reaction, with the same conversion, lowers the temperature level in the reaction mixture and the temperature of the dissociation gas on exit from the dissociation furnace. The amount and the exit temperature of the flue gas from the radiation zone of the dissociation furnace likewise decrease at the same time. It order to be able to implement the product-conserving mode of operation in the radiation zone of the dissociation furnace and simultaneously to maintain the function of the convection zone, the heat input to the dissociation furnace is divided such that a portion of the heat introduced by underfiring is introduced by burners in the radiation zone, and the other portion of the heat supplied by underfiring is introduced by burners arranged at the exit of the flue gas from the radiation zone.The partial decoupling of the heat input of the radiation zone and of the convection zone makes possible a particularly product-conserving mode of operation.

    摘要翻译: 本发明涉及一种用于产物保存卤代脂族烃的热解离的方法和装置,优选用于1,2-二氯乙烷热解离成氯乙烯。 这使用化学解离启动子和/或引发解离反应的物理措施。 以相同的转化率开始解离反应降低了反应混合物中的温度水平和从解离炉出来的解离气体的温度。 来自离解炉的辐射区域的烟气的量和出口温度同时降低。 为了能够在解离炉的辐射区域中实现产品保存的运行模式,同时保持对流区的功能,将分离炉的热量输入分开,使一部分热量引入 通过燃烧器在辐射区域中引燃,并且由燃烧器供应的热量的另一部分由设置在烟道气出口处的燃烧器从辐射区引入。 辐射区域和对流区域的热输入的部分解耦使得可以实现特别节省产品的操作模式。

    Method of operating a distillation column for purifying 1,2-dichloroethane and for coupled sodium hydroxide solution evaporative concentration
    3.
    发明授权
    Method of operating a distillation column for purifying 1,2-dichloroethane and for coupled sodium hydroxide solution evaporative concentration 有权
    操作用于纯化1,2-二氯乙烷和氢氧化钠溶液蒸发浓缩的蒸馏塔的方法

    公开(公告)号:US08742182B2

    公开(公告)日:2014-06-03

    申请号:US11991699

    申请日:2006-09-07

    IPC分类号: C07C17/00

    摘要: Process for operating a distillation column for the removal of water and lower-boiling components than 1,2-dichloroethane from 1,2-dichloroethane in which at least part of the heat from condensation of the aqueous vapors from the distillation column is used to concentrate caustic soda solution by evaporation; furthermore, at least part of the 1,2-dichloroethane formed when chlorine and ethylene react in a direct chlorination unit is used to heat said distillation column and can subsequently also be used as a heat transfer fluid to concentrate caustic soda solution by evaporation.

    摘要翻译: 用于从1,2-二氯乙烷中除去1,2-二氯乙烷以除去水和低沸点组分的蒸馏塔的方法,其中将来自蒸馏塔的水蒸气的冷凝的至少一部分热量用于浓缩 苛性钠溶液通过蒸发; 此外,当直接氯化单元中氯和乙烯反应时形成的1,2-二氯乙烷的至少一部分用于加热所述蒸馏塔,并且随后也可以用作传热流体以通过蒸发浓缩苛性钠溶液。

    Method For Drying A Humid Polymer Powder And Device Suitable For Said Method
    4.
    发明申请
    Method For Drying A Humid Polymer Powder And Device Suitable For Said Method 有权
    干燥适合所述方法的湿性聚合物粉末和装置的方法

    公开(公告)号:US20140047732A1

    公开(公告)日:2014-02-20

    申请号:US14004210

    申请日:2012-02-23

    IPC分类号: F26B3/02

    摘要: An apparatus (1) and method for drying polymer powders is described. The apparatus has an inlet (2) and an outlet (3) for the polymer powder, heat registers (5) installed in the interior space (4) and lines (7) for a heated gas (6a) for drying the polymer powder. The lines open into the interior space (4) and are connected to heat exchangers (9) for heating gas (6). The heat exchangers (9) are connected to a plant for the preparation of 1,2-dichloroethane (15) and/or for the preparation of vinyl chloride from 1,2-dichloroethane so that thermal energy from the plant can be utilized for heating the gas (6). The method comprises treatment of a polymer powder with a heated gas (6a) in the drying apparatus (1).

