INSTALLATION AND PROCESS FOR THE PREPARATION OF HYDROGEN CYANIDE

    公开(公告)号:US20180215626A1

    公开(公告)日:2018-08-02

    申请号:US15938606

    申请日:2018-03-28

    申请人: Arkema France

    摘要: Present invention relates to a process and an installation (100) for the preparation of hydrogen cyanide by the Andrussow process, and more precisely for improving the conditions of mixing the reactant gases before feeding the Andrussow type reactor (60), in order to improve safety, to avoid any risk of explosion and to produce HCN in safe and efficient manner. The installation is configured in such a manner that oxygen is pre-mixed with air with a ratio comprised between 20.95% and 32.5% by volume, preferably between 25% and 30.5% by volume; methane containing gas and ammonia are simultaneously added in the pre-mixture of oxygen-enriched air in such a manner that the volumic ratio of methane to ammonia is comprised between 1.35 and 1.02 depending on the content of oxygen into air; said obtained reactant gases mixture having a temperature comprised between 80° C. and 120° C., preferably between 95° C. and 115° C. for feeding the Andrussow type reactor (60).

    OPERATIONAL CONTROLS FOR INERT GAS BLANKETING FOR ANDRUSSOW PROCESS
    2.
    发明申请
    OPERATIONAL CONTROLS FOR INERT GAS BLANKETING FOR ANDRUSSOW PROCESS 审中-公开
    用于安德鲁斯过程的燃气封闭的操作控制

    公开(公告)号:US20160194211A1

    公开(公告)日:2016-07-07

    申请号:US14741762

    申请日:2013-12-12

    IPC分类号: C01C3/02

    CPC分类号: C01C3/0212 C01C3/022

    摘要: The present invention relates to a system and a process for producing hydrogen cyanide and more particularly, to a process for controlling operational stability of the system and process by blanketing the system with inert gas. More particularly, the present invention relates to the flushing of the system with an inert gas when a crude hydrogen cyanide product exceeds a threshold of oxygen, such as greater than 0.4 vol. % oxygen.

    摘要翻译: 本发明涉及一种用于生产氰化氢的系统和方法,更具体地说,涉及通过用惰性气体覆盖该系统来控制该系统和工艺的操作稳定性的方法。 更具体地说,本发明涉及当粗制氰化氢产物超过氧气阈值(例如大于0.4体积%)时用惰性气体冲洗该系统。 %氧气。

    Method for the Synthesis of Aromatic Hydrocarbons From C1-C4-Alkanes and Utilization of C1-C4-Alkane-Comprising Product Stream
    6.
    发明申请
    Method for the Synthesis of Aromatic Hydrocarbons From C1-C4-Alkanes and Utilization of C1-C4-Alkane-Comprising Product Stream 审中-公开
    从C1-C4烷烃合成芳香烃的方法和使用C1-C4-烷烃的产品流

    公开(公告)号:US20080293980A1

    公开(公告)日:2008-11-27

    申请号:US12091874

    申请日:2006-10-30

    IPC分类号: C07C15/00

    摘要: The present invention relates to a method for producing an aromatic hydrocarbon from a C1-C4-alkane, or a mixture of C1-C4-alkanes, which comprises a) bringing a feedstock stream A which comprises a C1-C4-alkane, or a mixture of C1-C4-alkanes, into contact with a catalyst and reacting a part of the C1-C4-alkane, or a part of the mixture of the C1-C4-alkanes, to form aromatic hydrocarbon(s); b) fractionating the product stream B resulting from step a) into a low-boiler stream C which comprises the majority of the hydrogen and of the unreacted C1-C4-alkane, or of the mixture of C1-C4-alkanes, and a high-boiler stream D, or a plurality of high-boiler streams D′, which stream or streams comprises or comprise the majority of the aromatic hydrocarbon formed; and c) feeding the low-boiler stream C to a further C1-C4-alkane-consuming method, if appropriate the hydrogen present in the low-boiler stream C being separated off in advance.

