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    PROCESS FOR PRODUCING BENZENE FROM A C5-C12 HYDROCARBON MIXTURE
    7.
    发明公开
    PROCESS FOR PRODUCING BENZENE FROM A C5-C12 HYDROCARBON MIXTURE 审中-公开
    VERFAHREN ZUR HERSTELLUNG冯BENZOL AUS EINEM C5-C12-KOHLENWASSERSTOFFGEMISCH

    公开(公告)号：EP3155072A1

    公开(公告)日：2017-04-19

    申请号：EP15725059.8

    申请日：2015-06-01

    Applicant: SABIC Global Technologies B.V.

    Inventor： FICKEL, Dustin ,  HALL, Stephen ,  PRASHANT, Kumar ,  VAN IERSEL, Maikel ,  FARROKHPANAH, Sonia

    IPC: C10G45/00 ,  C10G45/62 ,  C10G47/18 ,  B01J29/44 ,  C07C15/04

    Abstract: The present invention relates to a process for producing benzene comprising the steps of: a) separating a source feedstream comprising C5-C12 hydrocarbons including benzene and alkylbenzenes into a first feedstream comprising a higher proportion of benzene than the source feedstream and a second feedstream comprising a lower proportion of benzene than the source feedstream and subsequently, b) contacting the first feedstream in the presence of hydrogen with a first hydrocracking catalyst comprising 0.01-1 wt-% hydrogenation metal in relation to the total catalyst weight and a zeolite having a pore size of 5-8 Å and a silica (SiO2) to alumina (Al2O3) molar ratio of 5-200 under first process conditions to produce a first product stream comprising benzene, wherein the first process conditions include a temperature of 425-580° C., a pressure of 300-5000 kPa gauge and a Weight Hourly Space Velocity of 0.1-15 h−1, and c) contacting the second feedstream with hydrogen under second process conditions to produce a second product stream comprising benzene, wherein i) the second process conditions are suitable for hydrocracking and step (c) involves contacting the second feedstream in the presence of hydrogen with a second hydrocracking catalyst comprising 0.01-1 wt-% hydrogenation metal in relation to the total catalyst weight and a zeolite having a pore size of 5-8 Å and a silica (SiO2) to alumina (Al2O3) molar ratio of 5-200 under the second process conditions which include a temperature of 300-600° C., a pressure of 300-5000 kPa gauge and a Weight Hourly space Velocity of 0.1-15 h−1, ii) the second process conditions are suitable for toluene disproportionation and involve contracting the second feedstream with a toluene disproportionation catalyst, or iii) the second process conditions are suitable for hydrodealkylation.

    Abstract translation: 本发明涉及一种生产苯的方法，包括以下步骤：a）将包含C 5 -C 12烃（包括苯和烷基苯）的源原料流分离成包含比源原料流更高比例的苯的第一进料流，以及包含 苯的比例低于源原料流，随后b）使氢存在下的第一进料流与相对于总催化剂重量的包含0.01-1重量％氢化金属的第一加氢裂化催化剂和具有孔径的沸石 并且在第一工艺条件下，二氧化硅（SiO 2）与氧化铝（Al 2 O 3）摩尔比为5-200，以产生包含苯的第一产物流，其中第一工艺条件包括425-580℃的温度 ，压力为300-5000kPa表压，重量每小时空速为0.1-15h-1，和c）使第二进料流与氢在第二过程 以产生包含苯的第二产物流，其中i）第二工艺条件适用于加氢裂化，步骤（c）包括在氢存在下使第二进料流与第二加氢裂化催化剂接触，所述第二加氢裂化催化剂包含0.01-1重量％氢化 相对于总催化剂重量的金属和在第二工艺条件下的孔径为5-8和二氧化硅（SiO 2）与氧化铝（Al 2 O 3）摩尔比为5-200的沸石，其包括温度为300-600 ℃，压力为300-5000kPa表压，重量小时空间速度为0.1-15h-1，ii）第二工艺条件适用于甲苯歧化，并涉及用甲苯歧化催化剂收缩第二进料流，或 iii）第二工艺条件适用于加氢脱烷基化。

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