    摘要翻译: 描述了用于干燥聚合物粉末的装置(1)和方法。 该装置具有用于聚合物粉末的入口(2)和出口(3),安装在内部空间(4)中的加热器(5)和用于干燥聚合物粉末的加热气体(6a)的管线(7)。 这些线路通向内部空间(4)并且连接到用于加热气体(6)的热交换器(9)。 热交换器(9)连接到用于制备1,2-二氯乙烷(15)和/或从1,2-二氯乙烷制备氯乙烯的设备,使得来自该设备的热能可用于加热 气体(6)。 该方法包括在干燥装置(1)中用加热气体(6a)处理聚合物粉末。

    Process and apparatus for producing ethylenically unsaturated halogenated hydrocarbons
    5.
    发明申请
    Process and apparatus for producing ethylenically unsaturated halogenated hydrocarbons 审中-公开
    烯键式不饱和卤代烃的制备方法和装置

    公开(公告)号:US20110230683A1

    公开(公告)日:2011-09-22

    申请号:US12998172

    申请日:2009-09-03

    摘要: Process and apparatus for producing ethylenically unsaturated halogenated hydrocarbonsThe invention relates to a process and an apparatus for preparing ethylenically unsaturated halogenated hydrocarbons, preferably vinyl chloride by thermal dissociation of 1,2-dichloroethane, using physical or chemical measures which initiate the dissociation reaction.The process/apparatus described makes it possible to increase the amount produced using dissociation reactors of a given size considerably. Use is made here of initiating measures to increase the heat flux through the wall of the reaction tube and at the same time the feed stream and the heating power of the reaction furnace are increased so that the conversion of the reaction is not significantly increased compared to processes without use of initiating measures.To be able to continue to operate the process economically despite the reduction in the reaction temperature, the process parameters have to be set so that at least 50% of the amount of feed used are vaporized by means of the sensible heat content of the reaction mixture leaving the reaction zone.

    摘要翻译: 用于生产烯属不饱和卤代烃的方法和装置本发明涉及使用引发解离反应的物理或化学措施制备烯属不饱和卤代烃,优选氯乙烯通过1,2-二氯乙烷的热解作用的方法和装置。 所描述的方法/装置使得可以显着增加使用给定尺寸的解离反应器产生的量。 在这里使用的措施是增加通过反应管的壁的热通量,同时反应炉的进料流和加热功率增加,使得反应的转化率不会显着增加 过程不使用启动措施。 尽管反应温度降低,为了能够经济地继续操作该方法,必须设定工艺参数,使得所用进料量的至少50%通过反应混合物的显热含量蒸发 离开反应区。

    PROCESS AND APPARATUS FOR PRODUCING ETHYLENICALLY UNSATURATED HALOGENATED HYDROCARBONS
    10.
    发明申请
    PROCESS AND APPARATUS FOR PRODUCING ETHYLENICALLY UNSATURATED HALOGENATED HYDROCARBONS 审中-公开
    生产乙烯不饱和烃基烃的方法和装置

    公开(公告)号:US20110237848A1

    公开(公告)日:2011-09-29

    申请号:US12998173

    申请日:2009-09-03

    IPC分类号: C07C17/00 B01J19/00

    摘要: The invention is directed to a process and to an apparatus for saving fuel in furnaces for thermal dissociation of halogenated aliphatic hydrocarbons, especially of 1,2-dichloroethane, using chemical dissociation promoters or physical measures which initiate the dissociation reaction.The initiation of the dissociation reaction lowers the temperature level in the reaction mixture with the same conversion. This can also lower the mean firing chamber temperature and save fuel.In a preferred process variant, flue gas leaving the convection zone of the dissociation oven is analyzed and its dew point is calculated. The dew point of the flue gas or the conversion of the dissociation reaction serves as command parameter for the intensity of the physical measure for initiation and/or for the amount of the chemical dissociation promoter added and/or for the amount of fuel.In a further preferred process variant, the latent heat content of the flue gas is used to preheat the burner air or other media.

    摘要翻译: 本发明涉及一种方法和装置,用于在使用化学解离促进剂或开始解离反应的物理措施的卤化脂族烃,特别是1,2-二氯乙烷的热解离的炉中节省燃料。 解离反应的开始以相同的转化率降低反应混合物中的温度水平。 这也可以降低平均燃烧室温度并节省燃料。 在优选的方法变体中,分析离开解离炉的对流区域的烟气,并计算其露点。 烟气的露点或解离反应的转化作为起始物理测量强度和/或加入的化学解离促进剂的量和/或燃料量的指标参数。 在另一优选的方法变体中,烟道气的潜热用于预热燃烧器空气或其它介质。