    摘要翻译: 本发明涉及一种由C 1 -C 4烷烃或C 1 -C 4烷烃的混合物制备芳族烃的方法,该方法包括:a)将包含C 1 -C 4烷烃的原料流A或 使C1-C4烷烃的混合物与催化剂接触并使部分C1-C4-烷烃或C1-C4-烷烃混合物的一部分反应形成芳族烃; b)将由步骤a)得到的产物流B分馏成包含大部分氢气和未反应的C 1 -C 4烷烃或C 1 -C 4烷烃混合物的低沸点料流C和高 - 沸腾物流D或多个高沸点物流D',其流或物流包含或包含形成的大部分芳族烃; 并且c)如果适当,将低沸点物流C进料到另外的C1-C4-烷烃消耗方法中,预先分离出低沸点物流C中存在的氢。

    Hydrogen cyanide process and apparatus therefor
    8.
    发明申请
    Hydrogen cyanide process and apparatus therefor 失效
    氰化氰工艺及其设备

    公开(公告)号:US20020182137A1

    公开(公告)日:2002-12-05

    申请号:US10154922

    申请日:2002-05-28

    IPC分类号: C01C003/02

    摘要: A catalytic process and apparatus therefor for the manufacture of hydrogen cyanide. In the process an oxygen rich oxidant stream and at least one oxidant-free feed steam containing methane and ammonia are separately preheated and rapidly mixed to form a detonable mixed stream at a temperature which is at least 50null C. below the autoignition temperature of the mixed stream. The mixed stream is then conveyed to a catalyst capable of catalysing the formation of hydrogen cyanide at such a velocity that detonation is avoided. The process is more energy efficient and gives rise to an effluent stream containing more hydrogen than the conventional Andrussow process.

    摘要翻译: 用于制造氰化氢的催化方法及其设备。 在该过程中,含氧的氧化剂流和至少一种不含氧化剂的含甲烷和氨的进料蒸汽被分别预热并快速混合,以在低于自燃温度的至少50℃的温度下形成可引爆混合流 混合流。 然后将混合物流以能够催化形成氰化氢的催化剂以避免爆炸的速度被输送。 该方法更节能,并且产生比常规安德鲁斯方法含有更多氢的流出物流。

    Ammonia composition and process therefor and therewith
    9.
    发明申请
    Ammonia composition and process therefor and therewith 有权
    氨的组成及其工艺及其

    公开(公告)号:US20020001558A1

    公开(公告)日:2002-01-03

    申请号:US09855344

    申请日:2001-05-15

    摘要: A composition, a process for producing the composition, and a process for producing a nitrile are disclosed. The composition is substantially anhydrous or free of water and comprises ammonia and an anti-foaming agent. The composition can be produced by contacting substantially anhydrous ammonia with an anti-foaming amount of an anti-foaming agent. The process for producing a nitrile comprises contacting a hydrocarbon with the composition disclosed herein.

    摘要翻译: 公开了一种组合物,该组合物的制造方法和一种腈的制造方法。 该组合物基本上是无水或不含水,并且包含氨和消泡剂。 该组合物可以通过使基本上无水的氨与消泡剂的消泡剂接触来制备。 制备腈的方法包括使烃与本文公开的组合物接触。

    Process for the manufacture of hydrogen cyanide
    10.
    发明授权
    Process for the manufacture of hydrogen cyanide 失效
    氢氰化物的制备方法

    公开(公告)号:US3647388A

    公开(公告)日:1972-03-07

    申请号:US3647388D

    申请日:1970-05-04

    申请人: DU PONT

    IPC分类号: C01C3/02 B01J1/00

    CPC分类号: C01C3/0225 C01C3/0212

    摘要: A process for the manufacture of hydrogen cyanide from a gaseous hydrocarbon of up to six carbon atoms such as methane and ammonia is provided in which the gaseous hydrocarbon and ammonia react in a reaction zone at the flame front of a flame formed by the combustion of hydrogen with oxygen. The preferred process is carried out in a burner having a center conduit for the flow of an oxygen-bearing stream and one or more annular conduits adjacent the center conduit for the cocurrent flow of hydrogen, ammonia and the gaseous hydrocarbon, the conduits ending in a reaction chamber where the gaseous hydrocarbon and ammonia react at the flame front of the hydrogen and oxygen combustion flame.

    摘要翻译: 提供了一种从最多六个碳原子的气态烃如甲烷和氨制造氰化氢的方法,其中气态烃和氨在火焰形成的火焰前沿的反应区中反应 与氧气。 优选的方法在具有用于含氧气流的中心导管和邻近中心导管的一个或多个环形管道的燃烧器中进行,以用于氢,氨和气态碳氢化合物的并流,导管终止于 反应室,其中气态烃和氨在氢气和氧燃烧火焰的火焰前端反应。