Sparger configuration for fluidized bed hydrocarbon partial oxidation reactors
    4.
    发明授权
    Sparger configuration for fluidized bed hydrocarbon partial oxidation reactors 失效
    用于流化床烃部分氧化反应器的分布器配置

    公开(公告)号:US06743400B2

    公开(公告)日:2004-06-01

    申请号:US09813508

    申请日:2001-03-21

    IPC分类号: B32B1902

    摘要: The present invention is directed to a sparger system provided for appropriately feeding reactant streams to fluidized bed reactors of hydrocarbon partial oxidation processes that are retrofitted to selectively recover and recycle unreacted hydrocarbons. As a result of the sparger system, the reactor productivity and selectivity is enhanced while employing only two spargers. Also, the capital cost required for retrofitting existing sparging equipment is minimized, while at the same time, the desired fluidization and catalyst oxidation characteristics are achieved without the formation of flammable mixtures within the sparging system.

    摘要翻译: 本发明涉及一种用于将反应物流适当地供给到烃部分氧化方法的流化床反应器的喷射器系统,其被改装以选择性地回收和再循环未反应的烃。 作为喷射器系统的结果,反应器的生产率和选择性得到提高,同时仅使用两个喷雾器。 此外,将现有喷射设备改造所需的资金成本降到最低,同时,在喷射系统内不形成易燃混合物的同时实现所需的流化和催化剂氧化特性。

    Process for the production of nitriles
    8.
    发明授权
    Process for the production of nitriles 失效
    腈类生产工艺

    公开(公告)号:US4868330A

    公开(公告)日:1989-09-19

    申请号:US216037

    申请日:1988-07-07

    摘要: An improved process is provided for the production of nitriles from hydrocarbons by reaction with an oxygen-containing gas comprising oxygen, air or a gas enriched in oxygen relative to air and ammonia in the presence of a suitable catalyst. In the process, a selective separator provides recycle of a substantial portion of the unreacted hydrocarbon as well as for a controlled amount of a gaseous flame suppressor in the system. The gaseous flame suppressor comprises a substantially unreactive hydrocarbon containing 1 to 5 carbon atoms, carbon dioxide and nitrogen when present in the feed to the ammoxidation reactor. The use of air or oxygen-enriched air in the feed to the ammoxidation reactor is particularly advantageous from an economic view in combination with a pressure swing adsorption unit as the selective separator. The process is characterized by high selectivity to the formation of the product.

    摘要翻译: 提供了一种改进的方法,用于在合适的催化剂存在下,通过与包含氧气,空气或富氧相对于空气和氨气体的含氧气体与含碳气体反应生产腈。 在该方法中,选择性分离器提供大部分未反应烃的再循环以及用于系统中受控量的气态阻燃剂的再循环。 当存在于氨氧化反应器的进料中时,气态阻燃剂包含含有1至5个碳原子的基本上不活泼的烃,二氧化碳和氮。 从作为选择性分离器的变压吸附装置的经济观点出发,使用空气或富氧空气进入氨氧化反应器的进料是特别有利的。 该方法的特征在于对产物形成的高选择性。

    Hydrocarbon alkylation process
    10.
    发明授权
    Hydrocarbon alkylation process 失效
    烃烷基化方法

    公开(公告)号:US5675052A

    公开(公告)日:1997-10-07

    申请号:US528959

    申请日:1995-09-15

    CPC分类号: C07C7/005 C07C9/16

    摘要: A hydrocarbon stream is cracked to produce a hot gaseous stream which is compressed and cooled to condense almost all of the hydrocarbons contained in the stream. A noncondensed stream remaining after the condensation step, comprised predominantly of hydrogen and C.sub.1 to C.sub.3 hydrocarbons, is subjected to pressure swing adsorption or temperature swing adsorption at an adsorption temperature of about 0.degree. to about 250.degree. C. in a bed of adsorbent which selectively adsorbs ethene and propene, thereby adsorbing substantially all of the ethene and propene from the gas stream. The ethene and/or propene is recovered upon bed regeneration. Higher alkenes are separated from alkanes by various methods.

    摘要翻译: 烃流被裂化以产生热气流,其被压缩和冷却以使包含在流中的几乎所有的烃都冷凝。 在主要由氢和C1至C3烃组成的缩合步骤之后残留的非冷凝流在吸附床中在约0至约250℃的吸附温度下进行变压吸附或变温吸附,其选择性 吸附乙烯和丙烯,从而从气流中吸收基本上所有的乙烯和丙烯。 在床再生时回收乙烯和/或丙烯。 高级烯烃通过各种方法与烷烃分离。