Process for vacuum distillation of a crude hydrocarbon stream
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United States of America Patent
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Oct 10, 2017
Grant Date -
Dec 4, 2014
app pub date -
Jan 15, 2013
filing date -
Jan 17, 2012
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Abstract
Disclosed is a process for vacuum distillation of a hydrocarbon stream comprising i) passing a hydrocarbon stream into a preflash vessel maintained under conditions to separate the hydrocarbon stream into a preflash liquid and a preflash vapor, ii) passing the preflash liquid into a vacuum furnace maintained under conditions to heat and partly vaporize the preflash liquid, iii) passing the heated furnace effluent into a zone located in the lower part of a vacuum distillation column maintained under fractionating conditions, and iv) passing the preflash vapor into the vacuum distillation column into a further zone located in the lower part of the vacuum distillation column.
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