Distributed injection catalytic partial oxidation process and apparatus for producing synthesis gas
    96.
    发明授权
    Distributed injection catalytic partial oxidation process and apparatus for producing synthesis gas 失效
    分布式注入催化部分氧化工艺和生产合成气的设备

    公开(公告)号:US06267912B1

    公开(公告)日:2001-07-31

    申请号:US08845700

    申请日:1997-04-25

    IPC分类号: C07C102

    摘要: A novel injector/reactor apparatus and an efficient process for the partial oxidation of light hydrocarbon gases, such as methane, to convert such gases to useful synthesis gas for recovery and/or subsequent hydrocarbon synthesis. Sources of a light hydrocarbon gas, such as methane, and oxygen or an oxygen-containing gas are preheated and pressurized and injected through an injector means at high velocity into admixture with each other in the desired relative proportions, at a plurality of mixing nozzles which are open to the catalytic partial oxidation reaction zone and are uniformly-spaced over the face of the injector means, to form a reactant gaseous premix having a pressure drop equal to at least about 3% of the lowest upstream pressure of either of said gases. The gaseous premix is injected in a time period which is less than its autoignition time, preferably less than 9 milliseconds, at a velocity between about 25 to 1000 feet/second, into a catalytic partial oxidation zone so that the gaseous premix reacts in the presence of the fixed catalyst to reduce the amounts of CO2, H2O and heat produced by the partial oxidation reaction, to form a useful syngas which is cooled and recovered.

    摘要翻译: 一种新颖的注射器/反应器装置以及用于部分氧化轻质烃气体(例如甲烷)的有效方法,以将这种气体转化成有用的合成气以用于回收和/或随后的烃合成。 来自诸如甲烷和氧气或含氧气体的轻质烃气体在多个混合喷嘴处被预热和加压并通过喷射器装置以高速度以所需的相对比例彼此混合, 对催化部分氧化反应区开放,并且在喷射器装置的表面上均匀间隔开,形成具有等于任一气体的最低上压压力的至少约3%的压降的反应物气态预混物。 将气体预混物在小于其自燃时间(优选小于9毫秒)的时间内以约25至1000英尺/秒的速度注入到催化部分氧化区中,使得气态预混物在存在下反应 的固定催化剂以减少CO 2,H 2 O的量和由部分氧化反应产生的热量,以形成冷却和回收的有用的合成气。

    Direct hydroformylation of a multi-component synthesis gas containing
carbon monoxide hydrogen ethylene and acetylene-(LAW072)
    97.
    发明授权
    Direct hydroformylation of a multi-component synthesis gas containing carbon monoxide hydrogen ethylene and acetylene-(LAW072) 失效
    含有一氧化碳氢乙烯和乙炔的多组分合成气的直接加氢甲酰化(LAW072)

    公开(公告)号:US5600017A

    公开(公告)日:1997-02-04

    申请号:US563838

    申请日:1995-11-28

    IPC分类号: C07C45/50

    CPC分类号: C07C45/50 Y02P20/582

    摘要: The invention is a process for hydroformylating multicomponent syngas feed streams containing CO, H.sub.2, C.sub.2 to C.sub.5 olefins and mixtures thereof and C.sub.2 to C.sub.5 alkynes and mixtures thereof by contacting the multicomponent syngas feed stream with a solution of an oil soluble rhodium complex catalyst produced by complexing in solution a low valence Rh and an oil soluble triorganophoshorous compound wherein the catalyst has a P/Rh ratio of at least 30, a concentration of Rh in solution from about 1 to about 1000 ppm by weight, a total concentration of coordinatively active P of at least about 0.01 mol/l, and a ratio of [P]/p.sub.co of at least 0.1 mmol/l/kPa, wherein [P] is the total concentration of coordinatively active phosphorous in the solution, and p.sub.co is the partial pressure of CO, to produce the corresponding C.sub.3 to C.sub.6 aldehydes. The process has utility for the hydroformylation of streams that contain olefins and alkynes.

