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    • 18. 发明申请
    • METHOD FOR SIMULATED MOVING BED TO ADSORB AND SEPARATE POLYCYCLIC AROMATIC HYDROCARBONS
    • 模拟运动床吸附和分离多环芳烃的方法
    • WO2017097271A3
    • 2017-08-03
    • PCT/CN2017073196
    • 2017-02-10
    • CHINA NAT OFFSHORE OIL CORPCNOOC TIANJIN CHEMICAL RES & DESIGN INST CO LTDCNOOC ENERGY TECH & SERV LTD
    • YU HAIBINZANG JIAZHONGLI BINFAN JINGXINSHU CHANGSUI ZHIYUZHAO XUNZHIPAN YUEQIULIU YANCHENG HONGLL JIAN
    • C10G25/08B01D15/02
    • B01D15/02C10G25/08
    • A method for a simulated moving bed to adsorb and separate polycyclic aromatic hydrocarbons. The method uses a molecular sieve, an oxide or a metal modified material as an adsorbent. Diesel undergoes pretreatment for the adsorption and removal of trace impurities, then passes into a simulated moving bed for the adsorption and separation of polycyclic aromatic hydrocarbons in the diesel. Periodic switching of material inlet and outlet valves causes adsorbent bed layers to move in an opposing manner, a desorbent is added, the polycyclic aromatic hydrocarbons are rinsed to implement an adsorption-regeneration continuous operation, a clean diesel component containing the desorbent and a polycyclic aromatic hydrocarbon component are obtained, the difference between the boiling points of the desorbent and the diesel component is large, the desorbent may be separated, recovered and recycled via distillation towers, and the clean diesel component and the polycyclic aromatic hydrocarbon component are obtained. The adsorption process of the method has the features of a low operating temperature, a low pressure, a continuous operation and low adsorbent loss, the adsorption process has a high removal capability with regard to polycyclic aromatic hydrocarbons in diesel, and the polycyclic aromatic hydrocarbon removal rate may reach 90%.
    • 模拟移动床吸附和分离多环芳烃的方法。 该方法使用分子筛,氧化物或金属改性材料作为吸附剂。 柴油经过预处理,吸附除去微量杂质,然后进入模拟移动床,吸附和分离柴油中的多环芳烃。 定期切换物料入口和出口阀使吸附剂床层以相反的方式移动,加入解吸剂,漂洗多环芳烃以实施吸附 - 再生连续操作,清洁柴油组分含有解吸剂和多环芳香族化合物 烃组分,解吸剂与柴油组分的沸点差较大,解吸剂可通过蒸馏塔分离回收再循环,得到清洁柴油组分和多环芳烃组分。 该方法的吸附过程具有操作温度低,压力低,连续操作和低吸附剂损失的特点,该吸附过程对柴油中的多环芳烃具有高的去除能力,并且多环芳烃去除 费率可能达到90%。
    • 20. 发明申请
    • PROCESS FOR DESULFURIZING GASOLINE AND HYDROCARBON FEEDSTOCKS
    • 石油和油料进料的脱硫方法
    • WO1997007054A1
    • 1997-02-27
    • PCT/US1996013118
    • 1996-08-14
    • THE PRITCHARD CORPORATION
    • THE PRITCHARD CORPORATIONIRVINE, Robert, L.
    • C01B17/00
    • C10G25/08
    • An apparatus (10) and method for treating a liquid hydrocarbon stream useful as a precursor for transportation fuel and which contains an unacceptably high level of heteroatom compounds is provided for the removal of a significant portion of the heteroatom compounds from the hydrocarbon stream. The method and apparatus (10) employ an adsorbent which is brought into countercurrent contact with a hydrocarbon stream in an adsorption zone (12) to form a product hydrocarbon stream and a spent adsorbent stream. The adsorbent is recirculated to a desorption zone (14) and is thereafter brought into cross-current contact with a reactivating medium, such as hydrocarbon gas, at elevated temperatures to form a reactivated adsorbent stream and a hydrogen/heteroatom stream. The regenerated adsorbent is recirculated back to the adsorption zone (12) to form the adsorbent stream.
    • 提供了一种用于处理用作运输燃料的前体并且含有不可接受的高含量杂原子化合物的液体烃流的装置(10)和方法,用于从烃流中除去大部分杂原子化合物。 方法和装置(10)使用与吸附区(12)中的烃流逆流接触以形成产物烃流和废吸附剂流的吸附剂。 吸附剂再循环到解吸区(14),然后在升高的温度下与再生活化介质如烃气体交叉电流接触以形成再活化的吸附剂流和氢/杂原子流。 再生的吸附剂再循环回吸附区(12)以形成吸附剂流。