Catalytic process for deep oxidative desulfurization of liquid transportation fuels
    2.
    发明授权
    Catalytic process for deep oxidative desulfurization of liquid transportation fuels 有权
    液体运输燃料深层氧化脱硫催化工艺

    公开(公告)号:US08663459B2

    公开(公告)日:2014-03-04

    申请号:US12224821

    申请日:2007-03-05

    IPC分类号: C10G45/00

    摘要: Sulfur-containing compounds, including specifically thiophenic compounds, in a liquid hydrocarbon feedstream are catalytically oxidized by combining the hydrocarbon feedstream with a catalytic reaction mixture that includes a peroxide that is soluble in water or in a polar organic acid, at least one carboxylic acid, and a catalyst that is a transition metal salt selected from the group consisting of (NH4)2WO4, (NH4)6W12O40.H2O, Na2WO4, Li2WO4, K2WO4, MgWO4, (NH4)2MoO4, (NH4)6Mo7O24.4H2O, MnO0 and NaVO3; the mixture is vigorously agitated for a time that is sufficient to oxidize the sulfur-containing compounds to form sulfoxides and sulfones; the reaction mixture is allowed to stand and separate into a lower aqueous layer containing the catalyst and an upper hydrocarbon layer that is recovered and from which the oxidized sulfur compounds are removed, as by solvent extraction, distillation or selective adsorption. The process can be used to reduce the sulfur content of liquid transportation fuels to 10 ppm, or less.

    摘要翻译: 通过将烃进料流与包含可溶于水或极性有机酸的过氧化物,至少一种羧酸的催化反应混合物组合来催化氧化液态烃进料流中的含硫化合物,特别是噻吩化合物, (NH4)2WO4,(NH4)6W12O40.H2O,Na2WO4,Li2WO4,K2WO4,MgWO4,(NH4)2MoO4,(NH4)6Mo7O24.4H2O,MnO0和NaVO3的过渡金属盐的催化剂 ; 将混合物剧烈搅拌足以氧化含硫化合物形成亚砜和砜的时间; 将反应混合物静置并分离成含有催化剂的下层和回收的上层烃层,通过溶剂萃取,蒸馏或选择性吸附除去氧化的硫化合物。 该方法可用于将液体运输燃料的硫含量降低至10ppm或更低。

    Chemical synthesis apparatus having differential pumping means
    3.
    发明授权
    Chemical synthesis apparatus having differential pumping means 失效
    具有差分泵送装置的化学合成装置

    公开(公告)号:US4182742A

    公开(公告)日:1980-01-08

    申请号:US808085

    申请日:1977-06-20

    CPC分类号: C07F15/02 B01J3/006

    摘要: Chemical synthesis apparatus includes a differential pumping device mounted in an evacuable container between an evaporant source providing a first chemical constituent and the reaction region. The differential pumping can be provided by apertured diaphragms or hollow cones, which may be cooled, mounted directly above the source which is thereby maintained at a lower pressure than the reaction region. The source may be an electron beam source or a resistively heated source arranged to direct the evaporant upwards into the reaction region and a second chemical constituent may be introduced into the reaction region. The invention also provides a method of chemical synthesis in which differential pumping is carried out between the reaction region and the source of one of the constituents.

    摘要翻译: 化学合成装置包括安装在可抽出的容器中的提供第一化学成分的蒸发源和反应区之间的差分泵送装置。 差动泵送可以由有孔隔膜或中空锥体提供,其可被冷却,直接安装在源的上方,从而保持在比反应区域更低的压力。 源可以是电子束源或被布置成将蒸发器向上引导到反应区域中的电阻加热源,并且可以将第二化学成分引入反应区域。 本发明还提供了一种化学合成方法,其中在反应区域和其中一种组分的来源之间进行差分泵送。

    Method of opening and filling carbon nanotubes
    6.
    发明授权
    Method of opening and filling carbon nanotubes 失效
    碳纳米管的开孔和填充方法

    公开(公告)号:US6090363A

    公开(公告)日:2000-07-18

    申请号:US809323

    申请日:1997-04-10

    IPC分类号: C01B31/02 D01F9/12 D01F11/12

    摘要: Method of making carbon nanotubes open on at least one end wherein capped nanotubes are treated with an oxidizing acid such as nitric acid. The treatment is effective to open at least 50% of the nanotubes on at least one end.

    摘要翻译: PCT No.PCT / GB95 / 02235 Sec。 371日期1997年04月10日 102(e)日期1997年4月10日PCT提交1995年9月20日PCT公布。 出版物WO96 / 09246 日期:1996年3月28日在使用硝酸等氧化性酸处理封端的纳米管的至少一端制造碳纳米管的方法。 该处理在至少一端打开至少50%的纳米管是有效的。

    Chemical synthesis apparatus and method
    7.
    发明授权
    Chemical synthesis apparatus and method 失效
    化学合成装置及方法

    公开(公告)号:US4182749A

    公开(公告)日:1980-01-08

    申请号:US862514

    申请日:1977-12-20

    IPC分类号: B01J3/00 C07F15/02 B01J1/00

    CPC分类号: C07F15/02 B01J3/006

    摘要: Apparatus for the chemical synthesis of an evaporant and a liquid has a cryogenic pumping device between the evaporant source and the reaction region and a pump causes the liquid to be continuously recirculated until the reaction is completed, the pressure in the evaporation region being maintained substantially lower than that in the reaction region by differential pumping.

    摘要翻译: 用于化学合成蒸发器和液体的设备在蒸发源和反应区域之间具有低温泵送装置,并且泵使液体连续再循环直到反应完成,蒸发区域中的压力维持在较低水平 比在反应区域通过差示泵送。