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141 条记录 (耗时 0.024 秒)

    Gas Phase Production of Alkyl Alkanoate
    53.
    发明申请
    Gas Phase Production of Alkyl Alkanoate 有权
    烷基烷酸的气相生产

    公开(公告)号：US20160229788A1

    公开(公告)日：2016-08-11

    申请号：US15022639

    申请日：2014-09-11

    申请人： DOW GLOBAL TECHNOLOGIES LLC

    发明人： David G. Barton ,  Gerolamo Budroni ,  Steven L.F. Corthals

    IPC分类号： C07C67/343 ,  B01J27/045 ,  B01J27/043 ,  C07C67/38

    CPC分类号： C07C67/343 ,  B01J27/043 ,  B01J27/045 ,  C07C67/38 ,  C07C69/24 ,  C07C69/54

    摘要： Alkyl alkanoates, e.g., methyl propionate, are made by a gas phase process comprising the step of contacting under carbonylation conditions an alkene (e.g., ethylene), carbon monoxide, an alkanol (e.g., methanol), and a solid sulfide-based metal catalyst (e.g., iron sulfide). The alkyl alkanoate can be converted in a second step to an alkyl ester of an aliphatic carboxylic acid, e.g., methyl methacrylate, through condensation with an aldehyde, e.g., formaldehyde.

    摘要翻译： 烷基链烷酸酯，例如丙酸甲酯，通过气相法制备，包括在羰基化条件下接触烯烃（例如乙烯），一氧化碳，链烷醇（例如甲醇）和固体硫化物基金属催化剂 （例如硫化铁）。 烷基链烷酸酯可以通过与醛例如甲醛的缩合在第二步中转化成脂肪族羧酸的烷基酯，例如甲基丙烯酸甲酯。

    Hydroconversion multi-metallic catalyst and method for making thereof
    54.
    发明授权
    Hydroconversion multi-metallic catalyst and method for making thereof 有权
    加氢转化多金属催化剂及其制备方法

    公开(公告)号：US09327274B2

    公开(公告)日：2016-05-03

    申请号：US14019319

    申请日：2013-09-05

    申请人： Jinyi Han ,  Alexander E. Kuperman

    发明人： Jinyi Han ,  Alexander E. Kuperman

    IPC分类号： B01J27/051 ,  B01J27/049 ,  B01J27/043 ,  B01J27/047 ,  B01J35/00 ,  B01J35/10

    CPC分类号： B01J27/0515 ,  B01J27/043 ,  B01J27/047 ,  B01J27/049 ,  B01J27/051 ,  B01J35/002 ,  B01J35/1014 ,  B01J35/1038 ,  C10G45/08

    摘要： The invention relates to a self-supported mixed metal sulfide (MMS) catalyst for hydrotreating hydrocarbon feedstock and to a method for preparing the catalyst. The self-supported MMS catalyst contains Ni:W in a mole ratio of 1:3 to 4:1, on a transition metal basis. The self supported MMS catalyst is characterized as having an HYD reaction rate constant of at least 15% higher than that of a catalyst comprising nickel sulfide alone or a catalyst comprising tungsten sulfide alone, when compared on same metal molar basis in hydrotreating of benzene as a feedstock at identical process conditions.

    摘要翻译： 本发明涉及一种用于加氢处理烃原料的自支撑混合金属硫化物（MMS）催化剂及其制备方法。 自支撑的MMS催化剂以过渡金属为基础，含有摩尔比为1:3至4:1的Ni:W。 自支撑的MMS催化剂的特征在于，与单独的硫化镍或仅含硫化钨的催化剂相比，HYD反应速率常数比单独的硫化镍催化剂高至少15％，当与 原料在相同的工艺条件下。

    PHOTOCATALYST FOR THE PRODUCTION OF HYDROGEN
    55.
    发明申请
    PHOTOCATALYST FOR THE PRODUCTION OF HYDROGEN 审中-公开
    用于生产氢的光催化剂

    公开(公告)号：US20140179512A1

    公开(公告)日：2014-06-26

    申请号：US13722411

    申请日：2012-12-20

    申请人： SUNPOWER TECHNOLOGIES LLC

    发明人： Daniel LANDRY

    IPC分类号： B01J27/057

    CPC分类号： B01J27/0573 ,  B01J21/063 ,  B01J21/185 ,  B01J23/06 ,  B01J23/14 ,  B01J23/36 ,  B01J23/66 ,  B01J27/04 ,  B01J27/043 ,  B01J27/0576 ,  B01J35/0013 ,  B01J35/004 ,  B01J37/031 ,  B82Y30/00 ,  B82Y40/00

    摘要： A method and composition for making photocatalytic capped colloidal nanocrystals include semiconductor nanocrystals and inorganic capping agents as photocatalysts. The photocatalytic capped colloidal nanocrystals may be deposited on a substrate and treated to form a photoactive material that may be used in a plurality of photocatalytic energy conversion applications such as water splitting. By combining different semiconductor materials for photocatalytic capped colloidal nanocrystals employed and by changing the semiconductor nanocrystals shapes and sizes, band gaps can be tuned to expand the range of wavelengths of sunlight usable by the photoactive material. The disclosed photocatalytic capped colloidal nanocrystals within the photoactive material may also exhibit a higher efficiency of solar energy conversion process derived from a higher surface area of the semiconductor nanocrystals within photocatalytic capped colloidal nanocrystals available for the absorption of sunlight and enhancement of charge carrier dynamics.

    摘要翻译： 制备光催化封端的胶体纳米晶体的方法和组合物包括半导体纳米晶体和无机封端剂作为光催化剂。 光催化封端的胶态纳米晶体可以沉积在基底上并被处理以形成可用于多个光催化能量转换应用如水分解的光活性材料。 通过组合不同的半导体材料用于所用的光催化封端的胶体纳米晶体，并且通过改变半导体纳米晶体的形状和尺寸，可以调整带隙以扩大光活性材料可用的阳光波长范围。 所公开的光活性材料内的光催化封端的胶体纳米晶体还可以表现出更高的太阳能转化过程的效率，该效率源自可用于吸收阳光的光催化封端的胶体纳米晶体中的半导体纳米晶体的较高表面积，并且增强电荷载流子动力学。