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
    • CONVERSION OF AN ALCOHOLIC OXYGENATE TO PROPYLENE USING MOVING BED TECHNOLOGY AND AN ETHERIFICATION STEP
    • 使用移动床技术和过滤步骤将醇性氧化剂转化为丙烯
    • WO2006036293A1
    • 2006-04-06
    • PCT/US2005/027409
    • 2005-08-01
    • UOP LLCKALNES, Tom N.WEI, Daniel H.GLOVER, Bryan K.
    • KALNES, Tom N.WEI, Daniel H.GLOVER, Bryan K.
    • C07C1/00
    • C07C11/06C07C1/20C07C2529/40C07C2529/85Y02P20/52Y02P20/584
    • The average propylene selectivity per on-stream cycle of an alcoholic oxygenate to propylene (OTP) process using one or more fixed beds of a dual-function oxygenate conversion catalyst is substantially enhanced by the use of a feed pretreatment step involving a catalytic etherification reaction, by switching to moving bed reactor technology in the olefin synthesis portion of the OTP flow scheme in lieu of fixed bed technology and by the selection of a catalyst on-stream cycle time of 300 hours or less. These provisions hold the build-up of coke deposits to a level which does not substantially degrade catalyst activity, oxygenate conversion and propylene selectivity, thereby enabling maintenance of propylene average cycle yield at essentially start-of-cycle levels. The propylene average cycle yield improvement of the present invention over that achieved by the fixed bed system of the prior art is of the order of about 1.5 to 5.5 wt % or more.
    • 通过使用包含催化醚化反应的进料预处理步骤,使用一种或多种双功能含氧化合物转化催化剂的固定床的酒精含氧化合物对丙烯(OTP)方法的每个流动循环的平均丙烯选择性大大提高, 通过在OTP流动方案的烯烃合成部分中切换到移动床反应器技术来代替固定床技术,并且通过选择300小时以下的催化剂流动循环时间。 这些规定使焦炭沉积物的积聚达到不会显着降低催化剂活性,含氧化合物转化率和丙烯选择性的水平,从而能够在基本上循环水平的基础上维持丙烯平均循环产率。 与现有技术的固定床系统相比,本发明的丙烯平均循环产率提高约为1.5〜5.5重量%以上。
    • 6. 发明申请
    • CONVERSION OF OXYGENATE TO PROPYLENE WITH SELECTIVE HYDROGEN TREATMENT OF HEAVY OLEFIN RECYCLE STREAM
    • 氧化锌转化为丙烯用选择性氢处理重组烯烃循环物流
    • WO2006033759A2
    • 2006-03-30
    • PCT/US2005/030075
    • 2005-08-25
    • UOP LLCKALNES, Tom, N.WEI, Daniel, H.GLOVER, Bryan, K.
    • KALNES, Tom, N.WEI, Daniel, H.GLOVER, Bryan, K.
    • C07C1/00
    • C07C11/06C07C1/20C07C2529/40C07C2529/80C07C2529/85Y02P20/52Y02P20/582Y02P20/584
    • The average cycle propylene selectivity of an oxygenate to propylene (OTP) process using one or more fixed or moving beds of a dual-function oxygenate conversion catalyst with recycle of one or more C4+ olefin-rich fractions is substantially enhanced by the use of selective hydrotreating technology on these C4+ olefin-rich recycle streams to substantially eliminate detrimental coke precursors such as dienes and acetylenic hydrocarbons. This hydrotreating step helps hold the build-up of detrimental coke deposits on the catalyst to a level which does not substantially degrade dual-function catalyst activity, oxygenate conversion and propylene selectivity, thereby enabling a substantial improvement in propylene average cycle yield. The propylene average cycle yield improvement enabled by the present invention over the prior art system but without the use of the hydrotreating step on the C4+ olefin-rich recycle stream is of the order of 1.5 to 5.5 wt-% or more.
    • 使用双功能含氧化合物转化催化剂的一个或多个固定床或移动床并回收一种或多种C 4+富含烯烃的馏分的含氧化合物转化为丙烯(OTP)工艺的平均循环丙烯选择性为 通过在这些富含C 4 +烯烃的再循环物流上使用选择性加氢处理技术大大增强,以基本上消除有害的焦炭前体如二烯烃和炔烃。 该加氢处理步骤有助于将催化剂上积聚的有害焦炭沉积物保持在基本上不会降低双功能催化剂活性,含氧化合物转化率和丙烯选择性的水平上,从而使丙烯平均循环收率得到显着改善。 与现有技术系统相比,本发明使丙烯平均循环产率提高,但对富C4 +烯烃的再循环料流不使用加氢处理步骤,其量级为1.5-5.5重量%或更多。