PROCESSES FOR REDUCING DIENES IN A HIGH PURITY POLYENE STREAM
    55.
    发明申请
    PROCESSES FOR REDUCING DIENES IN A HIGH PURITY POLYENE STREAM 审中-公开
    在高纯度聚烯烃流中减少二氧化碳的方法

    公开(公告)号:US20160332932A1

    公开(公告)日:2016-11-17

    申请号:US14711242

    申请日:2015-05-13

    申请人: UOP LLC

    IPC分类号: C07C7/163 C07C7/167

    摘要: Processes for producing a propylene stream having at least 95% propylene and a reduced level of dienes. A selective hydrogenation zone converts dienes into olefins in a stream having at least C3 and C4 olefins from a feed stream including butene and C4 dienes. The selective hydrogenation zone may be disposed between a demethanizer and a deethanzier or it may be disposed downstream of both the demethanizer and the deethanizer. A C3 splitter and an acetylene conversion zone may be utilized.

    摘要翻译: 用于生产具有至少95%丙烯和降低的二烯含量的丙烯料流的方法。 选择性加氢区将二烯转化为具有至少C3和C4烯烃的物流中的烯烃,该进料流包括丁烯和C4二烯烃。 选择性氢化区可以设置在脱甲烷塔和脱甲烷之间,或者它可以设置在脱甲烷塔和脱乙烷塔的两个下游。 可以使用C3分流器和乙炔转化区。

    Dehydroxylation of crude alcohol streams using a halogen-based catalyst
    56.
    发明授权
    Dehydroxylation of crude alcohol streams using a halogen-based catalyst 有权
    使用卤素基催化剂对粗醇流进行脱羟基化

    公开(公告)号:US09487455B2

    公开(公告)日:2016-11-08

    申请号:US14364710

    申请日:2012-12-05

    IPC分类号: C07C1/22 C07C1/26 C07C1/24

    摘要: Crude alcohol streams are converted to olefins under reductive or non-reductive dehydroxylation conditions, in the presence of a halogen-based catalyst. The process includes autogenous gas pressure or a gas pressure from 1 psig (˜6.89 KPa) to 2000 psig (˜13.79 MPa), a temperature from 50° C. to 250° C., a liquid reaction medium, and a molar ratio of alcohol to halogen from 1:10 to 100:1.

    摘要翻译: 在卤素类催化剂存在下,将粗醇流转化为还原还原还原还原脱羟基化条件下的烯烃。 该方法包括自生气体压力或气压从1psig(〜6.89KPa)至2000psig(〜13.79MPa),温度为50℃至250℃,液体反应介质和摩尔比 酒精至1:10至100:1的卤素。

    METHOD FOR PREPARING A LIGHT OLEFIN WITH AN OXYGEN-CONTAINING COMPOUND
    60.
    发明申请
    METHOD FOR PREPARING A LIGHT OLEFIN WITH AN OXYGEN-CONTAINING COMPOUND 有权
    含有含氧化合物的轻质烯烃的制备方法

    公开(公告)号:US20160304413A1

    公开(公告)日:2016-10-20

    申请号:US15101297

    申请日:2013-12-03

    摘要: A method for improving the light olefin yield in the process of preparation of a light olefin using an oxygen-containing compound, more specifically, in which, a multi-stage dense phase fluidized bed comprising k secondary pre-carbon deposition zones (k≧1) and n secondary reaction zones (n≧1) is used as a reactor, and a multi-stage dense phase fluidized bed regenerator comprising in secondary regeneration zones (m≧2) is used as a main equipment, and by re-refining hydrocarbons with four or more carbons obtained in the separation section, or adding naphtha, gasoline, condensate oil, light diesel oil, hydrogenation tail oil or kerosene in the reaction zone, the method primarily solves the problems in the prior art of the uniformity of carbon deposition amount and the carbon content of the catalyst being difficult to control, and the light olefin yield being low.

    摘要翻译: 一种在使用含氧化合物制备轻质烯烃的方法中提高轻烯烃产率的方法,更具体地说,其中包括k级第二预碳沉积区(k≥1)的多阶段致密相流化床 )和n个次级反应区(n≥1)用作反应器,并且将包含在次级再生区(m≥2)中的多级密相流化床再生器用作主要设备,并且通过重新精炼碳氢化合物 在分离段中获得四个或更多个碳,或在反应区中加入石脑油,汽油,冷凝油,轻质柴油,氢化尾油或煤油,该方法主要解决了现有技术中碳沉积均匀性的问题 量和催化剂的碳含量难以控制,轻烯烃产率低。