METHODS FOR FRACTIONATION OF LUBRICANT FEEDS
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United States of America Patent
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Mar 8, 2017
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Mar 31, 2016
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Abstract
Systems and methods are provided for the fractionation of lubricant feeds. A lubricant feed can be introduced into a vacuum distillation tower having a reduced pressure and a reduced or minimized water vapor partial pressure. The lubricant feed can be separated into a plurality of lubricant boiling range products. The can allow an overlap in boiling ranges of one or more products separated from the lubricant feed to be reduced or minimized.
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