Method for on-line decoking of flame cracking reactors
    1.
    发明授权
    Method for on-line decoking of flame cracking reactors 失效
    火焰裂解反应器在线除焦方法

    公开(公告)号:US4917787A

    公开(公告)日:1990-04-17

    申请号:US39756

    申请日:1987-04-16

    IPC分类号: C10G9/38

    CPC分类号: C10G9/38 Y10S585/95

    摘要: This invention relates to a method for on-line decoking of flame-cracking reactors whereby decoking is achieved without interruption of the normal operation of such reactors and without the necessity to change feed equipment and/or disassemble reactor components. While maintaining the temperature of the effluent at 1000.degree. C. to 2000.degree. C., the flow of the hydrocarbon feedstock in the reactor is periodically stopped for a time sufficient to reduce the carbon deposits to an acceptable level.

    摘要翻译: 本发明涉及一种火焰裂解反应器的在线除焦方法,其中除焦是在不中断这种反应器的正常运行的情况下进行的,而不需要改变进料设备和/或拆卸反应器部件。 在将流出物的温度保持在1000℃至2000℃的同时,将反应器中的烃原料的流动周期性地停止足以将碳沉积物降低至可接受水平的时间。

    Process for the thermal cracking of hydrocarbons
    2.
    发明授权
    Process for the thermal cracking of hydrocarbons 失效
    石油热裂解工艺

    公开(公告)号:US4136015A

    公开(公告)日:1979-01-23

    申请号:US804227

    申请日:1977-06-07

    IPC分类号: C10G9/36 C10G9/38

    摘要: In a process for the thermal cracking of hydrocarbons by the introduction of liquid petroleum feedstock in atomized form into a stream of hot combustion products formed by the combustion of fuel and oxidant in successive burner and mixing zone, constricting throat zone, a velocity acceleration diffuser zone and secondary cracking and reaction zone along the path of hot combustion product stream flow, an improvement is disclosed which comprises: effecting initial mixing, vaporization and cracking of said atomized liquid petroleum feedstock in said stream of hot combustion products in said burner and mixing zone maintained at subsonic velocity flow; effecting substantially complete mixing and vaporization in said constricting throat zone wherein said stream is maintained, at exit, at sonic velocity flow; passing said stream through a velocity acceleration diffuser zone maintained at supersonic velocity flow; passing said stream through a shock region produced by cross-sectional expansion of a diffuser zone; and effecting a final thermal cracking conversion in said stream in a subsonic velocity additional cracking reaction zone before quenching of said stream.

    Integrated process for the partial oxidation-thermal cracking of crude
oil feedstocks
    3.
    发明授权
    Integrated process for the partial oxidation-thermal cracking of crude oil feedstocks 失效
    原油原料部分氧化 - 热裂解的综合工艺

    公开(公告)号:US4134824A

    公开(公告)日:1979-01-16

    申请号:US804223

    申请日:1977-06-07

    摘要: An integrated partial oxidation-thermal cracking process is disclosed for the more complete utilization of all chemical values in crude oil feedstocks employed in the concurrent production of synthesis gas and an olefin-rich stream comprising the steps of: burning, at a high temperature, streams of fuel and oxygen in the presence of superheated steam to form a reducing stream of hot combustion products; injecting a crude oil distillate fraction stream into said reducing stream of hot combustion products; passing the resulting injected stream to a reaction zone to effect thermal cracking of said crude oil distillate fraction steam and reaction products; thermally quenching said stream; removing pitch and fractionating to provide at least one stream of hydrocarbon oil and an olefin rich gas stream; separating carbon dioxide and any contained hydrogen sulfide from said olefin rich gas stream; separating streams of synthesis gas, methane and ethylene from said olefin rich gas stream; and recycling fractions of said methane stream as fuel to said burning step.

    摘要翻译: 公开了一种集成的部分氧化 - 热裂解方法,用于在同时生产合成气和富烯烃流中使用的原油原料中更全面地利用所有化学值,包括以下步骤:在高温下燃烧流 的燃料和氧气在过热蒸汽的存在下形成热燃烧产物的还原流; 将原油馏出物馏分流注入所述还原气流中的热燃烧产物; 将所得注入的物流送入反应区,以实现所述原油馏出馏分蒸汽和反应产物的热裂解; 热淬火所述流; 去除沥青和分馏以提供至少一种烃油和富烯烃气流; 从所述富烯烃气流中分离二氧化碳和任何含有的硫化氢; 从所述富烯烃气流中分离合成气,甲烷和乙烯流; 并将所述甲烷物流的馏分作为燃料再循环到所述燃烧步骤。