    摘要翻译: 本发明是一种通过使多组分合成气进料流与油溶性铑配合物催化剂溶液接触而将含有CO,H 2,C 2至C 5烯烃及其混合物和C 2 -C 5炔烃及其混合物的多组分合成气原料流加氢甲酰化的方法, 在低价Rh和油溶性三有机磷化合物溶液中络合,其中催化剂的P / Rh比为至少30,溶液中Rh的浓度为约1至约1000重量ppm,配位活性P 至少约0.01mol / l,[P] / pco为至少0.1mmol / l / kPa的比例,其中[P]是溶液中配位活性磷的总浓度,pco是分压 的CO,以产生相应的C3至C6醛。 该方法可用于含有烯烃和炔烃的物流的加氢甲酰化。

    Method for producing an electronically passivated surface on crystalline
silicon using a fluorination treatment and an organic overlayer
    99.
    发明授权
    Method for producing an electronically passivated surface on crystalline silicon using a fluorination treatment and an organic overlayer 失效
    使用氟化处理和有机覆层在晶体硅上制造电子钝化表面的方法

    公开(公告)号:US4608097A

    公开(公告)日:1986-08-26

    申请号:US658357

    申请日:1984-10-05

    摘要: A method is described for producing an electronically passivated stable surface on silicon wafers. The passivation technique consists of first fluorinating the surface of a crystalline silicon wafer under inert atmospheric conditions. Such a treatment may consist of either a vapor phase or liquid phase application of HF at room temperature. The surface fluorinated wafer is then maintained in an inert atmosphere and a thin coating of an organic solid is applied to the wafer which does not disturb the underlying passivated silicon surface. The wafer may then be further processed into a variety of different devices.

    摘要翻译: 描述了一种在硅晶片上制造电子钝化稳定表面的方法。 钝化技术包括首先在惰性大气条件下氟化晶体硅晶片的表面。 这种处理可以由在室温下的气相或液相施加HF组成。 然后将表面氟化晶片保持在惰性气氛中,并且将有机固体的薄涂层施加到不干扰下面的钝化硅表面的晶片上。 然后可以将晶片进一步处理成各种不同的装置。

    Micro fabrication molding process
    100.
    发明授权
    Micro fabrication molding process 失效
    微加工成型工艺

    公开(公告)号:US4381963A

    公开(公告)日:1983-05-03

    申请号:US173533

    申请日:1980-07-30

    IPC分类号: B29C33/38 H05H1/22 B29C1/14

    摘要: Identical half-section shells of microscopic size, such as hemispherical shells from which spherical laser fusion targets can be made are capable of mass production by micro fabrication molding techniques. A body (preferably a hollow glass microsphere which is called a glass microballoon) provides a pattern for the hemispherical shells, and is used to produce an original mold section. One or more master molds are formed from this original mold section by replication. Many identical replica molds are made by casting soluble material onto the master mold and removing them therefrom. The replica molds are coated with one or more layers which will form the hemispherical shell wall. The material coating the flat background around the hemispherical cavity is referred to as the flange and is removed to form free standing shells. In order to remove the flange material, the coated replica molds are overcoated with a soluble material which is etched away to the level of the flange. The remaining soluble material acts as a mask for the shell material when the flange material is etched away. The replica mold and overcoating body remain as a protective mask and are dissolved away to release the identical shell sections. These sections can be assembled to provide closed shells. Overlapping lips can be formed during flange removal so as to facilitate the assembly of the sections into the closed shells.

    摘要翻译: 可以通过微型制造成型技术大量生产具有微小尺寸的相同的半截面壳体,例如可以制造球形激光熔化靶的半球形壳体。 身体(优选为称为玻璃微球的中空玻璃微球)为半球形壳提供图案,并用于制造原始模具部分。 通过复制从该原始模具部分形成一个或多个主模具。 许多相同的复制模具通过将可溶性材料浇铸到母模上并将其从中除去而制成。 复制模具涂覆有一层或多层,其将形成半球形壳壁。 将半球形腔周围的平坦背景涂覆的材料称为凸缘,并被移除以形成独立的壳体。 为了去除凸缘材料,涂覆的复制模具用可蚀刻的材料进行涂覆,该可溶材料被蚀刻到凸缘的水平面上。 当法兰材料被蚀刻掉时,剩余的可溶性材料用作壳材料的掩模。 复制模具和外涂体保留作为保护面罩,并溶解掉以释放相同的外壳部分。 这些部分可以组装以提供封闭的壳。 可以在法兰移除期间形成重叠的唇缘,以便于将部件组装到封闭的壳体中。