会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • PROCESS FOR PRODUCING AROMATIC HYDROCARBON
    • 生产芳香烃的方法
    • WO1996010548A1
    • 1996-04-11
    • PCT/JP1995001059
    • 1995-05-31
    • SANYO PETROCHEMICAL CO., LTD.KIYAMA, KazuyoshiTSUNODA, TakashiKAWASE, Masatsugu
    • SANYO PETROCHEMICAL CO., LTD.
    • C07C15/02
    • C10G69/08C07C2/00C07C2521/04C07C2523/06C07C2529/04C07C2529/06C07C2529/40C10G35/095C10G45/64C10G50/00C10G61/04C07C15/00
    • A process for producing aromatic hydrocarbon by bringing a low-boiling hydrocarbon feedstock containing olefin and/or paraffin into contact with a zeolite catalyst in a fixed-bed adiabatic reactor provided with a fixed catalyst bed containing a zeolite catalyst, characterized by conducting a catalytic cyclization under the following conditions: (1) the zeolite catalyst has an initial catalytic activity of at least 0.2 sec in terms of the initial first-order reaction rate constant of cracking of n-hexane therewith; (2) the temperature of the catalyst bed ranges from 450 to 650 DEG C; (3) the catalyst bed has a temperature distribution along the length thereof from the inlet to the outlet, and the distribution has at least one peak; and (4) the outlet temperature of the catalyst bed is in the range of the inlet temperature +/- 40 DEG C. The process permits aromatic hydrocarbon to be produced in a high yield and the operation to be conducted safely for long while avoiding the reduction in catalyst activity.
    • 一种通过在含有沸石催化剂的固定催化剂床的固定床绝热反应器中引入含有烯烃和/或石蜡的低沸点烃原料与沸石催化剂接触的方法,其特征在于进行催化环化 在以下条件下:(1)沸石催化剂的初始催化活性以其正己烷裂解的初始一级反应速率常数为至少0.2秒-1; (2)催化剂床温度为450〜650℃; (3)催化剂床沿其长度从入口到出口具有温度分布,并且分布具有至少一个峰; 和(4)催化剂床的出口温度在入口温度+/- 40℃的范围内。该方法允许以高产率生产芳烃,并且操作长时间安全地进行,同时避免 催化剂活性降低。
    • 9. 发明申请
    • DEHYDROCYCLIZATION PROCESS WITH DOWNSTREAM DIMETHYLBUTANE REMOVAL
    • 具有下游二甲基黄酮去除的脱氢方法
    • WO00034417A1
    • 2000-06-15
    • PCT/US1998/026134
    • 1998-12-09
    • C10G35/085C10G35/095C10G61/02C10G61/04C10G61/06
    • C10G61/02C10G35/085C10G35/095C10G61/04
    • In the present invention, dimethylbutanes are removed from the raffinate component of the feed to a dehydrocyclization process. Thus, according to a preferred embodiment, a process is provided for producing aromatics by the following steps: (a) contacting fresh paraffins rich feed hydrocarbons, containing 0.1 to 20.0 wt.% dimethylbutanes with a highly selective dehydrocyclization catalyst in a reaction zone, under dehydrocyclization reaction conditions, to convert paraffins to aromatics and obtain an aromatics rich effluent; (b) separating aromatics from the effluent to obtain an aromatics lean raffinate; (c) removing dimethylbutanes from the raffinate to obtain a raffinate of reduced dimethylbutane content; and (d) recycling the raffinate of reduced dimethylbutane content to the reaction zone. Preferably, the dehydrocyclization catalyst used is a nonacidic, monofunctional catalyst. Platinum on L zeolite is a particularly preferred highly selective dehydrocyclization catalyst for use in the process.
    • 在本发明中,将二甲基丁烷从进料的萃余液组分中除去脱氢环化过程。 因此,根据优选的实施方案,提供了通过以下步骤生产芳族化合物的方法:(a)在反应区中将含有0.1至20.0重量%的二甲基丁烷的新鲜富含烯烃的原料烃与高选择性脱氢环化催化剂接触, 脱氢环化反应条件,将石蜡转化为芳烃并获得富含芳烃的流出物; (b)从流出物中分离出芳族化合物以获得芳烃贫残余物; (c)从萃余液中除去二甲基丁烷以获得还原的二甲基丁烷含量的萃余液; 和(d)将还原的二甲基丁烷含量的残液回收到反应区。 优选地,所用的脱氢环化催化剂是非酸性单官能催化剂。 L沸石上的铂是用于该方法的特别优选的高选择性脱氢环化催化剂。