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1. 发明授权

US5393408A Process for the stabilization of lubricating oil base stocks 失效
标题翻译：稳定润滑油基础油的工艺
公开(公告)号：US5393408A
公开(公告)日：1995-02-28
申请号：US877434
申请日：1992-04-30
申请人： James N. Ziemer , John M. Rosenbaum , Kristine L. Eiden
发明人： James N. Ziemer , John M. Rosenbaum , Kristine L. Eiden
IPC分类号： C10G65/04 , C10G65/08 , C10G65/02
CPC分类号： C10G65/04 , C10G2400/10
摘要： A process is disclosed for producing a hydrogenated lubricating oil base stock having improved stability. A lube oil base stock is contacted with hydrogen in a first hydrogenation zone under hydrogenation reaction conditions in the presence of a macroporous hydrogenation catalyst comprised of a particulate refractory inorganic oxide support component and a hydrogenation component. The macroporous hydrogenation catalyst has an acid site density of between about 0.015 and about 0.3 milliequivalents per gram of catalyst, a total pore volume greater than about 0.45 cm.sup.3 /g, and at least 10% of the total pore volume in macropores of diameter is greater than about 1000 Angstroms. A portion of the effluent from the first step is then contacted with hydrogen in a second hydrogenation zone under hydrogenation reaction conditions in the presence of a mesoporous hydrogenation catalyst comprised of a particulate refractory inorganic oxide support component and a hydrogenation component. The catalyst has an acid side density of between about 0.015 and about 0.3 milliequivalents per gram of catalyst, a total pore volume greater than about 0.30 cm.sup.3 /g, and has less that 10% of the total pore volume in macropores of diameter greater than about 1000 Angstroms. A lube oil base stock is then recovered which has improved stability.
摘要翻译：公开了一种制备具有改进的稳定性的氢化润滑油基础油料的方法。在氢化反应条件下，在由难溶性无机氧化物载体组分和氢化组分组成的大孔加氢催化剂存在下，将润滑油基础油料与第一氢化区的氢气接触。大孔加氢催化剂的酸性位点密度在约0.015至约0.3毫当量/克催化剂之间，总孔体积大于约0.45cm 3 / g，并且直径大孔中的总孔体积的至少10％更大超过约1000埃。然后在氢化反应条件下，在含有颗粒状耐火无机氧化物载体组分和氢化组分的介孔氢化催化剂存在下，将第一步骤的一部分流出物与氢气在第二氢化区中接触。催化剂的酸侧密度在约0.015至约0.3毫当量/克催化剂之间，总孔体积大于约0.30cm 3 / g，并且具有小于直径大于约大孔的大孔体积的10％ 1000埃。然后回收润滑油基础油料，其具有改善的稳定性。

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