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1.发明授权公开(公告)号：US06413414B1
公开(公告)日：2002-07-02
申请号：US09565676
申请日：2000-05-04
IPC分类号： C10G7302
CPC分类号： C10G31/06 , C10G7/003 , C10G2400/10
摘要： Methods and apparatus to separate a light lube stock product and a heavy lube stock product from heavy dewaxed lube oils are described which maintain product specifications while utilizing conventional refinery equipment. The heavy dewaxed lube oil stream is first heated, such as in a spiral heat exchanger in the top of a vacuum stripper, with the heavy lube stock fraction, and/or with hot oil. Next, the heated heavy dewaxed lube oil stream is injected into the vacuum stripper, and fuel gas is injected at the bottom of the stripper as the stripping medium. A light lube stock fraction is removed from the upper portion of the stripper, and a heavy lube stock fraction is removed from the lower portion thereof. Optionally, the gas stripping medium is removed from the top of the stripper by a vacuum pump and used to fuel a hot oil exchanger to heat the oil which in turn is employed to heat the heavy dewaxed lube oil stream.
摘要翻译： 描述了从重型脱蜡润滑油分离轻润滑油原料和重润滑油原料的方法和设备，其在使用常规炼油设备的同时保持产品规格。 首先将沉重的脱蜡润滑油料流加热，例如在真空汽提器顶部的螺旋式热交换器中，重润滑油原料馏分和/或热油。 接下来，将加热的高浓度脱蜡润滑油料流注入真空汽提器中，并将燃料气体作为汽提介质注入汽提塔底部。 从汽提器的上部除去轻质润滑油原料馏分，从其下部除去重质润滑油原料馏分。 任选地，通过真空泵将气体剥离介质从汽提器的顶部除去，并用于燃料热油交换器以加热油，其又被用于加热重的脱蜡润滑油流。
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公开(公告)号：US4269695A
公开(公告)日：1981-05-26
申请号：US063025
申请日：1979-08-01
IPC分类号： C10M175/00 , C10G45/64 , C10G73/02 , C10G45/00 , C10G45/62
CPC分类号： C10G45/64 , C10G2400/10
摘要： Dewaxed lube base stock oil which forms a wax haze on storage at a temperature above its cloud point is treated by contacting the oil and hydrogen with a zeolite catalyst such as ZSM-5 to eliminate the wax-haze formation. The method may be used to reclaim wax-contaminated lube base stock oils and other wax-contaminated hydrocarbon oils.
摘要翻译： 通过使油和氢与沸石催化剂如ZSM-5接触来处理在高于其浊点的温度下存储时形成蜡雾的脱蜡润滑油基础油，以消除蜡 - 雾状形成。 该方法可用于回收蜡污染的润滑油基础油和其它蜡污染的烃油。
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