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    • 1. 发明授权
    • Recovery of coal liquefaction catalysts
    • 煤液化催化剂的回收
    • US4417972A
    • 1983-11-29
    • US318171
    • 1981-11-04
    • James N. FrancisLavanga R. Veluswamy
    • James N. FrancisLavanga R. Veluswamy
    • C10G1/06B01J38/00C10G1/08B01J37/00C10G31/00
    • C10G1/086
    • Metal constituents are recovered from the heavy bottoms produced during the liquefaction of coal and similar carbonaceous solids in the presence of a catalyst containing a metal capable of forming an acidic oxide by burning the heavy bottoms in a combustion zone at a temperature below the fusion temperature of the ash to convert insoluble metal-containing catalyst residues in the bottoms into soluble metal-containing oxides; contacting the oxidized solids formed in the combustion zone with an aqueous solution of a basic alkali metal salt to extract the soluble metal-containing oxides in the form of soluble alkali metal salts of the metal-containing oxides and recycling the soluble alkali metal salts to the liquefaction zone. In a preferred embodiment of the invention, the bottoms are subjected to partial oxidation, pyrolysis, coking, gasification, extraction or a similar treatment process to recover hydrocarbon liquids and/or gases prior to the burning or combustion step.
    • 在含有能够形成酸性氧化物的金属的催化剂存在下,在煤和类似的碳质固体的液化过程中产生的重的底部物质,在低于熔融温度 将塔底中的不溶性含金属催化剂残余物转化成可溶性含金属氧化物的灰分; 将形成在燃烧区中的氧化固体与碱性碱金属盐水溶液接触,以含金属氧化物的可溶性碱金属盐的形式提取可溶性含金属氧化物,并将可溶性碱金属盐再循环至 液化区 在本发明的优选实施方案中,底部物料经受部分氧化,热解,焦化,气化,萃取或类似的处理过程,以在燃烧或燃烧步骤之前回收烃类液体和/或气体。
    • 4. 发明授权
    • Liquefaction process
    • 液化过程
    • US4485008A
    • 1984-11-27
    • US483076
    • 1983-04-07
    • Peter S. MaaLavanga R. VeluswamyLonnie W. Vernon
    • Peter S. MaaLavanga R. VeluswamyLonnie W. Vernon
    • C10G1/00C10G1/08C10G1/06
    • C10G1/006C10G1/083
    • An improved liquefaction process for solid carbonaceous materials wherein at least a portion of the liquefaction is accomplished in the presence of an added hydrogenation catalyst and a solvent containing at least 1.25 wt % donatable hydrogen and in the presence of partially liquefied, solid carbonaceous material at liquefaction conditions. In a preferred embodiment, the liquefaction is accomplished in a plurality of stages and a solvent containing at least 1.25 wt % donatable hydrogen is used in at least one stage, most preferably in the second stage. The partially liquefied solid carbonaceous material may be taken from the bottoms fraction of the effluent from any of the liquefaction stages.
    • 用于固体碳质材料的改进的液化方法,其中至少一部分液化在添加的氢化催化剂和含有至少1.25重量%可供氢的溶剂的存在下进行,并且在液化的部分液化的固体含碳材料存在下完成 条件。 在优选的实施方案中,液化在多个阶段中完成,并且在至少一个阶段,最优选在第二阶段中使用含有至少1.25wt%可供氢的溶剂。 部分液化的固体碳质材料可以从任何液化阶段的流出物的底部馏分中获取。
    • 6. 发明授权
    • Staged temperature coal conversion process
    • 分段温度煤转化过程
    • US4313816A
    • 1982-02-02
    • US180543
    • 1980-08-25
    • Lavanga R. VeluswamyPeter S. Maa
    • Lavanga R. VeluswamyPeter S. Maa
    • C10G1/00C10G1/06C10G1/08
    • C10G1/06C10G1/006C10G1/08
    • Coal or similar liquefiable carbonaceous solids are converted into lower molecular weight liquids by contacting the feed solids with molecular hydrogen in the absence of externally added hydrocarbon liquids under liquefaction conditions during sequential residence in two or more liquefaction zones arranged in series and operated such that the temperature in each zone increases from the first to the final zone. The effluent from each liquefaction zone is passed to the next succeeding higher temperature zone in the series. No hydrocarbon liquids are added to the first zone in the series and the only liquids present in each succeeding zone of the series are the liquids in the effluent from the preceding zone. Liquid hydrocarbonaceous products are recovered from the effluent withdrawn from the last zone.
    • 煤或类似的可液化碳质固体通过在液化条件下在不存在外部添加的烃液体的情况下将进料固体与分子氢接触而转化为较低分子量的液体,其顺序地停留在两个或更多个串联布置的液化区域中并且操作使得温度 在每个区域从第一个区域增加到最后一个区域。 来自每个液化区的流出物被传递到该系列中的下一个较高温度区域。 在该系列的第一个区域中没有添加碳氢化合物液体,并且在该系列的每个后续区域中存在的唯一液体是来自前一个区域的流出物中的液体。 从最后一个区域排出的废水中回收液态烃类产物。