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公开(公告)号：US5183559A
公开(公告)日：1993-02-02
申请号：US759795
申请日：1991-09-13
CPC分类号： B01J29/049 , C10G11/04
摘要： There is provided a catalyst comprising a layered silicate, such as magadiite, containing interspathic polymeric silica which serves to prop open the layers. The catalyst further comprises rare earth cations which are exchanged with other cations in the silicate. It has been discovered that this rare earth cation exchange imparts enhanced hydrothermal stability to the catalyst. There is also provided a method for making this catalyst and a process for using this catalyst for cracking hydrocarbons. In the cracking process, the catalyst is regenerated.
摘要翻译： 提供了一种催化剂，其包含层状硅酸盐，例如马来甘石，其包含用于支撑开放层的层间聚合物二氧化硅。 催化剂还包含与硅酸盐中的其它阳离子交换的稀土阳离子。 已经发现，这种稀土阳离子交换对催化剂赋予增强的水热稳定性。 还提供了制备该催化剂的方法和使用该催化剂来裂解烃的方法。 在裂化过程中，催化剂被再生。
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公开(公告)号：US4884531A
公开(公告)日：1989-12-05
申请号：US213855
申请日：1988-06-30
摘要： A method is provided of operating an internal combustion engine comprising subjecting a hydrocarbon fuel of relatively low octane number to in situ reforming at elevated temperatures by passing it through a reaction zone containing a substantially non-acid catalyst comprising a Group VIII hydrogenation/dehydrogenation metallic element, e.g., platinum, and an intermediate pore zeolite, e.g., having an X-ray diffraction pattern similar to that of an acidic zeolite which has a Constraint Index in the approximate range of about 1 to 12, such that the fuel leaving said reaction zone has an increased octane number, and passing the fuel to the combustion chamber of said engine.
摘要翻译： 提供了一种操作内燃机的方法，该内燃机包括使相对低辛烷值的烃燃料在升高的温度下进行原位重整，使其通过含有基本上非酸性催化剂的反应区，该催化剂包含第VIII族氢化/脱氢金属元素 例如铂和中间孔沸石，例如具有类似于具有大约1至12约的约束指数的酸性沸石的X射线衍射图，使得离开所述反应区的燃料 具有增加的辛烷值，并将燃料通过所述发动机的燃烧室。
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公开(公告)号：US4853104A
公开(公告)日：1989-08-01
申请号：US183866
申请日：1988-04-20
IPC分类号： C10G69/04
CPC分类号： C10G69/04
摘要： Disclosed are methods for upgrading lube oil base stocks comprising the steps of hydrocracking such materials, preferably under relatively moderate conditions, and subsequently separating the hydrocracked materials to produce in an aromatic rich extract stream and an aromatics lean raffinate stream. The separation step is preferably achieved by solvent extraction of at least a portion of the hydrocracked material. The stream comprising the aromatic rich extract is then catalytically cracked under fluidized conditions to produce gasoline and other distillates. The aromatics lean raffinate stream is further processed by dewaxing and/or the like to produce relatively high volume metric yields of low viscosity lube oil having improved viscosity-temperature characteristics.
摘要翻译： 公开了用于升级润滑油基础油料的方法，包括以下步骤：优选在相对温和的条件下加氢裂化这些物质，随后将加氢裂化的物质分离出来，生成富含芳烃的提取物料流和芳香族贫残余物流。 分离步骤优选通过溶剂萃取至少一部分加氢裂化材料来实现。 然后将包含富含芳烃的提取物的物流在流化条件下催化裂化以产生汽油和其它馏出物。 通过脱蜡和/或类似方法进一步处理芳族贫残余物流，以产生具有改进的粘度 - 温度特性的低粘度润滑油的相对高体积公制产率。
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