VERFAHREN ZUR HERSTELLUNG VON ACETYLEN UND SYNTHESEGAS

    公开(公告)号:EP2861527A1

    公开(公告)日:2015-04-22

    申请号:EP13728203.4

    申请日:2013-06-13

    申请人: BASF SE

    IPC分类号: C01B3/36 C07C2/78

    摘要: The invention relates to a method for producing acetylene and synthesis gas by partially oxidizing hydrocarbons by means of oxygen. In said method, a first input flow containing one or more hydrocarbons and a second input flow containing oxygen are preheated separately from each other, mixed at a ratio of the mass flow rate of the second input flow to the mass flow rate of the first input flow corresponding to an oxygen number λ less than or equal to 0.31, and fed via a burner block to a combustion chamber. The hydrocarbons are partially oxidized in the combustion chamber. A cracked gas is thereby obtained, which is quenched to 80 to 90 degrees Celsius downstream of the combustion chamber by injecting an aqueous quenching medium. A process water flow I
    liq and a product gas flow I
    g are obtained. The product gas flow is cooled down in a cooling column by means of direct heat exchange with cooling water in order to obtain a process water flow II
    liq as a bottom flow, a product gas flow II
    g as a top flow, and a side flow, which is depleted of soot in an electric filter. A process water flow III
    liq arises in the electric filter. The process water flows I
    liq , II
    liq , and III
    liq are merged and conducted via soot grooves having surface particle separators in order to obtain a merged process water flow IV
    liq . The method is characterized in that the merged process water flow IV
    liq is subjected to cleaning by means of partial evaporation in a single-stage flash tank, the merged process water flow IV
    liq being evaporated to a fraction of 0.01 wt% to 10 wt%, in relation to the total weight thereof, in order to obtain a cleaned process water flow V
    liq , which is recycled into the method.

    摘要翻译: 本发明涉及一种通过用氧气部分氧化烃来生产乙炔和合成气的方法。 在所述方法中,将含有一种或多种烃的第一输入流和含有氧的第二输入流彼此分开预热,以第二输入流的质量流量与第一输入的质量流量的比率 对应于小于或等于0.31的氧数λ的流动,并且经由燃烧器块供给到燃烧室。 烃在燃烧室中被部分氧化。 由此获得裂化气体,其通过注入含水淬火介质而在燃烧室的下游淬火至80至90摄氏度。 获得工艺水流I liq和产品气流I g。 产品气流在冷却塔中通过与冷却水的直接热交换而冷却,以获得作为底流的工艺水流II liq,作为顶流的产品气流II g和侧流 ,这是电除尘器中烟灰的消耗。 在电过滤器中产生工艺水流III liq。 工艺水流I liq,II liq和III liq通过具有表面颗粒分离器的烟灰槽合并并传导,以获得合并的工艺水流IV liq。 该方法的特征在于合并的工艺水流IV liq在单级闪蒸罐中通过部分蒸发进行清洁,合并的工艺水流IV liq被蒸发至0.01重量%至10重量%的分数, ,相对于其总重量,以获得再循环到该方法中的清洁的工艺水流V liq。

    VERFAHREN ZUR HERSTELLUNG VON ACETYLEN UND SYNTHESEGAS

    公开(公告)号:EP2945904A1

    公开(公告)日:2015-11-25

    申请号:EP14701497.1

    申请日:2014-01-15

    申请人: BASF SE

    IPC分类号: C01B3/36 C07C2/78 C07C11/24

    摘要: The invention relates to a continuous method for producing acetylenes and syngas by partially oxidizing hydrocarbons with oxygen. A first feed stream (1) containing one or more hydrocarbons and a second feed stream (2) containing oxygen are - mixed in a ratio of the mass flows of the second feed stream (2) to the first feed stream (1) corresponding to an oxygen number of less than or equal to 0.31, said streams being heated separately from each other, - and fed to a combustion chamber (FR) via a burner block (BR), the partial oxidation of the hydrocarbons being carried out in said combustion chamber, - thereby obtaining a first cracked gas stream I
    g . The invention is characterized in that - the first cracked gas stream I
    g is precooled to a temperature ranging from 100 to 1000 °C in a prequench region (H), thereby obtaining a second cracked gas stream II
    g , - 50 to 90% of the solids contained in the second cracked gas stream II
    g are separated therefrom in a solid-gas separating device (A), thereby obtaining a solid stream I
    f and a third cracked gas stream III
    g , - the third cracked gas stream III
    g is cooled to 80 to 90 °C by injecting water in a total quench region (B), thereby obtaining a fourth cracked gas stream IV
    g and a first process water stream I
    liq , - the fourth cracked gas stream IV
    g undergoes a fine separation of solids in one or more scrubbing devices (C, D), thereby obtaining one or more process water streams II
    liq , III
    liq and a product gas stream VI
    g , - the process water streams I
    liq , II
    liq , III
    liq are merged into a combined process water stream IV
    liq , - the combined process water stream
    IV
    liq is partly recirculated, as stream V
    liq , into the total quench region (B) and otherwise undergoes a cleaning process, as stream VI
    liq , by means of a partial evaporation process, thereby obtaining a cleaned process water stream VII
    liq , - which is cooled by a recooling device (F), partially recycled, as stream VIII
    liq , into the method, and otherwise discharged, as stream IX
    liq .

    摘要翻译: 本发明涉及通过用氧部分氧化烃类来生产乙炔和合成气的连续方法。 含有一种或多种烃的第一进料流(1)和含氧的第二进料流(2)以第二进料流(2)与第一进料流(1)的质量流量对应于 氧数小于或等于0.31,所述物流彼此分开加热,并通过燃烧器块(BR)进料到燃烧室(FR),在所述燃烧室中进行烃的部分氧化, 从而获得第一裂化气流Ig。 本发明的特征在于,将第一裂化气流Ig在预加热区(H)中预冷至100-1000℃,从而得到第二裂化气流IIg,含有50-90%的固体 在固体气体分离装置(A)中将第二裂化气体流IIg分离,由此获得固体流If和第三裂化气体流IIIg,将第三裂化气流IIIg冷却至80〜90℃。 通过在总骤冷区域(B)中注入水,从而获得第四裂化气体流IVg和第一工艺水流Iliq,第四裂化气体流IVg经历在一个或多个洗涤装置(C,D)中的固体的精细分离 ),从而获得一个或多个工艺水流IIliq,IIIliq和产物气流VIg,将工艺水流Iliq,IIliq,IIIliq合并到组合工艺水流IVliq中,组合的工艺水流IVliq部分再循环,如 流V (B),并以其它方式通过部分蒸发方法作为流VIliq进行清洁处理,从而获得由再冷却装置(F)冷却的清洁的工艺水流VIIliq,部分 作为流VIIIliq循环,进入方法,否则排放,如流IXliq。