Carbonylation process with integrated heat exchange
    1.
    发明授权
    Carbonylation process with integrated heat exchange 失效
    具有集成热交换的羰基化过程

    公开(公告)号:US6114576A

    公开(公告)日:2000-09-05

    申请号:US215734

    申请日:1998-12-18

    CPC分类号: C07C51/12

    摘要: A process for the production of a carboxylic acid in the presence of solid catalyst particles that uses the exothermic heat of reaction with high efficiency in recovering the carboxylic acid product is disclosed. This process uses indirect heat exchange to transfer the heat of reaction to another stream, without the need for an additional heat transfer fluid such as steam. This invention is especially applicable to the production of acetic acid.

    摘要翻译: 公开了一种在固体催化剂颗粒存在下生产羧酸的方法,该方法使用反应的放热热回收羧酸产物,其效率高。 该方法使用间接热交换将反应热转移到另一种流,而不需要额外的传热流体,例如蒸汽。 本发明特别适用于生产乙酸。

    Mixed-phase hydrocarbon conversion process employing total overhead
condenser
    2.
    发明授权
    Mixed-phase hydrocarbon conversion process employing total overhead condenser 失效
    采用总架空冷凝器的混合烃转化方法

    公开(公告)号:US4540831A

    公开(公告)日:1985-09-10

    申请号:US611459

    申请日:1984-05-17

    申请人: Bruce A. Briggs

    发明人: Bruce A. Briggs

    摘要: A process is disclosed for performing an exothermic reaction such as the etherification of isobutylene with methanol. The feed is charged to a vertical reaction zone containing a solid catalyst. Heat released by the exothermic reaction partially vaporizes the reactants, with the vapors traveling upward to a condensing zone. All of the condensable vapors entering the condensing zone are condensed and returned downward to the catalyst bed. A single effluent stream made up of the product, excess reactants and any unreactive compounds present in the feed streams is removed from the bottom of the reaction zone. This total reflux reaction zone allows temperature control within a catalyst bed without the use of indirect heat exchangers located within the reaction zone.

    摘要翻译: 公开了用于进行放热反应的方法,例如异丁烯与甲醇的醚化反应。 将进料装入含有固体催化剂的垂直反应区。 通过放热反应释放的热部分蒸发反应物,蒸气向上运动到冷凝区。 进入冷凝区的所有可冷凝蒸汽都会冷凝并向下返回催化剂床。 从反应区的底部除去由产物,过量反应物和进料流中存在的任何非反应性化合物组成的单个流出物流。 该总回流反应区允许在催化剂床内进行温度控制,而不使用位于反应区内的间接热交换器。

    Fertilizing apparatus
    4.
    发明授权
    Fertilizing apparatus 失效
    施肥设备

    公开(公告)号:US5212904A

    公开(公告)日:1993-05-25

    申请号:US748854

    申请日:1991-08-23

    CPC分类号: A01G29/00

    摘要: The fertilizing apparatus comprises a diffusion member having a porous member associated with it to retain fertilizer inside a compartment defined by the diffusion member. The diffusion member provides a diffusion pathway that is protected from gravitational water flow and rapid temperature fluctuation. The compartment is filled with fertilizer and inserted into growth media adjacent a plant's root system so that the diffusion pathway is substantially occupied by the plant growth media. A plurality of diffusion members, each member having a different length, may be used to establish diffusion times for specific fertilizer formulations. The fertilizing apparatus can be adapted for use with a closed, insulated pallet system for producing container-grown plants.

    摘要翻译: 施肥装置包括具有与其相关联的多孔构件的扩散构件,以将肥料保持在由扩散构件限定的隔室内。 扩散构件提供了防止重力水流动和快速温度波动的扩散路径。 隔室充满肥料,并插入到植物根系附近的生长培养基中,使得扩散途径基本上被植物生长培养基占据。 可以使用多个扩散构件,每个构件具有不同的长度,以建立特定肥料制剂的扩散时间。 施肥设备可以适用于封闭的绝缘托盘系统,用于生产容器生长的植物。

    Two product process for methyl tertiary butyl ether production
    5.
    发明授权
    Two product process for methyl tertiary butyl ether production 失效
    甲基叔丁基醚生产的两个产品工艺

    公开(公告)号:US4413150A

    公开(公告)日:1983-11-01

    申请号:US332381

    申请日:1981-12-18

    申请人: Bruce A. Briggs

    发明人: Bruce A. Briggs

    IPC分类号: C07C41/06 C07C41/42 C07C41/05

    摘要: A hydrocarbon conversion process which net high purity isobutane feed streams into two product streams containing an ether such as methyl tertiary butyl ether (MTBE) by reaction with methanol or ethanol. The isobutylene, alcohol and a recycle stream containing C.sub.4 hydrocarbons, alcohol and the product ether are passed through an etherification zone. The total etherification zone effluent stream is separated in a single fractionation column. Preferably the new overhead of the fractionation column is divided into the recycle stream and a second portion which is combined with a portion of the bottoms of this column to produce a gasoline grade MTBE product stream. The remainder of the fractionation column bottoms is a second product stream of chemical grade MTBE.

    摘要翻译: 通过与甲醇或乙醇反应,净高纯度异丁烷进料流入含有醚如甲基叔丁基醚(MTBE)的两种产物流的烃转化方法。 异丁烯,醇和含有C4烃,醇和产物醚的再循环料流通过醚化区。 总的醚化区流出物流在单个分馏塔中分离。 优选地,将分馏塔的新塔顶馏分分成循环料流和第二部分,其与塔的塔底部分的一部分组合以产生汽油级MTBE产物流。 剩余的分馏柱底部是化学级MTBE的第二个产物流。