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    • 7. 发明授权
    • Wide-cut synthetic isoparaffinic lubricating oils
    • 宽切合成异链烷烃润滑油
    • US06332974B1
    • 2001-12-25
    • US09151967
    • 1998-09-11
    • Robert J. WittenbrinkDaniel F. RyanPaul J. BerlowitzJacob J. Habeeb
    • Robert J. WittenbrinkDaniel F. RyanPaul J. BerlowitzJacob J. Habeeb
    • C10G7100
    • C10G65/043C10G2400/10Y10S208/95
    • A wide-cut lubricant base stock is made by hydroisomerizing and then catalytically dewaxing a waxy Fischer-Tropsch synthesized hydrocarbon fraction feed and comprises the entire dewaxate having an initial boiling point in the 650-75O° F.+ range. Formulated lubricating oils made by admixing the base stock with a commercial automotive additive package meet all specifications, including low temperature properties, for multigrade internal combustion engine crankcase oils. The waxy feed has an initial boiling point in the 650-750° F. range and continuously boils to an end point of at least 1050° F.+. Lower boiling hydrocarbons produced by the process are separated from the base stock by simple flash distillation. The base stock comprises the entire dewaxate having an initial boiling point in the 650-750° F. range.
    • 通过加氢异构化然后催化脱蜡蜡质的费 - 托合成的烃馏分进料形成广泛的润滑剂基础原料,并且包括初始沸点在650-75°F +范围内的整个脱蜡剂。 通过混合基料与商业汽车添加剂包装制成的配方润滑油满足多级内燃机曲轴箱油的所有规格,包括低温性能。 蜡状进料的初始沸点在650-750°F范围内,并连续沸腾至至少1050°F +的终点。 通过简单的快速蒸馏将由该方法产生的低沸点烃与基础油分离。 基料包括具有在650-750°F范围内的初始沸点的全部脱蜡剂。